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Viewing changes to os2/sem.c

  • Committer: Bazaar Package Importer
  • Author(s): Marco d'Itri
  • Date: 2002-03-24 22:52:25 UTC
  • Revision ID: james.westby@ubuntu.com-20020324225225-7ru6itlapn03nl35
Tags: upstream-0.9.5a
Import upstream version 0.9.5a

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os2/sem.c
 
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/*--------------------------------------------------------------------*/
 
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/*       S e m . c                                                    */
 
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/*                                                                    */
 
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/*       Part of BinkD project                                        */
 
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/*       Semaphore support (OS/2) for bsy.c module                    */
 
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/*--------------------------------------------------------------------*/
 
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/*--------------------------------------------------------------------*/
 
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/*       Copyright (c) 1996 by Fydodor Ustinov                        */
 
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/*                             FIDONet 2:5020/79                      */
 
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/*                                                                    */
 
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/*  This program is  free software;  you can  redistribute it and/or  */
 
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/*  modify it  under  the terms of the GNU General Public License as  */ 
 
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/*  published  by the  Free Software Foundation; either version 2 of  */
 
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/*  the License, or (at your option) any later version. See COPYING.  */
 
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/*--------------------------------------------------------------------*/
 
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/*--------------------------------------------------------------------*/
 
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/*                          RCS Information                           */
 
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/*--------------------------------------------------------------------*/
 
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/*
 
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 * $Id: sem.c,v 2.0 2001/01/10 12:12:40 gul Exp $
 
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 *
 
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 * Revision history:
 
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 * $Log: sem.c,v $
 
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 * Revision 2.0  2001/01/10 12:12:40  gul
 
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 * Binkd is under CVS again
 
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 *
 
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 * Revision 1.2  1996/11/05 04:06:06  mff
 
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 *      Added support for multiple semaphores
 
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 *
 
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 * Revision 0.01  1996/12/04  14:52:58  ufm
 
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 *      First revision
 
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 *
 
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 */
 
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/*--------------------------------------------------------------------*/
 
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/*                        System include files                        */
 
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/*--------------------------------------------------------------------*/
 
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#ifdef __WATCOMC__
 
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  #define __IBMC__ 0
 
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  #define __IBMCPP__ 0
 
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#endif
 
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#define INCL_DOS
 
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#include <os2.h>
 
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/*--------------------------------------------------------------------*/
 
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/*                        Local include files                         */
 
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/*--------------------------------------------------------------------*/
 
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/*--------------------------------------------------------------------*/
 
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/*                         Global definitions                         */
 
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/*--------------------------------------------------------------------*/
 
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#define hmtx (*(HMTX*)vpSem)
 
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/*--------------------------------------------------------------------*/
 
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/*                          Global variables                          */
 
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/*--------------------------------------------------------------------*/
 
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/*--------------------------------------------------------------------*/
 
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/*                           Local variables                          */
 
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/*--------------------------------------------------------------------*/
 
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/*--------------------------------------------------------------------*/
 
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/*                   Global functions prototypes                      */
 
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/*--------------------------------------------------------------------*/
 
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extern void Log (int lev, char *s,...);
 
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/*--------------------------------------------------------------------*/
 
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/*    int InitSem(void)                                               */
 
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/*                                                                    */
 
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/*    Initialise Semaphores.                                          */
 
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/*--------------------------------------------------------------------*/
 
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int init_sem(void *vpSem) {
 
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  if (DosCreateMutexSem (0, &hmtx, 0, FALSE)) {
 
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     Log (0, "DosCreateMutexSem: error");
 
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     return(-1);
 
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   }
 
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   return(0);
 
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}
 
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/*--------------------------------------------------------------------*/
 
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/*    int CleanSem(void)                                              */
 
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/*                                                                    */
 
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/*    Clean Semaphores.                                               */
 
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/*--------------------------------------------------------------------*/
 
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int clean_sem(void *vpSem) {
 
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  DosCloseMutexSem (hmtx);
 
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  return (0);
 
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}
 
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/*--------------------------------------------------------------------*/
 
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/*    int LockSem(void)                                               */
 
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/*                                                                    */
 
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/*    Wait & lock semaphore                                           */
 
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/*--------------------------------------------------------------------*/
 
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int lock_sem(void *vpSem) {
 
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  DosRequestMutexSem (hmtx, SEM_INDEFINITE_WAIT);
 
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  return (0);
 
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}
 
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/*--------------------------------------------------------------------*/
 
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/*    int ReleaseSem(void)                                            */
 
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/*                                                                    */
 
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/*    Release Semaphore.                                              */
 
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/*--------------------------------------------------------------------*/
 
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int release_sem(void *vpSem) {
 
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  DosReleaseMutexSem (hmtx);
 
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  return (0);
 
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}
 
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