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leaks: Allow passing a GstStructure to configure the tracer

Browse source 
But keep understanding the simple synthax with a comma separated
list of filters

https://bugzilla.gnome.org/show_bug.cgi?id=775541
This commit is contained in:
Thibault Saunier 2016-11-30 17:05:56 -03:00 committed by Thibault Saunier
parent e64765c0d8
commit 32b17a8f3d
1 changed files with 63 additions and 23 deletions
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86
plugins/tracers/gstleaks.c
View file

@ -25,7 +25,7 @@
* A tracing module tracking the lifetime of objects by logging those still
* alive when program is exiting and raising a warning.
* The type of objects tracked can be filtered using the parameters of the
* tracer, for example: GST_TRACERS="leaks(GstEvent,GstMessage)"
* tracer, for example: GST_TRACERS=leaks(filters="GstEvent,GstMessage",print-traces=true)
*/
#ifdef HAVE_CONFIG_H
@ -55,17 +55,34 @@ static GstTracerRecord *tr_removed = NULL;
static GQueue instances = G_QUEUE_INIT;
static void
set_filtering (GstLeaksTracer * self)
set_print_stack_trace (GstLeaksTracer * self, GstStructure * params)
{
gchar *params;
GStrv tmp;
guint i;
gchar *trace;
gboolean check_stack_trace =
g_getenv ("GST_LEAKS_TRACER_STACK_TRACE") != NULL;
g_object_get (self, "params", &params, NULL);
if (!params)
if (!check_stack_trace && params)
gst_structure_get_boolean (params, "print-traces", &check_stack_trace);
if (!check_stack_trace)
return;
tmp = g_strsplit (params, ",", -1);
/* Test if we can retrieve backtrace */
trace = gst_debug_get_stack_trace (0);
if (trace) {
self->log_stack_trace = TRUE;
g_free (trace);
} else {
g_warning ("Can't retrieve backtrace on this system");
}
}
static void
set_filters (GstLeaksTracer * self, const gchar * filters)
{
guint i;
GStrv tmp = g_strsplit (filters, ",", -1);
self->filter = g_array_sized_new (FALSE, FALSE, sizeof (GType),
g_strv_length (tmp));
@ -94,7 +111,43 @@ set_filtering (GstLeaksTracer * self)
}
g_strfreev (tmp);
}
static void
set_params_from_structure (GstLeaksTracer * self, GstStructure * params)
{
const gchar *filters = gst_structure_get_string (params, "filters");
if (filters)
set_filters (self, filters);
}
static void
set_params (GstLeaksTracer * self)
{
gchar *params, *tmp;
GstStructure *params_struct = NULL;
g_object_get (self, "params", &params, NULL);
if (!params)
goto set_stacktrace;
tmp = g_strdup_printf ("leaks,%s", params);
params_struct = gst_structure_from_string (tmp, NULL);
g_free (tmp);
if (params_struct)
set_params_from_structure (self, params_struct);
else
set_filters (self, params);
g_free (params);
set_stacktrace:
set_print_stack_trace (self, params_struct);
if (params_struct)
gst_structure_free (params_struct);
}
static gboolean
@ -221,7 +274,7 @@ handle_object_created (GstLeaksTracer * self, gpointer object, GType type,
GST_OBJECT_LOCK (self);
if (self->log_stack_trace) {
trace = gst_debug_get_stack_trace (GST_STACK_TRACE_SHOW_FULL);
trace = gst_debug_get_stack_trace (0);
}
g_hash_table_insert (self->objects, object, trace);
@ -260,19 +313,6 @@ gst_leaks_tracer_init (GstLeaksTracer * self)
{
self->objects = g_hash_table_new_full (NULL, NULL, NULL, g_free);
if (g_getenv ("GST_LEAKS_TRACER_STACK_TRACE")) {
gchar *trace;
/* Test if we can retrieve backtrace */
trace = gst_debug_get_stack_trace (GST_STACK_TRACE_SHOW_FULL);
if (trace) {
self->log_stack_trace = TRUE;
g_free (trace);
} else {
g_warning ("Can't retrieve backtrace on this system");
}
}
g_queue_push_tail (&instances, self);
}
@ -282,7 +322,7 @@ gst_leaks_tracer_constructed (GObject * object)
GstLeaksTracer *self = GST_LEAKS_TRACER (object);
GstTracer *tracer = GST_TRACER (object);
set_filtering (self);
set_params (self);
gst_tracing_register_hook (tracer, "mini-object-created",
G_CALLBACK (mini_object_created_cb));