1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include "system.h"
25
26 #include <osl/conditn.h>
27 #include <osl/diagnose.h>
28 #include <osl/time.h>
29
30
31
32 /*
33 under WIN32, we use the void* oslCondition
34 as a WIN32 HANDLE (which is also a 32-bit value)
35 */
36
37 /*****************************************************************************/
38 /* osl_createCondition */
39 /*****************************************************************************/
osl_createCondition()40 oslCondition SAL_CALL osl_createCondition()
41 {
42 HEV hevCondition;
43 APIRET rc;
44
45 rc = DosCreateEventSem( NULL, /* unnamed semaphore */
46 &hevCondition, /* pointer to variable */
47 /* for the sem-handle */
48 DC_SEM_SHARED, /* shared semaphore */
49 FALSE ); /* initial state is posted */
50
51 if( rc == NO_ERROR )
52 return (oslCondition)hevCondition;
53 else
54 return NULL;
55 }
56
57 /*****************************************************************************/
58 /* osl_destroyCondition */
59 /*****************************************************************************/
osl_destroyCondition(oslCondition Condition)60 void SAL_CALL osl_destroyCondition(oslCondition Condition)
61 {
62 if( Condition )
63 DosCloseEventSem( (HEV) Condition );
64 }
65
66 /*****************************************************************************/
67 /* osl_setCondition */
68 /*****************************************************************************/
osl_setCondition(oslCondition Condition)69 sal_Bool SAL_CALL osl_setCondition(oslCondition Condition)
70 {
71 OSL_ASSERT(Condition);
72
73 return DosPostEventSem((HEV)Condition) == NO_ERROR;
74 }
75
76 /*****************************************************************************/
77 /* osl_resetCondition */
78 /*****************************************************************************/
osl_resetCondition(oslCondition Condition)79 sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition)
80 {
81 ULONG ulPostCount;
82
83 OSL_ASSERT(Condition);
84
85 return DosResetEventSem((HEV)Condition, &ulPostCount) == NO_ERROR;
86 }
87
88 /*****************************************************************************/
89 /* osl_waitCondition */
90 /*****************************************************************************/
osl_waitCondition(oslCondition Condition,const TimeValue * pTimeout)91 oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition, const TimeValue * pTimeout )
92 {
93 long nTimeout;
94 APIRET rc;
95 OSL_ASSERT(Condition);
96
97 if( pTimeout )
98 nTimeout = pTimeout->Seconds * 1000 + pTimeout->Nanosec / 1000000;
99 else
100 nTimeout = SEM_INDEFINITE_WAIT;
101
102 rc = DosWaitEventSem((HEV)Condition, nTimeout );
103 if( rc == ERROR_TIMEOUT )
104 return osl_cond_result_timeout;
105 if( rc != NO_ERROR )
106 return osl_cond_result_error;
107
108 return osl_cond_result_ok;
109 }
110
111 /*****************************************************************************/
112 /* osl_checkCondition */
113 /*****************************************************************************/
osl_checkCondition(oslCondition Condition)114 sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition)
115 {
116 OSL_ASSERT(Condition);
117
118 return( DosWaitEventSem((HEV)Condition, SEM_IMMEDIATE_RETURN) == NO_ERROR);
119 }
120
121