mariadb/innobase/include/mem0pool.h
heikki@donna.mysql.fi 314cdf3424 ut0ut.c Fixes for 64-bit Linux, bug fixes, compiler warning fixes
mem0pool.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0file.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0shm.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0sync.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0thread.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
page0page.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
que0que.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
row0ins.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
row0mysql.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
row0sel.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
row0upd.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
row0vers.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
srv0srv.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
srv0start.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
sync0arr.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
sync0rw.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
sync0sync.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
trx0rec.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
trx0trx.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
srv0srv.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
sync0rw.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
sync0sync.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
ut0dbg.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
lock0lock.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
log0log.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
log0recv.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
ibuf0ibuf.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
buf0buf.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
buf0buf.ic	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
hash0hash.ic	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
mach0data.ic	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
mem0mem.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
mem0pool.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
mtr0mtr.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0file.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0sync.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0sync.ic	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
os0thread.h	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
univ.i  	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
row0mysql.ic	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
com0shm.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
data0data.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
data0type.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
dict0crea.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
dict0dict.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
fil0fil.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
fsp0fsp.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
fut0lst.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
btr0sea.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
buf0buf.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
buf0flu.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
btr0btr.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
btr0cur.c	Fixes for 64-bit Linux, bug fixes, compiler warning fixes
2001-03-02 17:33:11 +02:00

95 lines
2.5 KiB
C

/******************************************************
The lowest-level memory management
(c) 1994, 1995 Innobase Oy
Created 6/9/1994 Heikki Tuuri
*******************************************************/
#ifndef mem0pool_h
#define mem0pool_h
#include "univ.i"
#include "os0file.h"
#include "ut0lst.h"
typedef struct mem_area_struct mem_area_t;
typedef struct mem_pool_struct mem_pool_t;
/* The common memory pool */
extern mem_pool_t* mem_comm_pool;
/* Memory area header */
struct mem_area_struct{
ulint size_and_free; /* memory area size is obtained by
anding with ~MEM_AREA_FREE; area in
a free list if ANDing with
MEM_AREA_FREE results in nonzero */
UT_LIST_NODE_T(mem_area_t)
free_list; /* free list node */
};
/* Each memory area takes this many extra bytes for control information */
#define MEM_AREA_EXTRA_SIZE (sizeof(struct mem_area_struct))
/************************************************************************
Creates a memory pool. */
mem_pool_t*
mem_pool_create(
/*============*/
/* out: memory pool */
ulint size); /* in: pool size in bytes */
/************************************************************************
Allocates memory from a pool. NOTE: This low-level function should only be
used in mem0mem.*! */
void*
mem_area_alloc(
/*===========*/
/* out, own: allocated memory buffer */
ulint size, /* in: allocated size in bytes; for optimum
space usage, the size should be a power of 2
minus MEM_AREA_EXTRA_SIZE */
mem_pool_t* pool); /* in: memory pool */
/************************************************************************
Frees memory to a pool. */
void
mem_area_free(
/*==========*/
void* ptr, /* in, own: pointer to allocated memory
buffer */
mem_pool_t* pool); /* in: memory pool */
/************************************************************************
Returns the amount of reserved memory. */
ulint
mem_pool_get_reserved(
/*==================*/
/* out: reserved mmeory in bytes */
mem_pool_t* pool); /* in: memory pool */
/************************************************************************
Validates a memory pool. */
ibool
mem_pool_validate(
/*==============*/
/* out: TRUE if ok */
mem_pool_t* pool); /* in: memory pool */
/************************************************************************
Prints info of a memory pool. */
void
mem_pool_print_info(
/*================*/
FILE* outfile,/* in: output file to write to */
mem_pool_t* pool); /* in: memory pool */
#ifndef UNIV_NONINL
#include "mem0pool.ic"
#endif
#endif