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/*
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#ifndef _MEM_POOL_H_
#define _MEM_POOL_H_
#include "list.h"
#include "locking.h"
#include "logging.h"
#include "mem-types.h"
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include <stdarg.h>
/*
* Need this for unit tests since inline functions
* access memory allocation and need to use the
* unit test versions
*/
#ifdef UNIT_TESTING
#include <cmockery/cmockery_override.h>
#endif
#define GF_MEM_HEADER_SIZE (4 + sizeof (size_t) + sizeof (xlator_t *) + 4 + 8)
#define GF_MEM_TRAILER_SIZE 8
#define GF_MEM_HEADER_MAGIC 0xCAFEBABE
#define GF_MEM_TRAILER_MAGIC 0xBAADF00D
struct mem_acct {
uint32_t num_types;
struct mem_acct_rec *rec;
};
struct mem_acct_rec {
size_t size;
size_t max_size;
uint32_t num_allocs;
uint32_t total_allocs;
uint32_t max_num_allocs;
gf_lock_t lock;
};
void *
__gf_calloc (size_t cnt, size_t size, uint32_t type);
void *
__gf_malloc (size_t size, uint32_t type);
void *
__gf_realloc (void *ptr, size_t size);
int
gf_vasprintf (char **string_ptr, const char *format, va_list arg);
int
gf_asprintf (char **string_ptr, const char *format, ...);
void
__gf_free (void *ptr);
static inline
void* __gf_default_malloc (size_t size)
{
void *ptr = NULL;
ptr = malloc (size);
if (!ptr)
gf_log_nomem ("", GF_LOG_ALERT, size);
return ptr;
}
static inline
void* __gf_default_calloc (int cnt, size_t size)
{
void *ptr = NULL;
ptr = calloc (cnt, size);
if (!ptr)
gf_log_nomem ("", GF_LOG_ALERT, (cnt * size));
return ptr;
}
static inline
void* __gf_default_realloc (void *oldptr, size_t size)
{
void *ptr = NULL;
ptr = realloc (oldptr, size);
if (!ptr)
gf_log_nomem ("", GF_LOG_ALERT, size);
return ptr;
}
#define MALLOC(size) __gf_default_malloc(size)
#define CALLOC(cnt,size) __gf_default_calloc(cnt,size)
#define REALLOC(ptr,size) __gf_default_realloc(ptr,size)
#define FREE(ptr) \
if (ptr != NULL) { \
free ((void *)ptr); \
ptr = (void *)0xeeeeeeee; \
}
#define GF_CALLOC(nmemb, size, type) __gf_calloc (nmemb, size, type)
#define GF_MALLOC(size, type) __gf_malloc (size, type)
#define GF_REALLOC(ptr, size) __gf_realloc (ptr, size)
#define GF_FREE(free_ptr) __gf_free (free_ptr)
static inline
char *gf_strndup (const char *src, size_t len)
{
char *dup_str = NULL;
if (!src) {
goto out;
}
dup_str = GF_CALLOC (1, len + 1, gf_common_mt_strdup);
if (!dup_str) {
goto out;
}
memcpy (dup_str, src, len);
out:
return dup_str;
}
static inline
char * gf_strdup (const char *src)
{
char *dup_str = NULL;
size_t len = 0;
len = strlen (src) + 1;
dup_str = GF_CALLOC(1, len, gf_common_mt_strdup);
if (!dup_str)
return NULL;
memcpy (dup_str, src, len);
return dup_str;
}
static inline void *
gf_memdup (const void *src, size_t size)
{
void *dup_mem = NULL;
dup_mem = GF_CALLOC(1, size, gf_common_mt_strdup);
if (!dup_mem)
goto out;
memcpy (dup_mem, src, size);
out:
return dup_mem;
}
struct mem_pool {
struct list_head list;
int hot_count;
int cold_count;
gf_lock_t lock;
unsigned long padded_sizeof_type;
void *pool;
void *pool_end;
int real_sizeof_type;
uint64_t alloc_count;
uint64_t pool_misses;
int max_alloc;
int curr_stdalloc;
int max_stdalloc;
char *name;
struct list_head global_list;
};
struct mem_pool *
mem_pool_new_fn (unsigned long sizeof_type, unsigned long count, char *name);
#define mem_pool_new(type,count) mem_pool_new_fn (sizeof(type), count, #type)
void mem_put (void *ptr);
void *mem_get (struct mem_pool *pool);
void *mem_get0 (struct mem_pool *pool);
void mem_pool_destroy (struct mem_pool *pool);
void gf_mem_acct_enable_set (void *ctx);
#endif /* _MEM_POOL_H */
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