refine comments for SrsMessageArray. 2.0.25

@@ -498,6 +498,7 @@ int SrsEdgeForwarder::cycle()
         }
         
         // forward all messages.
+        // each msg in msgs.msgs must be free, for the SrsMessageArray never free them.
         int count = 0;
         if ((ret = queue->dump_packets(msgs.max, msgs.msgs, count)) != ERROR_SUCCESS) {
             srs_error("get message to push to origin failed. ret=%d", ret);
@@ -522,7 +523,7 @@ int SrsEdgeForwarder::cycle()
             continue;
         }
     
-        // all msgs to forward to origin.
+        // sendout messages, all messages are freed by send_and_free_messages().
         if ((ret = client->send_and_free_messages(msgs.msgs, count, stream_id)) != ERROR_SUCCESS) {
             srs_error("edge publish push message to server failed. ret=%d", ret);
             return ret;

@@ -416,6 +416,7 @@ int SrsForwarder::forward()
         }
         
         // forward all messages.
+        // each msg in msgs.msgs must be free, for the SrsMessageArray never free them.
         int count = 0;
         if ((ret = queue->dump_packets(msgs.max, msgs.msgs, count)) != ERROR_SUCCESS) {
             srs_error("get message to forward failed. ret=%d", ret);
@@ -438,7 +439,7 @@ int SrsForwarder::forward()
             continue;
         }
     
-        // all msgs to forward.
+        // sendout messages, all messages are freed by send_and_free_messages().
         if ((ret = client->send_and_free_messages(msgs.msgs, count, stream_id)) != ERROR_SUCCESS) {
             srs_error("forwarder messages to server failed. ret=%d", ret);
             return ret;

@@ -558,6 +558,7 @@ int SrsRtmpConn::playing(SrsSource* source)
         pithy_print.elapse();
         
         // get messages from consumer.
+        // each msg in msgs.msgs must be free, for the SrsMessageArray never free them.
         int count = 0;
         if ((ret = consumer->dump_packets(msgs.max, msgs.msgs, count)) != ERROR_SUCCESS) {
             srs_error("get messages from consumer failed. ret=%d", ret);
@@ -591,9 +592,7 @@ int SrsRtmpConn::playing(SrsSource* source)
             }
         }
         
-        // sendout messages
-        // @remark, becareful, all msgs must be free explicitly,
-        //      free by send_and_free_message or srs_freep.
+        // sendout messages, all messages are freed by send_and_free_messages().
         if (count > 0) {
             // no need to assert msg, for the rtmp will assert it.
             if ((ret = rtmp->send_and_free_messages(msgs.msgs, count, res->stream_id)) != ERROR_SUCCESS) {

@@ -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    24
+#define VERSION_REVISION    25
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
 #define RTMP_SIG_SRS_ROLE "origin/edge server"

@@ -40,6 +40,9 @@ SrsMessageArray::SrsMessageArray(int max_msgs)
 
 SrsMessageArray::~SrsMessageArray()
 {
+    // we just free the msgs itself,
+    // both delete and delete[] is ok,
+    // for each msg in msgs is already freed by send_and_free_messages.
     srs_freep(msgs);
 }