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rtsp: make read uncancelable when reading a message

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When we start to read a message, we need to continue reading until the end of
the message or else we lose track and cause parse errors. Use a variable
may_cancel to avoid cancelation after we read the first byte until we have
the complete message.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=703088
This commit is contained in:
Wim Taymans 2013-06-26 15:03:05 +02:00
parent 97e68b36c7
commit 32a1deb404
1 changed files with 8 additions and 2 deletions
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10
gst-libs/gst/rtsp/gstrtspconnection.c
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@ -121,6 +121,7 @@ struct _GstRTSPConnection
GSocket *write_socket;
GSocket *socket0, *socket1;
gboolean manual_http;
gboolean may_cancel;
GCancellable *cancellable;
gchar tunnelid[TUNNELID_LEN];
@ -217,6 +218,7 @@ gst_rtsp_connection_create (const GstRTSPUrl * url, GstRTSPConnection ** conn)
newconn = g_new0 (GstRTSPConnection, 1);
newconn->may_cancel = TRUE;
newconn->cancellable = g_cancellable_new ();
newconn->client = g_socket_client_new ();
@ -925,11 +927,11 @@ fill_raw_bytes (GstRTSPConnection * conn, guint8 * buffer, guint size,
gsize count = size - out;
if (block)
r = g_input_stream_read (conn->input_stream, (gchar *) & buffer[out],
count, conn->cancellable, err);
count, conn->may_cancel ? conn->cancellable : NULL, err);
else
r = g_pollable_input_stream_read_nonblocking (G_POLLABLE_INPUT_STREAM
(conn->input_stream), (gchar *) & buffer[out], count,
conn->cancellable, err);
conn->may_cancel ? conn->cancellable : NULL, err);
if (G_UNLIKELY (r < 0)) {
if (out == 0) {
@ -1663,12 +1665,14 @@ build_next (GstRTSPBuilder * builder, GstRTSPMessage * message,
if (c == '$') {
/* data message, prepare for the header */
builder->state = STATE_DATA_HEADER;
conn->may_cancel = FALSE;
} else if (c == '\n' || c == '\r') {
/* skip \n and \r */
builder->offset = 0;
} else {
builder->line = 0;
builder->state = STATE_READ_LINES;
conn->may_cancel = FALSE;
}
break;
}
@ -1770,6 +1774,8 @@ build_next (GstRTSPBuilder * builder, GstRTSPMessage * message,
gchar *session_cookie;
gchar *session_id;
conn->may_cancel = TRUE;
if (message->type == GST_RTSP_MESSAGE_DATA) {
/* data messages don't have headers */
res = GST_RTSP_OK;