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136 lines
2.1 KiB
C
136 lines
2.1 KiB
C
/**
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* @file itronsys/vmempool.h
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*/
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/*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifndef _ITRONSYS_VMEMPOOL_H
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#define _ITRONSYS_VMEMPOOL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Create Variable Memory Pool (cre_mpl) Structure
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*/
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typedef struct t_cmpl {
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VP exinf; /* extended information */
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ATR mplatr; /* memorypool attributes */
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INT mplsz; /* memorypool size */
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/* additional information may be included depending on the implementation */
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} T_CMPL;
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/*
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* mplatr
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*/
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#define TA_TFIFO 0x00 /* waiting tasks are handled by FIFO */
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#define TA_TPRI 0x01 /* waiting tasks are handled by priority */
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/*
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* mplid
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*/
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#define TMPL_OS (-4) /* memorypool used by OS */
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/*
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* Reference Variable Memory Pool (ref_mpl) Structure
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*/
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typedef struct t_rmpl {
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VP exinf; /* extended information */
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BOOL_ID wtsk; /* indicates whether or not there are waiting tasks */
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INT frsz; /* total size of free memory */
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INT maxsz; /* size of largest contiguous memory */
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/* additional information may be included depending on the implementation */
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} T_RMPL;
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/*
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* Variable Memory Pool Functions
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*/
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/*
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* cre_mpl - Create Variable-Size Memorypool
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*/
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ER cre_mpl(
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ID mplid,
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T_CMPL *pk_cmpl
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);
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/*
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* del_mpl - Delete Variable-Size Memorypool
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*/
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ER del_mpl(
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ID mplid
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);
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/*
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* get_blk - Get Variable-Size Memory Block
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*/
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ER get_blk(
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VP *p_blk,
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ID mplid,
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INT blksz
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);
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/*
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* pget_blk - Poll and Get Variable-Size Memory Block
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*/
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ER pget_blk(
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VP *p_blk,
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ID mplid,
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INT blksz
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);
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/*
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* tget_blk - Get Variable-Size Memory Block with Timeout
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*/
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ER tget_blk(
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VP *p_blk,
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ID mplid,
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INT blksz,
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TMO tmout
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);
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/*
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* rel_blk - Release Variable-Size Memory Block
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*/
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ER rel_blk(
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ID mplid,
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VP blk
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);
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/*
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* ref_mpl - Reference Variable-Size Memorypool Status
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*/
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ER ref_mpl(
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T_RMPL *pk_rmpl,
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ID mplid
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);
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* end of include file */
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