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/*
* Copyright (C) 2002 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __LF_UTIL_H__
#define __LF_UTIL_H__
/* Guard C code in headers, while including them from C++ */
#ifdef __cplusplus
# define LF_BEGIN_DECLS extern "C" {
# define LF_END_DECLS }
#else
# define LF_BEGIN_DECLS
# define LF_END_DECLS
#endif
LF_BEGIN_DECLS
typedef unsigned long lf_size_t;
typedef int lf_bool_t;
/* Padding in vtables */
typedef void (* LfPaddingFunc) (void);
/* Free data */
typedef void (* LfFreeFunc) (void *data);
void* lf_malloc (lf_size_t n_bytes);
void* lf_malloc0 (lf_size_t n_bytes);
void* lf_realloc (void *mem,
lf_size_t n_bytes);
void lf_free (void *mem);
void* lf_try_malloc (lf_size_t n_bytes);
void* lf_try_realloc (void *mem,
lf_size_t n_bytes);
/* Convenience memory allocators
*/
#define lf_new(struct_type, n_structs) \
((struct_type *) lf_malloc (((lf_size_t) sizeof (struct_type)) * ((lf_size_t) (n_structs))))
#define lf_new0(struct_type, n_structs) \
((struct_type *) lf_malloc0 (((lf_size_t) sizeof (struct_type)) * ((lf_size_t) (n_structs))))
#define lf_renew(struct_type, mem, n_structs) \
((struct_type *) lf_realloc ((mem), ((lf_size_t) sizeof (struct_type)) * ((lf_size_t) (n_structs))))
/* Memory allocation virtualization, so you can override memory
* allocation behavior. lf_mem_set_vtable() has to be the very first
* liblf function called if being used
*/
typedef struct
{
void* (*malloc) (lf_size_t n_bytes);
void* (*realloc) (void *mem,
lf_size_t n_bytes);
void (*free) (void *mem);
/* optional */
void* (*calloc) (lf_size_t n_blocks,
lf_size_t n_block_bytes);
void* (*try_malloc) (lf_size_t n_bytes);
void* (*try_realloc) (void *mem,
lf_size_t n_bytes);
LfPaddingFunc padding1;
LfPaddingFunc padding2;
} LfMemVTable;
void lf_mem_set_vtable (LfMemVTable *vtable);
lf_bool_t lf_mem_is_system_malloc (void);
typedef lf_bool_t (* LfUtf8ValidateFunc) (const char *str,
int max_len);
void lf_set_utf8_validator (LfUtf8ValidateFunc validate_func);
LF_END_DECLS
#endif /* __LF_UTIL_H__ */
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