/*
Performance test to see how many uncontended
locks and unlocks can be performed in a given
timeframe.
*/
void tst_QSystemReadWriteLock::uncontendedLocks()
{
uint read=0;
uint write=0;
uint count=0;
int millisecs=1000;
{
QTime t;
t.start();
while(t.elapsed() <millisecs)
{
++count;
}
}
{
QSystemReadWriteLock rwLock("Viper", QSystemReadWriteLock::Create);
QTime t;
t.start();
while(t.elapsed() <millisecs)
{
rwLock.lockForRead();
rwLock.unlock();
++read;
}
}
{
QSystemReadWriteLock rwLock("Viper", QSystemReadWriteLock::Create);
QTime t;
t.start();
while(t.elapsed() <millisecs)
{
rwLock.lockForWrite();
rwLock.unlock();
++write;
}
}
qDebug("during %d millisecs:", millisecs);
qDebug("counted to %u", count);
qDebug("%u uncontended read locks/unlocks", read);
qDebug("%u uncontended write locks/unlocks", write);
}
UpnpWebFileHandle CESContentDirectory_Device_Android::FileOpen(const char *filename,IN enum UpnpOpenFileMode Mode)
{
int nret = 0;
// if(strcasecmp(SPECIAL_DEVICE,filename) == 0)
// {
// return (UpnpWebFileHandle)m_pSpecialDevice->FileOpen();
// }
JNIEnv *env = GetJNIEnv();
jstring jid = env->NewStringUTF(filename);
jobject jreturn = env->CallObjectMethod(m_jCallback,methIdGetFileInfo,jid);
if(!jreturn)
{
Trace("File not found %s\n",filename);
nret = -1;
}
else
{
jstring jrealPath = (jstring)env->GetObjectField(jreturn,MetaDataInfo::jrealPath);
if(jrealPath)
{
icstring realpath = env->GetStringUTFChars(jrealPath,NULL);
int fd = open(realpath,O_RDONLY);
if(fd == -1)
{
Trace("fail to open %s\n",realpath);
nret = -1;
}
else
{
IUpnpUtil::CQuickRWLock rwLock(&m_lock,FALSE);
m_fileHandleList.push_back(fd);
nret = fd;
}
env->ReleaseStringUTFChars(jrealPath,realpath);
}
else
{
nret = -1;
}
}
if(jid)
env->DeleteLocalRef(jid);
if(jreturn)
env->DeleteLocalRef(jreturn);
DetachJNIThread();
Trace("File opened %d\n",nret);
return (UpnpWebFileHandle)nret ;
}
Ticket MessageManager::StartConversation(int socketFD)
{
Lock lock(&m_endpointsMutex);
//If the endpoint doesn't exist, then it was closed. Just exit with failure
if(m_endpoints.count(socketFD) == 0)
{
return Ticket();
}
Lock rwLock(m_endpoints[socketFD].second, READ_LOCK);
if(m_endpoints[socketFD].first == NULL)
{
return Ticket();
}
return Ticket(m_endpoints[socketFD].first->StartConversation(), 0, false, false, socketFD, m_endpoints[socketFD].second);
}
