sal/osl/os2/conditn.c

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   5  * Copyright 2008 by Sun Microsystems, Inc.
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   7  * OpenOffice.org - a multi-platform office productivity suite
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   9  * $RCSfile: conditn.c,v $
  10  * $Revision: 1.6 $
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  30
  31 #include "system.h"
  32
  33 #include <osl/conditn.h>
  34 #include <osl/diagnose.h>
  35 #include <osl/time.h>
  36
  37
  38
  39 /*
  40     under WIN32, we use the void* oslCondition
  41     as a WIN32 HANDLE (which is also a 32-bit value)
  42 */
  43
  44 /*****************************************************************************/
  45 /* osl_createCondition */
  46 /*****************************************************************************/
  47 oslCondition SAL_CALL osl_createCondition()
  48 {
  49     HEV hevCondition;
  50     APIRET rc;
  51
  52     rc = DosCreateEventSem( NULL,       /* unnamed semaphore */
  53                             &hevCondition,  /* pointer to variable */
  54                                                    /* for the sem-handle */
  55                             DC_SEM_SHARED,  /* shared semaphore */
  56                             FALSE );         /* initial state is posted */
  57
  58     if( rc == NO_ERROR )
  59         return (oslCondition)hevCondition;
  60     else
  61         return NULL;
  62 }
  63
  64 /*****************************************************************************/
  65 /* osl_destroyCondition */
  66 /*****************************************************************************/
  67 void SAL_CALL osl_destroyCondition(oslCondition Condition)
  68 {
  69     if( Condition )
  70         DosCloseEventSem( (HEV) Condition );
  71 }
  72
  73 /*****************************************************************************/
  74 /* osl_setCondition */
  75 /*****************************************************************************/
  76 sal_Bool SAL_CALL osl_setCondition(oslCondition Condition)
  77 {
  78     OSL_ASSERT(Condition);
  79
  80     return DosPostEventSem((HEV)Condition) == NO_ERROR;
  81 }
  82
  83 /*****************************************************************************/
  84 /* osl_resetCondition */
  85 /*****************************************************************************/
  86 sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition)
  87 {
  88     ULONG ulPostCount;
  89
  90     OSL_ASSERT(Condition);
  91
  92     return DosResetEventSem((HEV)Condition, &ulPostCount) == NO_ERROR;
  93 }
  94
  95 /*****************************************************************************/
  96 /* osl_waitCondition */
  97 /*****************************************************************************/
  98 oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition, const TimeValue * pTimeout )
  99 {
 100     long nTimeout;
 101     APIRET rc;
 102     OSL_ASSERT(Condition);
 103
 104     if( pTimeout )
 105         nTimeout = pTimeout->Seconds * 1000 + pTimeout->Nanosec / 1000000;
 106     else
 107         nTimeout = SEM_INDEFINITE_WAIT;
 108
 109     rc = DosWaitEventSem((HEV)Condition, nTimeout );
 110     if( rc == ERROR_TIMEOUT )
 111         return osl_cond_result_timeout;
 112     if( rc != NO_ERROR )
 113         return osl_cond_result_error;
 114
 115     return osl_cond_result_ok;
 116 }
 117
 118 /*****************************************************************************/
 119 /* osl_checkCondition */
 120 /*****************************************************************************/
 121 sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition)
 122 {
 123     OSL_ASSERT(Condition);
 124
 125     return( DosWaitEventSem((HEV)Condition, SEM_IMMEDIATE_RETURN) == NO_ERROR);
 126 }
 127