talloc.h

openswan

#ifndef _TALLOC_H_
#define _TALLOC_H_
/* 
   Unix SMB/CIFS implementation.
   Samba temporary memory allocation functions

   Copyright (C) Andrew Tridgell 2004
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/* this is only needed for compatibility with the old talloc */
typedef void TALLOC_CTX;
#ifndef _SAMBA_BUILD_
#include <stdarg.h>
#endif

/*
  this uses a little trick to allow __LINE__ to be stringified
*/
#define _STRING_LINE_(s)    #s
#define _STRING_LINE2_(s)   _STRING_LINE_(s)
#define __LINESTR__       _STRING_LINE2_(__LINE__)
#define __location__ __FILE__ ":" __LINESTR__

/* useful macros for creating type checked pointers */
#define talloc(ctx, type) (type *)talloc_named_const(ctx, sizeof(type), #type)
#define talloc_p(ctx, type) talloc(ctx, type)
#define talloc_size(ctx, size) talloc_named_const(ctx, size, __location__)
#define talloc_zero(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), __location__)
#define talloc_realloc(ctx, ptr, size) _talloc_realloc(ctx, ptr, size, __location__)
#define talloc_new(ctx) talloc_named_const(ctx, 0, "talloc_new: " __location__)
#define talloc_zero_p(ctx, type) (type *)_talloc_zero(ctx, sizeof(type), #type)
#define talloc_zero_array(ctx, type, count) (type *)_talloc_zero_array(ctx, sizeof(type), count, __location__)
#define talloc_array(ctx, type, count) (type *)talloc_array_size(ctx, sizeof(type), count, __location__)
#define talloc_realloc_p(ctx, p, type, count) (type *)talloc_realloc_array(ctx, p, sizeof(type), count, __location__)
#define talloc_memdup(t, p, size) _talloc_memdup(t, p, size, __location__)

#define talloc_destroy(ctx) talloc_free(ctx)

#define malloc_p(type) (type *)malloc(sizeof(type))
#define malloc_array_p(type, count) (type *)realloc_array(NULL, sizeof(type), count)
#define realloc_p(p, type, count) (type *)realloc_array(p, sizeof(type), count)

#define data_blob(ptr, size) data_blob_named(ptr, size, "DATA_BLOB: "__location__)
#define data_blob_talloc(ctx, ptr, size) data_blob_talloc_named(ctx, ptr, size, "DATA_BLOB: "__location__)

#ifndef PRINTF_ATTRIBUTE
#define PRINTF_ATTRIBUTE(a1, a2)
#endif


/* The following definitions come from lib/talloc.c  */
void *_talloc(const void *context, size_t size);
void talloc_set_destructor(const void *ptr, int (*destructor)(void *));
void talloc_increase_ref_count(const void *ptr);
void *talloc_reference(const void *context, const void *ptr);
int talloc_unlink(const void *context, void *ptr);
void talloc_set_name(const void *ptr, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
void talloc_set_name_const(const void *ptr, const char *name);
void *talloc_named(const void *context, size_t size, 
		   const char *fmt, ...) PRINTF_ATTRIBUTE(3,4);
void *talloc_named_const(const void *context, size_t size, const char *name);
const char *talloc_get_name(const void *ptr);
void *talloc_init(const char *fmt, ...) PRINTF_ATTRIBUTE(1,2);
int talloc_free(void *ptr);
void *_talloc_realloc(const void *context, void *ptr, size_t size, const char *name);
void *talloc_steal(const void *new_ctx, const void *ptr);
off_t talloc_total_size(const void *ptr);
off_t talloc_total_blocks(const void *ptr);
void talloc_report_full(const void *ptr, FILE *f);
void talloc_report(const void *ptr, FILE *f);
void talloc_enable_leak_report(void);
void talloc_enable_leak_report_full(void);
void *_talloc_zero(const void *ctx, size_t size, const char *name);
void *_talloc_memdup(const void *t, const void *p, size_t size, const char *name);
char *talloc_strdup(const void *t, const char *p);
char *talloc_strndup(const void *t, const char *p, size_t n);
char *talloc_vasprintf(const void *t, const char *fmt, va_list ap) PRINTF_ATTRIBUTE(2,0);
char *talloc_asprintf(const void *t, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
char *talloc_asprintf_append(char *s,
			     const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
void *talloc_array_size(const void *ctx, size_t el_size, unsigned count, const char *name);
void *_talloc_zero_array(const void *ctx, size_t el_size, unsigned count, const char *name);
void *talloc_realloc_array(const void *ctx, void *ptr, size_t el_size, unsigned count, const char *name);
void *talloc_realloc_fn(const void *context, void *ptr, size_t size);
void *talloc_autofree_context(void);

#endif