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gst/gstmessage.h gst/gstmessage.c (_gst_message_free)
Original commit message from CVS: 2005-02-23 Andy Wingo <wingo@pobox.com> * gst/gstmessage.h * gst/gstmessage.c (_gst_message_free) (gst_message_new_application): New message type, APPLICATION, explicitly for use by applications. * gst/gstbus.c (gst_bus_post): Only write a byte to the wakeup socket if the queue is coming from an empty state. Fixes a bug where posting a message could block, waiting for someone to read out bytes from the socket. (bus_watch_callback): Renamed from bus_callback, let gst_bus_pop handle the socket read. (bus_watch_destroy): Renamed from bus_destroy. * check/Makefile.am: Re-enable the gst-register test so we can deal with elements here. Add the gstbus tests. * check/gst/gstbus.c: New check, spawns off a bunch of threads all posting messages to a bus, then reads to see if they are in the right order. * check/pipelines/simple_launch_lines.c: Add some tests, and make sure to pop the message off the bus after the poll. * gst/gstbus.c (gst_bus_pop): Read off the control byte if the queue becomes empty.
This commit is contained in:
Andy Wingo
parent
b152bc1c9c
commit
0d557a7bc2
28
ChangeLog
28
ChangeLog
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@ -1,3 +1,31 @@
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2005-02-23 Andy Wingo <wingo@pobox.com>
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* gst/gstmessage.h
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* gst/gstmessage.c (_gst_message_free)
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(gst_message_new_application): New message type, APPLICATION,
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explicitly for use by applications.
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* gst/gstbus.c (gst_bus_post): Only write a byte to the wakeup
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socket if the queue is coming from an empty state. Fixes a bug
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where posting a message could block, waiting for someone to read
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out bytes from the socket.
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(bus_watch_callback): Renamed from bus_callback, let gst_bus_pop
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handle the socket read.
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(bus_watch_destroy): Renamed from bus_destroy.
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* check/Makefile.am: Re-enable the gst-register test so we can
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deal with elements here. Add the gstbus tests.
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* check/gst/gstbus.c: New check, spawns off a bunch of threads all
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posting messages to a bus, then reads to see if they are in the
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right order.
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* check/pipelines/simple_launch_lines.c: Add some tests, and make
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sure to pop the message off the bus after the poll.
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* gst/gstbus.c (gst_bus_pop): Read off the control byte if the
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queue becomes empty.
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2005-02-23 Wim Taymans <wim@fluendo.com>
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* docs/design/part-states.txt:
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@ -5,11 +5,9 @@ TESTS_ENVIRONMENT=\
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plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@
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# make all tests depend on the versioned gst-register
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#$(TESTS): $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@
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$(TESTS): $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@
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# rebuild gst-register-@GST_MAJORMINOR@ if needed
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# the EXEEXT is because am 1.6 complained about overrides
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#$(top_builddir)/tools/gst-register-@GST_MAJORMINOR@$(EXEEXT):
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$(top_builddir)/tools/gst-register-@GST_MAJORMINOR@:
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cd $(top_builddir)/tools && make
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@ -20,9 +18,8 @@ install-pluginLTLIBRARIES:
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# dumps have PIDs appended
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CLEANFILES = core.*
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#TESTS = $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@
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TESTS = \
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TESTS = $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@ \
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gst/gstbus \
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gst/gstcaps \
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gst/gstdata \
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gst/gstobject \
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@ -1,7 +1,7 @@
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/* GStreamer
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* Copyright (C) 2005 Andy Wingo <wingo@pobox.com>
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*
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* gstcaps.c: Unit test for GstCaps
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* simple_launch_lines.c: Unit test for simple pipelines
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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@ -37,7 +37,8 @@ setup_pipeline (gchar * pipe_descr)
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the poll call will time out after half a second.
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*/
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static void
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run_pipeline (GstElement * pipe, GstMessageType events, GstMessageType tevent)
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run_pipeline (GstElement * pipe, gchar * descr,
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GstMessageType events, GstMessageType tevent)
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{
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GstBus *bus;
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GstMessageType revent;
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@ -48,15 +49,22 @@ run_pipeline (GstElement * pipe, GstMessageType events, GstMessageType tevent)
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while (1) {
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revent = gst_bus_poll (bus, GST_MESSAGE_ANY, GST_SECOND / 2);
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/* always have to pop the message before getting back into poll */
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if (revent != GST_MESSAGE_UNKNOWN)
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gst_message_unref (gst_bus_pop (bus));
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if (revent == tevent) {
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break;
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} else if (revent == GST_MESSAGE_UNKNOWN) {
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g_critical ("Unexpected timeout in gst_bus_poll, looking for %d", tevent);
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g_critical ("Unexpected timeout in gst_bus_poll, looking for %d: %s",
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tevent, descr);
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break;
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} else if (revent & events) {
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continue;
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}
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g_critical ("Unexpected message received of type %d!", revent);
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g_critical ("Unexpected message received of type %d, looking for %d: %s",
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revent, tevent, descr);
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}
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gst_element_set_state (pipe, GST_STATE_NULL);
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@ -67,9 +75,25 @@ START_TEST (test_2_elements)
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{
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gchar *s;
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s = "fakesrc ! fakesink";
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run_pipeline (setup_pipeline (s),
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s = "fakesrc has-loop=false ! fakesink has-loop=true";
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run_pipeline (setup_pipeline (s), s,
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GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_UNKNOWN);
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s = "fakesrc has-loop=true ! fakesink has-loop=false";
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run_pipeline (setup_pipeline (s), s,
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GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_UNKNOWN);
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s = "fakesrc has-loop=false num-buffers=10 ! fakesink has-loop=true";
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run_pipeline (setup_pipeline (s), s,
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GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_EOS);
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s = "fakesrc has-loop=true num-buffers=10 ! fakesink has-loop=false";
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run_pipeline (setup_pipeline (s), s,
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GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_EOS);
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s = "fakesrc has-loop=false ! fakesink has-loop=false";
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ASSERT_CRITICAL (run_pipeline (setup_pipeline (s), s,
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GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_UNKNOWN));
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}
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END_TEST Suite * simple_launch_lines_suite (void)
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{
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108
gst/gstbus.c
108
gst/gstbus.c
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@ -197,11 +197,13 @@ gst_bus_post (GstBus * bus, GstMessage * message)
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GstBusSyncReply reply = GST_BUS_PASS;
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GstBusSyncHandler handler;
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gpointer handler_data;
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gboolean need_write = FALSE;
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ssize_t write_ret = -1;
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g_return_val_if_fail (GST_IS_BUS (bus), FALSE);
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g_return_val_if_fail (GST_IS_MESSAGE (message), FALSE);
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//g_print ("posting message on bus, type %d\n", GST_MESSAGE_TYPE (message));
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GST_DEBUG_OBJECT (bus, "posting message on bus");
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GST_LOCK (bus);
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@ -222,20 +224,27 @@ gst_bus_post (GstBus * bus, GstMessage * message)
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case GST_BUS_PASS:
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/* pass the message to the async queue */
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g_mutex_lock (bus->queue_lock);
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if (g_queue_get_length (bus->queue) == 0)
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need_write = TRUE;
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g_queue_push_tail (bus->queue, message);
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g_mutex_unlock (bus->queue_lock);
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c = 'p';
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errno = EAGAIN;
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while (write_ret == -1) {
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switch (errno) {
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case EAGAIN:
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case EINTR:
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break;
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default:
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perror ("gst_bus_post: could not write to fd");
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return FALSE;
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if (g_queue_get_length (bus->queue) == 0)
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need_write = TRUE;
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if (need_write) {
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c = 'p';
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errno = EAGAIN;
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while (write_ret == -1) {
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switch (errno) {
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case EAGAIN:
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case EINTR:
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break;
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default:
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perror ("gst_bus_post: could not write to fd");
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return FALSE;
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}
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write_ret = write (bus->control_socket[1], &c, 1);
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}
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write_ret = write (bus->control_socket[1], &c, 1);
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}
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break;
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case GST_BUS_ASYNC:
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@ -255,21 +264,27 @@ gst_bus_post (GstBus * bus, GstMessage * message)
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* the cond will be signalled and we can continue */
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g_mutex_lock (lock);
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g_mutex_lock (bus->queue_lock);
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if (g_queue_get_length (bus->queue) == 0)
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need_write = TRUE;
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g_queue_push_tail (bus->queue, message);
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g_mutex_unlock (bus->queue_lock);
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c = 'p';
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errno = EAGAIN;
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while (write_ret == -1) {
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switch (errno) {
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case EAGAIN:
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case EINTR:
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break;
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default:
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perror ("gst_bus_post: could not write to fd");
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return FALSE;
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if (need_write) {
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c = 'p';
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errno = EAGAIN;
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while (write_ret == -1) {
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switch (errno) {
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case EAGAIN:
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case EINTR:
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break;
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default:
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perror ("gst_bus_post: could not write to fd");
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return FALSE;
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}
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write_ret = write (bus->control_socket[1], &c, 1);
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}
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write_ret = write (bus->control_socket[1], &c, 1);
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}
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/* now block till the message is freed */
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g_cond_wait (cond, lock);
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g_mutex_unlock (lock);
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@ -324,13 +339,36 @@ GstMessage *
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gst_bus_pop (GstBus * bus)
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{
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GstMessage *message;
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gboolean needs_read = FALSE;
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g_return_val_if_fail (GST_IS_BUS (bus), NULL);
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g_mutex_lock (bus->queue_lock);
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message = g_queue_pop_head (bus->queue);
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if (message && g_queue_get_length (bus->queue) == 0)
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needs_read = TRUE;
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g_mutex_unlock (bus->queue_lock);
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if (needs_read) {
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gchar c;
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ssize_t read_ret = -1;
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/* the char in the fd is essentially just a way to wake us up. read it off so
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we're not woken up again. */
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errno = EAGAIN;
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while (read_ret == -1) {
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switch (errno) {
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case EAGAIN:
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case EINTR:
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break;
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default:
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perror ("gst_bus_pop: could not read from fd");
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return NULL;
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}
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read_ret = read (bus->control_socket[0], &c, 1);
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}
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}
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return message;
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}
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@ -413,30 +451,14 @@ typedef struct
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} GstBusWatch;
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static gboolean
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bus_callback (GIOChannel * channel, GIOCondition cond, GstBusWatch * watch)
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bus_watch_callback (GIOChannel * channel, GIOCondition cond,
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GstBusWatch * watch)
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{
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GstMessage *message;
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gboolean needs_pop = TRUE;
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gchar c;
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ssize_t read_ret = -1;
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g_return_val_if_fail (GST_IS_BUS (watch->bus), FALSE);
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/* the char in the fd is essentially just a way to wake us up. read it off so
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we're not woken up again. */
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errno = EAGAIN;
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while (read_ret == -1) {
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switch (errno) {
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case EAGAIN:
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case EINTR:
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break;
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default:
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perror ("gst_bus_pop: could not read from fd");
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return TRUE;
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}
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read_ret = read (watch->bus->control_socket[0], &c, 1);
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}
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message = gst_bus_peek (watch->bus);
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g_return_val_if_fail (message != NULL, TRUE);
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@ -451,7 +473,7 @@ bus_callback (GIOChannel * channel, GIOCondition cond, GstBusWatch * watch)
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}
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static void
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bus_destroy (GstBusWatch * watch)
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bus_watch_destroy (GstBusWatch * watch)
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{
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if (watch->notify) {
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watch->notify (watch->user_data);
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@ -496,8 +518,8 @@ gst_bus_add_watch_full (GstBus * bus, gint priority,
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if (priority != G_PRIORITY_DEFAULT)
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g_source_set_priority (watch->source, priority);
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g_source_set_callback (watch->source, (GSourceFunc) bus_callback, watch,
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(GDestroyNotify) bus_destroy);
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g_source_set_callback (watch->source, (GSourceFunc) bus_watch_callback,
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watch, (GDestroyNotify) bus_watch_destroy);
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id = g_source_attach (watch->source, NULL);
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g_source_unref (watch->source);
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@ -114,6 +114,12 @@ _gst_message_free (GstMessage * message)
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GST_ERROR ("tag message %p didn't contain a valid tag list!", message);
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}
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break;
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case GST_MESSAGE_APPLICATION:
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if (message->message_data.structure.structure) {
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gst_structure_free (message->message_data.structure.structure);
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message->message_data.structure.structure = NULL;
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}
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break;
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default:
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break;
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}
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@ -160,8 +166,10 @@ gst_message_new (GstMessageType type, GstObject * src)
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GST_MESSAGE_TYPE (message) = type;
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GST_MESSAGE_TIMESTAMP (message) = G_GINT64_CONSTANT (0);
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gst_object_ref (src);
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GST_MESSAGE_SRC (message) = src;
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if (src) {
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gst_object_ref (src);
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GST_MESSAGE_SRC (message) = src;
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}
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return message;
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}
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@ -269,3 +277,26 @@ gst_message_new_state_changed (GstObject * src, GstElementState old,
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return message;
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}
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/**
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* gst_message_new_application:
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* @structure: The structure for the message. The message will take ownership of
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* the structure.
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*
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* Create a new application-specific message. These messages can be used by
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* application-specific plugins to pass data to the app.
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*
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* Returns: The new message.
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*
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* MT safe.
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*/
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GstMessage *
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gst_message_new_application (GstStructure * structure)
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{
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GstMessage *message;
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message = gst_message_new (GST_MESSAGE_APPLICATION, NULL);
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message->message_data.structure.structure = structure;
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return message;
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}
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|
|
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|
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@ -47,6 +47,8 @@ GST_EXPORT GType _gst_message_type;
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* @GST_MESSAGE_STRUCTURE_CHANGE: the structure of the pipeline changed.
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* @GST_MESSAGE_STREAM_STATUS: status about a stream, emited when it starts,
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* stops, errors, etc..
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* @GST_MESSAGE_APPLICATION: message posted by the application, possibly
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* via an application-specific element.
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* @GST_MESSAGE_ANY: mask for all of the above messages.
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*/
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typedef enum
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@ -63,6 +65,7 @@ typedef enum
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GST_MESSAGE_NEW_CLOCK = (1 << 8),
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GST_MESSAGE_STRUCTURE_CHANGE = (1 << 9),
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GST_MESSAGE_STREAM_STATUS = (1 << 10),
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GST_MESSAGE_APPLICATION = (1 << 11),
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GST_MESSAGE_ANY = 0xffffffff
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} GstMessageType;
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@ -156,6 +159,7 @@ GstMessage * gst_message_new_warning (GstObject * src, GError * error, gchar *
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GstMessage * gst_message_new_tag (GstObject * src, GstTagList * tag_list);
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GstMessage * gst_message_new_state_changed (GstObject * src, GstElementState old,
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GstElementState new);
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GstMessage * gst_message_new_application (GstStructure *structure);
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G_END_DECLS
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#endif /* __GST_MESSAGE_H__ */
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|
|
|
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|
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@ -5,11 +5,9 @@ TESTS_ENVIRONMENT=\
|
|||
plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@
|
||||
|
||||
# make all tests depend on the versioned gst-register
|
||||
#$(TESTS): $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@
|
||||
$(TESTS): $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@
|
||||
|
||||
# rebuild gst-register-@GST_MAJORMINOR@ if needed
|
||||
# the EXEEXT is because am 1.6 complained about overrides
|
||||
#$(top_builddir)/tools/gst-register-@GST_MAJORMINOR@$(EXEEXT):
|
||||
$(top_builddir)/tools/gst-register-@GST_MAJORMINOR@:
|
||||
cd $(top_builddir)/tools && make
|
||||
|
||||
|
|
@ -20,9 +18,8 @@ install-pluginLTLIBRARIES:
|
|||
# dumps have PIDs appended
|
||||
CLEANFILES = core.*
|
||||
|
||||
#TESTS = $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@
|
||||
|
||||
TESTS = \
|
||||
TESTS = $(top_builddir)/tools/gst-register-@GST_MAJORMINOR@ \
|
||||
gst/gstbus \
|
||||
gst/gstcaps \
|
||||
gst/gstdata \
|
||||
gst/gstobject \
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) 2005 Andy Wingo <wingo@pobox.com>
|
||||
*
|
||||
* gstcaps.c: Unit test for GstCaps
|
||||
* simple_launch_lines.c: Unit test for simple pipelines
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
|
|
@ -37,7 +37,8 @@ setup_pipeline (gchar * pipe_descr)
|
|||
the poll call will time out after half a second.
|
||||
*/
|
||||
static void
|
||||
run_pipeline (GstElement * pipe, GstMessageType events, GstMessageType tevent)
|
||||
run_pipeline (GstElement * pipe, gchar * descr,
|
||||
GstMessageType events, GstMessageType tevent)
|
||||
{
|
||||
GstBus *bus;
|
||||
GstMessageType revent;
|
||||
|
|
@ -48,15 +49,22 @@ run_pipeline (GstElement * pipe, GstMessageType events, GstMessageType tevent)
|
|||
|
||||
while (1) {
|
||||
revent = gst_bus_poll (bus, GST_MESSAGE_ANY, GST_SECOND / 2);
|
||||
|
||||
/* always have to pop the message before getting back into poll */
|
||||
if (revent != GST_MESSAGE_UNKNOWN)
|
||||
gst_message_unref (gst_bus_pop (bus));
|
||||
|
||||
if (revent == tevent) {
|
||||
break;
|
||||
} else if (revent == GST_MESSAGE_UNKNOWN) {
|
||||
g_critical ("Unexpected timeout in gst_bus_poll, looking for %d", tevent);
|
||||
g_critical ("Unexpected timeout in gst_bus_poll, looking for %d: %s",
|
||||
tevent, descr);
|
||||
break;
|
||||
} else if (revent & events) {
|
||||
continue;
|
||||
}
|
||||
g_critical ("Unexpected message received of type %d!", revent);
|
||||
g_critical ("Unexpected message received of type %d, looking for %d: %s",
|
||||
revent, tevent, descr);
|
||||
}
|
||||
|
||||
gst_element_set_state (pipe, GST_STATE_NULL);
|
||||
|
|
@ -67,9 +75,25 @@ START_TEST (test_2_elements)
|
|||
{
|
||||
gchar *s;
|
||||
|
||||
s = "fakesrc ! fakesink";
|
||||
run_pipeline (setup_pipeline (s),
|
||||
s = "fakesrc has-loop=false ! fakesink has-loop=true";
|
||||
run_pipeline (setup_pipeline (s), s,
|
||||
GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_UNKNOWN);
|
||||
|
||||
s = "fakesrc has-loop=true ! fakesink has-loop=false";
|
||||
run_pipeline (setup_pipeline (s), s,
|
||||
GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_UNKNOWN);
|
||||
|
||||
s = "fakesrc has-loop=false num-buffers=10 ! fakesink has-loop=true";
|
||||
run_pipeline (setup_pipeline (s), s,
|
||||
GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_EOS);
|
||||
|
||||
s = "fakesrc has-loop=true num-buffers=10 ! fakesink has-loop=false";
|
||||
run_pipeline (setup_pipeline (s), s,
|
||||
GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_EOS);
|
||||
|
||||
s = "fakesrc has-loop=false ! fakesink has-loop=false";
|
||||
ASSERT_CRITICAL (run_pipeline (setup_pipeline (s), s,
|
||||
GST_MESSAGE_STATE_CHANGED, GST_MESSAGE_UNKNOWN));
|
||||
}
|
||||
END_TEST Suite * simple_launch_lines_suite (void)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in a new issue