[rygel] core: Synchronous streaming of LiveResponse

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 0189add0b5c1d1aeb0c0d9e93ccff6290a7eafd2
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Jan 12 18:52:36 2010 +0200

    core: Synchronous streaming of LiveResponse
    
    Now we wait for the chunk to be actually sent to the client before
    we process any more chunks from fakesink.

 src/rygel/rygel-live-response.vala |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/src/rygel/rygel-live-response.vala b/src/rygel/rygel-live-response.vala
index b83f750..8713dc8 100644
--- a/src/rygel/rygel-live-response.vala
+++ b/src/rygel/rygel-live-response.vala
@@ -40,6 +40,8 @@ internal class Rygel.LiveResponse : Rygel.HTTPResponse {
 
     private SourceFunc run_continue;
 
+    private MainLoop buffer_loop;
+
     public LiveResponse (Soup.Server  server,
                          Soup.Message msg,
                          string       name,
@@ -52,6 +54,8 @@ internal class Rygel.LiveResponse : Rygel.HTTPResponse {
 
         this.prepare_pipeline (name, src);
         this.time_range = time_range;
+
+        this.buffer_loop = new MainLoop (null, false);
     }
 
     public override async void run () {
@@ -63,11 +67,15 @@ internal class Rygel.LiveResponse : Rygel.HTTPResponse {
         }
 
         this.run_continue = run.callback;
+        this.msg.wrote_chunk.connect (this.on_wrote_chunk);
 
         yield;
     }
 
     public override void end (bool aborted, uint status) {
+        this.msg.wrote_chunk.disconnect (this.on_wrote_chunk);
+
+        this.buffer_loop.quit ();
         this.pipeline.set_state (State.NULL);
 
         if (!aborted) {
@@ -211,7 +219,17 @@ internal class Rygel.LiveResponse : Rygel.HTTPResponse {
     private void on_new_buffer (Element sink,
                                 Buffer  buffer,
                                 Pad     pad) {
+        if (this.cancellable.is_cancelled ()) {
+            return;
+        }
+
         this.push_data (buffer.data, buffer.size);
+
+        this.buffer_loop.run ();
+    }
+
+    private void on_wrote_chunk (Soup.Message msg) {
+        this.buffer_loop.quit ();
     }
 
     private bool bus_handler (Gst.Bus     bus,