mirror of https://github.com/sipwise/rtpengine.git
Introduce generic "objects" with reference counting primitives and automatic
resource deallocation when no refs are left ("garbage collection"). Overhaul
poller framework to make extensive use of these objects to allow for future
thread-concurrent operation.
No locking added anywhere yet except in poller. Poller is still not 100%
thread safe, but close.
Valgrind reports no errors or memleaks.
git.mgm/mediaproxy-ng/2.1
Richard Fuchs
13 years ago
parent
5d1410c61a
commit
145bbd1f7c
@ -0,0 +1,157 @@
|
||||
#ifndef _OBJ_H_
|
||||
#define _OBJ_H_
|
||||
|
||||
|
||||
|
||||
#include <glib.h>
|
||||
#include <sys/types.h>
|
||||
#include <string.h>
|
||||
#include <assert.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "log.h"
|
||||
|
||||
|
||||
|
||||
|
||||
#define OBJ_DEBUG 1
|
||||
|
||||
|
||||
|
||||
|
||||
struct obj {
|
||||
#if OBJ_DEBUG
|
||||
u_int32_t magic;
|
||||
char *type;
|
||||
#endif
|
||||
volatile gint ref;
|
||||
void (*free_func)(void *);
|
||||
unsigned int size;
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
#if OBJ_DEBUG
|
||||
|
||||
#define OBJ_MAGIC 0xf1eef1ee
|
||||
|
||||
#define obj_alloc(t,a,b) __obj_alloc(a,b,t,__FILE__,__LINE__)
|
||||
#define obj_alloc0(t,a,b) __obj_alloc0(a,b,t,__FILE__,__LINE__)
|
||||
#define obj_hold(a) __obj_hold(a,__FILE__,__LINE__)
|
||||
#define obj_get(a) __obj_get(a,__FILE__,__LINE__)
|
||||
#define obj_put(a) __obj_put(a,__FILE__,__LINE__)
|
||||
|
||||
#else
|
||||
|
||||
#define obj_alloc(t,a,b) __obj_alloc(a,b)
|
||||
#define obj_alloc0(t,a,b) __obj_alloc0(a,b)
|
||||
#define obj_hold(a) __obj_hold(a)
|
||||
#define obj_get(a) __obj_get(a)
|
||||
#define obj_put(a) __obj_put(a)
|
||||
|
||||
#endif
|
||||
|
||||
static inline void __obj_init(struct obj *o, unsigned int size, void (*free_func)(void *)
|
||||
#if OBJ_DEBUG
|
||||
, const char *type, const char *file, unsigned int line
|
||||
#endif
|
||||
) {
|
||||
#if OBJ_DEBUG
|
||||
o->magic = OBJ_MAGIC;
|
||||
o->type = strdup(type);
|
||||
mylog(LOG_DEBUG, "obj_allocX(\"%s\", size %u) -> %p [%s:%u]", type, size, o, file, line);
|
||||
#endif
|
||||
o->ref = 1;
|
||||
o->free_func = free_func;
|
||||
o->size = size;
|
||||
}
|
||||
|
||||
static inline void *__obj_alloc(unsigned int size, void (*free_func)(void *)
|
||||
#if OBJ_DEBUG
|
||||
, const char *type, const char *file, unsigned int line
|
||||
#endif
|
||||
) {
|
||||
struct obj *r;
|
||||
|
||||
r = g_slice_alloc(size);
|
||||
__obj_init(r, size, free_func
|
||||
#if OBJ_DEBUG
|
||||
, type, file, line
|
||||
#endif
|
||||
);
|
||||
return r;
|
||||
}
|
||||
|
||||
static inline void *__obj_alloc0(unsigned int size, void (*free_func)(void *)
|
||||
#if OBJ_DEBUG
|
||||
, const char *type, const char *file, unsigned int line
|
||||
#endif
|
||||
) {
|
||||
struct obj *r;
|
||||
|
||||
r = g_slice_alloc0(size);
|
||||
__obj_init(r, size, free_func
|
||||
#if OBJ_DEBUG
|
||||
, type, file, line
|
||||
#endif
|
||||
);
|
||||
return r;
|
||||
}
|
||||
|
||||
static inline struct obj *__obj_hold(struct obj *o
|
||||
#if OBJ_DEBUG
|
||||
, const char *file, unsigned int line
|
||||
#endif
|
||||
) {
|
||||
#if OBJ_DEBUG
|
||||
assert(o->magic == OBJ_MAGIC);
|
||||
mylog(LOG_DEBUG, "obj_hold(%p, \"%s\", size %u), refcnt before %u [%s:%u]",
|
||||
o, o->type, o->size, g_atomic_int_get(&o->ref), file, line);
|
||||
#endif
|
||||
g_atomic_int_inc(&o->ref);
|
||||
#if OBJ_DEBUG
|
||||
mylog(LOG_DEBUG, "obj_hold(%p, \"%s\", size %u), refcnt after %u [%s:%u]",
|
||||
o, o->type, o->size, g_atomic_int_get(&o->ref), file, line);
|
||||
#endif
|
||||
return o;
|
||||
}
|
||||
|
||||
static inline void *__obj_get(struct obj *o
|
||||
#if OBJ_DEBUG
|
||||
, const char *file, unsigned int line
|
||||
#endif
|
||||
) {
|
||||
return __obj_hold(o
|
||||
#if OBJ_DEBUG
|
||||
, file, line
|
||||
#endif
|
||||
);
|
||||
}
|
||||
|
||||
static inline void __obj_put(struct obj *o
|
||||
#if OBJ_DEBUG
|
||||
, const char *file, unsigned int line
|
||||
#endif
|
||||
) {
|
||||
#if OBJ_DEBUG
|
||||
assert(o->magic == OBJ_MAGIC);
|
||||
mylog(LOG_DEBUG, "obj_put(%p, \"%s\", size %u), refcnt before %u [%s:%u]",
|
||||
o, o->type, o->size, g_atomic_int_get(&o->ref), file, line);
|
||||
#endif
|
||||
if (!g_atomic_int_dec_and_test(&o->ref))
|
||||
return;
|
||||
#if OBJ_DEBUG
|
||||
mylog(LOG_DEBUG, "obj_put(%p, \"%s\", size %u), refcnt after %u [%s:%u]",
|
||||
o, o->type, o->size, g_atomic_int_get(&o->ref), file, line);
|
||||
free(o->type);
|
||||
#endif
|
||||
if (o->free_func)
|
||||
o->free_func(o);
|
||||
g_slice_free1(o->size, o);
|
||||
}
|
||||
|
||||
|
||||
|
||||
#endif
|
||||
Loading…
Reference in new issue