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tracer: use GQuark or strings for the hook id

Browse source 
This way one can define new tracing probes without changing the core. We are
using our own quark table, as 1) we only want to initialize them if we're
tracing, 2) we want to share them with the tracers.
This commit is contained in:
Stefan Sauer 2014-09-15 22:27:11 +02:00
parent 1a3e218b89
commit 4881d1c16c
7 changed files with 161 additions and 126 deletions
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6
gst/gsttracer.h
View file

@ -64,8 +64,12 @@ struct _GstTracerClass {
GType gst_tracer_get_type (void);
void gst_tracer_register_hook (GstTracer *tracer, GstTracerHookId id,
void gst_tracer_register_hook (GstTracer *tracer, const gchar *detail,
GstTracerHookFunction func);
void gst_tracer_register_hook_id (GstTracer *tracer, GQuark detail,
GstTracerHookFunction func);
void gst_tracer_log_trace (GstStructure * s);
G_END_DECLS

87
gst/gsttracerutils.c
View file

@ -39,11 +39,23 @@
#ifndef GST_DISABLE_GST_DEBUG
/* tracer quarks */
/* These strings must match order and number declared in the GstTracerQuarkId
* enum in gsttracerutils.h! */
static const gchar *_quark_strings[] = {
"pad-push-pre", "pad-push-post", "pad-push-list-pre", "pad-push-list-post",
"pad-pull-range-pre", "pad-pull-range-post", "pad-push-event-pre",
"pad-push-event-post", "element-post-message-pre",
"element-post-message-post", "element-query-pre", "element-query-post"
};
GQuark _priv_gst_tracer_quark_table[GST_TRACER_QUARK_MAX];
/* tracing helpers */
gboolean _priv_tracer_enabled = FALSE;
/* TODO(ensonic): use array of GPtrArray* ? */
GList *_priv_tracers[GST_TRACER_HOOK_ID_LAST] = { NULL, };
GHashTable *_priv_tracers = NULL;
typedef struct
{
@ -67,6 +79,18 @@ _priv_gst_tracer_init (void)
GST_INFO ("enabling tracers: '%s'", env);
if (G_N_ELEMENTS (_quark_strings) != GST_TRACER_QUARK_MAX)
g_warning ("the quark table is not consistent! %d != %d",
(gint) G_N_ELEMENTS (_quark_strings), GST_TRACER_QUARK_MAX);
for (i = 0; i < GST_TRACER_QUARK_MAX; i++) {
_priv_gst_tracer_quark_table[i] =
g_quark_from_static_string (_quark_strings[i]);
}
_priv_tracers = g_hash_table_new (NULL, NULL);
i = 0;
while (t[i]) {
// check t[i] for params
if ((params = strchr (t[i], '('))) {
@ -106,45 +130,74 @@ _priv_gst_tracer_init (void)
void
_priv_gst_tracer_deinit (void)
{
gint i;
GList *node;
GList *h_list, *h_node, *t_node;
GstTracerHook *hook;
_priv_tracer_enabled = FALSE;
if (!_priv_tracers)
return;
/* shutdown tracers for final reports */
for (i = 0; i < GST_TRACER_HOOK_ID_LAST; i++) {
for (node = _priv_tracers[i]; node; node = g_list_next (node)) {
hook = (GstTracerHook *) node->data;
h_list = g_hash_table_get_values (_priv_tracers);
for (h_node = h_list; h_node; h_node = g_list_next (h_node)) {
for (t_node = h_node->data; t_node; t_node = g_list_next (t_node)) {
hook = (GstTracerHook *) t_node->data;
gst_object_unref (hook->tracer);
g_slice_free (GstTracerHook, hook);
}
g_list_free (_priv_tracers[i]);
_priv_tracers[i] = NULL;
g_list_free (h_node->data);
}
_priv_tracer_enabled = FALSE;
g_list_free (h_list);
g_hash_table_destroy (_priv_tracers);
_priv_tracers = NULL;
}
void
gst_tracer_register_hook (GstTracer * tracer, GstTracerHookId id,
gst_tracer_register_hook_id (GstTracer * tracer, GQuark detail,
GstTracerHookFunction func)
{
gpointer key = GINT_TO_POINTER (detail);
GList *list = g_hash_table_lookup (_priv_tracers, key);
GstTracerHook *hook = g_slice_new0 (GstTracerHook);
hook->tracer = gst_object_ref (tracer);
hook->func = func;
_priv_tracers[id] = g_list_prepend (_priv_tracers[id], hook);
GST_DEBUG_OBJECT (tracer, "added tracer to hook %d", id);
list = g_list_prepend (list, hook);
g_hash_table_replace (_priv_tracers, key, list);
GST_DEBUG ("registering tracer for '%s', list.len=%d",
(detail ? g_quark_to_string (detail) : "*"), g_list_length (list));
_priv_tracer_enabled = TRUE;
}
void
gst_tracer_dispatch (GstTracerHookId id, ...)
gst_tracer_register_hook (GstTracer * tracer, const gchar * detail,
GstTracerHookFunction func)
{
gst_tracer_register_hook_id (tracer, g_quark_try_string (detail), func);
}
void
gst_tracer_dispatch (GQuark detail, ...)
{
va_list var_args;
GList *node;
gpointer key = GINT_TO_POINTER (detail);
GList *list, *node;
GstTracerHook *hook;
for (node = _priv_tracers[id]; node; node = g_list_next (node)) {
list = g_hash_table_lookup (_priv_tracers, key);
GST_DEBUG ("calling %d tracers for '%s'", g_list_length (list),
g_quark_to_string (detail));
for (node = list; node; node = g_list_next (node)) {
hook = (GstTracerHook *) node->data;
va_start (var_args, id);
va_start (var_args, detail);
hook->func (hook->tracer, var_args);
va_end (var_args);
}
list = g_hash_table_lookup (_priv_tracers, NULL);
GST_DEBUG ("calling %d tracers for '*'", g_list_length (list));
for (node = list; node; node = g_list_next (node)) {
hook = (GstTracerHook *) node->data;
va_start (var_args, detail);
hook->func (hook->tracer, var_args);
va_end (var_args);
}

101
gst/gsttracerutils.h
View file

@ -32,25 +32,6 @@ G_BEGIN_DECLS
#ifndef GST_DISABLE_GST_DEBUG
/* tracer hook message ids */
typedef enum
{
GST_TRACER_HOOK_ID_PAD_PUSH_PRE = 0,
GST_TRACER_HOOK_ID_PAD_PUSH_POST,
GST_TRACER_HOOK_ID_PAD_PUSH_LIST_PRE,
GST_TRACER_HOOK_ID_PAD_PUSH_LIST_POST,
GST_TRACER_HOOK_ID_PAD_PULL_RANGE_PRE,
GST_TRACER_HOOK_ID_PAD_PULL_RANGE_POST,
GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_PRE,
GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_POST,
GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_PRE,
GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_POST,
GST_TRACER_HOOK_ID_ELEMENT_QUERY_PRE,
GST_TRACER_HOOK_ID_ELEMENT_QUERY_POST,
GST_TRACER_HOOK_ID_LAST
} GstTracerHookId;
/* tracing hooks */
void _priv_gst_tracer_init (void);
@ -62,17 +43,41 @@ gboolean gst_tracer_register (GstPlugin * plugin, const gchar * name, GType type
/* tracing helpers */
void gst_tracer_dispatch (GstTracerHookId id, ...);
void gst_tracer_dispatch (GQuark detail, ...);
/* tracer quarks */
/* These enums need to match the number and order
* of strings declared in _quark_table, in gsttracerutils.c */
typedef enum _GstTracerQuarkId
{
GST_TRACER_QUARK_HOOK_PAD_PUSH_PRE = 0,
GST_TRACER_QUARK_HOOK_PAD_PUSH_POST,
GST_TRACER_QUARK_HOOK_PAD_PUSH_LIST_PRE,
GST_TRACER_QUARK_HOOK_PAD_PUSH_LIST_POST,
GST_TRACER_QUARK_HOOK_PAD_PULL_RANGE_PRE,
GST_TRACER_QUARK_HOOK_PAD_PULL_RANGE_POST,
GST_TRACER_QUARK_HOOK_PAD_PUSH_EVENT_PRE ,
GST_TRACER_QUARK_HOOK_PAD_PUSH_EVENT_POST,
GST_TRACER_QUARK_HOOK_ELEMENT_POST_MESSAGE_PRE,
GST_TRACER_QUARK_HOOK_ELEMENT_POST_MESSAGE_POST,
GST_TRACER_QUARK_HOOK_ELEMENT_QUERY_PRE,
GST_TRACER_QUARK_HOOK_ELEMENT_QUERY_POST,
GST_TRACER_QUARK_MAX
} GstTracerQuarkId;
extern GQuark _priv_gst_tracer_quark_table[GST_TRACER_QUARK_MAX];
#define GST_TRACER_QUARK(q) _priv_gst_tracer_quark_table[GST_TRACER_QUARK_##q]
/* tracing module helpers */
void gst_tracer_log_trace (GstStructure * s);
extern gboolean _priv_tracer_enabled;
extern GList *_priv_tracers[GST_TRACER_HOOK_ID_LAST];
extern GHashTable *_priv_tracers;
#define GST_TRACER_IS_ENABLED(id) \
(_priv_tracer_enabled && (_priv_tracers[id] != NULL))
(_priv_tracer_enabled && \
(g_hash_table_contains (_priv_tracers, GINT_TO_POINTER(id))))
#define GST_TRACER_TS \
GST_CLOCK_DIFF (_priv_gst_info_start_time, gst_util_get_timestamp ())
@ -80,96 +85,96 @@ extern GList *_priv_tracers[GST_TRACER_HOOK_ID_LAST];
/* tracing hooks */
#define GST_TRACER_PAD_PUSH_PRE(pad, buffer) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PUSH_PRE)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PUSH_PRE, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PUSH_PRE))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PUSH_PRE), \
GST_TRACER_TS, \
pad, buffer); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PUSH_POST(pad, res) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PUSH_POST)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PUSH_POST, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PUSH_POST))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PUSH_POST), \
GST_TRACER_TS, \
pad, res); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PUSH_LIST_PRE(pad, list) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PUSH_LIST_PRE)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PUSH_LIST_PRE, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_PRE))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_PRE), \
GST_TRACER_TS, \
pad, list); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PUSH_LIST_POST(pad, res) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PUSH_LIST_POST)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PUSH_LIST_POST, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_POST))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PUSH_LIST_POST), \
GST_TRACER_TS, \
pad, res); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PULL_RANGE_PRE(pad, offset, size) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PULL_RANGE_PRE)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PULL_RANGE_PRE, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_PRE))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_PRE), \
GST_TRACER_TS, \
pad, offset, size); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PULL_RANGE_POST(pad, buffer, res) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PULL_RANGE_POST)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PULL_RANGE_POST, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_POST))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PULL_RANGE_POST), \
GST_TRACER_TS, \
pad, buffer, res); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PUSH_EVENT_PRE(pad, event) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_PRE)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_PRE, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_PRE))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_PRE), \
GST_TRACER_TS, \
pad, event); \
} \
}G_STMT_END
#define GST_TRACER_PAD_PUSH_EVENT_POST(pad, res) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_POST)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_POST, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_POST))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_PAD_PUSH_EVENT_POST), \
GST_TRACER_TS, \
pad, res); \
} \
}G_STMT_END
#define GST_TRACER_ELEMENT_POST_MESSAGE_PRE(element, message) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_PRE)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_PRE, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_PRE))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_PRE), \
GST_TRACER_TS, \
element, message); \
} \
}G_STMT_END
#define GST_TRACER_ELEMENT_POST_MESSAGE_POST(element, res) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_POST)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_POST, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_POST))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_ELEMENT_POST_MESSAGE_POST), \
GST_TRACER_TS, \
element, res); \
} \
}G_STMT_END
#define GST_TRACER_ELEMENT_QUERY_PRE(element, query) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_ELEMENT_QUERY_PRE)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_ELEMENT_QUERY_PRE, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_PRE))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_PRE), \
GST_TRACER_TS, \
element, query); \
} \
}G_STMT_END
#define GST_TRACER_ELEMENT_QUERY_POST(element, res) G_STMT_START{ \
if (GST_TRACER_IS_ENABLED(GST_TRACER_HOOK_ID_ELEMENT_QUERY_POST)) { \
gst_tracer_dispatch (GST_TRACER_HOOK_ID_ELEMENT_QUERY_POST, \
if (GST_TRACER_IS_ENABLED(GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_POST))) { \
gst_tracer_dispatch (GST_TRACER_QUARK(HOOK_ELEMENT_QUERY_POST), \
GST_TRACER_TS, \
element, res); \
} \

28
plugins/tracers/gstlatency.c
View file

@ -240,25 +240,11 @@ static void
gst_latency_tracer_init (GstLatencyTracer * self)
{
GstTracer *tracer = GST_TRACER (self);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_PRE,
do_push_buffer_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_LIST_PRE,
do_push_buffer_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_POST,
do_push_buffer_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_LIST_POST,
do_push_buffer_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PULL_RANGE_PRE,
do_pull_range_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PULL_RANGE_POST,
do_pull_range_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_PRE,
do_push_event_pre);
/*
- we should also replace GstTracerHookId with a 'detail' string like in
signals
- then we can attach to *all* hooks with 'null' as detail
gst_tracer_register_hook (self, gchar *detail, func);
gst_tracer_register_hook_id (self, GQuark detail, func);
*/
gst_tracer_register_hook (tracer, "pad-push-pre", do_push_buffer_pre);
gst_tracer_register_hook (tracer, "pad-push-list-pre", do_push_buffer_pre);
gst_tracer_register_hook (tracer, "pad-push-post", do_push_buffer_post);
gst_tracer_register_hook (tracer, "pad-push-list-post", do_push_buffer_post);
gst_tracer_register_hook (tracer, "pad-pull-range-pre", do_pull_range_pre);
gst_tracer_register_hook (tracer, "pad-pull-range-post", do_pull_range_post);
gst_tracer_register_hook (tracer, "pad-push-event-pre", do_push_event_pre);
}

34
plugins/tracers/gstlog.c
View file

@ -162,28 +162,20 @@ gst_log_tracer_init (GstLogTracer * self)
{
GstTracer *tracer = GST_TRACER (self);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_PRE,
do_push_buffer_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_POST,
do_push_buffer_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_LIST_PRE,
gst_tracer_register_hook (tracer, "pad-push-pre", do_push_buffer_pre);
gst_tracer_register_hook (tracer, "pad-push-post", do_push_buffer_post);
gst_tracer_register_hook (tracer, "pad-push-list-pre",
do_push_buffer_list_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_LIST_POST,
gst_tracer_register_hook (tracer, "pad-push-list-post",
do_push_buffer_list_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PULL_RANGE_PRE,
do_pull_range_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PULL_RANGE_POST,
do_pull_range_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_PRE,
do_push_event_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_POST,
do_push_event_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_PRE,
gst_tracer_register_hook (tracer, "pad-pull-range-pre", do_pull_range_pre);
gst_tracer_register_hook (tracer, "pad-pull-range-post", do_pull_range_post);
gst_tracer_register_hook (tracer, "pad-push-event-pre", do_push_event_pre);
gst_tracer_register_hook (tracer, "pad-push-event-post", do_push_event_post);
gst_tracer_register_hook (tracer, "element-post-message-pre",
do_post_message_pre);
gst_tracer_register_hook (tracer,
GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_POST, do_post_message_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_ELEMENT_QUERY_PRE,
do_query_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_ELEMENT_QUERY_POST,
do_query_post);
gst_tracer_register_hook (tracer, "element-post-message-post",
do_post_message_post);
gst_tracer_register_hook (tracer, "element-query-pre", do_query_pre);
gst_tracer_register_hook (tracer, "element-query-post", do_query_post);
}

5
plugins/tracers/gstrusage.c
View file

@ -340,11 +340,8 @@ static void
gst_rusage_tracer_init (GstRUsageTracer * self)
{
GstTracer *tracer = GST_TRACER (self);
gint i;
for (i = 0; i < GST_TRACER_HOOK_ID_LAST; i++) {
gst_tracer_register_hook (tracer, i, do_stats);
}
gst_tracer_register_hook_id (tracer, 0, do_stats);
self->threads = g_hash_table_new_full (NULL, NULL, NULL, free_thread_stats);

26
plugins/tracers/gststats.c
View file

@ -594,33 +594,31 @@ gst_stats_tracer_init (GstStatsTracer * self)
{
GstTracer *tracer = GST_TRACER (self);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_PRE,
gst_tracer_register_hook (tracer, "pad-push-pre",
(GstTracerHookFunction) do_push_buffer_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_POST,
gst_tracer_register_hook (tracer, "pad-push-post",
(GstTracerHookFunction) do_push_buffer_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_LIST_PRE,
gst_tracer_register_hook (tracer, "pad-push-list-pre",
(GstTracerHookFunction) do_push_buffer_list_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_LIST_POST,
gst_tracer_register_hook (tracer, "pad-push-list-post",
(GstTracerHookFunction) do_push_buffer_list_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PULL_RANGE_PRE,
gst_tracer_register_hook (tracer, "pad-pull-range-pre",
(GstTracerHookFunction) do_pull_range_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PULL_RANGE_POST,
gst_tracer_register_hook (tracer, "pad-pull-range-post",
(GstTracerHookFunction) do_pull_range_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_PRE,
gst_tracer_register_hook (tracer, "pad-push-event-pre",
(GstTracerHookFunction) do_push_event_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_PAD_PUSH_EVENT_POST,
gst_tracer_register_hook (tracer, "pad-push-event-post",
(GstTracerHookFunction) do_push_event_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_PRE,
gst_tracer_register_hook (tracer, "element-post-message-pre",
(GstTracerHookFunction) do_post_message_pre);
gst_tracer_register_hook (tracer,
GST_TRACER_HOOK_ID_ELEMENT_POST_MESSAGE_POST,
gst_tracer_register_hook (tracer, "element-post-message-post",
(GstTracerHookFunction) do_post_message_post);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_ELEMENT_QUERY_PRE,
gst_tracer_register_hook (tracer, "element-query-pre",
(GstTracerHookFunction) do_query_pre);
gst_tracer_register_hook (tracer, GST_TRACER_HOOK_ID_ELEMENT_QUERY_POST,
gst_tracer_register_hook (tracer, "element-query-post",
(GstTracerHookFunction) do_query_post);
self->elements = g_ptr_array_new_with_free_func (free_element_stats);
self->pads = g_ptr_array_new_with_free_func (free_pad_stats);
}