refine code, use global virtual id to generate the id of vhost and stream.

@@ -529,6 +529,7 @@ int SrsApiVhosts::do_process_request(SrsStSocket* skt, SrsHttpMessage* req)
     
     ss << __SRS_JOBJECT_START
         << __SRS_JFIELD_ERROR(ret) << __SRS_JFIELD_CONT
+        << __SRS_JFIELD_ORG("server", stat->server_id()) << __SRS_JFIELD_CONT
         << __SRS_JFIELD_ORG("vhosts", __SRS_JARRAY_START)
             << data.str()
         << __SRS_JARRAY_END
@@ -560,6 +561,7 @@ int SrsApiStreams::do_process_request(SrsStSocket* skt, SrsHttpMessage* req)
     
     ss << __SRS_JOBJECT_START
         << __SRS_JFIELD_ERROR(ret) << __SRS_JFIELD_CONT
+        << __SRS_JFIELD_ORG("server", stat->server_id()) << __SRS_JFIELD_CONT
         << __SRS_JFIELD_ORG("streams", __SRS_JARRAY_START)
             << data.str()
         << __SRS_JARRAY_END

@@ -23,16 +23,44 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_app_statistic.hpp>
 
+#include <unistd.h>
 #include <sstream>
 using namespace std;
 
 #include <srs_protocol_rtmp.hpp>
 #include <srs_app_json.hpp>
 
+int64_t __srs_gvid = getpid();
+
+int64_t __srs_generate_id()
+{
+    return __srs_gvid++;
+}
+
+SrsStatisticVhost::SrsStatisticVhost()
+{
+    id = __srs_generate_id();
+}
+
+SrsStatisticVhost::~SrsStatisticVhost()
+{
+}
+
+SrsStatisticStream::SrsStatisticStream()
+{
+    id = __srs_generate_id();
+    vhost = NULL;
+}
+
+SrsStatisticStream::~SrsStatisticStream()
+{
+}
+
 SrsStatistic* SrsStatistic::_instance = new SrsStatistic();
 
 SrsStatistic::SrsStatistic()
 {
+    _server_id = __srs_generate_id();
 }
 
 SrsStatistic::~SrsStatistic()
@@ -87,7 +115,8 @@ int SrsStatistic::on_client(int id, SrsRequest* req)
     if (streams.find(url) == streams.end()) {
         stream = new SrsStatisticStream();
         stream->vhost = vhost;
-        stream->stream = url;
+        stream->stream = req->stream;
+        stream->url = url;
         streams[url] = stream;
     } else {
         stream = streams[url];
@@ -96,6 +125,11 @@ int SrsStatistic::on_client(int id, SrsRequest* req)
     return ret;
 }
 
+int64_t SrsStatistic::server_id()
+{
+    return _server_id;
+}
+
 int SrsStatistic::dumps_vhosts(stringstream& ss)
 {
     int ret = ERROR_SUCCESS;
@@ -104,6 +138,7 @@ int SrsStatistic::dumps_vhosts(stringstream& ss)
     for (it = vhosts.begin(); it != vhosts.end(); it++) {
         SrsStatisticVhost* vhost = it->second;
         ss << __SRS_JOBJECT_START
+                << __SRS_JFIELD_ORG("id", vhost->id) << __SRS_JFIELD_CONT
                 << __SRS_JFIELD_STR("name", vhost->vhost)
             << __SRS_JOBJECT_END;
     }
@@ -119,7 +154,9 @@ int SrsStatistic::dumps_streams(stringstream& ss)
     for (it = streams.begin(); it != streams.end(); it++) {
         SrsStatisticStream* stream = it->second;
         ss << __SRS_JOBJECT_START
-                << __SRS_JFIELD_STR("url", stream->stream)
+                << __SRS_JFIELD_ORG("id", stream->id) << __SRS_JFIELD_CONT
+                << __SRS_JFIELD_STR("name", stream->stream) << __SRS_JFIELD_CONT
+                << __SRS_JFIELD_ORG("vhost", stream->vhost->id)
             << __SRS_JOBJECT_END;
     }
     

@@ -38,15 +38,24 @@ class SrsRequest;
 struct SrsStatisticVhost
 {
 public:
+    int64_t id;
     std::string vhost;
+public:
+    SrsStatisticVhost();
+    virtual ~SrsStatisticVhost();
 };
 
 struct SrsStatisticStream
 {
 public:
+    int64_t id;
     SrsStatisticVhost* vhost;
     std::string app;
     std::string stream;
+    std::string url;
+public:
+    SrsStatisticStream();
+    virtual ~SrsStatisticStream();
 };
 
 struct SrsStatisticClient
@@ -60,6 +69,8 @@ class SrsStatistic
 {
 private:
     static SrsStatistic *_instance;
+    // the id to identify the sever.
+    int64_t _server_id;
     // key: vhost name, value: vhost object.
     std::map<std::string, SrsStatisticVhost*> vhosts;
     // key: stream name, value: stream object.
@@ -80,6 +91,11 @@ public:
     virtual int on_client(int id, SrsRequest* req);
 public:
     /**
+    * get the server id, used to identify the server.
+    * for example, when restart, the server id must changed.
+    */
+    virtual int64_t server_id();
+    /**
     * dumps the vhosts to sstream in json.
     */
     virtual int dumps_vhosts(std::stringstream& ss);