82 lines
1.6 KiB
C++
82 lines
1.6 KiB
C++
#include <QWaitCondition>
|
|
#include <QMutex>
|
|
#include "util/message.h"
|
|
#include "util/messagequeue.h"
|
|
|
|
const char* Message::m_identifier = "Message";
|
|
|
|
Message::Message() :
|
|
m_destination(NULL),
|
|
m_synchronous(false),
|
|
m_waitCondition(NULL),
|
|
m_mutex(NULL),
|
|
m_complete(0)
|
|
{
|
|
}
|
|
|
|
Message::~Message()
|
|
{
|
|
if(m_waitCondition != NULL)
|
|
delete m_waitCondition;
|
|
if(m_mutex != NULL)
|
|
delete m_mutex;
|
|
}
|
|
|
|
const char* Message::getIdentifier() const
|
|
{
|
|
return m_identifier;
|
|
}
|
|
|
|
bool Message::matchIdentifier(const char* identifier) const
|
|
{
|
|
// Warning: this compares POINTERS - make sure, that each message has a unique name
|
|
// otherwise the linker might "optimize" stuff
|
|
return m_identifier == identifier;
|
|
}
|
|
|
|
bool Message::match(Message* message)
|
|
{
|
|
return message->matchIdentifier(m_identifier);
|
|
}
|
|
|
|
void Message::submit(MessageQueue* queue, void* destination)
|
|
{
|
|
m_destination = destination;
|
|
m_synchronous = false;
|
|
queue->submit(this);
|
|
}
|
|
|
|
int Message::execute(MessageQueue* queue, void* destination)
|
|
{
|
|
m_destination = destination;
|
|
m_synchronous = true;
|
|
|
|
if(m_waitCondition == NULL)
|
|
m_waitCondition = new QWaitCondition;
|
|
if(m_mutex == NULL)
|
|
m_mutex = new QMutex;
|
|
|
|
m_mutex->lock();
|
|
m_complete.testAndSetAcquire(0, 1);
|
|
queue->submit(this);
|
|
while(!m_complete.testAndSetAcquire(0, 1))
|
|
((QWaitCondition*)m_waitCondition)->wait(m_mutex, 100);
|
|
m_complete = 0;
|
|
int result = m_result;
|
|
m_mutex->unlock();
|
|
return result;
|
|
}
|
|
|
|
void Message::completed(int result)
|
|
{
|
|
if(m_synchronous) {
|
|
m_result = result;
|
|
m_complete = 0;
|
|
if(m_waitCondition == NULL)
|
|
qFatal("wait condition is NULL");
|
|
m_waitCondition->wakeAll();
|
|
} else {
|
|
delete this;
|
|
}
|
|
}
|