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winlin
db405b7e 1 parent f656087d

support forward stream to origin/edge

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... ... @@ -47,14 +47,16 @@ m3u8 url: http://127.0.0.1:80/live/livestream.m3u8
8. support cache last gop for flash player to fast startup.<br/>
9. support listen at multiple ports.<br/>
10. support long time(>4.6hours) publish/play.<br/>
11. [dev] support forward publish stream to build active-standby cluster.<br/>
12. [plan] support live stream transcoding by ffmpeg.<br/>
13. [plan] support full http callback api.<br/>
14. [plan] support network based cli and json result.<br/>
15. [plan] support bandwidth test api and flash client.<br/>
16. no edge server, origin server only.<br/>
17. no vod streaming, live streaming only.<br/>
18. no multiple processes, single process only.<br/>
11. high performace, 1800 connections(500kbps), 900Mbps, CPU 90.2%, 41MB<br/>
12. support forward publish stream to build active-standby cluster.<br/>
13. support broadcast by forward the stream to other servers(origin/edge).<br/>
14. [plan] support live stream transcoding by ffmpeg.<br/>
15. [plan] support full http callback api.<br/>
16. [plan] support network based cli and json result.<br/>
17. [plan] support bandwidth test api and flash client.<br/>
18. no edge server, origin server only.<br/>
19. no vod streaming, live streaming only.<br/>
20. no multiple processes, single process only.<br/>
### Performance
1. 300 connections, 150Mbps, 500kbps, CPU 18.8%, 5956KB.
... ...
... ... @@ -15,7 +15,7 @@ vhost __defaultVhost__ {
hls_path ./objs/nginx/html;
hls_fragment 5;
hls_window 30;
forward 192.168.1.50;
forward 127.0.0.1:1936;
}
# the vhost which forward publish streams.
vhost forward.vhost.com {
... ... @@ -103,6 +103,9 @@ pithy_print {
publish 2000;
# shared print interval for all play clients, in milliseconds.
# if not specified, set to 1300.
play 3000;
play 3000;
# shared print interval for all forwarders, in milliseconds.
# if not specified, set to 2000.
forwarder 3000;
}
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_client.hpp>
#include <arpa/inet.h>
#include <stdlib.h>
#include <srs_core_error.hpp>
#include <srs_core_log.hpp>
#include <srs_core_rtmp.hpp>
#include <srs_core_protocol.hpp>
#include <srs_core_autofree.hpp>
#include <srs_core_source.hpp>
#include <srs_core_server.hpp>
#include <srs_core_pithy_print.hpp>
#include <srs_core_config.hpp>
#include <srs_core_refer.hpp>
#include <srs_core_hls.hpp>
#define SRS_PULSE_TIMEOUT_MS 100
#define SRS_SEND_TIMEOUT_US 5000000L
#define SRS_RECV_TIMEOUT_US SRS_SEND_TIMEOUT_US
#define SRS_STREAM_BUSY_SLEEP_MS 2000
SrsClient::SrsClient(SrsServer* srs_server, st_netfd_t client_stfd)
: SrsConnection(srs_server, client_stfd)
{
ip = NULL;
req = new SrsRequest();
res = new SrsResponse();
rtmp = new SrsRtmp(client_stfd);
refer = new SrsRefer();
}
SrsClient::~SrsClient()
{
srs_freepa(ip);
srs_freep(req);
srs_freep(res);
srs_freep(rtmp);
srs_freep(refer);
}
// TODO: return detail message when error for client.
int SrsClient::do_cycle()
{
int ret = ERROR_SUCCESS;
if ((ret = get_peer_ip()) != ERROR_SUCCESS) {
srs_error("get peer ip failed. ret=%d", ret);
return ret;
}
srs_trace("get peer ip success. ip=%s, send_to=%"PRId64", recv_to=%"PRId64"",
ip, SRS_SEND_TIMEOUT_US, SRS_RECV_TIMEOUT_US);
rtmp->set_recv_timeout(SRS_RECV_TIMEOUT_US);
rtmp->set_send_timeout(SRS_SEND_TIMEOUT_US);
if ((ret = rtmp->handshake()) != ERROR_SUCCESS) {
srs_error("rtmp handshake failed. ret=%d", ret);
return ret;
}
srs_verbose("rtmp handshake success");
if ((ret = rtmp->connect_app(req)) != ERROR_SUCCESS) {
srs_error("rtmp connect vhost/app failed. ret=%d", ret);
return ret;
}
srs_verbose("rtmp connect app success");
if ((ret = check_vhost()) != ERROR_SUCCESS) {
srs_error("check vhost failed. ret=%d", ret);
return ret;
}
srs_verbose("check vhost success.");
srs_trace("rtmp connect app success. "
"tcUrl=%s, pageUrl=%s, swfUrl=%s, schema=%s, vhost=%s, port=%s, app=%s",
req->tcUrl.c_str(), req->pageUrl.c_str(), req->swfUrl.c_str(),
req->schema.c_str(), req->vhost.c_str(), req->port.c_str(),
req->app.c_str());
if ((ret = refer->check(req->pageUrl, config->get_refer(req->vhost))) != ERROR_SUCCESS) {
srs_error("check refer failed. ret=%d", ret);
return ret;
}
srs_verbose("check refer success.");
if ((ret = rtmp->set_window_ack_size(2.5 * 1000 * 1000)) != ERROR_SUCCESS) {
srs_error("set window acknowledgement size failed. ret=%d", ret);
return ret;
}
srs_verbose("set window acknowledgement size success");
if ((ret = rtmp->set_peer_bandwidth(2.5 * 1000 * 1000, 2)) != ERROR_SUCCESS) {
srs_error("set peer bandwidth failed. ret=%d", ret);
return ret;
}
srs_verbose("set peer bandwidth success");
if ((ret = rtmp->response_connect_app(req)) != ERROR_SUCCESS) {
srs_error("response connect app failed. ret=%d", ret);
return ret;
}
srs_verbose("response connect app success");
if ((ret = rtmp->on_bw_done()) != ERROR_SUCCESS) {
srs_error("on_bw_done failed. ret=%d", ret);
return ret;
}
srs_verbose("on_bw_done success");
SrsClientType type;
if ((ret = rtmp->identify_client(res->stream_id, type, req->stream)) != ERROR_SUCCESS) {
srs_error("identify client failed. ret=%d", ret);
return ret;
}
req->strip();
srs_trace("identify client success. type=%d, stream_name=%s", type, req->stream.c_str());
int chunk_size = 4096;
SrsConfDirective* conf = config->get_chunk_size();
if (conf && !conf->arg0().empty()) {
chunk_size = ::atoi(conf->arg0().c_str());
}
if ((ret = rtmp->set_chunk_size(chunk_size)) != ERROR_SUCCESS) {
srs_error("set chunk_size=%d failed. ret=%d", chunk_size, ret);
return ret;
}
srs_trace("set chunk_size=%d success", chunk_size);
// find a source to publish.
SrsSource* source = SrsSource::find(req->get_stream_url());
srs_assert(source != NULL);
// check publish available.
if (type != SrsClientPlay && !source->can_publish()) {
ret = ERROR_SYSTEM_STREAM_BUSY;
srs_warn("stream %s is already publishing. ret=%d",
req->get_stream_url().c_str(), ret);
// to delay request
st_usleep(SRS_STREAM_BUSY_SLEEP_MS * 1000);
return ret;
}
bool enabled_cache = true;
conf = config->get_gop_cache(req->vhost);
if (conf && conf->arg0() == "off") {
enabled_cache = false;
}
source->set_cache(enabled_cache);
srs_info("source found, url=%s, enabled_cache=%d", req->get_stream_url().c_str(), enabled_cache);
switch (type) {
case SrsClientPlay: {
srs_verbose("start to play stream %s.", req->stream.c_str());
if ((ret = rtmp->start_play(res->stream_id)) != ERROR_SUCCESS) {
srs_error("start to play stream failed. ret=%d", ret);
return ret;
}
srs_info("start to play stream %s success", req->stream.c_str());
return playing(source);
}
case SrsClientFMLEPublish: {
srs_verbose("FMLE start to publish stream %s.", req->stream.c_str());
if ((ret = rtmp->start_fmle_publish(res->stream_id)) != ERROR_SUCCESS) {
srs_error("start to publish stream failed. ret=%d", ret);
return ret;
}
srs_info("start to publish stream %s success", req->stream.c_str());
ret = publish(source, true);
source->on_unpublish();
return ret;
}
case SrsClientFlashPublish: {
srs_verbose("flash start to publish stream %s.", req->stream.c_str());
if ((ret = rtmp->start_flash_publish(res->stream_id)) != ERROR_SUCCESS) {
srs_error("flash start to publish stream failed. ret=%d", ret);
return ret;
}
srs_info("flash start to publish stream %s success", req->stream.c_str());
ret = publish(source, false);
source->on_unpublish();
return ret;
}
default: {
ret = ERROR_SYSTEM_CLIENT_INVALID;
srs_info("invalid client type=%d. ret=%d", type, ret);
return ret;
}
}
return ret;
}
int SrsClient::check_vhost()
{
int ret = ERROR_SUCCESS;
srs_assert(req != NULL);
SrsConfDirective* vhost = config->get_vhost(req->vhost);
if (vhost == NULL) {
ret = ERROR_RTMP_VHOST_NOT_FOUND;
srs_error("vhost %s not found. ret=%d", req->vhost.c_str(), ret);
return ret;
}
SrsConfDirective* conf = NULL;
if ((conf = config->get_vhost_enabled(req->vhost)) != NULL && conf->arg0() != "on") {
ret = ERROR_RTMP_VHOST_NOT_FOUND;
srs_error("vhost %s disabled. ret=%d", req->vhost.c_str(), ret);
return ret;
}
if (req->vhost != vhost->arg0()) {
srs_trace("vhost change from %s to %s", req->vhost.c_str(), vhost->arg0().c_str());
req->vhost = vhost->arg0();
}
return ret;
}
int SrsClient::playing(SrsSource* source)
{
int ret = ERROR_SUCCESS;
if ((ret = refer->check(req->pageUrl, config->get_refer_play(req->vhost))) != ERROR_SUCCESS) {
srs_error("check play_refer failed. ret=%d", ret);
return ret;
}
srs_verbose("check play_refer success.");
SrsConsumer* consumer = NULL;
if ((ret = source->create_consumer(consumer)) != ERROR_SUCCESS) {
srs_error("create consumer failed. ret=%d", ret);
return ret;
}
srs_assert(consumer != NULL);
SrsAutoFree(SrsConsumer, consumer, false);
srs_verbose("consumer created success.");
rtmp->set_recv_timeout(SRS_PULSE_TIMEOUT_MS * 1000);
SrsPithyPrint pithy_print(SRS_STAGE_PLAY_USER);
while (true) {
pithy_print.elapse(SRS_PULSE_TIMEOUT_MS);
// switch to other st-threads.
st_usleep(0);
// read from client.
int ctl_msg_ret = ERROR_SUCCESS;
if (true) {
SrsCommonMessage* msg = NULL;
ctl_msg_ret = ret = rtmp->recv_message(&msg);
srs_verbose("play loop recv message. ret=%d", ret);
if (ret != ERROR_SUCCESS && ret != ERROR_SOCKET_TIMEOUT) {
srs_error("recv client control message failed. ret=%d", ret);
return ret;
}
if ((ret = process_play_control_msg(consumer, msg)) != ERROR_SUCCESS) {
srs_error("process play control message failed. ret=%d", ret);
return ret;
}
}
// get messages from consumer.
SrsSharedPtrMessage** msgs = NULL;
int count = 0;
if ((ret = consumer->get_packets(0, msgs, count)) != ERROR_SUCCESS) {
srs_error("get messages from consumer failed. ret=%d", ret);
return ret;
}
// reportable
if (pithy_print.can_print()) {
srs_trace("-> clock=%u, time=%"PRId64", cmr=%d, msgs=%d, obytes=%"PRId64", ibytes=%"PRId64", okbps=%d, ikbps=%d",
(int)(srs_get_system_time_ms()/1000), pithy_print.get_age(), ctl_msg_ret, count, rtmp->get_send_bytes(), rtmp->get_recv_bytes(), rtmp->get_send_kbps(), rtmp->get_recv_kbps());
}
if (count <= 0) {
srs_verbose("no packets in queue.");
continue;
}
SrsAutoFree(SrsSharedPtrMessage*, msgs, true);
// sendout messages
for (int i = 0; i < count; i++) {
SrsSharedPtrMessage* msg = msgs[i];
// the send_message will free the msg,
// so set the msgs[i] to NULL.
msgs[i] = NULL;
if ((ret = rtmp->send_message(msg)) != ERROR_SUCCESS) {
srs_error("send message to client failed. ret=%d", ret);
return ret;
}
}
}
return ret;
}
int SrsClient::publish(SrsSource* source, bool is_fmle)
{
int ret = ERROR_SUCCESS;
if ((ret = refer->check(req->pageUrl, config->get_refer_publish(req->vhost))) != ERROR_SUCCESS) {
srs_error("check publish_refer failed. ret=%d", ret);
return ret;
}
srs_verbose("check publish_refer success.");
SrsPithyPrint pithy_print(SRS_STAGE_PUBLISH_USER);
// notify the hls to prepare when publish start.
if ((ret = source->on_publish(req->vhost, req->app, req->stream)) != ERROR_SUCCESS) {
srs_error("hls on_publish failed. ret=%d", ret);
return ret;
}
srs_verbose("hls on_publish success.");
while (true) {
// switch to other st-threads.
st_usleep(0);
SrsCommonMessage* msg = NULL;
if ((ret = rtmp->recv_message(&msg)) != ERROR_SUCCESS) {
srs_error("recv identify client message failed. ret=%d", ret);
return ret;
}
SrsAutoFree(SrsCommonMessage, msg, false);
pithy_print.set_age(msg->header.timestamp);
// reportable
if (pithy_print.can_print()) {
srs_trace("<- clock=%u, time=%"PRId64", obytes=%"PRId64", ibytes=%"PRId64", okbps=%d, ikbps=%d",
(int)(srs_get_system_time_ms()/1000), pithy_print.get_age(), rtmp->get_send_bytes(), rtmp->get_recv_bytes(), rtmp->get_send_kbps(), rtmp->get_recv_kbps());
}
if ((ret = process_publish_message(source, msg, is_fmle)) != ERROR_SUCCESS) {
srs_error("process publish message failed. ret=%d", ret);
return ret;
}
}
return ret;
}
int SrsClient::process_publish_message(SrsSource* source, SrsCommonMessage* msg, bool is_fmle)
{
int ret = ERROR_SUCCESS;
// process audio packet
if (msg->header.is_audio()) {
if ((ret = source->on_audio(msg)) != ERROR_SUCCESS) {
srs_error("source process audio message failed. ret=%d", ret);
return ret;
}
}
// process video packet
if (msg->header.is_video()) {
if ((ret = source->on_video(msg)) != ERROR_SUCCESS) {
srs_error("source process video message failed. ret=%d", ret);
return ret;
}
}
// process onMetaData
if (msg->header.is_amf0_data() || msg->header.is_amf3_data()) {
if ((ret = msg->decode_packet(rtmp->get_protocol())) != ERROR_SUCCESS) {
srs_error("decode onMetaData message failed. ret=%d", ret);
return ret;
}
SrsPacket* pkt = msg->get_packet();
if (dynamic_cast<SrsOnMetaDataPacket*>(pkt)) {
SrsOnMetaDataPacket* metadata = dynamic_cast<SrsOnMetaDataPacket*>(pkt);
if ((ret = source->on_meta_data(msg, metadata)) != ERROR_SUCCESS) {
srs_error("source process onMetaData message failed. ret=%d", ret);
return ret;
}
srs_trace("process onMetaData message success.");
return ret;
}
srs_trace("ignore AMF0/AMF3 data message.");
return ret;
}
// process UnPublish event.
if (msg->header.is_amf0_command() || msg->header.is_amf3_command()) {
if ((ret = msg->decode_packet(rtmp->get_protocol())) != ERROR_SUCCESS) {
srs_error("decode unpublish message failed. ret=%d", ret);
return ret;
}
// flash unpublish.
if (!is_fmle) {
srs_trace("flash publish finished.");
return ret;
}
SrsPacket* pkt = msg->get_packet();
if (dynamic_cast<SrsFMLEStartPacket*>(pkt)) {
SrsFMLEStartPacket* unpublish = dynamic_cast<SrsFMLEStartPacket*>(pkt);
return rtmp->fmle_unpublish(res->stream_id, unpublish->transaction_id);
}
srs_trace("ignore AMF0/AMF3 command message.");
return ret;
}
return ret;
}
int SrsClient::get_peer_ip()
{
int ret = ERROR_SUCCESS;
int fd = st_netfd_fileno(stfd);
// discovery client information
sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
if (getpeername(fd, (sockaddr*)&addr, &addrlen) == -1) {
ret = ERROR_SOCKET_GET_PEER_NAME;
srs_error("discovery client information failed. ret=%d", ret);
return ret;
}
srs_verbose("get peer name success.");
// ip v4 or v6
char buf[INET6_ADDRSTRLEN];
memset(buf, 0, sizeof(buf));
if ((inet_ntop(addr.sin_family, &addr.sin_addr, buf, sizeof(buf))) == NULL) {
ret = ERROR_SOCKET_GET_PEER_IP;
srs_error("convert client information failed. ret=%d", ret);
return ret;
}
srs_verbose("get peer ip of client ip=%s, fd=%d", buf, fd);
ip = new char[strlen(buf) + 1];
strcpy(ip, buf);
srs_verbose("get peer ip success. ip=%s, fd=%d", ip, fd);
return ret;
}
int SrsClient::process_play_control_msg(SrsConsumer* consumer, SrsCommonMessage* msg)
{
int ret = ERROR_SUCCESS;
if (!msg) {
srs_verbose("ignore all empty message.");
return ret;
}
SrsAutoFree(SrsCommonMessage, msg, false);
if (!msg->header.is_amf0_command() && !msg->header.is_amf3_command()) {
srs_info("ignore all message except amf0/amf3 command.");
return ret;
}
if ((ret = msg->decode_packet(rtmp->get_protocol())) != ERROR_SUCCESS) {
srs_error("decode the amf0/amf3 command packet failed. ret=%d", ret);
return ret;
}
srs_info("decode the amf0/amf3 command packet success.");
SrsPausePacket* pause = dynamic_cast<SrsPausePacket*>(msg->get_packet());
if (!pause) {
srs_info("ignore all amf0/amf3 command except pause.");
return ret;
}
if ((ret = rtmp->on_play_client_pause(res->stream_id, pause->is_pause)) != ERROR_SUCCESS) {
srs_error("rtmp process play client pause failed. ret=%d", ret);
return ret;
}
if ((ret = consumer->on_play_client_pause(pause->is_pause)) != ERROR_SUCCESS) {
srs_error("consumer process play client pause failed. ret=%d", ret);
return ret;
}
srs_info("process pause success, is_pause=%d, time=%d.", pause->is_pause, pause->time_ms);
return ret;
}
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_client.hpp>
#include <arpa/inet.h>
#include <stdlib.h>
#include <srs_core_error.hpp>
#include <srs_core_log.hpp>
#include <srs_core_rtmp.hpp>
#include <srs_core_protocol.hpp>
#include <srs_core_autofree.hpp>
#include <srs_core_source.hpp>
#include <srs_core_server.hpp>
#include <srs_core_pithy_print.hpp>
#include <srs_core_config.hpp>
#include <srs_core_refer.hpp>
#include <srs_core_hls.hpp>
#define SRS_PULSE_TIMEOUT_MS 100
#define SRS_SEND_TIMEOUT_US 5000000L
#define SRS_RECV_TIMEOUT_US SRS_SEND_TIMEOUT_US
#define SRS_STREAM_BUSY_SLEEP_MS 2000
SrsClient::SrsClient(SrsServer* srs_server, st_netfd_t client_stfd)
: SrsConnection(srs_server, client_stfd)
{
ip = NULL;
req = new SrsRequest();
res = new SrsResponse();
rtmp = new SrsRtmp(client_stfd);
refer = new SrsRefer();
}
SrsClient::~SrsClient()
{
srs_freepa(ip);
srs_freep(req);
srs_freep(res);
srs_freep(rtmp);
srs_freep(refer);
}
// TODO: return detail message when error for client.
int SrsClient::do_cycle()
{
int ret = ERROR_SUCCESS;
if ((ret = get_peer_ip()) != ERROR_SUCCESS) {
srs_error("get peer ip failed. ret=%d", ret);
return ret;
}
srs_trace("get peer ip success. ip=%s, send_to=%"PRId64", recv_to=%"PRId64"",
ip, SRS_SEND_TIMEOUT_US, SRS_RECV_TIMEOUT_US);
rtmp->set_recv_timeout(SRS_RECV_TIMEOUT_US);
rtmp->set_send_timeout(SRS_SEND_TIMEOUT_US);
if ((ret = rtmp->handshake()) != ERROR_SUCCESS) {
srs_error("rtmp handshake failed. ret=%d", ret);
return ret;
}
srs_verbose("rtmp handshake success");
if ((ret = rtmp->connect_app(req)) != ERROR_SUCCESS) {
srs_error("rtmp connect vhost/app failed. ret=%d", ret);
return ret;
}
srs_verbose("rtmp connect app success");
if ((ret = check_vhost()) != ERROR_SUCCESS) {
srs_error("check vhost failed. ret=%d", ret);
return ret;
}
srs_verbose("check vhost success.");
srs_trace("rtmp connect app success. "
"tcUrl=%s, pageUrl=%s, swfUrl=%s, schema=%s, vhost=%s, port=%s, app=%s",
req->tcUrl.c_str(), req->pageUrl.c_str(), req->swfUrl.c_str(),
req->schema.c_str(), req->vhost.c_str(), req->port.c_str(),
req->app.c_str());
if ((ret = refer->check(req->pageUrl, config->get_refer(req->vhost))) != ERROR_SUCCESS) {
srs_error("check refer failed. ret=%d", ret);
return ret;
}
srs_verbose("check refer success.");
if ((ret = rtmp->set_window_ack_size(2.5 * 1000 * 1000)) != ERROR_SUCCESS) {
srs_error("set window acknowledgement size failed. ret=%d", ret);
return ret;
}
srs_verbose("set window acknowledgement size success");
if ((ret = rtmp->set_peer_bandwidth(2.5 * 1000 * 1000, 2)) != ERROR_SUCCESS) {
srs_error("set peer bandwidth failed. ret=%d", ret);
return ret;
}
srs_verbose("set peer bandwidth success");
if ((ret = rtmp->response_connect_app(req)) != ERROR_SUCCESS) {
srs_error("response connect app failed. ret=%d", ret);
return ret;
}
srs_verbose("response connect app success");
if ((ret = rtmp->on_bw_done()) != ERROR_SUCCESS) {
srs_error("on_bw_done failed. ret=%d", ret);
return ret;
}
srs_verbose("on_bw_done success");
SrsClientType type;
if ((ret = rtmp->identify_client(res->stream_id, type, req->stream)) != ERROR_SUCCESS) {
srs_error("identify client failed. ret=%d", ret);
return ret;
}
req->strip();
srs_trace("identify client success. type=%d, stream_name=%s", type, req->stream.c_str());
int chunk_size = 4096;
SrsConfDirective* conf = config->get_chunk_size();
if (conf && !conf->arg0().empty()) {
chunk_size = ::atoi(conf->arg0().c_str());
}
if ((ret = rtmp->set_chunk_size(chunk_size)) != ERROR_SUCCESS) {
srs_error("set chunk_size=%d failed. ret=%d", chunk_size, ret);
return ret;
}
srs_trace("set chunk_size=%d success", chunk_size);
// find a source to publish.
SrsSource* source = SrsSource::find(req->get_stream_url());
srs_assert(source != NULL);
// check publish available.
if (type != SrsClientPlay && !source->can_publish()) {
ret = ERROR_SYSTEM_STREAM_BUSY;
srs_warn("stream %s is already publishing. ret=%d",
req->get_stream_url().c_str(), ret);
// to delay request
st_usleep(SRS_STREAM_BUSY_SLEEP_MS * 1000);
return ret;
}
bool enabled_cache = true;
conf = config->get_gop_cache(req->vhost);
if (conf && conf->arg0() == "off") {
enabled_cache = false;
}
source->set_cache(enabled_cache);
srs_info("source found, url=%s, enabled_cache=%d", req->get_stream_url().c_str(), enabled_cache);
switch (type) {
case SrsClientPlay: {
srs_verbose("start to play stream %s.", req->stream.c_str());
if ((ret = rtmp->start_play(res->stream_id)) != ERROR_SUCCESS) {
srs_error("start to play stream failed. ret=%d", ret);
return ret;
}
srs_info("start to play stream %s success", req->stream.c_str());
return playing(source);
}
case SrsClientFMLEPublish: {
srs_verbose("FMLE start to publish stream %s.", req->stream.c_str());
if ((ret = rtmp->start_fmle_publish(res->stream_id)) != ERROR_SUCCESS) {
srs_error("start to publish stream failed. ret=%d", ret);
return ret;
}
srs_info("start to publish stream %s success", req->stream.c_str());
ret = publish(source, true);
source->on_unpublish();
return ret;
}
case SrsClientFlashPublish: {
srs_verbose("flash start to publish stream %s.", req->stream.c_str());
if ((ret = rtmp->start_flash_publish(res->stream_id)) != ERROR_SUCCESS) {
srs_error("flash start to publish stream failed. ret=%d", ret);
return ret;
}
srs_info("flash start to publish stream %s success", req->stream.c_str());
ret = publish(source, false);
source->on_unpublish();
return ret;
}
default: {
ret = ERROR_SYSTEM_CLIENT_INVALID;
srs_info("invalid client type=%d. ret=%d", type, ret);
return ret;
}
}
return ret;
}
int SrsClient::check_vhost()
{
int ret = ERROR_SUCCESS;
srs_assert(req != NULL);
SrsConfDirective* vhost = config->get_vhost(req->vhost);
if (vhost == NULL) {
ret = ERROR_RTMP_VHOST_NOT_FOUND;
srs_error("vhost %s not found. ret=%d", req->vhost.c_str(), ret);
return ret;
}
SrsConfDirective* conf = NULL;
if ((conf = config->get_vhost_enabled(req->vhost)) != NULL && conf->arg0() != "on") {
ret = ERROR_RTMP_VHOST_NOT_FOUND;
srs_error("vhost %s disabled. ret=%d", req->vhost.c_str(), ret);
return ret;
}
if (req->vhost != vhost->arg0()) {
srs_trace("vhost change from %s to %s", req->vhost.c_str(), vhost->arg0().c_str());
req->vhost = vhost->arg0();
}
return ret;
}
int SrsClient::playing(SrsSource* source)
{
int ret = ERROR_SUCCESS;
if ((ret = refer->check(req->pageUrl, config->get_refer_play(req->vhost))) != ERROR_SUCCESS) {
srs_error("check play_refer failed. ret=%d", ret);
return ret;
}
srs_verbose("check play_refer success.");
SrsConsumer* consumer = NULL;
if ((ret = source->create_consumer(consumer)) != ERROR_SUCCESS) {
srs_error("create consumer failed. ret=%d", ret);
return ret;
}
srs_assert(consumer != NULL);
SrsAutoFree(SrsConsumer, consumer, false);
srs_verbose("consumer created success.");
rtmp->set_recv_timeout(SRS_PULSE_TIMEOUT_MS * 1000);
SrsPithyPrint pithy_print(SRS_STAGE_PLAY_USER);
while (true) {
pithy_print.elapse(SRS_PULSE_TIMEOUT_MS);
// switch to other st-threads.
st_usleep(0);
// read from client.
int ctl_msg_ret = ERROR_SUCCESS;
if (true) {
SrsCommonMessage* msg = NULL;
ctl_msg_ret = ret = rtmp->recv_message(&msg);
srs_verbose("play loop recv message. ret=%d", ret);
if (ret != ERROR_SUCCESS && ret != ERROR_SOCKET_TIMEOUT) {
srs_error("recv client control message failed. ret=%d", ret);
return ret;
}
if ((ret = process_play_control_msg(consumer, msg)) != ERROR_SUCCESS) {
srs_error("process play control message failed. ret=%d", ret);
return ret;
}
}
// get messages from consumer.
SrsSharedPtrMessage** msgs = NULL;
int count = 0;
if ((ret = consumer->get_packets(0, msgs, count)) != ERROR_SUCCESS) {
srs_error("get messages from consumer failed. ret=%d", ret);
return ret;
}
// reportable
if (pithy_print.can_print()) {
srs_trace("-> clock=%u, time=%"PRId64", cmr=%d, msgs=%d, obytes=%"PRId64", ibytes=%"PRId64", okbps=%d, ikbps=%d",
(int)(srs_get_system_time_ms()/1000), pithy_print.get_age(), ctl_msg_ret, count, rtmp->get_send_bytes(), rtmp->get_recv_bytes(), rtmp->get_send_kbps(), rtmp->get_recv_kbps());
}
if (count <= 0) {
srs_verbose("no packets in queue.");
continue;
}
SrsAutoFree(SrsSharedPtrMessage*, msgs, true);
// sendout messages
for (int i = 0; i < count; i++) {
SrsSharedPtrMessage* msg = msgs[i];
// the send_message will free the msg,
// so set the msgs[i] to NULL.
msgs[i] = NULL;
if ((ret = rtmp->send_message(msg)) != ERROR_SUCCESS) {
srs_error("send message to client failed. ret=%d", ret);
return ret;
}
}
}
return ret;
}
int SrsClient::publish(SrsSource* source, bool is_fmle)
{
int ret = ERROR_SUCCESS;
if ((ret = refer->check(req->pageUrl, config->get_refer_publish(req->vhost))) != ERROR_SUCCESS) {
srs_error("check publish_refer failed. ret=%d", ret);
return ret;
}
srs_verbose("check publish_refer success.");
SrsPithyPrint pithy_print(SRS_STAGE_PUBLISH_USER);
// notify the hls to prepare when publish start.
if ((ret = source->on_publish(req->vhost, req->app, req->stream)) != ERROR_SUCCESS) {
srs_error("hls on_publish failed. ret=%d", ret);
return ret;
}
srs_verbose("hls on_publish success.");
while (true) {
// switch to other st-threads.
st_usleep(0);
SrsCommonMessage* msg = NULL;
if ((ret = rtmp->recv_message(&msg)) != ERROR_SUCCESS) {
srs_error("recv identify client message failed. ret=%d", ret);
return ret;
}
SrsAutoFree(SrsCommonMessage, msg, false);
pithy_print.set_age(msg->header.timestamp);
// reportable
if (pithy_print.can_print()) {
srs_trace("<- clock=%u, time=%"PRId64", obytes=%"PRId64", ibytes=%"PRId64", okbps=%d, ikbps=%d",
(int)(srs_get_system_time_ms()/1000), pithy_print.get_age(), rtmp->get_send_bytes(), rtmp->get_recv_bytes(), rtmp->get_send_kbps(), rtmp->get_recv_kbps());
}
if ((ret = process_publish_message(source, msg, is_fmle)) != ERROR_SUCCESS) {
srs_error("process publish message failed. ret=%d", ret);
return ret;
}
}
return ret;
}
int SrsClient::process_publish_message(SrsSource* source, SrsCommonMessage* msg, bool is_fmle)
{
int ret = ERROR_SUCCESS;
// process audio packet
if (msg->header.is_audio()) {
if ((ret = source->on_audio(msg)) != ERROR_SUCCESS) {
srs_error("source process audio message failed. ret=%d", ret);
return ret;
}
}
// process video packet
if (msg->header.is_video()) {
if ((ret = source->on_video(msg)) != ERROR_SUCCESS) {
srs_error("source process video message failed. ret=%d", ret);
return ret;
}
}
// process onMetaData
if (msg->header.is_amf0_data() || msg->header.is_amf3_data()) {
if ((ret = msg->decode_packet(rtmp->get_protocol())) != ERROR_SUCCESS) {
srs_error("decode onMetaData message failed. ret=%d", ret);
return ret;
}
SrsPacket* pkt = msg->get_packet();
if (dynamic_cast<SrsOnMetaDataPacket*>(pkt)) {
SrsOnMetaDataPacket* metadata = dynamic_cast<SrsOnMetaDataPacket*>(pkt);
if ((ret = source->on_meta_data(msg, metadata)) != ERROR_SUCCESS) {
srs_error("source process onMetaData message failed. ret=%d", ret);
return ret;
}
srs_trace("process onMetaData message success.");
return ret;
}
srs_trace("ignore AMF0/AMF3 data message.");
return ret;
}
// process UnPublish event.
if (msg->header.is_amf0_command() || msg->header.is_amf3_command()) {
if ((ret = msg->decode_packet(rtmp->get_protocol())) != ERROR_SUCCESS) {
srs_error("decode unpublish message failed. ret=%d", ret);
return ret;
}
// flash unpublish.
if (!is_fmle) {
srs_trace("flash publish finished.");
return ret;
}
SrsPacket* pkt = msg->get_packet();
if (dynamic_cast<SrsFMLEStartPacket*>(pkt)) {
SrsFMLEStartPacket* unpublish = dynamic_cast<SrsFMLEStartPacket*>(pkt);
return rtmp->fmle_unpublish(res->stream_id, unpublish->transaction_id);
}
srs_trace("ignore AMF0/AMF3 command message.");
return ret;
}
return ret;
}
int SrsClient::get_peer_ip()
{
int ret = ERROR_SUCCESS;
int fd = st_netfd_fileno(stfd);
// discovery client information
sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
if (getpeername(fd, (sockaddr*)&addr, &addrlen) == -1) {
ret = ERROR_SOCKET_GET_PEER_NAME;
srs_error("discovery client information failed. ret=%d", ret);
return ret;
}
srs_verbose("get peer name success.");
// ip v4 or v6
char buf[INET6_ADDRSTRLEN];
memset(buf, 0, sizeof(buf));
if ((inet_ntop(addr.sin_family, &addr.sin_addr, buf, sizeof(buf))) == NULL) {
ret = ERROR_SOCKET_GET_PEER_IP;
srs_error("convert client information failed. ret=%d", ret);
return ret;
}
srs_verbose("get peer ip of client ip=%s, fd=%d", buf, fd);
ip = new char[strlen(buf) + 1];
strcpy(ip, buf);
srs_verbose("get peer ip success. ip=%s, fd=%d", ip, fd);
return ret;
}
int SrsClient::process_play_control_msg(SrsConsumer* consumer, SrsCommonMessage* msg)
{
int ret = ERROR_SUCCESS;
if (!msg) {
srs_verbose("ignore all empty message.");
return ret;
}
SrsAutoFree(SrsCommonMessage, msg, false);
if (!msg->header.is_amf0_command() && !msg->header.is_amf3_command()) {
srs_info("ignore all message except amf0/amf3 command.");
return ret;
}
if ((ret = msg->decode_packet(rtmp->get_protocol())) != ERROR_SUCCESS) {
srs_error("decode the amf0/amf3 command packet failed. ret=%d", ret);
return ret;
}
srs_info("decode the amf0/amf3 command packet success.");
SrsPausePacket* pause = dynamic_cast<SrsPausePacket*>(msg->get_packet());
if (!pause) {
srs_info("ignore all amf0/amf3 command except pause.");
return ret;
}
if ((ret = rtmp->on_play_client_pause(res->stream_id, pause->is_pause)) != ERROR_SUCCESS) {
srs_error("rtmp process play client pause failed. ret=%d", ret);
return ret;
}
if ((ret = consumer->on_play_client_pause(pause->is_pause)) != ERROR_SUCCESS) {
srs_error("consumer process play client pause failed. ret=%d", ret);
return ret;
}
srs_info("process pause success, is_pause=%d, time=%d.", pause->is_pause, pause->time_ms);
return ret;
}
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_config.hpp>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
// file operations.
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <vector>
#include <algorithm>
#include <srs_core_error.hpp>
#include <srs_core_log.hpp>
#include <srs_core_autofree.hpp>
#define FILE_OFFSET(fd) lseek(fd, 0, SEEK_CUR)
int64_t FILE_SIZE(int fd)
{
int64_t pre = FILE_OFFSET(fd);
int64_t pos = lseek(fd, 0, SEEK_END);
lseek(fd, pre, SEEK_SET);
return pos;
}
#define LF (char)0x0a
#define CR (char)0x0d
bool is_common_space(char ch)
{
return (ch == ' ' || ch == '\t' || ch == CR || ch == LF);
}
#define CONF_BUFFER_SIZE 4096
SrsFileBuffer::SrsFileBuffer()
{
fd = -1;
line = 0;
pos = last = start = new char[CONF_BUFFER_SIZE];
end = start + CONF_BUFFER_SIZE;
}
SrsFileBuffer::~SrsFileBuffer()
{
if (fd > 0) {
close(fd);
}
srs_freepa(start);
}
int SrsFileBuffer::open(const char* filename)
{
assert(fd == -1);
if ((fd = ::open(filename, O_RDONLY, 0)) < 0) {
srs_error("open conf file error. errno=%d(%s)", errno, strerror(errno));
return ERROR_SYSTEM_CONFIG_INVALID;
}
line = 1;
return ERROR_SUCCESS;
}
SrsConfDirective::SrsConfDirective()
{
}
SrsConfDirective::~SrsConfDirective()
{
std::vector<SrsConfDirective*>::iterator it;
for (it = directives.begin(); it != directives.end(); ++it) {
SrsConfDirective* directive = *it;
srs_freep(directive);
}
directives.clear();
}
std::string SrsConfDirective::arg0()
{
if (args.size() > 0) {
return args.at(0);
}
return "";
}
std::string SrsConfDirective::arg1()
{
if (args.size() > 1) {
return args.at(1);
}
return "";
}
std::string SrsConfDirective::arg2()
{
if (args.size() > 2) {
return args.at(2);
}
return "";
}
SrsConfDirective* SrsConfDirective::at(int index)
{
return directives.at(index);
}
SrsConfDirective* SrsConfDirective::get(std::string _name)
{
std::vector<SrsConfDirective*>::iterator it;
for (it = directives.begin(); it != directives.end(); ++it) {
SrsConfDirective* directive = *it;
if (directive->name == _name) {
return directive;
}
}
return NULL;
}
int SrsConfDirective::parse(const char* filename)
{
int ret = ERROR_SUCCESS;
SrsFileBuffer buffer;
if ((ret = buffer.open(filename)) != ERROR_SUCCESS) {
return ret;
}
return parse_conf(&buffer, parse_file);
}
// see: ngx_conf_parse
int SrsConfDirective::parse_conf(SrsFileBuffer* buffer, SrsDirectiveType type)
{
int ret = ERROR_SUCCESS;
while (true) {
std::vector<std::string> args;
ret = read_token(buffer, args);
/**
* ret maybe:
* ERROR_SYSTEM_CONFIG_INVALID error.
* ERROR_SYSTEM_CONFIG_DIRECTIVE directive terminated by ';' found
* ERROR_SYSTEM_CONFIG_BLOCK_START token terminated by '{' found
* ERROR_SYSTEM_CONFIG_BLOCK_END the '}' found
* ERROR_SYSTEM_CONFIG_EOF the config file is done
*/
if (ret == ERROR_SYSTEM_CONFIG_INVALID) {
return ret;
}
if (ret == ERROR_SYSTEM_CONFIG_BLOCK_END) {
if (type != parse_block) {
srs_error("line %d: unexpected \"}\"", buffer->line);
return ret;
}
return ERROR_SUCCESS;
}
if (ret == ERROR_SYSTEM_CONFIG_EOF) {
if (type == parse_block) {
srs_error("line %d: unexpected end of file, expecting \"}\"", buffer->line);
return ret;
}
return ERROR_SUCCESS;
}
if (args.empty()) {
srs_error("line %d: empty directive.", buffer->line);
return ret;
}
// build directive tree.
SrsConfDirective* directive = new SrsConfDirective();
directive->conf_line = buffer->line;
directive->name = args[0];
args.erase(args.begin());
directive->args.swap(args);
directives.push_back(directive);
if (ret == ERROR_SYSTEM_CONFIG_BLOCK_START) {
if ((ret = directive->parse_conf(buffer, parse_block)) != ERROR_SUCCESS) {
return ret;
}
}
}
return ret;
}
// see: ngx_conf_read_token
int SrsConfDirective::read_token(SrsFileBuffer* buffer, std::vector<std::string>& args)
{
int ret = ERROR_SUCCESS;
char* pstart = buffer->pos;
int startline = buffer->line;
bool sharp_comment = false;
bool d_quoted = false;
bool s_quoted = false;
bool need_space = false;
bool last_space = true;
while (true) {
if ((ret = refill_buffer(buffer, d_quoted, s_quoted, startline, pstart)) != ERROR_SUCCESS) {
if (!args.empty() || !last_space) {
srs_error("line %d: unexpected end of file, expecting ; or \"}\"", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ret;
}
char ch = *buffer->pos++;
if (ch == LF) {
buffer->line++;
sharp_comment = false;
}
if (sharp_comment) {
continue;
}
if (need_space) {
if (is_common_space(ch)) {
last_space = true;
need_space = false;
continue;
}
if (ch == ';') {
return ERROR_SYSTEM_CONFIG_DIRECTIVE;
}
if (ch == '{') {
return ERROR_SYSTEM_CONFIG_BLOCK_START;
}
srs_error("line %d: unexpected '%c'", buffer->line, ch);
return ERROR_SYSTEM_CONFIG_INVALID;
}
// last charecter is space.
if (last_space) {
if (is_common_space(ch)) {
continue;
}
pstart = buffer->pos - 1;
startline = buffer->line;
switch (ch) {
case ';':
if (args.size() == 0) {
srs_error("line %d: unexpected ';'", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ERROR_SYSTEM_CONFIG_DIRECTIVE;
case '{':
if (args.size() == 0) {
srs_error("line %d: unexpected '{'", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ERROR_SYSTEM_CONFIG_BLOCK_START;
case '}':
if (args.size() != 0) {
srs_error("line %d: unexpected '}'", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ERROR_SYSTEM_CONFIG_BLOCK_END;
case '#':
sharp_comment = 1;
continue;
case '"':
pstart++;
d_quoted = true;
last_space = 0;
continue;
case '\'':
pstart++;
s_quoted = true;
last_space = 0;
continue;
default:
last_space = 0;
continue;
}
} else {
// last charecter is not space
bool found = false;
if (d_quoted) {
if (ch == '"') {
d_quoted = false;
need_space = true;
found = true;
}
} else if (s_quoted) {
if (ch == '\'') {
s_quoted = false;
need_space = true;
found = true;
}
} else if (is_common_space(ch) || ch == ';' || ch == '{') {
last_space = true;
found = 1;
}
if (found) {
int len = buffer->pos - pstart;
char* word = new char[len];
memcpy(word, pstart, len);
word[len - 1] = 0;
args.push_back(word);
srs_freepa(word);
if (ch == ';') {
return ERROR_SYSTEM_CONFIG_DIRECTIVE;
}
if (ch == '{') {
return ERROR_SYSTEM_CONFIG_BLOCK_START;
}
}
}
}
return ret;
}
int SrsConfDirective::refill_buffer(SrsFileBuffer* buffer, bool d_quoted, bool s_quoted, int startline, char*& pstart)
{
int ret = ERROR_SUCCESS;
if (buffer->pos < buffer->last) {
return ret;
}
int size = FILE_SIZE(buffer->fd) - FILE_OFFSET(buffer->fd);
if (size <= 0) {
return ERROR_SYSTEM_CONFIG_EOF;
}
int len = buffer->pos - buffer->start;
if (len >= CONF_BUFFER_SIZE) {
buffer->line = startline;
if (!d_quoted && !s_quoted) {
srs_error("line %d: too long parameter \"%*s...\" started",
buffer->line, 10, buffer->start);
} else {
srs_error("line %d: too long parameter, "
"probably missing terminating '%c' character", buffer->line, d_quoted? '"':'\'');
}
return ERROR_SYSTEM_CONFIG_INVALID;
}
if (len) {
memmove(buffer->start, pstart, len);
}
size = srs_min(size, buffer->end - (buffer->start + len));
int n = read(buffer->fd, buffer->start + len, size);
if (n != size) {
srs_error("read file read error. expect %d, actual %d bytes.", size, n);
return ERROR_SYSTEM_CONFIG_INVALID;
}
buffer->pos = buffer->start + len;
buffer->last = buffer->pos + n;
pstart = buffer->start;
return ret;
}
SrsConfig* config = new SrsConfig();
SrsConfig::SrsConfig()
{
show_help = false;
show_version = false;
root = new SrsConfDirective();
root->conf_line = 0;
root->name = "root";
}
SrsConfig::~SrsConfig()
{
srs_freep(root);
}
int SrsConfig::reload()
{
int ret = ERROR_SUCCESS;
SrsConfig conf;
if ((ret = conf.parse_file(config_file.c_str())) != ERROR_SUCCESS) {
srs_error("config reloader parse file failed. ret=%d", ret);
return ret;
}
srs_info("config reloader parse file success.");
// store current root to old_root,
// and reap the root from conf to current root.
SrsConfDirective* old_root = root;
SrsAutoFree(SrsConfDirective, old_root, false);
root = conf.root;
conf.root = NULL;
// merge config.
std::vector<SrsReloadHandler*>::iterator it;
// merge config: listen
if (!srs_directive_equals(root->get("listen"), old_root->get("listen"))) {
for (it = subscribes.begin(); it != subscribes.end(); ++it) {
SrsReloadHandler* subscribe = *it;
if ((ret = subscribe->on_reload_listen()) != ERROR_SUCCESS) {
srs_error("notify subscribes reload listen failed. ret=%d", ret);
return ret;
}
}
srs_trace("reload listen success.");
}
// merge config: pithy_print
if (!srs_directive_equals(root->get("pithy_print"), old_root->get("pithy_print"))) {
for (it = subscribes.begin(); it != subscribes.end(); ++it) {
SrsReloadHandler* subscribe = *it;
if ((ret = subscribe->on_reload_pithy_print()) != ERROR_SUCCESS) {
srs_error("notify subscribes pithy_print listen failed. ret=%d", ret);
return ret;
}
}
srs_trace("reload pithy_print success.");
}
return ret;
}
void SrsConfig::subscribe(SrsReloadHandler* handler)
{
std::vector<SrsReloadHandler*>::iterator it;
it = std::find(subscribes.begin(), subscribes.end(), handler);
if (it != subscribes.end()) {
return;
}
subscribes.push_back(handler);
}
void SrsConfig::unsubscribe(SrsReloadHandler* handler)
{
std::vector<SrsReloadHandler*>::iterator it;
it = std::find(subscribes.begin(), subscribes.end(), handler);
if (it == subscribes.end()) {
return;
}
subscribes.erase(it);
}
// see: ngx_get_options
int SrsConfig::parse_options(int argc, char** argv)
{
int ret = ERROR_SUCCESS;
for (int i = 1; i < argc; i++) {
if ((ret = parse_argv(i, argv)) != ERROR_SUCCESS) {
return ret;
}
}
if (show_help) {
print_help(argv);
}
if (show_version) {
printf("%s\n", RTMP_SIG_SRS_VERSION);
}
if (show_help || show_version) {
exit(0);
}
if (config_file.empty()) {
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("config file not specified, see help: %s -h, ret=%d", argv[0], ret);
return ret;
}
return parse_file(config_file.c_str());
}
SrsConfDirective* SrsConfig::get_vhost(std::string vhost)
{
srs_assert(root);
for (int i = 0; i < (int)root->directives.size(); i++) {
SrsConfDirective* conf = root->at(i);
if (conf->name != "vhost") {
continue;
}
if (conf->arg0() == vhost) {
return conf;
}
}
if (vhost != RTMP_VHOST_DEFAULT) {
return get_vhost(RTMP_VHOST_DEFAULT);
}
return NULL;
}
SrsConfDirective* SrsConfig::get_vhost_enabled(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("enabled");
}
SrsConfDirective* SrsConfig::get_gop_cache(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("gop_cache");
}
SrsConfDirective* SrsConfig::get_forward(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("forward");
}
SrsConfDirective* SrsConfig::get_hls(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls");
}
SrsConfDirective* SrsConfig::get_hls_path(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls_path");
}
SrsConfDirective* SrsConfig::get_hls_fragment(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls_fragment");
}
SrsConfDirective* SrsConfig::get_hls_window(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls_window");
}
SrsConfDirective* SrsConfig::get_refer(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("refer");
}
SrsConfDirective* SrsConfig::get_refer_play(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("refer_play");
}
SrsConfDirective* SrsConfig::get_refer_publish(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("refer_publish");
}
SrsConfDirective* SrsConfig::get_listen()
{
return root->get("listen");
}
SrsConfDirective* SrsConfig::get_chunk_size()
{
return root->get("chunk_size");
}
SrsConfDirective* SrsConfig::get_pithy_print_publish()
{
SrsConfDirective* pithy = root->get("pithy_print");
if (!pithy) {
return NULL;
}
return pithy->get("publish");
}
SrsConfDirective* SrsConfig::get_pithy_print_play()
{
SrsConfDirective* pithy = root->get("pithy_print");
if (!pithy) {
return NULL;
}
return pithy->get("play");
}
int SrsConfig::parse_file(const char* filename)
{
int ret = ERROR_SUCCESS;
config_file = filename;
if (config_file.empty()) {
return ERROR_SYSTEM_CONFIG_INVALID;
}
if ((ret = root->parse(config_file.c_str())) != ERROR_SUCCESS) {
return ret;
}
SrsConfDirective* conf = NULL;
if ((conf = get_listen()) == NULL || conf->args.size() == 0) {
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("line %d: conf error, "
"directive \"listen\" is empty, ret=%d", (conf? conf->conf_line:0), ret);
return ret;
}
// TODO: check the hls.
// TODO: check other config.
// TODO: check hls.
// TODO: check ssl.
return ret;
}
int SrsConfig::parse_argv(int& i, char** argv)
{
int ret = ERROR_SUCCESS;
char* p = argv[i];
if (*p++ != '-') {
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("invalid options(index=%d, value=%s), "
"must starts with -, see help: %s -h, ret=%d", i, argv[i], argv[0], ret);
return ret;
}
while (*p) {
switch (*p++) {
case '?':
case 'h':
show_help = true;
break;
case 'v':
case 'V':
show_version = true;
break;
case 'c':
if (*p) {
config_file = p;
return ret;
}
if (argv[++i]) {
config_file = argv[i];
return ret;
}
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("option \"-c\" requires parameter, ret=%d", ret);
return ret;
default:
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("invalid option: \"%c\", see help: %s -h, ret=%d", *(p - 1), argv[0], ret);
return ret;
}
}
return ret;
}
void SrsConfig::print_help(char** argv)
{
printf(RTMP_SIG_SRS_NAME" "RTMP_SIG_SRS_VERSION
" Copyright (c) 2013 winlin\n"
"configuration: "SRS_CONFIGURE"\n"
"Usage: %s [-h?vV] [-c <filename>]\n"
"\n"
"Options:\n"
" -?-h : show help\n"
" -v-V : show version and exit\n"
" -c filename : set configuration file\n"
"\n"
RTMP_SIG_SRS_WEB"\n"
RTMP_SIG_SRS_URL"\n"
"Email: "RTMP_SIG_SRS_EMAIL"\n"
"\n",
argv[0]);
}
bool srs_directive_equals(SrsConfDirective* a, SrsConfDirective* b)
{
if (!a || !b) {
return false;
}
if (a->name != b->name) {
return false;
}
if (a->args.size() != b->args.size()) {
return false;
}
for (int i = 0; i < (int)a->args.size(); i++) {
if (a->args.at(i) != b->args.at(i)) {
return false;
}
}
if (a->directives.size() != b->directives.size()) {
return false;
}
for (int i = 0; i < (int)a->directives.size(); i++) {
SrsConfDirective* a0 = a->at(i);
SrsConfDirective* b0 = b->at(i);
if (!srs_directive_equals(a0, b0)) {
return false;
}
}
return true;
}
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_config.hpp>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
// file operations.
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <vector>
#include <algorithm>
#include <srs_core_error.hpp>
#include <srs_core_log.hpp>
#include <srs_core_autofree.hpp>
#define FILE_OFFSET(fd) lseek(fd, 0, SEEK_CUR)
int64_t FILE_SIZE(int fd)
{
int64_t pre = FILE_OFFSET(fd);
int64_t pos = lseek(fd, 0, SEEK_END);
lseek(fd, pre, SEEK_SET);
return pos;
}
#define LF (char)0x0a
#define CR (char)0x0d
bool is_common_space(char ch)
{
return (ch == ' ' || ch == '\t' || ch == CR || ch == LF);
}
#define CONF_BUFFER_SIZE 4096
SrsFileBuffer::SrsFileBuffer()
{
fd = -1;
line = 0;
pos = last = start = new char[CONF_BUFFER_SIZE];
end = start + CONF_BUFFER_SIZE;
}
SrsFileBuffer::~SrsFileBuffer()
{
if (fd > 0) {
close(fd);
}
srs_freepa(start);
}
int SrsFileBuffer::open(const char* filename)
{
assert(fd == -1);
if ((fd = ::open(filename, O_RDONLY, 0)) < 0) {
srs_error("open conf file error. errno=%d(%s)", errno, strerror(errno));
return ERROR_SYSTEM_CONFIG_INVALID;
}
line = 1;
return ERROR_SUCCESS;
}
SrsConfDirective::SrsConfDirective()
{
}
SrsConfDirective::~SrsConfDirective()
{
std::vector<SrsConfDirective*>::iterator it;
for (it = directives.begin(); it != directives.end(); ++it) {
SrsConfDirective* directive = *it;
srs_freep(directive);
}
directives.clear();
}
std::string SrsConfDirective::arg0()
{
if (args.size() > 0) {
return args.at(0);
}
return "";
}
std::string SrsConfDirective::arg1()
{
if (args.size() > 1) {
return args.at(1);
}
return "";
}
std::string SrsConfDirective::arg2()
{
if (args.size() > 2) {
return args.at(2);
}
return "";
}
SrsConfDirective* SrsConfDirective::at(int index)
{
return directives.at(index);
}
SrsConfDirective* SrsConfDirective::get(std::string _name)
{
std::vector<SrsConfDirective*>::iterator it;
for (it = directives.begin(); it != directives.end(); ++it) {
SrsConfDirective* directive = *it;
if (directive->name == _name) {
return directive;
}
}
return NULL;
}
int SrsConfDirective::parse(const char* filename)
{
int ret = ERROR_SUCCESS;
SrsFileBuffer buffer;
if ((ret = buffer.open(filename)) != ERROR_SUCCESS) {
return ret;
}
return parse_conf(&buffer, parse_file);
}
// see: ngx_conf_parse
int SrsConfDirective::parse_conf(SrsFileBuffer* buffer, SrsDirectiveType type)
{
int ret = ERROR_SUCCESS;
while (true) {
std::vector<std::string> args;
ret = read_token(buffer, args);
/**
* ret maybe:
* ERROR_SYSTEM_CONFIG_INVALID error.
* ERROR_SYSTEM_CONFIG_DIRECTIVE directive terminated by ';' found
* ERROR_SYSTEM_CONFIG_BLOCK_START token terminated by '{' found
* ERROR_SYSTEM_CONFIG_BLOCK_END the '}' found
* ERROR_SYSTEM_CONFIG_EOF the config file is done
*/
if (ret == ERROR_SYSTEM_CONFIG_INVALID) {
return ret;
}
if (ret == ERROR_SYSTEM_CONFIG_BLOCK_END) {
if (type != parse_block) {
srs_error("line %d: unexpected \"}\"", buffer->line);
return ret;
}
return ERROR_SUCCESS;
}
if (ret == ERROR_SYSTEM_CONFIG_EOF) {
if (type == parse_block) {
srs_error("line %d: unexpected end of file, expecting \"}\"", buffer->line);
return ret;
}
return ERROR_SUCCESS;
}
if (args.empty()) {
srs_error("line %d: empty directive.", buffer->line);
return ret;
}
// build directive tree.
SrsConfDirective* directive = new SrsConfDirective();
directive->conf_line = buffer->line;
directive->name = args[0];
args.erase(args.begin());
directive->args.swap(args);
directives.push_back(directive);
if (ret == ERROR_SYSTEM_CONFIG_BLOCK_START) {
if ((ret = directive->parse_conf(buffer, parse_block)) != ERROR_SUCCESS) {
return ret;
}
}
}
return ret;
}
// see: ngx_conf_read_token
int SrsConfDirective::read_token(SrsFileBuffer* buffer, std::vector<std::string>& args)
{
int ret = ERROR_SUCCESS;
char* pstart = buffer->pos;
int startline = buffer->line;
bool sharp_comment = false;
bool d_quoted = false;
bool s_quoted = false;
bool need_space = false;
bool last_space = true;
while (true) {
if ((ret = refill_buffer(buffer, d_quoted, s_quoted, startline, pstart)) != ERROR_SUCCESS) {
if (!args.empty() || !last_space) {
srs_error("line %d: unexpected end of file, expecting ; or \"}\"", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ret;
}
char ch = *buffer->pos++;
if (ch == LF) {
buffer->line++;
sharp_comment = false;
}
if (sharp_comment) {
continue;
}
if (need_space) {
if (is_common_space(ch)) {
last_space = true;
need_space = false;
continue;
}
if (ch == ';') {
return ERROR_SYSTEM_CONFIG_DIRECTIVE;
}
if (ch == '{') {
return ERROR_SYSTEM_CONFIG_BLOCK_START;
}
srs_error("line %d: unexpected '%c'", buffer->line, ch);
return ERROR_SYSTEM_CONFIG_INVALID;
}
// last charecter is space.
if (last_space) {
if (is_common_space(ch)) {
continue;
}
pstart = buffer->pos - 1;
startline = buffer->line;
switch (ch) {
case ';':
if (args.size() == 0) {
srs_error("line %d: unexpected ';'", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ERROR_SYSTEM_CONFIG_DIRECTIVE;
case '{':
if (args.size() == 0) {
srs_error("line %d: unexpected '{'", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ERROR_SYSTEM_CONFIG_BLOCK_START;
case '}':
if (args.size() != 0) {
srs_error("line %d: unexpected '}'", buffer->line);
return ERROR_SYSTEM_CONFIG_INVALID;
}
return ERROR_SYSTEM_CONFIG_BLOCK_END;
case '#':
sharp_comment = 1;
continue;
case '"':
pstart++;
d_quoted = true;
last_space = 0;
continue;
case '\'':
pstart++;
s_quoted = true;
last_space = 0;
continue;
default:
last_space = 0;
continue;
}
} else {
// last charecter is not space
bool found = false;
if (d_quoted) {
if (ch == '"') {
d_quoted = false;
need_space = true;
found = true;
}
} else if (s_quoted) {
if (ch == '\'') {
s_quoted = false;
need_space = true;
found = true;
}
} else if (is_common_space(ch) || ch == ';' || ch == '{') {
last_space = true;
found = 1;
}
if (found) {
int len = buffer->pos - pstart;
char* word = new char[len];
memcpy(word, pstart, len);
word[len - 1] = 0;
args.push_back(word);
srs_freepa(word);
if (ch == ';') {
return ERROR_SYSTEM_CONFIG_DIRECTIVE;
}
if (ch == '{') {
return ERROR_SYSTEM_CONFIG_BLOCK_START;
}
}
}
}
return ret;
}
int SrsConfDirective::refill_buffer(SrsFileBuffer* buffer, bool d_quoted, bool s_quoted, int startline, char*& pstart)
{
int ret = ERROR_SUCCESS;
if (buffer->pos < buffer->last) {
return ret;
}
int size = FILE_SIZE(buffer->fd) - FILE_OFFSET(buffer->fd);
if (size <= 0) {
return ERROR_SYSTEM_CONFIG_EOF;
}
int len = buffer->pos - buffer->start;
if (len >= CONF_BUFFER_SIZE) {
buffer->line = startline;
if (!d_quoted && !s_quoted) {
srs_error("line %d: too long parameter \"%*s...\" started",
buffer->line, 10, buffer->start);
} else {
srs_error("line %d: too long parameter, "
"probably missing terminating '%c' character", buffer->line, d_quoted? '"':'\'');
}
return ERROR_SYSTEM_CONFIG_INVALID;
}
if (len) {
memmove(buffer->start, pstart, len);
}
size = srs_min(size, buffer->end - (buffer->start + len));
int n = read(buffer->fd, buffer->start + len, size);
if (n != size) {
srs_error("read file read error. expect %d, actual %d bytes.", size, n);
return ERROR_SYSTEM_CONFIG_INVALID;
}
buffer->pos = buffer->start + len;
buffer->last = buffer->pos + n;
pstart = buffer->start;
return ret;
}
SrsConfig* config = new SrsConfig();
SrsConfig::SrsConfig()
{
show_help = false;
show_version = false;
root = new SrsConfDirective();
root->conf_line = 0;
root->name = "root";
}
SrsConfig::~SrsConfig()
{
srs_freep(root);
}
int SrsConfig::reload()
{
int ret = ERROR_SUCCESS;
SrsConfig conf;
if ((ret = conf.parse_file(config_file.c_str())) != ERROR_SUCCESS) {
srs_error("config reloader parse file failed. ret=%d", ret);
return ret;
}
srs_info("config reloader parse file success.");
// store current root to old_root,
// and reap the root from conf to current root.
SrsConfDirective* old_root = root;
SrsAutoFree(SrsConfDirective, old_root, false);
root = conf.root;
conf.root = NULL;
// merge config.
std::vector<SrsReloadHandler*>::iterator it;
// merge config: listen
if (!srs_directive_equals(root->get("listen"), old_root->get("listen"))) {
for (it = subscribes.begin(); it != subscribes.end(); ++it) {
SrsReloadHandler* subscribe = *it;
if ((ret = subscribe->on_reload_listen()) != ERROR_SUCCESS) {
srs_error("notify subscribes reload listen failed. ret=%d", ret);
return ret;
}
}
srs_trace("reload listen success.");
}
// merge config: pithy_print
if (!srs_directive_equals(root->get("pithy_print"), old_root->get("pithy_print"))) {
for (it = subscribes.begin(); it != subscribes.end(); ++it) {
SrsReloadHandler* subscribe = *it;
if ((ret = subscribe->on_reload_pithy_print()) != ERROR_SUCCESS) {
srs_error("notify subscribes pithy_print listen failed. ret=%d", ret);
return ret;
}
}
srs_trace("reload pithy_print success.");
}
return ret;
}
void SrsConfig::subscribe(SrsReloadHandler* handler)
{
std::vector<SrsReloadHandler*>::iterator it;
it = std::find(subscribes.begin(), subscribes.end(), handler);
if (it != subscribes.end()) {
return;
}
subscribes.push_back(handler);
}
void SrsConfig::unsubscribe(SrsReloadHandler* handler)
{
std::vector<SrsReloadHandler*>::iterator it;
it = std::find(subscribes.begin(), subscribes.end(), handler);
if (it == subscribes.end()) {
return;
}
subscribes.erase(it);
}
// see: ngx_get_options
int SrsConfig::parse_options(int argc, char** argv)
{
int ret = ERROR_SUCCESS;
for (int i = 1; i < argc; i++) {
if ((ret = parse_argv(i, argv)) != ERROR_SUCCESS) {
return ret;
}
}
if (show_help) {
print_help(argv);
}
if (show_version) {
printf("%s\n", RTMP_SIG_SRS_VERSION);
}
if (show_help || show_version) {
exit(0);
}
if (config_file.empty()) {
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("config file not specified, see help: %s -h, ret=%d", argv[0], ret);
return ret;
}
return parse_file(config_file.c_str());
}
SrsConfDirective* SrsConfig::get_vhost(std::string vhost)
{
srs_assert(root);
for (int i = 0; i < (int)root->directives.size(); i++) {
SrsConfDirective* conf = root->at(i);
if (conf->name != "vhost") {
continue;
}
if (conf->arg0() == vhost) {
return conf;
}
}
if (vhost != RTMP_VHOST_DEFAULT) {
return get_vhost(RTMP_VHOST_DEFAULT);
}
return NULL;
}
SrsConfDirective* SrsConfig::get_vhost_enabled(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("enabled");
}
SrsConfDirective* SrsConfig::get_gop_cache(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("gop_cache");
}
SrsConfDirective* SrsConfig::get_forward(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("forward");
}
SrsConfDirective* SrsConfig::get_hls(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls");
}
SrsConfDirective* SrsConfig::get_hls_path(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls_path");
}
SrsConfDirective* SrsConfig::get_hls_fragment(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls_fragment");
}
SrsConfDirective* SrsConfig::get_hls_window(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("hls_window");
}
SrsConfDirective* SrsConfig::get_refer(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("refer");
}
SrsConfDirective* SrsConfig::get_refer_play(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("refer_play");
}
SrsConfDirective* SrsConfig::get_refer_publish(std::string vhost)
{
SrsConfDirective* conf = get_vhost(vhost);
if (!conf) {
return NULL;
}
return conf->get("refer_publish");
}
SrsConfDirective* SrsConfig::get_listen()
{
return root->get("listen");
}
SrsConfDirective* SrsConfig::get_chunk_size()
{
return root->get("chunk_size");
}
SrsConfDirective* SrsConfig::get_pithy_print_publish()
{
SrsConfDirective* pithy = root->get("pithy_print");
if (!pithy) {
return NULL;
}
return pithy->get("publish");
}
SrsConfDirective* SrsConfig::get_pithy_print_forwarder()
{
SrsConfDirective* pithy = root->get("pithy_print");
if (!pithy) {
return NULL;
}
return pithy->get("forwarder");
}
SrsConfDirective* SrsConfig::get_pithy_print_play()
{
SrsConfDirective* pithy = root->get("pithy_print");
if (!pithy) {
return NULL;
}
return pithy->get("play");
}
int SrsConfig::parse_file(const char* filename)
{
int ret = ERROR_SUCCESS;
config_file = filename;
if (config_file.empty()) {
return ERROR_SYSTEM_CONFIG_INVALID;
}
if ((ret = root->parse(config_file.c_str())) != ERROR_SUCCESS) {
return ret;
}
SrsConfDirective* conf = NULL;
if ((conf = get_listen()) == NULL || conf->args.size() == 0) {
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("line %d: conf error, "
"directive \"listen\" is empty, ret=%d", (conf? conf->conf_line:0), ret);
return ret;
}
// TODO: check the hls.
// TODO: check other config.
// TODO: check hls.
// TODO: check ssl.
return ret;
}
int SrsConfig::parse_argv(int& i, char** argv)
{
int ret = ERROR_SUCCESS;
char* p = argv[i];
if (*p++ != '-') {
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("invalid options(index=%d, value=%s), "
"must starts with -, see help: %s -h, ret=%d", i, argv[i], argv[0], ret);
return ret;
}
while (*p) {
switch (*p++) {
case '?':
case 'h':
show_help = true;
break;
case 'v':
case 'V':
show_version = true;
break;
case 'c':
if (*p) {
config_file = p;
return ret;
}
if (argv[++i]) {
config_file = argv[i];
return ret;
}
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("option \"-c\" requires parameter, ret=%d", ret);
return ret;
default:
ret = ERROR_SYSTEM_CONFIG_INVALID;
srs_error("invalid option: \"%c\", see help: %s -h, ret=%d", *(p - 1), argv[0], ret);
return ret;
}
}
return ret;
}
void SrsConfig::print_help(char** argv)
{
printf(RTMP_SIG_SRS_NAME" "RTMP_SIG_SRS_VERSION
" Copyright (c) 2013 winlin\n"
"configuration: "SRS_CONFIGURE"\n"
"Usage: %s [-h?vV] [-c <filename>]\n"
"\n"
"Options:\n"
" -?-h : show help\n"
" -v-V : show version and exit\n"
" -c filename : set configuration file\n"
"\n"
RTMP_SIG_SRS_WEB"\n"
RTMP_SIG_SRS_URL"\n"
"Email: "RTMP_SIG_SRS_EMAIL"\n"
"\n",
argv[0]);
}
bool srs_directive_equals(SrsConfDirective* a, SrsConfDirective* b)
{
if (!a || !b) {
return false;
}
if (a->name != b->name) {
return false;
}
if (a->args.size() != b->args.size()) {
return false;
}
for (int i = 0; i < (int)a->args.size(); i++) {
if (a->args.at(i) != b->args.at(i)) {
return false;
}
}
if (a->directives.size() != b->directives.size()) {
return false;
}
for (int i = 0; i < (int)a->directives.size(); i++) {
SrsConfDirective* a0 = a->at(i);
SrsConfDirective* b0 = b->at(i);
if (!srs_directive_equals(a0, b0)) {
return false;
}
}
return true;
}
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_CORE_CONIFG_HPP
#define SRS_CORE_CONIFG_HPP
/*
#include <srs_core_config.hpp>
*/
#include <srs_core.hpp>
#include <vector>
#include <string>
#include <srs_core_reload.hpp>
// default vhost for rtmp
#define RTMP_VHOST_DEFAULT "__defaultVhost__"
#define SRS_CONF_DEFAULT_HLS_PATH "./objs/nginx/html"
#define SRS_CONF_DEFAULT_HLS_FRAGMENT 10
#define SRS_CONF_DEFAULT_HLS_WINDOW 60
// in ms, for HLS aac sync time.
#define SRS_CONF_DEFAULT_AAC_SYNC 100
// in ms, for HLS aac flush the audio
#define SRS_CONF_DEFAULT_AAC_DELAY 300
class SrsFileBuffer
{
public:
int fd;
int line;
// start of buffer.
char* start;
// end of buffer.
char* end;
// current consumed position.
char* pos;
// last available position.
char* last;
SrsFileBuffer();
virtual ~SrsFileBuffer();
virtual int open(const char* filename);
};
class SrsConfDirective
{
public:
int conf_line;
std::string name;
std::vector<std::string> args;
std::vector<SrsConfDirective*> directives;
public:
SrsConfDirective();
virtual ~SrsConfDirective();
std::string arg0();
std::string arg1();
std::string arg2();
SrsConfDirective* at(int index);
SrsConfDirective* get(std::string _name);
public:
virtual int parse(const char* filename);
public:
enum SrsDirectiveType{parse_file, parse_block};
virtual int parse_conf(SrsFileBuffer* buffer, SrsDirectiveType type);
virtual int read_token(SrsFileBuffer* buffer, std::vector<std::string>& args);
virtual int refill_buffer(SrsFileBuffer* buffer, bool d_quoted, bool s_quoted, int startline, char*& pstart);
};
/**
* the config parser.
* for the config supports reload, so never keep the reference cross st-thread,
* that is, never save the SrsConfDirective* get by any api of config,
* for it maybe free in the reload st-thread cycle.
* you can keep it before st-thread switch, or simply never keep it.
*/
class SrsConfig
{
private:
bool show_help;
bool show_version;
std::string config_file;
SrsConfDirective* root;
std::vector<SrsReloadHandler*> subscribes;
public:
SrsConfig();
virtual ~SrsConfig();
public:
virtual int reload();
virtual void subscribe(SrsReloadHandler* handler);
virtual void unsubscribe(SrsReloadHandler* handler);
public:
virtual int parse_options(int argc, char** argv);
virtual SrsConfDirective* get_vhost(std::string vhost);
virtual SrsConfDirective* get_vhost_enabled(std::string vhost);
virtual SrsConfDirective* get_gop_cache(std::string vhost);
virtual SrsConfDirective* get_forward(std::string vhost);
virtual SrsConfDirective* get_hls(std::string vhost);
virtual SrsConfDirective* get_hls_path(std::string vhost);
virtual SrsConfDirective* get_hls_fragment(std::string vhost);
virtual SrsConfDirective* get_hls_window(std::string vhost);
virtual SrsConfDirective* get_refer(std::string vhost);
virtual SrsConfDirective* get_refer_play(std::string vhost);
virtual SrsConfDirective* get_refer_publish(std::string vhost);
virtual SrsConfDirective* get_listen();
virtual SrsConfDirective* get_chunk_size();
virtual SrsConfDirective* get_pithy_print_publish();
virtual SrsConfDirective* get_pithy_print_play();
private:
virtual int parse_file(const char* filename);
virtual int parse_argv(int& i, char** argv);
virtual void print_help(char** argv);
};
/**
* deep compare directive.
*/
bool srs_directive_equals(SrsConfDirective* a, SrsConfDirective* b);
// global config
extern SrsConfig* config;
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_CORE_CONIFG_HPP
#define SRS_CORE_CONIFG_HPP
/*
#include <srs_core_config.hpp>
*/
#include <srs_core.hpp>
#include <vector>
#include <string>
#include <srs_core_reload.hpp>
// default vhost for rtmp
#define RTMP_VHOST_DEFAULT "__defaultVhost__"
#define SRS_CONF_DEFAULT_HLS_PATH "./objs/nginx/html"
#define SRS_CONF_DEFAULT_HLS_FRAGMENT 10
#define SRS_CONF_DEFAULT_HLS_WINDOW 60
// in ms, for HLS aac sync time.
#define SRS_CONF_DEFAULT_AAC_SYNC 100
// in ms, for HLS aac flush the audio
#define SRS_CONF_DEFAULT_AAC_DELAY 300
class SrsFileBuffer
{
public:
int fd;
int line;
// start of buffer.
char* start;
// end of buffer.
char* end;
// current consumed position.
char* pos;
// last available position.
char* last;
SrsFileBuffer();
virtual ~SrsFileBuffer();
virtual int open(const char* filename);
};
class SrsConfDirective
{
public:
int conf_line;
std::string name;
std::vector<std::string> args;
std::vector<SrsConfDirective*> directives;
public:
SrsConfDirective();
virtual ~SrsConfDirective();
std::string arg0();
std::string arg1();
std::string arg2();
SrsConfDirective* at(int index);
SrsConfDirective* get(std::string _name);
public:
virtual int parse(const char* filename);
public:
enum SrsDirectiveType{parse_file, parse_block};
virtual int parse_conf(SrsFileBuffer* buffer, SrsDirectiveType type);
virtual int read_token(SrsFileBuffer* buffer, std::vector<std::string>& args);
virtual int refill_buffer(SrsFileBuffer* buffer, bool d_quoted, bool s_quoted, int startline, char*& pstart);
};
/**
* the config parser.
* for the config supports reload, so never keep the reference cross st-thread,
* that is, never save the SrsConfDirective* get by any api of config,
* for it maybe free in the reload st-thread cycle.
* you can keep it before st-thread switch, or simply never keep it.
*/
class SrsConfig
{
private:
bool show_help;
bool show_version;
std::string config_file;
SrsConfDirective* root;
std::vector<SrsReloadHandler*> subscribes;
public:
SrsConfig();
virtual ~SrsConfig();
public:
virtual int reload();
virtual void subscribe(SrsReloadHandler* handler);
virtual void unsubscribe(SrsReloadHandler* handler);
public:
virtual int parse_options(int argc, char** argv);
virtual SrsConfDirective* get_vhost(std::string vhost);
virtual SrsConfDirective* get_vhost_enabled(std::string vhost);
virtual SrsConfDirective* get_gop_cache(std::string vhost);
virtual SrsConfDirective* get_forward(std::string vhost);
virtual SrsConfDirective* get_hls(std::string vhost);
virtual SrsConfDirective* get_hls_path(std::string vhost);
virtual SrsConfDirective* get_hls_fragment(std::string vhost);
virtual SrsConfDirective* get_hls_window(std::string vhost);
virtual SrsConfDirective* get_refer(std::string vhost);
virtual SrsConfDirective* get_refer_play(std::string vhost);
virtual SrsConfDirective* get_refer_publish(std::string vhost);
virtual SrsConfDirective* get_listen();
virtual SrsConfDirective* get_chunk_size();
virtual SrsConfDirective* get_pithy_print_publish();
virtual SrsConfDirective* get_pithy_print_forwarder();
virtual SrsConfDirective* get_pithy_print_play();
private:
virtual int parse_file(const char* filename);
virtual int parse_argv(int& i, char** argv);
virtual void print_help(char** argv);
};
/**
* deep compare directive.
*/
bool srs_directive_equals(SrsConfDirective* a, SrsConfDirective* b);
// global config
extern SrsConfig* config;
#endif
\ No newline at end of file
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_forward.hpp>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <srs_core_error.hpp>
#include <srs_core_rtmp.hpp>
#include <srs_core_log.hpp>
#define SRS_FORWARDER_SLEEP_MS 2000
#define SRS_SEND_TIMEOUT_US 3000000L
#define SRS_RECV_TIMEOUT_US SRS_SEND_TIMEOUT_US
SrsForwarder::SrsForwarder()
{
client = NULL;
tid = NULL;
stfd = NULL;
loop = false;
stream_id = 0;
}
SrsForwarder::~SrsForwarder()
{
on_unpublish();
}
int SrsForwarder::on_publish(std::string vhost, std::string _app, std::string stream, std::string forward_server)
{
int ret = ERROR_SUCCESS;
app = _app;
tc_url = "rtmp://";
tc_url += vhost;
tc_url += "/";
tc_url += app;
stream_name = stream;
server = forward_server;
port = 1935;
size_t pos = forward_server.find(":");
if (pos != std::string::npos) {
port = ::atoi(forward_server.substr(pos + 1).c_str());
server = forward_server.substr(0, pos);
}
if ((ret = open_socket()) != ERROR_SUCCESS) {
return ret;
}
srs_assert(!tid);
if((tid = st_thread_create(forward_thread, this, 1, 0)) == NULL){
ret = ERROR_ST_CREATE_FORWARD_THREAD;
srs_error("st_thread_create failed. ret=%d", ret);
return ret;
}
return ret;
}
void SrsForwarder::on_unpublish()
{
if (tid) {
loop = false;
st_thread_interrupt(tid);
st_thread_join(tid, NULL);
tid = NULL;
}
if (stfd) {
int fd = st_netfd_fileno(stfd);
st_netfd_close(stfd);
stfd = NULL;
// st does not close it sometimes,
// close it manually.
close(fd);
}
srs_freep(client);
}
int SrsForwarder::on_meta_data(SrsSharedPtrMessage* metadata)
{
int ret = ERROR_SUCCESS;
return ret;
}
int SrsForwarder::on_audio(SrsSharedPtrMessage* msg)
{
int ret = ERROR_SUCCESS;
return ret;
}
int SrsForwarder::on_video(SrsSharedPtrMessage* msg)
{
int ret = ERROR_SUCCESS;
return ret;
}
int SrsForwarder::open_socket()
{
int ret = ERROR_SUCCESS;
srs_trace("forward stream=%s, tcUrl=%s to server=%s, port=%d",
stream_name.c_str(), tc_url.c_str(), server.c_str(), port);
int sock = socket(AF_INET, SOCK_STREAM, 0);
if(sock == -1){
ret = ERROR_SOCKET_CREATE;
srs_error("create socket error. ret=%d", ret);
return ret;
}
stfd = st_netfd_open_socket(sock);
if(stfd == NULL){
ret = ERROR_ST_OPEN_SOCKET;
srs_error("st_netfd_open_socket failed. ret=%d", ret);
return ret;
}
srs_freep(client);
client = new SrsRtmpClient(stfd);
return ret;
}
int SrsForwarder::connect_server()
{
int ret = ERROR_SUCCESS;
std::string ip = parse_server(server);
if (ip.empty()) {
ret = ERROR_SYSTEM_IP_INVALID;
srs_error("dns resolve server error, ip empty. ret=%d", ret);
return ret;
}
sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = inet_addr(ip.c_str());
if (st_connect(stfd, (const struct sockaddr*)&addr, sizeof(sockaddr_in), ST_UTIME_NO_TIMEOUT) == -1){
ret = ERROR_ST_CONNECT;
srs_error("connect to server error. ip=%s, port=%d, ret=%d", ip.c_str(), port, ret);
return ret;
}
srs_trace("connect to server success. server=%s, ip=%s, port=%d", server.c_str(), ip.c_str(), port);
return ret;
}
std::string SrsForwarder::parse_server(std::string host)
{
if (inet_addr(host.c_str()) != INADDR_NONE) {
return host;
}
hostent* answer = gethostbyname(host.c_str());
if (answer == NULL) {
srs_error("dns resolve host %s error.", host.c_str());
return "";
}
char ipv4[16];
memset(ipv4, 0, sizeof(ipv4));
for (int i = 0; i < answer->h_length; i++) {
inet_ntop(AF_INET, answer->h_addr_list[i], ipv4, sizeof(ipv4));
srs_info("dns resolve host %s to %s.", host.c_str(), ipv4);
break;
}
return ipv4;
}
int SrsForwarder::forward_cycle_imp()
{
int ret = ERROR_SUCCESS;
client->set_recv_timeout(SRS_RECV_TIMEOUT_US);
client->set_send_timeout(SRS_SEND_TIMEOUT_US);
if ((ret = connect_server()) != ERROR_SUCCESS) {
return ret;
}
srs_assert(client);
if ((ret = client->handshake()) != ERROR_SUCCESS) {
srs_error("handshake with server failed. ret=%d", ret);
return ret;
}
if ((ret = client->connect_app(app, tc_url)) != ERROR_SUCCESS) {
srs_error("connect with server failed, tcUrl=%s. ret=%d", tc_url.c_str(), ret);
return ret;
}
if ((ret = client->create_stream(stream_id)) != ERROR_SUCCESS) {
srs_error("connect with server failed, stream_id=%d. ret=%d", stream_id, ret);
return ret;
}
if ((ret = client->publish(stream_name, stream_id)) != ERROR_SUCCESS) {
srs_error("connect with server failed, stream_name=%s, stream_id=%d. ret=%d",
stream_name.c_str(), stream_id, ret);
return ret;
}
return ret;
}
void SrsForwarder::forward_cycle()
{
int ret = ERROR_SUCCESS;
log_context->generate_id();
srs_trace("forward cycle start");
while (loop) {
if ((ret = forward_cycle_imp()) != ERROR_SUCCESS) {
srs_warn("forward cycle failed, ignored and retry, ret=%d", ret);
} else {
srs_info("forward cycle success, retry");
}
if (!loop) {
break;
}
st_usleep(SRS_FORWARDER_SLEEP_MS * 1000);
if ((ret = open_socket()) != ERROR_SUCCESS) {
srs_warn("forward cycle reopen failed, ignored and retry, ret=%d", ret);
} else {
srs_info("forward cycle reopen success");
}
}
srs_trace("forward cycle finished");
}
void* SrsForwarder::forward_thread(void* arg)
{
SrsForwarder* obj = (SrsForwarder*)arg;
srs_assert(obj != NULL);
obj->loop = true;
obj->forward_cycle();
return NULL;
}
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_forward.hpp>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <srs_core_error.hpp>
#include <srs_core_rtmp.hpp>
#include <srs_core_log.hpp>
#include <srs_core_protocol.hpp>
#include <srs_core_pithy_print.hpp>
#define SRS_PULSE_TIMEOUT_MS 100
#define SRS_FORWARDER_SLEEP_MS 2000
#define SRS_SEND_TIMEOUT_US 3000000L
#define SRS_RECV_TIMEOUT_US SRS_SEND_TIMEOUT_US
SrsForwarder::SrsForwarder()
{
client = NULL;
tid = NULL;
stfd = NULL;
loop = false;
stream_id = 0;
}
SrsForwarder::~SrsForwarder()
{
on_unpublish();
std::vector<SrsSharedPtrMessage*>::iterator it;
for (it = msgs.begin(); it != msgs.end(); ++it) {
SrsSharedPtrMessage* msg = *it;
srs_freep(msg);
}
msgs.clear();
}
int SrsForwarder::on_publish(std::string vhost, std::string _app, std::string stream, std::string forward_server)
{
int ret = ERROR_SUCCESS;
app = _app;
tc_url = "rtmp://";
tc_url += vhost;
tc_url += "/";
tc_url += app;
stream_name = stream;
server = forward_server;
port = 1935;
size_t pos = forward_server.find(":");
if (pos != std::string::npos) {
port = ::atoi(forward_server.substr(pos + 1).c_str());
server = forward_server.substr(0, pos);
}
if ((ret = open_socket()) != ERROR_SUCCESS) {
return ret;
}
srs_assert(!tid);
if((tid = st_thread_create(forward_thread, this, 1, 0)) == NULL){
ret = ERROR_ST_CREATE_FORWARD_THREAD;
srs_error("st_thread_create failed. ret=%d", ret);
return ret;
}
return ret;
}
void SrsForwarder::on_unpublish()
{
if (tid) {
loop = false;
st_thread_interrupt(tid);
st_thread_join(tid, NULL);
tid = NULL;
}
if (stfd) {
int fd = st_netfd_fileno(stfd);
st_netfd_close(stfd);
stfd = NULL;
// st does not close it sometimes,
// close it manually.
close(fd);
}
srs_freep(client);
}
int SrsForwarder::on_meta_data(SrsSharedPtrMessage* metadata)
{
int ret = ERROR_SUCCESS;
msgs.push_back(metadata);
return ret;
}
int SrsForwarder::on_audio(SrsSharedPtrMessage* msg)
{
int ret = ERROR_SUCCESS;
msgs.push_back(msg);
return ret;
}
int SrsForwarder::on_video(SrsSharedPtrMessage* msg)
{
int ret = ERROR_SUCCESS;
msgs.push_back(msg);
return ret;
}
int SrsForwarder::open_socket()
{
int ret = ERROR_SUCCESS;
srs_trace("forward stream=%s, tcUrl=%s to server=%s, port=%d",
stream_name.c_str(), tc_url.c_str(), server.c_str(), port);
int sock = socket(AF_INET, SOCK_STREAM, 0);
if(sock == -1){
ret = ERROR_SOCKET_CREATE;
srs_error("create socket error. ret=%d", ret);
return ret;
}
stfd = st_netfd_open_socket(sock);
if(stfd == NULL){
ret = ERROR_ST_OPEN_SOCKET;
srs_error("st_netfd_open_socket failed. ret=%d", ret);
return ret;
}
srs_freep(client);
client = new SrsRtmpClient(stfd);
return ret;
}
int SrsForwarder::connect_server()
{
int ret = ERROR_SUCCESS;
std::string ip = parse_server(server);
if (ip.empty()) {
ret = ERROR_SYSTEM_IP_INVALID;
srs_error("dns resolve server error, ip empty. ret=%d", ret);
return ret;
}
sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = inet_addr(ip.c_str());
if (st_connect(stfd, (const struct sockaddr*)&addr, sizeof(sockaddr_in), ST_UTIME_NO_TIMEOUT) == -1){
ret = ERROR_ST_CONNECT;
srs_error("connect to server error. ip=%s, port=%d, ret=%d", ip.c_str(), port, ret);
return ret;
}
srs_trace("connect to server success. server=%s, ip=%s, port=%d", server.c_str(), ip.c_str(), port);
return ret;
}
std::string SrsForwarder::parse_server(std::string host)
{
if (inet_addr(host.c_str()) != INADDR_NONE) {
return host;
}
hostent* answer = gethostbyname(host.c_str());
if (answer == NULL) {
srs_error("dns resolve host %s error.", host.c_str());
return "";
}
char ipv4[16];
memset(ipv4, 0, sizeof(ipv4));
for (int i = 0; i < answer->h_length; i++) {
inet_ntop(AF_INET, answer->h_addr_list[i], ipv4, sizeof(ipv4));
srs_info("dns resolve host %s to %s.", host.c_str(), ipv4);
break;
}
return ipv4;
}
int SrsForwarder::forward_cycle_imp()
{
int ret = ERROR_SUCCESS;
client->set_recv_timeout(SRS_RECV_TIMEOUT_US);
client->set_send_timeout(SRS_SEND_TIMEOUT_US);
if ((ret = connect_server()) != ERROR_SUCCESS) {
return ret;
}
srs_assert(client);
if ((ret = client->handshake()) != ERROR_SUCCESS) {
srs_error("handshake with server failed. ret=%d", ret);
return ret;
}
if ((ret = client->connect_app(app, tc_url)) != ERROR_SUCCESS) {
srs_error("connect with server failed, tcUrl=%s. ret=%d", tc_url.c_str(), ret);
return ret;
}
if ((ret = client->create_stream(stream_id)) != ERROR_SUCCESS) {
srs_error("connect with server failed, stream_id=%d. ret=%d", stream_id, ret);
return ret;
}
if ((ret = client->publish(stream_name, stream_id)) != ERROR_SUCCESS) {
srs_error("connect with server failed, stream_name=%s, stream_id=%d. ret=%d",
stream_name.c_str(), stream_id, ret);
return ret;
}
if ((ret = forward()) != ERROR_SUCCESS) {
return ret;
}
return ret;
}
int SrsForwarder::forward()
{
int ret = ERROR_SUCCESS;
client->set_recv_timeout(SRS_PULSE_TIMEOUT_MS * 1000);
SrsPithyPrint pithy_print(SRS_STAGE_FORWARDER);
while (loop) {
pithy_print.elapse(SRS_PULSE_TIMEOUT_MS);
// switch to other st-threads.
st_usleep(0);
// read from client.
if (true) {
SrsCommonMessage* msg = NULL;
ret = client->recv_message(&msg);
srs_verbose("play loop recv message. ret=%d", ret);
if (ret != ERROR_SUCCESS && ret != ERROR_SOCKET_TIMEOUT) {
srs_error("recv server control message failed. ret=%d", ret);
return ret;
}
}
int count = (int)msgs.size();
// reportable
if (pithy_print.can_print()) {
srs_trace("-> clock=%u, time=%"PRId64", msgs=%d, obytes=%"PRId64", ibytes=%"PRId64", okbps=%d, ikbps=%d",
(int)(srs_get_system_time_ms()/1000), pithy_print.get_age(), count, client->get_send_bytes(), client->get_recv_bytes(), client->get_send_kbps(), client->get_recv_kbps());
}
// all msgs to forward.
for (int i = 0; i < count; i++) {
SrsSharedPtrMessage* msg = msgs[i];
msgs[i] = NULL;
if ((ret = client->send_message(msg)) != ERROR_SUCCESS) {
srs_error("forwarder send message to server failed. ret=%d", ret);
return ret;
}
}
msgs.clear();
}
return ret;
}
void SrsForwarder::forward_cycle()
{
int ret = ERROR_SUCCESS;
log_context->generate_id();
srs_trace("forward cycle start");
while (loop) {
if ((ret = forward_cycle_imp()) != ERROR_SUCCESS) {
srs_warn("forward cycle failed, ignored and retry, ret=%d", ret);
} else {
srs_info("forward cycle success, retry");
}
if (!loop) {
break;
}
st_usleep(SRS_FORWARDER_SLEEP_MS * 1000);
if ((ret = open_socket()) != ERROR_SUCCESS) {
srs_warn("forward cycle reopen failed, ignored and retry, ret=%d", ret);
} else {
srs_info("forward cycle reopen success");
}
}
srs_trace("forward cycle finished");
}
void* SrsForwarder::forward_thread(void* arg)
{
SrsForwarder* obj = (SrsForwarder*)arg;
srs_assert(obj != NULL);
obj->loop = true;
obj->forward_cycle();
return NULL;
}
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_CORE_FORWARD_HPP
#define SRS_CORE_FORWARD_HPP
/*
#include <srs_core_forward.hpp>
*/
#include <srs_core.hpp>
#include <string>
#include <st.h>
class SrsSharedPtrMessage;
class SrsOnMetaDataPacket;
class SrsRtmpClient;
/**
* forward the stream to other servers.
*/
class SrsForwarder
{
private:
std::string app;
std::string tc_url;
std::string stream_name;
int stream_id;
std::string server;
int port;
private:
st_netfd_t stfd;
st_thread_t tid;
bool loop;
private:
SrsRtmpClient* client;
public:
SrsForwarder();
virtual ~SrsForwarder();
public:
virtual int on_publish(std::string vhost, std::string app, std::string stream, std::string forward_server);
virtual void on_unpublish();
virtual int on_meta_data(SrsSharedPtrMessage* metadata);
virtual int on_audio(SrsSharedPtrMessage* msg);
virtual int on_video(SrsSharedPtrMessage* msg);
private:
virtual int open_socket();
virtual int connect_server();
std::string parse_server(std::string host);
private:
virtual int forward_cycle_imp();
virtual void forward_cycle();
static void* forward_thread(void* arg);
};
#endif
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_CORE_FORWARD_HPP
#define SRS_CORE_FORWARD_HPP
/*
#include <srs_core_forward.hpp>
*/
#include <srs_core.hpp>
#include <string>
#include <vector>
#include <st.h>
class SrsSharedPtrMessage;
class SrsOnMetaDataPacket;
class SrsRtmpClient;
/**
* forward the stream to other servers.
*/
class SrsForwarder
{
private:
std::string app;
std::string tc_url;
std::string stream_name;
int stream_id;
std::string server;
int port;
private:
st_netfd_t stfd;
st_thread_t tid;
bool loop;
private:
SrsRtmpClient* client;
std::vector<SrsSharedPtrMessage*> msgs;
public:
SrsForwarder();
virtual ~SrsForwarder();
public:
virtual int on_publish(std::string vhost, std::string app, std::string stream, std::string forward_server);
virtual void on_unpublish();
virtual int on_meta_data(SrsSharedPtrMessage* metadata);
virtual int on_audio(SrsSharedPtrMessage* msg);
virtual int on_video(SrsSharedPtrMessage* msg);
private:
virtual int open_socket();
virtual int connect_server();
std::string parse_server(std::string host);
private:
virtual int forward_cycle_imp();
virtual int forward();
virtual void forward_cycle();
static void* forward_thread(void* arg);
};
#endif
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_pithy_print.hpp>
#include <stdlib.h>
#include <map>
#include <srs_core_log.hpp>
#include <srs_core_config.hpp>
#include <srs_core_reload.hpp>
#include <srs_core_error.hpp>
#define SRS_STAGE_DEFAULT_INTERVAL_MS 1200
#define SRS_STAGE_PLAY_USER_INTERVAL_MS 1300
#define SRS_STAGE_PUBLISH_USER_INTERVAL_MS 1100
struct SrsStageInfo : public SrsReloadHandler
{
int stage_id;
int pithy_print_time_ms;
int nb_clients;
SrsStageInfo(int _stage_id)
{
stage_id = _stage_id;
nb_clients = 0;
update_print_time();
config->subscribe(this);
}
virtual ~SrsStageInfo()
{
config->unsubscribe(this);
}
void update_print_time()
{
switch (stage_id) {
case SRS_STAGE_PLAY_USER: {
pithy_print_time_ms = SRS_STAGE_PLAY_USER_INTERVAL_MS;
SrsConfDirective* conf = config->get_pithy_print_play();
if (conf && !conf->arg0().empty()) {
pithy_print_time_ms = ::atoi(conf->arg0().c_str());
}
break;
}
case SRS_STAGE_PUBLISH_USER: {
pithy_print_time_ms = SRS_STAGE_PUBLISH_USER_INTERVAL_MS;
SrsConfDirective* conf = config->get_pithy_print_publish();
if (conf && !conf->arg0().empty()) {
pithy_print_time_ms = ::atoi(conf->arg0().c_str());
}
break;
}
default: {
pithy_print_time_ms = SRS_STAGE_DEFAULT_INTERVAL_MS;
break;
}
}
}
public:
virtual int on_reload_pithy_print()
{
update_print_time();
return ERROR_SUCCESS;
}
};
static std::map<int, SrsStageInfo*> _srs_stages;
SrsPithyPrint::SrsPithyPrint(int _stage_id)
{
stage_id = _stage_id;
client_id = enter_stage();
printed_age = age = 0;
}
SrsPithyPrint::~SrsPithyPrint()
{
leave_stage();
}
int SrsPithyPrint::enter_stage()
{
SrsStageInfo* stage = NULL;
std::map<int, SrsStageInfo*>::iterator it = _srs_stages.find(stage_id);
if (it == _srs_stages.end()) {
stage = _srs_stages[stage_id] = new SrsStageInfo(stage_id);
} else {
stage = it->second;
}
srs_assert(stage != NULL);
client_id = stage->nb_clients++;
srs_verbose("enter stage, stage_id=%d, client_id=%d, nb_clients=%d, time_ms=%d",
stage->stage_id, client_id, stage->nb_clients, stage->pithy_print_time_ms);
return client_id;
}
void SrsPithyPrint::leave_stage()
{
SrsStageInfo* stage = _srs_stages[stage_id];
srs_assert(stage != NULL);
stage->nb_clients--;
srs_verbose("leave stage, stage_id=%d, client_id=%d, nb_clients=%d, time_ms=%d",
stage->stage_id, client_id, stage->nb_clients, stage->pithy_print_time_ms);
}
void SrsPithyPrint::elapse(int64_t time_ms)
{
age += time_ms;
}
bool SrsPithyPrint::can_print()
{
SrsStageInfo* stage = _srs_stages[stage_id];
srs_assert(stage != NULL);
int64_t alive_age = age - printed_age;
int64_t can_print_age = stage->nb_clients * stage->pithy_print_time_ms;
bool can_print = alive_age >= can_print_age;
if (can_print) {
printed_age = age;
}
return can_print;
}
int64_t SrsPithyPrint::get_age()
{
return age;
}
void SrsPithyPrint::set_age(int64_t _age)
{
age = _age;
}
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <srs_core_pithy_print.hpp>
#include <stdlib.h>
#include <map>
#include <srs_core_log.hpp>
#include <srs_core_config.hpp>
#include <srs_core_reload.hpp>
#include <srs_core_error.hpp>
#define SRS_STAGE_DEFAULT_INTERVAL_MS 1200
#define SRS_STAGE_PLAY_USER_INTERVAL_MS 1300
#define SRS_STAGE_PUBLISH_USER_INTERVAL_MS 1100
#define SRS_STAGE_FORWARDER_INTERVAL_MS 2000
struct SrsStageInfo : public SrsReloadHandler
{
int stage_id;
int pithy_print_time_ms;
int nb_clients;
SrsStageInfo(int _stage_id)
{
stage_id = _stage_id;
nb_clients = 0;
update_print_time();
config->subscribe(this);
}
virtual ~SrsStageInfo()
{
config->unsubscribe(this);
}
void update_print_time()
{
switch (stage_id) {
case SRS_STAGE_PLAY_USER: {
pithy_print_time_ms = SRS_STAGE_PLAY_USER_INTERVAL_MS;
SrsConfDirective* conf = config->get_pithy_print_play();
if (conf && !conf->arg0().empty()) {
pithy_print_time_ms = ::atoi(conf->arg0().c_str());
}
break;
}
case SRS_STAGE_PUBLISH_USER: {
pithy_print_time_ms = SRS_STAGE_PUBLISH_USER_INTERVAL_MS;
SrsConfDirective* conf = config->get_pithy_print_publish();
if (conf && !conf->arg0().empty()) {
pithy_print_time_ms = ::atoi(conf->arg0().c_str());
}
break;
}
case SRS_STAGE_FORWARDER: {
pithy_print_time_ms = SRS_STAGE_FORWARDER_INTERVAL_MS;
SrsConfDirective* conf = config->get_pithy_print_forwarder();
if (conf && !conf->arg0().empty()) {
pithy_print_time_ms = ::atoi(conf->arg0().c_str());
}
break;
}
default: {
pithy_print_time_ms = SRS_STAGE_DEFAULT_INTERVAL_MS;
break;
}
}
}
public:
virtual int on_reload_pithy_print()
{
update_print_time();
return ERROR_SUCCESS;
}
};
static std::map<int, SrsStageInfo*> _srs_stages;
SrsPithyPrint::SrsPithyPrint(int _stage_id)
{
stage_id = _stage_id;
client_id = enter_stage();
printed_age = age = 0;
}
SrsPithyPrint::~SrsPithyPrint()
{
leave_stage();
}
int SrsPithyPrint::enter_stage()
{
SrsStageInfo* stage = NULL;
std::map<int, SrsStageInfo*>::iterator it = _srs_stages.find(stage_id);
if (it == _srs_stages.end()) {
stage = _srs_stages[stage_id] = new SrsStageInfo(stage_id);
} else {
stage = it->second;
}
srs_assert(stage != NULL);
client_id = stage->nb_clients++;
srs_verbose("enter stage, stage_id=%d, client_id=%d, nb_clients=%d, time_ms=%d",
stage->stage_id, client_id, stage->nb_clients, stage->pithy_print_time_ms);
return client_id;
}
void SrsPithyPrint::leave_stage()
{
SrsStageInfo* stage = _srs_stages[stage_id];
srs_assert(stage != NULL);
stage->nb_clients--;
srs_verbose("leave stage, stage_id=%d, client_id=%d, nb_clients=%d, time_ms=%d",
stage->stage_id, client_id, stage->nb_clients, stage->pithy_print_time_ms);
}
void SrsPithyPrint::elapse(int64_t time_ms)
{
age += time_ms;
}
bool SrsPithyPrint::can_print()
{
SrsStageInfo* stage = _srs_stages[stage_id];
srs_assert(stage != NULL);
int64_t alive_age = age - printed_age;
int64_t can_print_age = stage->nb_clients * stage->pithy_print_time_ms;
bool can_print = alive_age >= can_print_age;
if (can_print) {
printed_age = age;
}
return can_print;
}
int64_t SrsPithyPrint::get_age()
{
return age;
}
void SrsPithyPrint::set_age(int64_t _age)
{
age = _age;
}
... ...
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_CORE_PITHY_PRINT_HPP
#define SRS_CORE_PITHY_PRINT_HPP
/*
#include <srs_core_pithy_print.hpp>
*/
#include <srs_core.hpp>
// the pithy stage for all play clients.
#define SRS_STAGE_PLAY_USER 1
// the pithy stage for all publish clients.
#define SRS_STAGE_PUBLISH_USER 2
/**
* the stage is used for a collection of object to do print,
* the print time in a stage is constant and not changed.
* for example, stage #1 for all play clients, print time is 3s,
* if there is 10clients, then all clients should print in 10*3s.
*/
class SrsPithyPrint
{
private:
int client_id;
int stage_id;
int64_t age;
int64_t printed_age;
public:
/**
* @param _stage_id defined in SRS_STAGE_xxx, eg. SRS_STAGE_PLAY_USER.
*/
SrsPithyPrint(int _stage_id);
virtual ~SrsPithyPrint();
private:
/**
* enter the specified stage, return the client id.
*/
virtual int enter_stage();
/**
* leave the specified stage, release the client id.
*/
virtual void leave_stage();
public:
/**
* specified client elapse some time.
*/
virtual void elapse(int64_t time_ms);
/**
* whether current client can print.
*/
virtual bool can_print();
/**
* get the elapsed time in ms.
*/
virtual int64_t get_age();
virtual void set_age(int64_t _age);
};
/*
The MIT License (MIT)
Copyright (c) 2013 winlin
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_CORE_PITHY_PRINT_HPP
#define SRS_CORE_PITHY_PRINT_HPP
/*
#include <srs_core_pithy_print.hpp>
*/
#include <srs_core.hpp>
// the pithy stage for all play clients.
#define SRS_STAGE_PLAY_USER 1
// the pithy stage for all publish clients.
#define SRS_STAGE_PUBLISH_USER 2
// the pithy stage for all forward clients.
#define SRS_STAGE_FORWARDER 3
/**
* the stage is used for a collection of object to do print,
* the print time in a stage is constant and not changed.
* for example, stage #1 for all play clients, print time is 3s,
* if there is 10clients, then all clients should print in 10*3s.
*/
class SrsPithyPrint
{
private:
int client_id;
int stage_id;
int64_t age;
int64_t printed_age;
public:
/**
* @param _stage_id defined in SRS_STAGE_xxx, eg. SRS_STAGE_PLAY_USER.
*/
SrsPithyPrint(int _stage_id);
virtual ~SrsPithyPrint();
private:
/**
* enter the specified stage, return the client id.
*/
virtual int enter_stage();
/**
* leave the specified stage, release the client id.
*/
virtual void leave_stage();
public:
/**
* specified client elapse some time.
*/
virtual void elapse(int64_t time_ms);
/**
* whether current client can print.
*/
virtual bool can_print();
/**
* get the elapsed time in ms.
*/
virtual int64_t get_age();
virtual void set_age(int64_t _age);
};
#endif
\ No newline at end of file
... ...