astmm.c File Reference

Memory Management. More...

#include "asterisk.h"
#include "asterisk/_private.h"
#include "asterisk/logger.h"

Include dependency graph for astmm.c:

Go to the source code of this file.

Macros
#define	ASTMM_LIBC   ASTMM_IGNORE
#define	DEBUG_CHAOS_RETURN(c, f)
	DEBUG_CHAOS returns failure randomly. More...
#define	MALLOC_FAILURE_MSG   ast_log_safe(LOG_ERROR, "Memory Allocation Failure in function %s at line %d of %s\n", func, lineno, file)

Functions
int	__ast_asprintf (const char *file, int lineno, const char *func, char **strp, const char *format,...)
void *	__ast_calloc (size_t nmemb, size_t size, const char *file, int lineno, const char *func)
void *	__ast_calloc_cache (size_t nmemb, size_t size, const char *file, int lineno, const char *func)
void	__ast_free (void *ptr, const char *file, int lineno, const char *func)
void *	__ast_malloc (size_t size, const char *file, int lineno, const char *func)
void *	__ast_realloc (void *ptr, size_t size, const char *file, int lineno, const char *func)
int	__ast_repl_asprintf (const char *file, int lineno, const char *func, char **strp, const char *format,...)
void *	__ast_repl_calloc (size_t nmemb, size_t size, const char *file, int lineno, const char *func)
static void *	__ast_repl_calloc_cache (size_t nmemb, size_t size, const char *file, int lineno, const char *func)
void *	__ast_repl_malloc (size_t size, const char *file, int lineno, const char *func)
void *	__ast_repl_realloc (void *ptr, size_t size, const char *file, int lineno, const char *func)
char *	__ast_repl_strdup (const char *s, const char *file, int lineno, const char *func)
char *	__ast_repl_strndup (const char *s, size_t n, const char *file, int lineno, const char *func)
int	__ast_repl_vasprintf (char **strp, const char *format, va_list ap, const char *file, int lineno, const char *func)
char *	__ast_strdup (const char *s, const char *file, int lineno, const char *func)
char *	__ast_strndup (const char *s, size_t n, const char *file, int lineno, const char *func)
int	__ast_vasprintf (char **strp, const char *format, va_list ap, const char *file, int lineno, const char *func)
void	ast_free_ptr (void *ptr)
	free() wrapper More...
void *	ast_std_calloc (size_t nmemb, size_t size)
void	ast_std_free (void *ptr)
void *	ast_std_malloc (size_t size)
void *	ast_std_realloc (void *ptr, size_t size)
void	load_astmm_phase_1 (void)
	Initialize malloc debug phase 1. More...
void	load_astmm_phase_2 (void)
	Initialize malloc debug phase 2. More...

Detailed Description

Memory Management.

Author

Mark Spencer marks.nosp@m.ter@.nosp@m.digiu.nosp@m.m.co.nosp@m.m

Richard Mudgett rmudg.nosp@m.ett@.nosp@m.digiu.nosp@m.m.co.nosp@m.m

Definition in file astmm.c.

Macro Definition Documentation

ASTMM_LIBC

#define ASTMM_LIBC   ASTMM_IGNORE

Definition at line 31 of file astmm.c.

DEBUG_CHAOS_RETURN

#define DEBUG_CHAOS_RETURN	(		c,
			f
	)

DEBUG_CHAOS returns failure randomly.

DEBUG_CHAOS_RETURN(failure); can be used to fake failure of functions such as memory allocation, for the purposes of testing failure handling.

Definition at line 59 of file astmm.c.

Referenced by __ast_repl_asprintf(), __ast_repl_calloc(), __ast_repl_calloc_cache(), __ast_repl_malloc(), __ast_repl_realloc(), __ast_repl_strdup(), __ast_repl_strndup(), and __ast_repl_vasprintf().

MALLOC_FAILURE_MSG

#define MALLOC_FAILURE_MSG   ast_log_safe(LOG_ERROR, "Memory Allocation Failure in function %s at line %d of %s\n", func, lineno, file)

Definition at line 70 of file astmm.c.

Referenced by __ast_asprintf(), __ast_calloc(), __ast_calloc_cache(), __ast_malloc(), __ast_realloc(), __ast_strdup(), __ast_strndup(), and __ast_vasprintf().

Function Documentation

__ast_asprintf()

int __ast_asprintf	(	const char *	file,
		int	lineno,
		const char *	func,
		char **	strp,
		const char *	format,
			...
	)

Definition at line 1712 of file astmm.c.

References __ast_repl_vasprintf(), MALLOC_FAILURE_MSG, and NULL.

{
   int res;
   va_list ap;

   va_start(ap, format);
   res = __ast_repl_vasprintf(strp, format, ap, file, lineno, func);
   if (res < 0) {
      /*
       * *strp is undefined so set to NULL to ensure it is
       * initialized to something useful.
       */
      *strp = NULL;

      MALLOC_FAILURE_MSG;
   }
   va_end(ap);

   return res;
}

__ast_calloc()

void* __ast_calloc	(	size_t	nmemb,
		size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1635 of file astmm.c.

References __ast_repl_calloc(), and MALLOC_FAILURE_MSG.

Referenced by __ast_calloc_with_stringfields(), __ast_datastore_alloc(), __ast_frdup(), _ast_hashtab_create(), _ast_hashtab_dup(), _ast_hashtab_insert_immediate_bucket(), _ast_hashtab_resize(), _ast_hashtab_start_traversal(), _ast_hashtab_start_write_traversal(), _ast_heap_create(), _ast_var_assign(), _ast_variable_new(), add_string_pool(), ast_frame_header_new(), and internal_ao2_alloc().

{
   void *p;

   p = __ast_repl_calloc(nmemb, size, file, lineno, func);
   if (!p) {
      MALLOC_FAILURE_MSG;
   }

   return p;
}

__ast_calloc_cache()

void* __ast_calloc_cache	(	size_t	nmemb,
		size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1647 of file astmm.c.

References __ast_repl_calloc_cache(), and MALLOC_FAILURE_MSG.

{
   void *p;

   p = __ast_repl_calloc_cache(nmemb, size, file, lineno, func);
   if (!p) {
      MALLOC_FAILURE_MSG;
   }

   return p;

}

__ast_free()

void __ast_free	(	void *	ptr,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1586 of file astmm.c.

References free().

{
   free(ptr);
}

__ast_malloc()

void* __ast_malloc	(	size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1660 of file astmm.c.

References __ast_repl_malloc(), and MALLOC_FAILURE_MSG.

Referenced by __ast_cc_config_params_init(), and _ast_heap_create().

{
   void *p;

   p = __ast_repl_malloc(size, file, lineno, func);
   if (!p) {
      MALLOC_FAILURE_MSG;
   }

   return p;
}

__ast_realloc()

void* __ast_realloc	(	void *	ptr,
		size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1672 of file astmm.c.

References __ast_repl_realloc(), and MALLOC_FAILURE_MSG.

Referenced by grow_heap().

{
   void *newp;

   newp = __ast_repl_realloc(ptr, size, file, lineno, func);
   if (!newp) {
      MALLOC_FAILURE_MSG;
   }

   return newp;
}

__ast_repl_asprintf()

int __ast_repl_asprintf	(	const char *	file,
		int	lineno,
		const char *	func,
		char **	strp,
		const char *	format,
			...
	)

Definition at line 1612 of file astmm.c.

References DEBUG_CHAOS_RETURN, and vasprintf().

{
   int res;
   va_list ap;

   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, -1);

   va_start(ap, format);
   res = vasprintf(strp, format, ap);
   va_end(ap);

   return res;
}

__ast_repl_calloc()

void* __ast_repl_calloc	(	size_t	nmemb,
		size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1565 of file astmm.c.

References calloc, DEBUG_CHAOS_RETURN, and NULL.

Referenced by __ast_calloc().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, NULL);

   return calloc(nmemb, size);
}

__ast_repl_calloc_cache()

static void* __ast_repl_calloc_cache ( size_t  nmemb, size_t  size, const char *  file, int  lineno, const char *  func  )

static

Definition at line 1572 of file astmm.c.

References calloc, DEBUG_CHAOS_RETURN, and NULL.

Referenced by __ast_calloc_cache().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, NULL);

   return calloc(nmemb, size);
}

__ast_repl_malloc()

void* __ast_repl_malloc	(	size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1579 of file astmm.c.

References DEBUG_CHAOS_RETURN, malloc(), and NULL.

Referenced by __ast_malloc().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, NULL);

   return malloc(size);
}

__ast_repl_realloc()

void* __ast_repl_realloc	(	void *	ptr,
		size_t	size,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1591 of file astmm.c.

References DEBUG_CHAOS_RETURN, NULL, and realloc.

Referenced by __ast_realloc().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, NULL);

   return realloc(ptr, size);
}

__ast_repl_strdup()

char* __ast_repl_strdup	(	const char *	s,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1598 of file astmm.c.

References DEBUG_CHAOS_RETURN, NULL, and strdup.

Referenced by __ast_strdup().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, NULL);

   return strdup(s);
}

__ast_repl_strndup()

char* __ast_repl_strndup	(	const char *	s,
		size_t	n,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1605 of file astmm.c.

References DEBUG_CHAOS_RETURN, NULL, and strndup().

Referenced by __ast_strndup().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, NULL);

   return strndup(s, n);
}

__ast_repl_vasprintf()

int __ast_repl_vasprintf	(	char **	strp,
		const char *	format,
		va_list	ap,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1626 of file astmm.c.

References DEBUG_CHAOS_RETURN, and vasprintf().

Referenced by __ast_asprintf(), and __ast_vasprintf().

{
   DEBUG_CHAOS_RETURN(DEBUG_CHAOS_ALLOC_CHANCE, -1);

   return vasprintf(strp, format, ap);
}

__ast_strdup()

char* __ast_strdup	(	const char *	s,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1684 of file astmm.c.

References __ast_repl_strdup(), MALLOC_FAILURE_MSG, and NULL.

{
   char *newstr = NULL;

   if (s) {
      newstr = __ast_repl_strdup(s, file, lineno, func);
      if (!newstr) {
         MALLOC_FAILURE_MSG;
      }
   }

   return newstr;
}

__ast_strndup()

char* __ast_strndup	(	const char *	s,
		size_t	n,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1698 of file astmm.c.

References __ast_repl_strndup(), MALLOC_FAILURE_MSG, and NULL.

{
   char *newstr = NULL;

   if (s) {
      newstr = __ast_repl_strndup(s, n, file, lineno, func);
      if (!newstr) {
         MALLOC_FAILURE_MSG;
      }
   }

   return newstr;
}

__ast_vasprintf()

int __ast_vasprintf	(	char **	strp,
		const char *	format,
		va_list	ap,
		const char *	file,
		int	lineno,
		const char *	func
	)

Definition at line 1733 of file astmm.c.

References __ast_repl_vasprintf(), MALLOC_FAILURE_MSG, and NULL.

{
   int res;

   res = __ast_repl_vasprintf(strp, format, ap, file, lineno, func);
   if (res < 0) {
      /*
       * *strp is undefined so set to NULL to ensure it is
       * initialized to something useful.
       */
      *strp = NULL;

      MALLOC_FAILURE_MSG;
   }

   return res;
}

ast_free_ptr()

void ast_free_ptr

(

void *

ptr

)

free() wrapper

ast_free_ptr should be used when a function pointer for free() needs to be passed as the argument to a function. Otherwise, astmm will cause seg faults.

Definition at line 1771 of file astmm.c.

References ast_free.

Referenced by add_extension(), add_extensions(), add_to_regcontext(), app_create(), ast_hint_presence_state(), ast_merge_contexts_and_delete(), ast_rtp_prop_set(), ast_rtp_read(), ast_sip_persistent_endpoint_update_state(), AST_TEST_DEFINE(), attended_transfer_to_ami(), blind_transfer_to_ami(), confbridge_exec(), context_merge(), control_move_cleanup(), device_state_cb(), dynamic_dtmf_hook_add(), extension_state_add_destroy(), handle_cli_dialplan_add_extension(), handle_request_refer(), internal_extension_state_extended(), manager_dialplan_extension_add(), parking_add_extension(), parking_duration_callback(), pbx_load_config(), pbx_load_users(), pjsip_acf_dial_contacts_read(), register_exten(), register_peer_exten(), sla_build_station(), sla_build_trunk(), sorcery_astdb_retrieve_id(), stasis_app_control_add_role(), stasis_app_control_continue(), stasis_app_control_dtmf(), stasis_app_control_moh_start(), stasis_app_control_move(), stasis_app_control_mute(), stasis_app_control_redirect(), stasis_app_control_unmute(), and transmit_info_dtmf().

{
   ast_free(ptr);
}

ast_std_calloc()

void* ast_std_calloc	(	size_t	nmemb,
		size_t	size
	)

Definition at line 1756 of file astmm.c.

References calloc.

Referenced by ast_get_reentrancy(), and ast_module_register().

{
   return calloc(nmemb, size);
}

ast_std_free()

void ast_std_free

(

void *

ptr

)

Definition at line 1766 of file astmm.c.

References free().

Referenced by __dump_backtrace(), ast_ari_get_docs(), ast_safe_mkdir(), delete_reentrancy_cs(), module_destroy(), safe_mkdir(), split_path(), and stasis_app_stored_recording_find_by_name().

{
   free(ptr);
}

ast_std_malloc()

void* ast_std_malloc

(

size_t

size

)

Definition at line 1751 of file astmm.c.

References malloc().

{
   return malloc(size);
}

ast_std_realloc()

void* ast_std_realloc	(	void *	ptr,
		size_t	size
	)

Definition at line 1761 of file astmm.c.

References realloc.

{
   return realloc(ptr, size);
}

load_astmm_phase_1()

void load_astmm_phase_1

(

void

)

Initialize malloc debug phase 1.

Note

Must be called first thing after forking.

Returns

Nothing

Definition at line 1557 of file astmm.c.

Referenced by asterisk_daemon().

{
}

load_astmm_phase_2()

void load_astmm_phase_2

(

void

)

Initialize malloc debug phase 2.

Returns

Nothing

Definition at line 1561 of file astmm.c.

Referenced by asterisk_daemon().

{
}