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#ifndef _OBJ_H_
#define _OBJ_H_
#include <glib.h>
#include <sys/types.h>
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <stdint.h>
#include "compat.h"
#if 0 && defined(__DEBUG)
#define OBJ_DEBUG 1
#else
#define OBJ_DEBUG 0
#endif
#if OBJ_DEBUG
#define OBJ_BACKTRACE 1
#else
#define OBJ_BACKTRACE 0
#endif
#if OBJ_BACKTRACE
#include <execinfo.h>
#endif
struct obj {
#if OBJ_DEBUG
uint32_t magic;
char *type;
#endif
volatile gint ref;
void (*free_func)(void *);
size_t size;
};
#if OBJ_DEBUG
#define OBJ_MAGIC 0xf1eef1ee
#define obj_alloc(t,f) ({ \
void (*__ff)(t *) = (f); \
void *__r = __obj_alloc(sizeof(t), (void (*)(void *)) __ff, #t, __FILE__, __func__, __LINE__); \
(t *) __r; \
})
#define obj_alloc0(t,f) ({ \
void (*__ff)(t *) = (f); \
void *__r = __obj_alloc0(sizeof(t), (void (*)(void *)) __ff, #t, __FILE__, __func__, __LINE__); \
(t *) __r; \
})
#define obj_alloc0_gen(t,a,b) __obj_alloc0(a,b,t,__FILE__,__func__,__LINE__)
#define obj_hold(a) __obj_hold(&(a)->obj,__FILE__,__func__,__LINE__)
#define obj_get(a) ((__typeof__(a)) (__obj_get(&(a)->obj,__FILE__,__func__,__LINE__)))
#define obj_put(a) __obj_put(&(a)->obj,__FILE__,__func__,__LINE__)
#define obj_hold_o(a) __obj_hold(a,__FILE__,__func__,__LINE__)
#define obj_get_o(a) __obj_get(a,__FILE__,__func__,__LINE__)
#define obj_put_o(a) __obj_put(a,__FILE__,__func__,__LINE__)
INLINE void __obj_init(struct obj *o, size_t size, void (*free_func)(void *),
const char *type, const char *file, const char *func, unsigned int line);
INLINE void *__obj_alloc(size_t size, void (*free_func)(void *),
const char *type, const char *file, const char *func, unsigned int line);
INLINE void *__obj_alloc0(size_t size, void (*free_func)(void *),
const char *type, const char *file, const char *func, unsigned int line);
INLINE struct obj *__obj_hold(struct obj *o,
const char *file, const char *func, unsigned int line);
INLINE void *__obj_get(struct obj *o,
const char *file, const char *func, unsigned int line);
INLINE void __obj_put(struct obj *o,
const char *file, const char *func, unsigned int line);
#else
#define obj_alloc(t,f) ({ \
void (*__ff)(t *) = (f); \
void *__r = __obj_alloc(sizeof(t), (void (*)(void *)) __ff); \
(t *) __r; \
})
#define obj_alloc0(t,f) ({ \
void (*__ff)(t *) = (f); \
void *__r = __obj_alloc0(sizeof(t), (void (*)(void *)) __ff); \
(t *) __r; \
})
#define obj_alloc0_gen(t,a,b) __obj_alloc0(a,b)
#define obj_hold(a) __obj_hold(&(a)->obj)
#define obj_get(a) ((__typeof__(a)) (__obj_get(&(a)->obj)))
#define obj_put(a) __obj_put(&(a)->obj)
#define obj_hold_o(a) __obj_hold(a)
#define obj_get_o(a) __obj_get(a)
#define obj_put_o(a) __obj_put(a)
INLINE void __obj_init(struct obj *o, size_t size, void (*free_func)(void *));
INLINE void *__obj_alloc(size_t size, void (*free_func)(void *));
INLINE void *__obj_alloc0(size_t size, void (*free_func)(void *));
INLINE struct obj *__obj_hold(struct obj *o);
INLINE void *__obj_get(struct obj *o);
INLINE void __obj_put(struct obj *o);
#endif
#define obj_release_o(op) do { if (op) obj_put_o((struct obj *) op); op = NULL; } while (0)
#define obj_release(op) do { if (op) obj_put(op); op = NULL; } while (0)
#include "log.h"
INLINE void __obj_init(struct obj *o, size_t size, void (*free_func)(void *)
#if OBJ_DEBUG
, const char *type, const char *file, const char *func, unsigned int line
#endif
) {
#if OBJ_DEBUG
o->magic = OBJ_MAGIC;
o->type = strdup(type);
write_log(LOG_DEBUG, "obj_allocX(\"%s\") -> %p [%s:%s:%u]", type, o, file, func, line);
#if OBJ_BACKTRACE
void *bt[4];
int addrs = backtrace(bt, 4);
char **syms = backtrace_symbols(bt, addrs);
if (syms) {
for (int i = 0; i < addrs; i++)
write_log(LOG_DEBUG, " obj_allocX caller %i: %s", i, syms[i]);
}
free(syms);
#endif
#endif
o->ref = 1;
o->free_func = free_func;
o->size = size;
}
INLINE void *__obj_alloc(size_t size, void (*free_func)(void *)
#if OBJ_DEBUG
, const char *type, const char *file, const char *func, unsigned int line
#endif
) {
struct obj *r;
r = g_malloc(size);
__obj_init(r, size, free_func
#if OBJ_DEBUG
, type, file, func, line
#endif
);
return r;
}
INLINE void *__obj_alloc0(size_t size, void (*free_func)(void *)
#if OBJ_DEBUG
, const char *type, const char *file, const char *func, unsigned int line
#endif
) {
struct obj *r;
r = g_malloc0(size);
__obj_init(r, size, free_func
#if OBJ_DEBUG
, type, file, func, line
#endif
);
return r;
}
INLINE struct obj *__obj_hold(struct obj *o
#if OBJ_DEBUG
, const char *file, const char *func, unsigned int line
#endif
) {
#if OBJ_DEBUG
assert(o->magic == OBJ_MAGIC);
write_log(LOG_DEBUG, "obj_hold(%p, \"%s\"), refcnt inc %u -> %u [%s:%s:%u]",
o, o->type, g_atomic_int_get(&o->ref), g_atomic_int_get(&o->ref) + 1, file, func, line);
#if OBJ_BACKTRACE
void *bt[4];
int addrs = backtrace(bt, 4);
char **syms = backtrace_symbols(bt, addrs);
if (syms) {
for (int i = 0; i < addrs; i++)
write_log(LOG_DEBUG, " obj_hold caller %i: %s", i, syms[i]);
}
free(syms);
#endif
#endif
g_atomic_int_inc(&o->ref);
return o;
}
INLINE void *__obj_get(struct obj *o
#if OBJ_DEBUG
, const char *file, const char *func, unsigned int line
#endif
) {
return __obj_hold(o
#if OBJ_DEBUG
, file, func, line
#endif
);
}
INLINE void __obj_put(struct obj *o
#if OBJ_DEBUG
, const char *file, const char *func, unsigned int line
#endif
) {
#if OBJ_DEBUG
assert(o->magic == OBJ_MAGIC);
write_log(LOG_DEBUG, "obj_put(%p, \"%s\"), refcnt dec %u -> %u [%s:%s:%u]",
o, o->type, g_atomic_int_get(&o->ref), g_atomic_int_get(&o->ref) - 1, file, func, line);
#if OBJ_BACKTRACE
void *bt[4];
int addrs = backtrace(bt, 4);
char **syms = backtrace_symbols(bt, addrs);
if (syms) {
for (int i = 0; i < addrs; i++)
write_log(LOG_DEBUG, " obj_put caller %i: %s", i, syms[i]);
}
free(syms);
#endif
#endif
if (!g_atomic_int_dec_and_test(&o->ref))
return;
if (o->free_func)
o->free_func(o);
#if OBJ_DEBUG
o->magic = 0;
if (o->type)
free(o->type);
#endif
if (o->size != -1)
g_free(o);
}
#endif
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