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cogl-debug: add instrumentation to track the number of objects

Browse Source 
This allows to track the number of objects allocated by Cogl. The
results are displayed on the standard output by calling :

cogl_debug_print_instances ();

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@linux.intel.com>
Signed-off-by: Neil Roberts <neil@linux.intel.com>
This commit is contained in:
Lionel Landwerlin 2011-06-10 18:44:09 +01:00 committed by Neil Roberts
parent c603dc67ca
commit 5dc42284a5
5 changed files with 185 additions and 45 deletions
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1
cogl/cogl-debug.c
View File

@ -84,6 +84,7 @@ static const int n_cogl_behavioural_debug_keys =
G_N_ELEMENTS (cogl_behavioural_debug_keys);
unsigned int _cogl_debug_flags[COGL_DEBUG_N_INTS];
GHashTable *_cogl_debug_instances;
static void
_cogl_parse_debug_string_for_keys (const char *value,

1
cogl/cogl-debug.h
View File

@ -75,6 +75,7 @@ typedef enum {
#define COGL_DEBUG_N_INTS COGL_FLAGS_N_INTS_FOR_SIZE (COGL_DEBUG_N_FLAGS)
extern unsigned int _cogl_debug_flags[COGL_DEBUG_N_INTS];
extern GHashTable *_cogl_debug_instances;
#define COGL_DEBUG_ENABLED(flag) \
COGL_FLAGS_GET (_cogl_debug_flags, flag)

37
cogl/cogl-object-private.h
View File

@ -126,6 +126,26 @@ struct _CoglObject
#define COGL_OBJECT_COMMON_DEFINE_WITH_CODE(TypeName, type_name, code) \
\
static CoglObjectClass _cogl_##type_name##_class; \
static unsigned long _cogl_object_##type_name##_count; \
\
static inline void \
_cogl_object_##type_name##_inc (void) \
{ \
_cogl_object_##type_name##_count++; \
} \
\
static inline void \
_cogl_object_##type_name##_dec (void) \
{ \
_cogl_object_##type_name##_count--; \
} \
\
static void \
_cogl_object_##type_name##_indirect_free (CoglObject *obj) \
{ \
_cogl_##type_name##_free ((Cogl##TypeName *) obj); \
_cogl_object_##type_name##_dec (); \
} \
\
GQuark \
_cogl_object_##type_name##_get_type (void) \
@ -134,6 +154,16 @@ _cogl_object_##type_name##_get_type (void) \
if (!type) \
{ \
type = g_quark_from_static_string ("Cogl"#TypeName); \
_cogl_object_##type_name##_count = 0; \
\
if (_cogl_debug_instances == NULL) \
_cogl_debug_instances = \
g_hash_table_new (g_str_hash, g_str_equal); \
\
g_hash_table_insert (_cogl_debug_instances, \
"Cogl"#TypeName, \
&_cogl_object_##type_name##_count); \
\
{ code; } \
} \
return type; \
@ -149,7 +179,8 @@ static Cogl##TypeName * \
_cogl_##type_name##_object_new (Cogl##TypeName *new_obj) \
{ \
CoglObject *obj = (CoglObject *)&new_obj->_parent; \
obj->ref_count = 1; \
obj->ref_count = 0; \
cogl_object_ref (obj); \
obj->n_user_data_entries = 0; \
obj->user_data_array = NULL; \
\
@ -157,9 +188,11 @@ _cogl_##type_name##_object_new (Cogl##TypeName *new_obj) \
if (!obj->klass->type) \
{ \
obj->klass->type = _cogl_object_##type_name##_get_type (); \
obj->klass->virt_free = _cogl_##type_name##_free; \
obj->klass->virt_free = \
_cogl_object_##type_name##_indirect_free; \
} \
\
_cogl_object_##type_name##_inc (); \
_COGL_OBJECT_DEBUG_NEW (TypeName, obj); \
return new_obj; \
} \

32
cogl/cogl-object.c
View File

@ -247,3 +247,35 @@ cogl_object_get_user_data (CoglObject *object, CoglUserDataKey *key)
return NULL;
}
void
cogl_debug_object_foreach_type (CoglDebugObjectForeachTypeCallback func,
void *user_data)
{
GHashTableIter iter;
unsigned long *instance_count;
CoglDebugObjectTypeInfo info;
g_hash_table_iter_init (&iter, _cogl_debug_instances);
while (g_hash_table_iter_next (&iter,
(void *) &info.name,
(void *) &instance_count))
{
info.instance_count = *instance_count;
func (&info, user_data);
}
}
static void
print_instances_cb (const CoglDebugObjectTypeInfo *info,
void *user_data)
{
g_print ("\t%s: %lu\n", info->name, info->instance_count);
}
void
cogl_debug_object_print_instances (void)
{
g_print ("Cogl instances:\n");
cogl_debug_object_foreach_type (print_instances_cb, NULL);
}

73
cogl/cogl-object.h
View File

@ -81,6 +81,37 @@ typedef struct
*/
typedef void (*CoglUserDataDestroyCallback) (void *user_data);
/**
* CoglDebugObjectTypeInfo:
* @name: A human readable name for the type.
* @instance_count: The number of objects of this type that are
* currently in use
*
* This struct is used to pass information to the callback when
* cogl_debug_object_foreach_type() is called.
*
* Since: 1.8
* Stability: unstable
*/
typedef struct
{
const char *name;
unsigned long instance_count;
} CoglDebugObjectTypeInfo;
/**
* CoglDebugObjectForeachTypeCallback:
* @info: A pointer to a struct containing information about the type.
*
* A callback function to use for cogl_debug_object_foreach_type().
*
* Since: 1.8
* Stability: unstable
*/
typedef void
(* CoglDebugObjectForeachTypeCallback) (const CoglDebugObjectTypeInfo *info,
void *user_data);
/**
* cogl_object_set_user_data: (skip)
* @object: The object to associate private data with
@ -123,5 +154,47 @@ cogl_object_set_user_data (CoglObject *object,
void *
cogl_object_get_user_data (CoglObject *object,
CoglUserDataKey *key);
#ifdef COGL_ENABLE_EXPERIMENTAL_API
#define cogl_debug_object_foreach_type \
cogl_debug_object_foreach_type_EXP
/**
* cogl_debug_object_foreach_type:
* func: A callback function for each type
* user_data: A pointer to pass to @func
*
* Invokes @func once for each type of object that Cogl uses and
* passes a count of the number of objects for that type. This is
* intended to be used solely for debugging purposes to track down
* issues with objects leaking.
*
* Since: 1.8
* Stability: unstable
*/
void
cogl_debug_object_foreach_type (CoglDebugObjectForeachTypeCallback func,
void *user_data);
#define cogl_debug_object_print_instances \
cogl_debug_object_print_instances_EXP
/**
* cogl_debug_object_print_instances:
*
* Prints a list of all the object types that Cogl uses along with the
* number of objects of that type that are currently in use. This is
* intended to be used solely for debugging purposes to track down
* issues with objects leaking.
*
* Since: 1.8
* Stability: unstable
*/
void
cogl_debug_object_print_instances (void);
#endif /* COGL_ENABLE_EXPERIMENTAL_API */
#endif /* __COGL_OBJECT_H */