fix #209, cleanup hls when stop and timeout. 2.0.173.

@@ -343,6 +343,8 @@ Remark:
 ## History
 
 ### SRS 2.0 history
+
+* v2.0, 2015-05-30, fix [#209](https://github.com/simple-rtmp-server/srs/issues/209) cleanup hls when stop and timeout. 2.0.173.
 * v2.0, 2015-05-29, fix [#409](https://github.com/simple-rtmp-server/srs/issues/409) support pure video hls. 2.0.172.
 * v2.0, 2015-05-28, support [srs-dolphin][srs-dolphin], the multiple-process SRS.
 * v2.0, 2015-05-24, fix [#404](https://github.com/simple-rtmp-server/srs/issues/404) register handler then start http thread. 2.0.167.

@@ -292,7 +292,6 @@ SrsHlsMuxer::SrsHlsMuxer()
 
 SrsHlsMuxer::~SrsHlsMuxer()
 {
-    
     std::vector<SrsHlsSegment*>::iterator it;
     for (it = segments.begin(); it != segments.end(); ++it) {
         SrsHlsSegment* segment = *it;
@@ -308,38 +307,35 @@ SrsHlsMuxer::~SrsHlsMuxer()
 
 void SrsHlsMuxer::dispose()
 {
-    if (!should_write_file) {
-        return;
-    }
-    
-    std::vector<SrsHlsSegment*>::iterator it;
-    for (it = segments.begin(); it != segments.end(); ++it) {
-        SrsHlsSegment* segment = *it;
-        if (unlink(segment->full_path.c_str()) < 0) {
-            srs_warn("dispose unlink path failed, file=%s.", segment->full_path.c_str());
+    if (should_write_file) {
+        std::vector<SrsHlsSegment*>::iterator it;
+        for (it = segments.begin(); it != segments.end(); ++it) {
+            SrsHlsSegment* segment = *it;
+            if (unlink(segment->full_path.c_str()) < 0) {
+                srs_warn("dispose unlink path failed, file=%s.", segment->full_path.c_str());
+            }
+            srs_freep(segment);
         }
-    }
-    
-    if (current) {
-        std::string path = current->full_path + ".tmp";
-        if (unlink(path.c_str()) < 0) {
-            srs_warn("dispose unlink path failed, file=%s", path.c_str());
+        segments.clear();
+        
+        if (current) {
+            std::string path = current->full_path + ".tmp";
+            if (unlink(path.c_str()) < 0) {
+                srs_warn("dispose unlink path failed, file=%s", path.c_str());
+            }
+            srs_freep(current);
+        }
+        
+        if (unlink(m3u8.c_str()) < 0) {
+            srs_warn("dispose unlink path failed. file=%s", m3u8.c_str());
         }
     }
     
-    if (unlink(m3u8.c_str()) < 0) {
-        srs_warn("dispose unlink path failed. file=%s", m3u8.c_str());
-    }
+    // TODO: FIXME: support hls dispose in HTTP cache.
+    
     srs_trace("gracefully dispose hls %s", req? req->get_stream_url().c_str() : "");
 }
 
-int SrsHlsMuxer::cycle()
-{
-    int ret = ERROR_SUCCESS;
-    // TODO: FIXME: implements it.
-    return ret;
-}
-
 int SrsHlsMuxer::sequence_no()
 {
     return _sequence_no;
@@ -1125,6 +1121,8 @@ SrsHls::SrsHls()
     handler = NULL;
     
     hls_enabled = false;
+    hls_can_dispose = false;
+    last_update_time = 0;
 
     codec = new SrsAvcAacCodec();
     sample = new SrsCodecSample();
@@ -1160,8 +1158,33 @@ void SrsHls::dispose()
 
 int SrsHls::cycle()
 {
+    int ret = ERROR_SUCCESS;
+    
     srs_info("hls cycle for source %d", source->source_id());
-    return muxer->cycle();
+    
+    if (last_update_time <= 0) {
+        last_update_time = srs_get_system_time_ms();
+    }
+    
+    if (!_req) {
+        return ret;
+    }
+    
+    int hls_dispose = _srs_config->get_hls_dispose(_req->vhost) * 1000;
+    if (srs_get_system_time_ms() - last_update_time <= hls_dispose) {
+        return ret;
+    }
+    last_update_time = srs_get_system_time_ms();
+    
+    if (!hls_can_dispose) {
+        return ret;
+    }
+    hls_can_dispose = false;
+    
+    srs_trace("hls cycle to dispose hls %s, timeout=%dms", _req->get_stream_url().c_str(), hls_dispose);
+    dispose();
+    
+    return ret;
 }
 
 int SrsHls::initialize(SrsSource* s, ISrsHlsHandler* h)
@@ -1182,6 +1205,11 @@ int SrsHls::on_publish(SrsRequest* req)
 {
     int ret = ERROR_SUCCESS;
     
+    _req = req;
+    
+    // update the hls time, for hls_dispose.
+    last_update_time = srs_get_system_time_ms();
+    
     // support multiple publish.
     if (hls_enabled) {
         return ret;
@@ -1199,6 +1227,9 @@ int SrsHls::on_publish(SrsRequest* req)
     // if enabled, open the muxer.
     hls_enabled = true;
     
+    // ok, the hls can be dispose, or need to be dispose.
+    hls_can_dispose = true;
+    
     // notice the source to get the cached sequence header.
     // when reload to start hls, hls will never get the sequence header in stream,
     // use the SrsSource.on_hls_start to push the sequence header to HLS.
@@ -1250,6 +1281,9 @@ int SrsHls::on_audio(SrsSharedPtrMessage* shared_audio)
     if (!hls_enabled) {
         return ret;
     }
+    
+    // update the hls time, for hls_dispose.
+    last_update_time = srs_get_system_time_ms();
 
     SrsSharedPtrMessage* audio = shared_audio->copy();
     SrsAutoFree(SrsSharedPtrMessage, audio);
@@ -1311,6 +1345,9 @@ int SrsHls::on_video(SrsSharedPtrMessage* shared_video)
     if (!hls_enabled) {
         return ret;
     }
+    
+    // update the hls time, for hls_dispose.
+    last_update_time = srs_get_system_time_ms();
 
     SrsSharedPtrMessage* video = shared_video->copy();
     SrsAutoFree(SrsSharedPtrMessage, video);

@@ -261,7 +261,6 @@ public:
     virtual ~SrsHlsMuxer();
 public:
     virtual void dispose();
-    virtual int cycle();
 public:
     virtual int sequence_no();
     virtual std::string ts_url();
@@ -382,7 +381,11 @@ private:
     SrsHlsCache* hls_cache;
     ISrsHlsHandler* handler;
 private:
+    SrsRequest* _req;
     bool hls_enabled;
+    bool hls_can_dispose;
+    int64_t last_update_time;
+private:
     SrsSource* source;
     SrsAvcAacCodec* codec;
     SrsCodecSample* sample;

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    172
+#define VERSION_REVISION    173
 
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"