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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [itron/] [include/] [itronsys/] [vmempool.h] - Blame information for rev 30

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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.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: vmempool.h,v 1.2 2001-09-27 11:59:12 chris Exp $
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 */
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#ifndef __ITRON_VARIABLE_MEMORYPOOL_h_
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#define __ITRON_VARIABLE_MEMORYPOOL_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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