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tracerrecord: don't leak the spec structures

Browse source 
Change the gst_tracer_record_new() api to take the parameters the make the
spec structure directly. This allows us to own the top-level structure and
also collect the args so that we can take ownership of the sub-structures.

https://bugzilla.gnome.org/show_bug.cgi?id=760821
This commit is contained in:
Stefan Sauer 2016-01-21 08:12:01 +01:00
parent 05a9655523
commit ec75b68984
6 changed files with 90 additions and 92 deletions
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129
gst/gsttracerrecord.c
View file

@ -37,20 +37,11 @@
#include "gststructure.h"
#include "gsttracerrecord.h"
#include "gstvalue.h"
#include <gobject/gvaluecollector.h>
GST_DEBUG_CATEGORY_EXTERN (tracer_debug);
#define GST_CAT_DEFAULT tracer_debug
enum
{
PROP_0,
PROP_SPEC,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
struct _GstTracerRecord
{
GstObject parent;
@ -77,7 +68,11 @@ build_field_template (GQuark field_id, const GValue * value, gpointer user_data)
GstTracerValueFlags flags = GST_TRACER_VALUE_FLAGS_NONE;
gboolean res;
g_return_val_if_fail (G_VALUE_TYPE (value) == GST_TYPE_STRUCTURE, FALSE);
if (G_VALUE_TYPE (value) != GST_TYPE_STRUCTURE) {
GST_WARNING ("expected field of type GstStructure, but %s is %s",
g_quark_to_string (field_id), G_VALUE_TYPE_NAME (value));
return FALSE;
}
sub = gst_value_get_structure (value);
gst_structure_get (sub, "type", G_TYPE_GTYPE, &type, "flags",
@ -125,7 +120,7 @@ gst_tracer_record_build_format (GstTracerRecord * self)
g_string_append_c (s, ';');
self->format = g_string_free (s, FALSE);
GST_INFO ("new format string: %s", self->format);
GST_DEBUG ("new format string: %s", self->format);
g_free (name);
}
@ -134,41 +129,12 @@ gst_tracer_record_dispose (GObject * object)
{
GstTracerRecord *self = GST_TRACER_RECORD (object);
if (self->spec) {
gst_structure_free (self->spec);
self->spec = NULL;
}
g_free (self->format);
}
static void
gst_tracer_record_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstTracerRecord *self = GST_TRACER_RECORD_CAST (object);
switch (prop_id) {
case PROP_SPEC:
self->spec = g_value_get_boxed (value);
gst_tracer_record_build_format (self);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_tracer_record_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstTracerRecord *self = GST_TRACER_RECORD_CAST (object);
switch (prop_id) {
case PROP_SPEC:
// TODO(ensonic): copy?
g_value_set_boxed (value, self->spec);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
self->format = NULL;
}
static void
@ -176,16 +142,7 @@ gst_tracer_record_class_init (GstTracerRecordClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->set_property = gst_tracer_record_set_property;
gobject_class->get_property = gst_tracer_record_get_property;
gobject_class->dispose = gst_tracer_record_dispose;
properties[PROP_SPEC] =
g_param_spec_boxed ("spec", "Spec", "Log record specification",
GST_TYPE_STRUCTURE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (gobject_class, PROP_LAST, properties);
}
static void
@ -195,17 +152,20 @@ gst_tracer_record_init (GstTracerRecord * self)
/**
* gst_tracer_record_new:
* @spec: the record specification
* @name: name of new record, must end on ".class".
* @firstfield: name of first field to set
* @...: additional arguments
*
* Create a new tracer record. The record instance can be used to efficiently
* log entries using gst_tracer_record_log().
*
* The name of the @spec #GstStructure must end on '.class'. This name without
* the suffix will be used for the log records. The @spec must have a field for
* each value that gets logged where the field name is the value name. The field
* must be a nested structure describing the value. The sub structure must
* contain a field called 'type' of %G_TYPE_GTYPE that contains the GType of the
* value.
* The @name without the ".class" suffix will be used for the log records.
* There must be fields for each value that gets logged where the field name is
* the value name. The field must be a #GstStructure describing the value. The
* sub structure must contain a field called 'type' of %G_TYPE_GTYPE that
* contains the GType of the value. The resulting #GstTracerRecord will take
* ownership of the field structures.
*
* The way to deal with optional values is to log an additional boolean before
* the optional field, that if %TRUE signals that the optional field is valid
@ -221,9 +181,50 @@ gst_tracer_record_init (GstTracerRecord * self)
* Returns: a new #GstTracerRecord
*/
GstTracerRecord *
gst_tracer_record_new (GstStructure * spec)
gst_tracer_record_new (const gchar * name, const gchar * firstfield, ...)
{
return g_object_new (GST_TYPE_TRACER_RECORD, "spec", spec, NULL);
GstTracerRecord *self;
GstStructure *structure;
va_list varargs;
va_start (varargs, firstfield);
structure = gst_structure_new_empty (name);
if (structure) {
gchar *err = NULL;
GType type;
GQuark id;
while (firstfield) {
GValue val = { 0, };
id = g_quark_from_string (firstfield);
type = va_arg (varargs, GType);
/* all fields passed here must be GstStructures which we take over */
if (type != GST_TYPE_STRUCTURE) {
GST_WARNING ("expected field of type GstStructure, but %s is %s",
firstfield, g_type_name (type));
}
G_VALUE_COLLECT_INIT (&val, type, varargs, G_VALUE_NOCOPY_CONTENTS, &err);
if (G_UNLIKELY (err)) {
g_critical ("%s", err);
break;
}
/* see boxed_proxy_collect_value */
val.data[1].v_uint &= ~G_VALUE_NOCOPY_CONTENTS;
gst_structure_id_take_value (structure, id, &val);
firstfield = va_arg (varargs, gchar *);
}
}
va_end (varargs);
self = g_object_newv (GST_TYPE_TRACER_RECORD, 0, NULL);
self->spec = structure;
gst_tracer_record_build_format (self);
return self;
}
#ifndef GST_DISABLE_GST_DEBUG

2
gst/gsttracerrecord.h
View file

@ -87,7 +87,7 @@ typedef enum
#ifdef GST_USE_UNSTABLE_API
GstTracerRecord * gst_tracer_record_new (GstStructure *spec);
GstTracerRecord * gst_tracer_record_new (const gchar * name, const gchar * firstfield, ...);
#ifndef GST_DISABLE_GST_DEBUG
void gst_tracer_record_log (GstTracerRecord *self, ...);

4
plugins/tracers/gstlatency.c
View file

@ -203,7 +203,7 @@ gst_latency_tracer_class_init (GstLatencyTracerClass * klass)
/* announce trace formats */
/* *INDENT-OFF* */
tr_latency = gst_tracer_record_new (gst_structure_new ("latency.class",
tr_latency = gst_tracer_record_new ("latency.class",
"src", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_STRING,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_PAD,
@ -220,7 +220,7 @@ gst_latency_tracer_class_init (GstLatencyTracerClass * klass)
"min", G_TYPE_UINT64, G_GUINT64_CONSTANT (0),
"max", G_TYPE_UINT64, G_MAXUINT64,
NULL),
NULL));
NULL);
/* *INDENT-ON* */
}

8
plugins/tracers/gstrusage.c
View file

@ -284,7 +284,7 @@ gst_rusage_tracer_class_init (GstRUsageTracerClass * klass)
/* announce trace formats */
/* *INDENT-OFF* */
tr_thread = gst_tracer_record_new (gst_structure_new ("thread-rusage.class",
tr_thread = gst_tracer_record_new ("thread-rusage.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -313,8 +313,8 @@ gst_rusage_tracer_class_init (GstRUsageTracerClass * klass)
"min", G_TYPE_UINT64, G_GUINT64_CONSTANT (0),
"max", G_TYPE_UINT64, G_MAXUINT64,
NULL),
NULL));
tr_proc = gst_tracer_record_new (gst_structure_new ("proc-rusage.class",
NULL);
tr_proc = gst_tracer_record_new ("proc-rusage.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_PROCESS,
@ -343,7 +343,7 @@ gst_rusage_tracer_class_init (GstRUsageTracerClass * klass)
"min", G_TYPE_UINT64, G_GUINT64_CONSTANT (0),
"max", G_TYPE_UINT64, G_MAXUINT64,
NULL),
NULL));
NULL);
/* *INDENT-ON* */
}

31
plugins/tracers/gststats.c
View file

@ -518,7 +518,7 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
{
/* announce trace formats */
/* *INDENT-OFF* */
tr_buffer = gst_tracer_record_new (gst_structure_new ("buffer.class",
tr_buffer = gst_tracer_record_new ("buffer.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -571,8 +571,8 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"type", G_TYPE_GTYPE, GST_TYPE_BUFFER_FLAGS,
"description", G_TYPE_STRING, "flags of the buffer",
NULL),
NULL));
tr_event = gst_tracer_record_new (gst_structure_new ("event.class",
NULL);
tr_event = gst_tracer_record_new ("event.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -593,8 +593,8 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"type", G_TYPE_GTYPE, G_TYPE_STRING,
"description", G_TYPE_STRING, "name of the event",
NULL),
NULL));
tr_message = gst_tracer_record_new (gst_structure_new ("message.class",
NULL);
tr_message = gst_tracer_record_new ("message.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -615,9 +615,8 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"type", G_TYPE_GTYPE, GST_TYPE_STRUCTURE,
"description", G_TYPE_STRING, "message structure",
NULL),
NULL));
tr_element_query = gst_tracer_record_new (gst_structure_new (
"element-query.class",
NULL);
tr_element_query = gst_tracer_record_new ("element-query.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -634,8 +633,8 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"type", G_TYPE_GTYPE, G_TYPE_STRING,
"description", G_TYPE_STRING, "name of the query",
NULL),
NULL));
tr_query = gst_tracer_record_new (gst_structure_new ("query.class",
NULL);
tr_query = gst_tracer_record_new ("query.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -673,10 +672,8 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"description", G_TYPE_STRING, "query result",
"flags", GST_TYPE_TRACER_VALUE_FLAGS, GST_TRACER_VALUE_FLAGS_OPTIONAL,
NULL),
/* TODO(ensonic): "buffer-flags" */
NULL));
tr_new_element = gst_tracer_record_new (gst_structure_new (
"new-element.class",
NULL);
tr_new_element = gst_tracer_record_new ("new-element.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -705,8 +702,8 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"type", G_TYPE_GTYPE, G_TYPE_BOOLEAN,
"description", G_TYPE_STRING, "is element a bin",
NULL),
NULL));
tr_new_pad = gst_tracer_record_new (gst_structure_new ("new-pad.class",
NULL);
tr_new_pad = gst_tracer_record_new ("new-pad.class",
"thread-id", GST_TYPE_STRUCTURE, gst_structure_new ("scope",
"type", G_TYPE_GTYPE, G_TYPE_UINT64,
"related-to", GST_TYPE_TRACER_VALUE_SCOPE, GST_TRACER_VALUE_SCOPE_THREAD,
@ -735,7 +732,7 @@ gst_stats_tracer_class_init (GstStatsTracerClass * klass)
"type", G_TYPE_GTYPE, GST_TYPE_PAD_DIRECTION,
"description", G_TYPE_STRING, "ipad direction",
NULL),
NULL));
NULL);
/* *INDENT-ON* */
}

8
tests/check/gst/gsttracerrecord.c
View file

@ -72,11 +72,11 @@ GST_START_TEST (serialize_message_logging)
gchar *str;
/* *INDENT-OFF* */
tr = gst_tracer_record_new (gst_structure_new ("test.class",
tr = gst_tracer_record_new ("test.class",
"string", GST_TYPE_STRUCTURE, gst_structure_new ("value",
"type", G_TYPE_GTYPE, G_TYPE_STRING,
NULL),
NULL));
NULL);
/* *INDENT-ON* */
save_messages = TRUE;
@ -104,7 +104,7 @@ GST_START_TEST (serialize_static_record)
GstPadDirection enum_val;
/* *INDENT-OFF* */
tr = gst_tracer_record_new (gst_structure_new ("test.class",
tr = gst_tracer_record_new ("test.class",
"string", GST_TYPE_STRUCTURE, gst_structure_new ("value",
"type", G_TYPE_GTYPE, G_TYPE_STRING,
NULL),
@ -117,7 +117,7 @@ GST_START_TEST (serialize_static_record)
"enum", GST_TYPE_STRUCTURE, gst_structure_new ("value",
"type", G_TYPE_GTYPE, GST_TYPE_PAD_DIRECTION,
NULL),
NULL));
NULL);
/* *INDENT-ON* */
save_messages = TRUE;