X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=vss.c;h=e21a1ff4fd13a715fc465c2c2758f72961856aa3;hp=1be4cd15d1db262dd5f79a43b19e7bba09f2087a;hb=926c584394c29354752458b06f7226f0da0dd35e;hpb=04a8d064400936dc6ecd3b137397cb2ce2cc25d7

diff --git a/vss.c b/vss.c
index 1be4cd15..e21a1ff4 100644
--- a/vss.c
+++ b/vss.c
@@ -36,7 +36,33 @@ static struct timeval eof_barrier;
 static struct timeval autoplay_barrier;
 
 extern struct misc_meta_data *mmd;
-extern struct sender senders[];
+
+extern void dccp_send_init(struct sender *);
+extern void http_send_init(struct sender *);
+extern void ortp_send_init(struct sender *);
+
+/** the list of supported senders */
+struct sender senders[] = {
+	{
+		.name = "http",
+		.init = http_send_init,
+	},
+	{
+		.name = "dccp",
+		.init = dccp_send_init,
+	},
+#ifdef HAVE_ORTP
+	{
+		.name = "ortp",
+		.init = ortp_send_init,
+	},
+#endif
+	{
+		.name = NULL,
+	}
+};
+
+
 
 static char *map;
 
@@ -97,6 +123,25 @@ unsigned int vss_stopped(void)
 		&& !(mmd->new_vss_status_flags & VSS_PLAYING);
 }
 
+/**
+ * Get the data of the given chunk.
+ *
+ * \param chunk_num The number of the desired chunk.
+ * \param buf Chunk data.
+ * \param len Chunk length in bytes.
+ *
+ * \return Standard.
+ */
+int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len)
+{
+	if (!map || !vss_playing())
+		return -E_CHUNK;
+	if (chunk_num >= mmd->afd.afhi.chunks_total)
+		return -E_CHUNK;
+	afh_get_chunk(chunk_num, &mmd->afd.afhi, map, buf, len);
+	return 1;
+}
+
 /**
  * Initialize the virtual streaming system.
  *
@@ -119,6 +164,7 @@ void vss_init(void)
 	}
 	free(hn);
 	free(home);
+	mmd->sender_cmd_data.cmd_num = -1;
 	if (conf.autoplay_given) {
 		struct timeval now, tmp;
 		mmd->vss_status_flags |= VSS_PLAYING;
@@ -182,14 +228,8 @@ static struct timeval *vss_compute_timeout(void)
 static void vss_eof(void)
 {
 	struct timeval now;
-	int i;
 	char *tmp;
 
-	if (!map) {
-		for (i = 0; senders[i].name; i++)
-			senders[i].shutdown_clients();
-		return;
-	}
 	if (mmd->new_vss_status_flags & VSS_NOMORE)
 		mmd->new_vss_status_flags = VSS_NEXT;
 	gettimeofday(&now, NULL);
@@ -262,6 +302,19 @@ enum afs_socket_status {
 
 static enum afs_socket_status afsss;
 
+static int need_to_request_new_audio_file(void)
+{
+	if (map) /* have audio file */
+		return 0;
+	if (!vss_playing()) /* don't need one */
+		return 0;
+	if (mmd->new_vss_status_flags & VSS_NOMORE)
+		return 0;
+	if (afsss == AFS_SOCKET_AFD_PENDING) /* already requested one */
+		return 0;
+	return 1;
+}
+
 /**
  * Compute the timeout for para_server's main select-loop.
  *
@@ -286,48 +339,40 @@ static enum afs_socket_status afsss;
 struct timeval *vss_preselect(fd_set *rfds, fd_set *wfds, int *max_fileno)
 {
 	int i;
-	struct timeval *tv;
+	struct timeval now;
 
-	para_fd_set(afs_socket, rfds, max_fileno);
-	if (!map)
+	if (!map || vss_next() || vss_paused() || vss_repos())
 		for (i = 0; senders[i].name; i++)
 			senders[i].shutdown_clients();
-	else {
-		if (vss_next()) {
-			vss_eof();
-			return vss_compute_timeout();
-		}
-	}
-	if (vss_paused() || vss_repos()) {
-		for (i = 0; senders[i].name; i++)
-			senders[i].shutdown_clients();
-		if (map) {
-			struct timeval now;
+	if (vss_next())
+		vss_eof();
+	else if (vss_paused()) {
+		if (mmd->chunks_sent) {
 			gettimeofday(&now, NULL);
-			if (!vss_paused() || mmd->chunks_sent)
-				tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier);
-			if (vss_repos())
-				tv_add(&now, &announce_tv, &data_send_barrier);
+			tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier);
 		}
 		mmd->chunks_sent = 0;
-	}
-	if (vss_repos()) {
-		mmd->new_vss_status_flags &= ~(VSS_REPOS);
+	} else if (vss_repos()) {
+		gettimeofday(&now, NULL);
+		tv_add(&now, &announce_tv, &data_send_barrier);
+		tv_add(&mmd->afd.afhi.eof_tv, &now, &eof_barrier);
+		mmd->chunks_sent = 0;
 		mmd->current_chunk = mmd->repos_request;
+		mmd->new_vss_status_flags &= ~VSS_REPOS;
 	}
-	tv = vss_compute_timeout();
-	if (tv)
-		return tv;
-	if (!map && vss_playing() &&
-			!(mmd->new_vss_status_flags & VSS_NOMORE)) {
-		if (afsss == AFS_SOCKET_READY ||
-				afsss == AFS_SOCKET_CHECK_FOR_WRITE) {
-			PARA_DEBUG_LOG("ready and playing, but no audio file\n");
-			para_fd_set(afs_socket, wfds, max_fileno);
-			afsss = AFS_SOCKET_CHECK_FOR_WRITE;
-		}
+
+	if (need_to_request_new_audio_file()) {
+		PARA_DEBUG_LOG("ready and playing, but no audio file\n");
+		para_fd_set(afs_socket, wfds, max_fileno);
+		afsss = AFS_SOCKET_CHECK_FOR_WRITE;
+	} else
+		para_fd_set(afs_socket, rfds, max_fileno);
+	for (i = 0; senders[i].name; i++) {
+		if (!senders[i].pre_select)
+			continue;
+		senders[i].pre_select(max_fileno, rfds, wfds);
 	}
-	return tv;
+	return vss_compute_timeout();
 }
 
 static int recv_afs_msg(int *fd, uint32_t *code, uint32_t *data)
@@ -416,37 +461,6 @@ err:
 	mmd->new_vss_status_flags = VSS_NEXT;
 }
 
-void vss_post_select(fd_set *rfds, fd_set *wfds)
-{
-	int ret;
-
-	if (FD_ISSET(afs_socket, rfds))
-		recv_afs_result();
-	if (afsss != AFS_SOCKET_CHECK_FOR_WRITE || !FD_ISSET(afs_socket, wfds))
-		return;
-	PARA_NOTICE_LOG("requesting new fd from afs\n");
-	ret = send_buffer(afs_socket, "new");
-	afsss = AFS_SOCKET_AFD_PENDING;
-}
-/**
- * Get the data of the given chunk.
- *
- * \param chunk_num The number of the desired chunk.
- * \param buf Chunk data.
- * \param len Chunk length in bytes.
- *
- * \return Standard.
- */
-int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len)
-{
-	if (!map || !vss_playing())
-		return -E_CHUNK;
-	if (chunk_num >= mmd->afd.afhi.chunks_total)
-		return -E_CHUNK;
-	afh_get_chunk(chunk_num, &mmd->afd.afhi, map, buf, len);
-	return 1;
-}
-
 /**
  * Main sending function.
  *
@@ -456,7 +470,7 @@ int vss_get_chunk(long unsigned chunk_num, char **buf, size_t *len)
  * each supported sender's send() function which is supposed to send out the data
  * to all connected clients.
  */
-void vss_send_chunk(void)
+static void vss_send_chunk(void)
 {
 	int i;
 	struct timeval now, due;
@@ -478,7 +492,7 @@ void vss_send_chunk(void)
 	mmd->new_vss_status_flags &= ~VSS_REPOS;
 	if (mmd->current_chunk >= mmd->afd.afhi.chunks_total) { /* eof */
 		mmd->new_vss_status_flags |= VSS_NEXT;
-		return vss_eof();
+		return;
 	}
 	/*
 	 * We call the send function also in case of empty chunks as they
@@ -498,3 +512,31 @@ void vss_send_chunk(void)
 	mmd->chunks_sent++;
 	mmd->current_chunk++;
 }
+
+void vss_post_select(fd_set *rfds, fd_set *wfds)
+{
+	int ret, i;
+
+	if (mmd->sender_cmd_data.cmd_num >= 0) {
+		int num = mmd->sender_cmd_data.cmd_num,
+			s = mmd->sender_cmd_data.sender_num;
+
+		if (senders[s].client_cmds[num])
+			senders[s].client_cmds[num](&mmd->sender_cmd_data);
+		mmd->sender_cmd_data.cmd_num = -1;
+	}
+	if (afsss != AFS_SOCKET_CHECK_FOR_WRITE) {
+		if (FD_ISSET(afs_socket, rfds))
+			recv_afs_result();
+	} else if (FD_ISSET(afs_socket, wfds)) {
+		PARA_NOTICE_LOG("requesting new fd from afs\n");
+		ret = send_buffer(afs_socket, "new");
+		afsss = AFS_SOCKET_AFD_PENDING;
+	}
+	for (i = 0; senders[i].name; i++) {
+		if (!senders[i].post_select)
+			continue;
+		senders[i].post_select(rfds, wfds);
+	}
+	vss_send_chunk();
+}