summaryrefslogtreecommitdiffstats
path: root/sal/osl/unx/conditn.cxx
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--sal/osl/unx/conditn.cxx270
1 files changed, 270 insertions, 0 deletions
diff --git a/sal/osl/unx/conditn.cxx b/sal/osl/unx/conditn.cxx
new file mode 100644
index 000000000..602240922
--- /dev/null
+++ b/sal/osl/unx/conditn.cxx
@@ -0,0 +1,270 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <assert.h>
+
+#include "system.hxx"
+#include "unixerrnostring.hxx"
+#include <sal/log.hxx>
+#include <sal/types.h>
+
+#include <osl/conditn.h>
+#include <osl/time.h>
+
+namespace {
+
+struct oslConditionImpl
+{
+ pthread_cond_t m_Condition;
+ pthread_mutex_t m_Lock;
+ bool m_State;
+};
+
+}
+
+oslCondition SAL_CALL osl_createCondition()
+{
+ oslConditionImpl* pCond;
+ int nRet=0;
+
+ pCond = static_cast<oslConditionImpl*>(malloc(sizeof(oslConditionImpl)));
+
+ if ( pCond == nullptr )
+ {
+ return nullptr;
+ }
+
+ pCond->m_State = false;
+
+ /* init condition variable with default attr. (PTHREAD_PROCESS_PRIVAT) */
+ nRet = pthread_cond_init(&pCond->m_Condition, PTHREAD_CONDATTR_DEFAULT);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "pthread_cond_init failed: " << UnixErrnoString(nRet) );
+
+ free(pCond);
+ return nullptr;
+ }
+
+ nRet = pthread_mutex_init(&pCond->m_Lock, PTHREAD_MUTEXATTR_DEFAULT);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "pthread_mutex_init failed: " << UnixErrnoString(nRet) );
+
+ nRet = pthread_cond_destroy(&pCond->m_Condition);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "pthread_cond_destroy failed: " << UnixErrnoString(nRet) );
+
+ free(pCond);
+ pCond = nullptr;
+ }
+
+ SAL_INFO( "sal.osl.condition", "osl_createCondition(): " << pCond );
+
+ return static_cast<oslCondition>(pCond);
+}
+
+void SAL_CALL osl_destroyCondition(oslCondition Condition)
+{
+ oslConditionImpl* pCond;
+
+ pCond = static_cast<oslConditionImpl*>(Condition);
+
+ SAL_INFO( "sal.osl.condition", "osl_destroyCondition(" << pCond << ")" );
+
+ if ( pCond )
+ {
+ int nRet = pthread_cond_destroy(&pCond->m_Condition);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "pthread_cond_destroy failed: " << UnixErrnoString(nRet) );
+ nRet = pthread_mutex_destroy(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "pthread_mutex_destroy failed: " << UnixErrnoString(nRet) );
+
+ free(Condition);
+ }
+}
+
+sal_Bool SAL_CALL osl_setCondition(oslCondition Condition)
+{
+ oslConditionImpl* pCond;
+ int nRet=0;
+
+ assert(Condition);
+ pCond = static_cast<oslConditionImpl*>(Condition);
+
+ nRet = pthread_mutex_lock(&pCond->m_Lock);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_setCondition(" << pCond << "): pthread_mutex_lock failed: " << UnixErrnoString(nRet) );
+ return false;
+ }
+
+ pCond->m_State = true;
+ nRet = pthread_cond_broadcast(&pCond->m_Condition);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_setCondition(" << pCond << "): pthread_cond_broadcast failed: " << UnixErrnoString(nRet) );
+ // try to unlock the mutex
+ pthread_mutex_unlock(&pCond->m_Lock);
+ return false;
+ }
+
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_setCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+ return false;
+ }
+
+ SAL_INFO( "sal.osl.condition", "osl_setCondition(" << pCond << ")" );
+
+ return true;
+
+}
+
+sal_Bool SAL_CALL osl_resetCondition(oslCondition Condition)
+{
+ oslConditionImpl* pCond;
+ int nRet=0;
+
+ assert(Condition);
+
+ pCond = static_cast<oslConditionImpl*>(Condition);
+
+ nRet = pthread_mutex_lock(&pCond->m_Lock);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_resetCondition(" << pCond << "): pthread_mutex_lock failed: " << UnixErrnoString(nRet) );
+ return false;
+ }
+
+ pCond->m_State = false;
+
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_resetCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+ return false;
+ }
+
+ SAL_INFO( "sal.osl.condition", "osl_resetCondition(" << pCond << ")" );
+
+ return true;
+}
+
+oslConditionResult SAL_CALL osl_waitCondition(oslCondition Condition, const TimeValue* pTimeout)
+{
+ oslConditionImpl* pCond;
+ int nRet=0;
+
+ assert(Condition);
+ pCond = static_cast<oslConditionImpl*>(Condition);
+
+ SAL_INFO( "sal.osl.condition", "osl_waitCondition(" << pCond << ")" );
+
+ nRet = pthread_mutex_lock(&pCond->m_Lock);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_waitCondition(" << pCond << "): pthread_mutex_lock failed: " << UnixErrnoString(nRet) );
+ return osl_cond_result_error;
+ }
+
+ if ( pTimeout )
+ {
+ if ( ! pCond->m_State )
+ {
+ struct timeval tp;
+ struct timespec to;
+
+ gettimeofday(&tp, nullptr);
+
+ SET_TIMESPEC( to, tp.tv_sec + pTimeout->Seconds,
+ tp.tv_usec * 1000 + pTimeout->Nanosec );
+
+ /* spurious wake up prevention */
+ do
+ {
+ const int ret = pthread_cond_timedwait(&pCond->m_Condition, &pCond->m_Lock, &to);
+ if ( ret != 0 )
+ {
+ if ( ret == ETIME || ret == ETIMEDOUT )
+ {
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "osl_waitCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+
+ return osl_cond_result_timeout;
+ }
+ if ( ret != EINTR )
+ {
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "osl_waitCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+ return osl_cond_result_error;
+ }
+ }
+ }
+ while ( !pCond->m_State );
+ }
+ }
+ else
+ {
+ while ( !pCond->m_State )
+ {
+ nRet = pthread_cond_wait(&pCond->m_Condition, &pCond->m_Lock);
+ if ( nRet != 0 )
+ {
+ SAL_WARN( "sal.osl.condition", "osl_waitCondition(" << pCond << "): pthread_cond_wait failed: " << UnixErrnoString(nRet) );
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "osl_waitCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+
+ return osl_cond_result_error;
+ }
+ }
+ }
+
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "osl_waitCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+
+ SAL_INFO( "sal.osl.condition", "osl_waitCondition(" << pCond << "): OK" );
+
+ return osl_cond_result_ok;
+}
+
+sal_Bool SAL_CALL osl_checkCondition(oslCondition Condition)
+{
+ bool State;
+ oslConditionImpl* pCond;
+ int nRet=0;
+
+ assert(Condition);
+ pCond = static_cast<oslConditionImpl*>(Condition);
+
+ nRet = pthread_mutex_lock(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "osl_checkCondition(" << pCond << "): pthread_mutex_lock failed: " << UnixErrnoString(nRet) );
+
+ State = pCond->m_State;
+
+ nRet = pthread_mutex_unlock(&pCond->m_Lock);
+ SAL_WARN_IF( nRet != 0, "sal.osl.condition", "osl_checkCondition(" << pCond << "): pthread_mutex_unlock failed: " << UnixErrnoString(nRet) );
+
+ SAL_INFO( "sal.osl.condition", "osl_checkCondition(" << pCond << "): " << (State ? "YES" : "NO") );
+
+ return State;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 11:59:29 +0000