author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 06 Jul 2010 14:50:35 +0300 | |
changeset 32 | 94fc26b6e006 |
parent 31 | 8dfd592727cb |
child 53 | eabc8c503852 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Platform Specific Utility Functions |
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* |
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*/ |
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|
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#include <pthread.h> |
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#include <semaphore.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <assert.h> |
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#include <errno.h> |
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|
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#include "xaplatform.h" |
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/** MACROS **/ |
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/********************************************************************** |
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* mutex management |
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**********************************************************************/ |
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/* define next if platform supports posix error checking mutex type */ |
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#undef _MUTEXERRORSUPPORT |
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|
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#ifdef _MUTEXERRORSUPPORT |
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typedef pthread_mutex_t XA_MTX; |
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#else |
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typedef struct |
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{ |
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pthread_mutex_t mutex; |
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pthread_t owner; |
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} XA_MTX; |
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#endif |
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|
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XAresult XAImpl_CreateMutex(XAImplMutexHandle *mtx) |
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{ |
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XA_MTX *pMtx = (XA_MTX *) malloc(sizeof(XA_MTX)); |
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assert(mtx); |
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if (pMtx) |
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{ |
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pthread_mutexattr_t *pAttr = NULL; |
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#ifdef _MUTEXERRORSUPPORT |
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pthread_mutexattr_t attr; |
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pAttr = &attr; |
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pthread_mutexattr_init(pAttr); |
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pthread_mutexattr_settype(pAttr, PTHREAD_MUTEX_ERRORCHECK); |
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if(pthread_mutex_init(pMtx, pAttr)) |
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#else |
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if (pthread_mutex_init(&(pMtx->mutex), pAttr)) |
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#endif |
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{ |
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free(pMtx); |
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*mtx = NULL; |
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return XA_RESULT_INTERNAL_ERROR; |
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} |
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*mtx = (XAImplMutexHandle) pMtx; |
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return XA_RESULT_SUCCESS; |
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} |
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else |
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{ |
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return XA_RESULT_MEMORY_FAILURE; |
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} |
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} |
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|
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XAresult XAImpl_LockMutex(XAImplMutexHandle mtx) |
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{ |
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XA_MTX *pMtx = (XA_MTX*) mtx; |
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assert(pMtx); |
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#ifdef _MUTEXERRORSUPPORT |
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if(pthread_mutex_lock(pMtx)) |
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{ |
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return XA_RESULT_PRECONDITIONS_VIOLATED; |
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} |
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#else |
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if (pthread_self() == pMtx->owner || pthread_mutex_unlock(&(pMtx->mutex))) |
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{ |
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return XA_RESULT_PRECONDITIONS_VIOLATED; |
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} |
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pMtx->owner = pthread_self(); |
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#endif |
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return XA_RESULT_SUCCESS; |
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} |
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XAresult XAImpl_TryLockMutex(XAImplMutexHandle mtx) |
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{ |
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XA_MTX *pMtx = (XA_MTX*) mtx; |
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XAint32 mutexRet; |
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XAresult ret = XA_RESULT_SUCCESS; |
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assert(pMtx); |
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|
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#ifdef _MUTEXERRORSUPPORT |
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parents:
diff
changeset
|
102 |
mutexRet = pthread_ mutex_trylock(pMtx); |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
103 |
switch (mutexRet) |
31
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12
diff
changeset
|
104 |
{ |
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12
diff
changeset
|
105 |
case EBUSY: |
12
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parents:
diff
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|
106 |
/* if mutex is already locked, return permission denied */ |
31
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diff
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|
107 |
ret = XA_RESULT_PERMISSION_DENIED; |
12
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Revision: 201011
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diff
changeset
|
108 |
break; |
31
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diff
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|
109 |
case 0: |
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|
110 |
ret = XA_RESULT_SUCCESS; |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
111 |
break; |
31
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Revision: 201023
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12
diff
changeset
|
112 |
default: |
12
5a06f39ad45b
Revision: 201011
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diff
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|
113 |
ret = XA_RESULT_PRECONDITIONS_VIOLATED; |
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diff
changeset
|
114 |
break; |
31
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Revision: 201023
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diff
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|
115 |
} |
12
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|
116 |
#else |
31
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|
117 |
if (pthread_self() == pMtx->owner) |
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|
118 |
{ |
12
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diff
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|
119 |
return XA_RESULT_PRECONDITIONS_VIOLATED; |
31
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|
120 |
} |
12
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|
121 |
|
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|
122 |
mutexRet = pthread_mutex_trylock(&(pMtx->mutex)); |
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Revision: 201011
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|
123 |
switch (mutexRet) |
31
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|
124 |
{ |
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|
125 |
case EBUSY: |
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|
126 |
/* if mutex is already locked, return permission denied */ |
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|
127 |
ret = XA_RESULT_PERMISSION_DENIED; |
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Revision: 201023
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diff
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|
128 |
break; |
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Revision: 201023
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diff
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|
129 |
case 0: |
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Revision: 201023
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|
130 |
pMtx->owner = pthread_self(); |
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Revision: 201023
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|
131 |
ret = XA_RESULT_SUCCESS; |
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Revision: 201023
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diff
changeset
|
132 |
break; |
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Revision: 201023
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diff
changeset
|
133 |
default: |
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Revision: 201023
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12
diff
changeset
|
134 |
ret = XA_RESULT_PRECONDITIONS_VIOLATED; |
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Revision: 201023
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diff
changeset
|
135 |
break; |
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Revision: 201023
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12
diff
changeset
|
136 |
} |
12
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Revision: 201011
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parents:
diff
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|
137 |
#endif |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
138 |
return ret; |
31
8dfd592727cb
Revision: 201023
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diff
changeset
|
139 |
} |
12
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Revision: 201011
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parents:
diff
changeset
|
140 |
|
31
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Revision: 201023
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|
141 |
XAresult XAImpl_UnlockMutex(XAImplMutexHandle mtx) |
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Revision: 201023
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|
142 |
{ |
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Revision: 201023
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|
143 |
XA_MTX *pMtx = (XA_MTX*) mtx; |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
144 |
assert(pMtx); |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
145 |
#ifdef _MUTEXERRORSUPPORT |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
146 |
if(pthread_mutex_lock(pMtx)) |
31
8dfd592727cb
Revision: 201023
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diff
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|
147 |
{ |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
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|
148 |
return XA_RESULT_PRECONDITIONS_VIOLATED; |
31
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Revision: 201023
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diff
changeset
|
149 |
} |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
150 |
#else |
31
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Revision: 201023
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12
diff
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|
151 |
if (pthread_self() != pMtx->owner || pthread_mutex_unlock(&(pMtx->mutex))) |
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
152 |
{ |
12
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Revision: 201011
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parents:
diff
changeset
|
153 |
return XA_RESULT_PRECONDITIONS_VIOLATED; |
31
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
154 |
} |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
155 |
// Changing the below value to 0 since owner is an unsigned int. |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
156 |
// pMtx->owner = -1; |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
157 |
pMtx->owner = 0; |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
158 |
#endif |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
159 |
return XA_RESULT_SUCCESS; |
31
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
160 |
} |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
161 |
|
31
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Revision: 201023
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12
diff
changeset
|
162 |
void XAImpl_DeleteMutex(XAImplMutexHandle mtx) |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
163 |
{ |
31
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
164 |
XA_MTX *pMtx = (XA_MTX*) mtx; |
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
12
diff
changeset
|
165 |
if (pMtx) |
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
166 |
{ |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
167 |
#ifdef _MUTEXERRORSUPPORT |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
168 |
pthread_mutex_destroy(pMtx); |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
169 |
#else |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
170 |
pthread_mutex_destroy(&(pMtx->mutex)); |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
171 |
#endif |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
172 |
free(pMtx); |
31
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
173 |
} |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
174 |
} |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
175 |
|
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
176 |
/********************************************************************** |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
177 |
* semaphores |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
178 |
**********************************************************************/ |
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
179 |
|
31
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Revision: 201023
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12
diff
changeset
|
180 |
XAresult XAImpl_CreateSemaphore(XAImplSemHandle *sem) |
8dfd592727cb
Revision: 201023
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12
diff
changeset
|
181 |
{ |
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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12
diff
changeset
|
182 |
sem_t *pSem = (sem_t*) malloc(sizeof(sem_t)); |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
183 |
assert(sem); |
31
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
12
diff
changeset
|
184 |
if (pSem) |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
185 |
{ |
31
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
12
diff
changeset
|
186 |
if (sem_init(pSem, 0, 0)) |
8dfd592727cb
Revision: 201023
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12
diff
changeset
|
187 |
{ |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
188 |
free(pSem); |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
189 |
*sem = NULL; |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
190 |
return XA_RESULT_INTERNAL_ERROR; |
31
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
12
diff
changeset
|
191 |
} |
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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12
diff
changeset
|
192 |
*sem = (XAImplSemHandle) pSem; |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
193 |
return XA_RESULT_SUCCESS; |
31
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
12
diff
changeset
|
194 |
} |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
195 |
else |
31
8dfd592727cb
Revision: 201023
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12
diff
changeset
|
196 |
{ |
12
5a06f39ad45b
Revision: 201011
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parents:
diff
changeset
|
197 |
return XA_RESULT_MEMORY_FAILURE; |
31
8dfd592727cb
Revision: 201023
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
12
diff
changeset
|
198 |
} |
12
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
199 |
} |
5a06f39ad45b
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
200 |
|
31
8dfd592727cb
Revision: 201023
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12
diff
changeset
|
201 |
XAresult XAImpl_WaitSemaphore(XAImplSemHandle sem) |
8dfd592727cb
Revision: 201023
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12
diff
changeset
|
202 |
{ |
8dfd592727cb
Revision: 201023
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parents:
12
diff
changeset
|
203 |
sem_t* pSem = (sem_t*) sem; |
12
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assert(pSem); |
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sem_wait(pSem); |
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return XA_RESULT_SUCCESS; |
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} |
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|
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XAresult XAImpl_PostSemaphore(XAImplSemHandle sem) |
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{ |
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sem_t *pSem = (sem_t*) sem; |
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assert(pSem); |
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sem_post(pSem); |
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return XA_RESULT_SUCCESS; |
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} |
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|
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void XAImpl_DeleteSemaphore(XAImplSemHandle sem) |
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{ |
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sem_t *pSem = (sem_t*) sem; |
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if (pSem) |
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{ |
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sem_destroy(pSem); |
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free(pSem); |
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} |
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} |
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|
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/********************************************************************** |
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* THREADS |
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**********************************************************************/ |
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|
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XAresult XAImpl_CreateThreadHandle(XAImplThreadHandle *thd) |
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{ |
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pthread_t *pThd = (pthread_t*) malloc(sizeof(pthread_t)); |
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assert(thd); |
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if (!pThd) |
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{ |
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return XA_RESULT_MEMORY_FAILURE; |
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} |
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*thd = (XAImplThreadHandle) pThd; |
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return XA_RESULT_SUCCESS; |
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} |
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|
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XAresult XAImpl_StartThread(XAImplThreadHandle thd, void *thdattrib, |
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XAImplThreadFunction thdfunc, void* thdfuncargs) |
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{ |
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pthread_t *pThd = (pthread_t*) thd; |
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assert(thd); |
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if (pthread_create(pThd, thdattrib, thdfunc, thdfuncargs)) |
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{ |
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return XA_RESULT_INTERNAL_ERROR; |
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} |
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return XA_RESULT_SUCCESS; |
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} |
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|
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void XAImpl_CancelThread(XAImplThreadHandle thd) |
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{ |
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// int res; |
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// TL: TODO: There is no pthread_cancel API in S60, need to replace |
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//res = pthread_cancel(*pThd); |
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|
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} |
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|
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void XAImpl_ExitThread(XAImplThreadHandle thd) |
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{ |
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pthread_exit(NULL); |
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} |
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|
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void XAImpl_DeleteThreadHandle(XAImplThreadHandle thd) |
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{ |
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pthread_t *pThd = (pthread_t*) thd; |
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if (pThd) |
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{ |
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free(pThd); |
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} |
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} |
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