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-rw-r--r--noncore/multimedia/opieplayer2/threadutil.cpp99
1 files changed, 99 insertions, 0 deletions
diff --git a/noncore/multimedia/opieplayer2/threadutil.cpp b/noncore/multimedia/opieplayer2/threadutil.cpp
index 4055c74..5687f42 100644
--- a/noncore/multimedia/opieplayer2/threadutil.cpp
+++ b/noncore/multimedia/opieplayer2/threadutil.cpp
@@ -3,48 +3,49 @@
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "threadutil.h"
#include <qsocketnotifier.h>
#include <pthread.h>
#include <assert.h>
#include <unistd.h>
+#include <errno.h>
using namespace ThreadUtil;
struct Mutex::Data
{
Data()
{
pthread_mutex_init( &mutex, 0 );
}
~Data()
{
pthread_mutex_destroy( &mutex );
}
pthread_mutex_t mutex;
};
Mutex::Mutex()
: d( new Data )
{
}
Mutex::~Mutex()
{
@@ -101,48 +102,146 @@ WaitCondition::~WaitCondition()
}
bool WaitCondition::wait()
{
Mutex m;
m.lock();
return wait( m );
}
bool WaitCondition::wait( Mutex &mutex )
{
return pthread_cond_wait( &d->waitCondition, &mutex.d->mutex );
}
void WaitCondition::wakeOne()
{
pthread_cond_signal( &d->waitCondition );
}
void WaitCondition::wakeAll()
{
pthread_cond_broadcast( &d->waitCondition );
}
+struct Thread::Data
+{
+ Data() : isRunning( false )
+ {}
+
+ pthread_t self;
+ Mutex guard;
+ bool isRunning;
+
+ WaitCondition finishCondition;
+};
+
+extern "C"
+{
+
+void _threadutil_terminate_thread( void *arg )
+{
+ Thread *thr = ( Thread* )arg;
+
+ assert( thr );
+
+ AutoLock locker( thr->d->guard );
+ thr->d->isRunning = false;
+ thr->d->finishCondition.wakeAll();
+}
+
+void *_threadutil_start_thread( void *arg )
+{
+ Thread *thr = ( Thread* )arg;
+
+ pthread_cleanup_push( _threadutil_terminate_thread, thr );
+
+ thr->d->isRunning = true;
+ thr->run();
+
+ pthread_cleanup_pop( true );
+
+ Thread::exit();
+ return 0; // never reached
+}
+
+}
+
+Thread::Thread()
+ : d( new Data )
+{
+}
+
+Thread::~Thread()
+{
+ assert( d->isRunning == false );
+ delete d;
+}
+
+void Thread::start()
+{
+ AutoLock lock( d->guard );
+
+ if ( d->isRunning ) {
+ qDebug( "ThreadUtil::Thread::start() called for running thread." );
+ return;
+ }
+
+ pthread_attr_t attributes;
+ pthread_attr_init( &attributes );
+ pthread_attr_setscope( &attributes, PTHREAD_SCOPE_SYSTEM );
+ int err = pthread_create( &d->self, &attributes, _threadutil_start_thread, ( void* )this );
+ if ( err != 0 ) {
+ qDebug( "ThreadUtil::Thread::start() : can't create thread: %s", strerror( err ) );
+ pthread_attr_destroy( &attributes );
+ return;
+ }
+ pthread_attr_destroy( &attributes );
+}
+
+void Thread::terminate()
+{
+ AutoLock lock( d->guard );
+ if ( !d->isRunning )
+ return;
+
+ pthread_cancel( d->self );
+}
+
+bool Thread::wait()
+{
+ AutoLock lock( d->guard );
+ if ( !d->isRunning )
+ return true;
+
+ return d->finishCondition.wait( d->guard );
+}
+
+void Thread::exit()
+{
+ pthread_exit( 0 );
+}
+
OnewayNotifier::OnewayNotifier()
{
int fds[ 2 ];
pipe( fds );
m_readFd = fds[ 0 ];
m_writeFd = fds[ 1 ];
m_notifier = new QSocketNotifier( m_readFd, QSocketNotifier::Read );
connect( m_notifier, SIGNAL( activated( int ) ),
this, SLOT( wakeUp() ) );
}
OnewayNotifier::~OnewayNotifier()
{
delete m_notifier;
::close( m_readFd );
::close( m_writeFd );
}
void OnewayNotifier::notify()
{
const char c = 42;
::write( m_writeFd, &c, 1 );