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Rearranged cothreads sources a bit, added some API docs.

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Original commit message from CVS:
Rearranged cothreads sources a bit, added some API docs.
Added some functions needed for gstreamer-inspect.
Added num_sources to fakesink.
This commit is contained in:
Erik Walthinsen 2001-01-04 10:54:27 +00:00
parent e318439f64
commit 759d83e487
9 changed files with 208 additions and 70 deletions
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98
gst/cothreads.c
View file

@ -42,6 +42,50 @@ pthread_key_t _cothread_key = -1;
* cothread_switch. This likely will speed things up fractionally */
#define COTHREAD_PARANOID
/**
* cothread_init:
*
* create and initialize a new cotread context
*
* Returns: the new cothread context
*/
cothread_context*
cothread_init (void)
{
cothread_context *ctx = (cothread_context *)malloc(sizeof(cothread_context));
GST_INFO (GST_CAT_COTHREADS,"initializing cothreads");
if (_cothread_key == -1) {
if (pthread_key_create (&_cothread_key,NULL) != 0) {
perror ("pthread_key_create");
return NULL;
}
}
pthread_setspecific (_cothread_key,ctx);
memset (ctx->threads,0,sizeof(ctx->threads));
ctx->threads[0] = (cothread_state *)malloc(sizeof(cothread_state));
ctx->threads[0]->ctx = ctx;
ctx->threads[0]->threadnum = 0;
ctx->threads[0]->func = NULL;
ctx->threads[0]->argc = 0;
ctx->threads[0]->argv = NULL;
ctx->threads[0]->flags = COTHREAD_STARTED;
ctx->threads[0]->sp = (int *)CURRENT_STACK_FRAME;
ctx->threads[0]->pc = 0;
GST_INFO (GST_CAT_COTHREADS,"0th thread is %p at sp:%p",ctx->threads[0], ctx->threads[0]->sp);
// we consider the initiating process to be cothread 0
ctx->nthreads = 1;
ctx->current = 0;
ctx->data = g_hash_table_new(g_str_hash, g_str_equal);
return ctx;
}
/**
* cothread_create:
* @ctx: the cothread context
@ -109,64 +153,14 @@ cothread_setfunc (cothread_state *thread,
thread->pc = (int *)func;
}
/**
* cothread_init:
*
* create and initialize a new cotread context
*
* Returns: the new cothread context
*/
cothread_context*
cothread_init (void)
{
cothread_context *ctx = (cothread_context *)malloc(sizeof(cothread_context));
GST_INFO (GST_CAT_COTHREADS,"initializing cothreads");
if (_cothread_key == -1) {
if (pthread_key_create (&_cothread_key,NULL) != 0) {
perror ("pthread_key_create");
return NULL;
}
}
pthread_setspecific (_cothread_key,ctx);
memset (ctx->threads,0,sizeof(ctx->threads));
ctx->threads[0] = (cothread_state *)malloc(sizeof(cothread_state));
ctx->threads[0]->ctx = ctx;
ctx->threads[0]->threadnum = 0;
ctx->threads[0]->func = NULL;
ctx->threads[0]->argc = 0;
ctx->threads[0]->argv = NULL;
ctx->threads[0]->flags = COTHREAD_STARTED;
ctx->threads[0]->sp = (int *)CURRENT_STACK_FRAME;
ctx->threads[0]->pc = 0;
GST_INFO (GST_CAT_COTHREADS,"0th thread is %p at sp:%p",ctx->threads[0], ctx->threads[0]->sp);
// we consider the initiating process to be cothread 0
ctx->nthreads = 1;
ctx->current = 0;
ctx->data = g_hash_table_new(g_str_hash, g_str_equal);
return ctx;
}
/**
* cothread_main:
* @ctx: the cothread context
*
* Returns: the new cothread state
*/
cothread_state*
static cothread_state*
cothread_main(cothread_context *ctx)
{
GST_DEBUG (0,"returning %p, the 0th cothread\n",ctx->threads[0]);
return ctx->threads[0];
}
void
static void
cothread_stub (void)
{
cothread_context *ctx = pthread_getspecific(_cothread_key);

74
gst/elements/gstfakesink.c
View file

@ -43,14 +43,17 @@ enum {
enum {
ARG_0,
/* FILL ME */
ARG_NUM_SOURCES,
};
static void gst_fakesink_class_init(GstFakeSinkClass *klass);
static void gst_fakesink_init(GstFakeSink *fakesink);
static void gst_fakesink_class_init (GstFakeSinkClass *klass);
static void gst_fakesink_init (GstFakeSink *fakesink);
static void gst_fakesink_chain(GstPad *pad,GstBuffer *buf);
static void gst_fakesink_set_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_fakesink_get_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_fakesink_chain (GstPad *pad,GstBuffer *buf);
static GstElementClass *parent_class = NULL;
static guint gst_fakesink_signals[LAST_SIGNAL] = { 0 };
@ -83,6 +86,11 @@ gst_fakesink_class_init (GstFakeSinkClass *klass)
gtkobject_class = (GtkObjectClass*)klass;
parent_class = gtk_type_class (GST_TYPE_ELEMENT);
gtk_object_add_arg_type ("GstFakeSink::num_sources", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_NUM_SOURCES);
gst_fakesink_signals[SIGNAL_HANDOFF] =
gtk_signal_new ("handoff", GTK_RUN_LAST, gtkobject_class->type,
GTK_SIGNAL_OFFSET (GstFakeSinkClass, handoff),
@ -91,20 +99,70 @@ gst_fakesink_class_init (GstFakeSinkClass *klass)
gtk_object_class_add_signals (gtkobject_class, gst_fakesink_signals,
LAST_SIGNAL);
parent_class = gtk_type_class (GST_TYPE_ELEMENT);
gtkobject_class->set_arg = gst_fakesink_set_arg;
gtkobject_class->get_arg = gst_fakesink_get_arg;
}
static void
gst_fakesink_init (GstFakeSink *fakesink)
{
fakesink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (fakesink), fakesink->sinkpad);
gst_pad_set_chain_function (fakesink->sinkpad, gst_fakesink_chain);
GstPad *pad;
pad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (fakesink), pad);
gst_pad_set_chain_function (pad, gst_fakesink_chain);
fakesink->sinkpads = g_slist_prepend (NULL, pad);
fakesink->numsinkpads = 1;
// we're ready right away, since we don't have any args...
// gst_element_set_state(GST_ELEMENT(fakesink),GST_STATE_READY);
}
static void
gst_fakesink_set_arg (GtkObject *object, GtkArg *arg, guint id)
{
GstFakeSink *sink;
gint new_numsinks;
GstPad *pad;
/* it's not null if we got it, but it might not be ours */
sink = GST_FAKESINK (object);
switch(id) {
case ARG_NUM_SOURCES:
new_numsinks = GTK_VALUE_INT (*arg);
while (sink->numsinkpads < new_numsinks) {
pad = gst_pad_new (g_strdup_printf ("sink%d", sink->numsinkpads), GST_PAD_SINK);
gst_pad_set_chain_function (pad, gst_fakesink_chain);
gst_element_add_pad (GST_ELEMENT (sink), pad);
sink->sinkpads = g_slist_append (sink->sinkpads, pad);
sink->numsinkpads++;
}
break;
default:
break;
}
}
static void
gst_fakesink_get_arg (GtkObject *object, GtkArg *arg, guint id)
{
GstFakeSink *sink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_FAKESINK (object));
sink = GST_FAKESINK (object);
switch (id) {
case ARG_NUM_SOURCES:
GTK_VALUE_INT (*arg) = sink->numsinkpads;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
/**
* gst_fakesink_chain:
* @pad: the pad this faksink is connected to

3
gst/elements/gstfakesink.h
View file

@ -54,7 +54,8 @@ typedef struct _GstFakeSinkClass GstFakeSinkClass;
struct _GstFakeSink {
GstElement element;
GstPad *sinkpad;
GSList *sinkpads;
gint numsinkpads;
};
struct _GstFakeSinkClass {

16
gst/gstpad.c
View file

@ -1105,3 +1105,19 @@ gst_pad_set_eos(GstPad *pad)
return TRUE;
}
/*
GstPad *
gst_pad_select(GstPad *nextpad, ...) {
va_list args;
GstPad *pad;
GSList *pads = NULL;
// construct the list of pads
va_start (args, nextpad);
while ((pad = va_arg (args, GstPad*)))
pads = g_slist_prepend (pads, pad);
va_end (args);
// now switch to the nextpad
*/

2
gst/gstpad.h
View file

@ -210,6 +210,8 @@ GstBuffer* gst_pad_pull_region (GstPad *pad, gulong offset, gulong size);
(((pad)->peer->pullregionfunc) ? ((pad)->peer->pullregionfunc)((pad)->peer,(offset),(size)) : NULL)
#endif
GstPad * gst_pad_select (GstPad *nextpad, ...);
#define gst_pad_eos(pad) ((pad)->peer->eosfunc((pad)->peer))
gboolean gst_pad_set_eos (GstPad *pad);

7
gst/gstplugin.c
View file

@ -648,3 +648,10 @@ gst_plugin_load_thyself (xmlNodePtr parent)
GST_INFO (GST_CAT_PLUGIN_LOADING,"added %d registered factories and %d types",elementcount,typecount);
}
GList*
gst_plugin_get_factory_list (GstPlugin *plugin)
{
return plugin->elements;
}

1
gst/gstplugin.h
View file

@ -62,6 +62,7 @@ gboolean gst_library_load (gchar *name);
void gst_plugin_add_factory (GstPlugin *plugin, GstElementFactory *factory);
void gst_plugin_add_type (GstPlugin *plugin, GstTypeFactory *factory);
GList* gst_plugin_get_factory_list (GstPlugin *plugin);
GstPlugin* gst_plugin_find (const gchar *name);
GList* gst_plugin_get_list (void);

74
plugins/elements/gstfakesink.c
View file

@ -43,14 +43,17 @@ enum {
enum {
ARG_0,
/* FILL ME */
ARG_NUM_SOURCES,
};
static void gst_fakesink_class_init(GstFakeSinkClass *klass);
static void gst_fakesink_init(GstFakeSink *fakesink);
static void gst_fakesink_class_init (GstFakeSinkClass *klass);
static void gst_fakesink_init (GstFakeSink *fakesink);
static void gst_fakesink_chain(GstPad *pad,GstBuffer *buf);
static void gst_fakesink_set_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_fakesink_get_arg (GtkObject *object, GtkArg *arg, guint id);
static void gst_fakesink_chain (GstPad *pad,GstBuffer *buf);
static GstElementClass *parent_class = NULL;
static guint gst_fakesink_signals[LAST_SIGNAL] = { 0 };
@ -83,6 +86,11 @@ gst_fakesink_class_init (GstFakeSinkClass *klass)
gtkobject_class = (GtkObjectClass*)klass;
parent_class = gtk_type_class (GST_TYPE_ELEMENT);
gtk_object_add_arg_type ("GstFakeSink::num_sources", GTK_TYPE_INT,
GTK_ARG_READWRITE, ARG_NUM_SOURCES);
gst_fakesink_signals[SIGNAL_HANDOFF] =
gtk_signal_new ("handoff", GTK_RUN_LAST, gtkobject_class->type,
GTK_SIGNAL_OFFSET (GstFakeSinkClass, handoff),
@ -91,20 +99,70 @@ gst_fakesink_class_init (GstFakeSinkClass *klass)
gtk_object_class_add_signals (gtkobject_class, gst_fakesink_signals,
LAST_SIGNAL);
parent_class = gtk_type_class (GST_TYPE_ELEMENT);
gtkobject_class->set_arg = gst_fakesink_set_arg;
gtkobject_class->get_arg = gst_fakesink_get_arg;
}
static void
gst_fakesink_init (GstFakeSink *fakesink)
{
fakesink->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (fakesink), fakesink->sinkpad);
gst_pad_set_chain_function (fakesink->sinkpad, gst_fakesink_chain);
GstPad *pad;
pad = gst_pad_new ("sink", GST_PAD_SINK);
gst_element_add_pad (GST_ELEMENT (fakesink), pad);
gst_pad_set_chain_function (pad, gst_fakesink_chain);
fakesink->sinkpads = g_slist_prepend (NULL, pad);
fakesink->numsinkpads = 1;
// we're ready right away, since we don't have any args...
// gst_element_set_state(GST_ELEMENT(fakesink),GST_STATE_READY);
}
static void
gst_fakesink_set_arg (GtkObject *object, GtkArg *arg, guint id)
{
GstFakeSink *sink;
gint new_numsinks;
GstPad *pad;
/* it's not null if we got it, but it might not be ours */
sink = GST_FAKESINK (object);
switch(id) {
case ARG_NUM_SOURCES:
new_numsinks = GTK_VALUE_INT (*arg);
while (sink->numsinkpads < new_numsinks) {
pad = gst_pad_new (g_strdup_printf ("sink%d", sink->numsinkpads), GST_PAD_SINK);
gst_pad_set_chain_function (pad, gst_fakesink_chain);
gst_element_add_pad (GST_ELEMENT (sink), pad);
sink->sinkpads = g_slist_append (sink->sinkpads, pad);
sink->numsinkpads++;
}
break;
default:
break;
}
}
static void
gst_fakesink_get_arg (GtkObject *object, GtkArg *arg, guint id)
{
GstFakeSink *sink;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_FAKESINK (object));
sink = GST_FAKESINK (object);
switch (id) {
case ARG_NUM_SOURCES:
GTK_VALUE_INT (*arg) = sink->numsinkpads;
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
/**
* gst_fakesink_chain:
* @pad: the pad this faksink is connected to

3
plugins/elements/gstfakesink.h
View file

@ -54,7 +54,8 @@ typedef struct _GstFakeSinkClass GstFakeSinkClass;
struct _GstFakeSink {
GstElement element;
GstPad *sinkpad;
GSList *sinkpads;
gint numsinkpads;
};
struct _GstFakeSinkClass {