void ThreadPool::executeOneTaskIfPossible_CRITICAL_SECTION()
{
if ( m_tasks.empty() && m_idleTasks.empty() && (!m_isMainThread.get() || m_mainThreadTasks.empty()) )
m_stateCond.wait( m_stateMutex );
else
{
std::vector<Task *> *taskQueue;
if ( m_isMainThread.get() && !m_mainThreadTasks.empty() )
taskQueue = &m_mainThreadTasks;
else if ( !m_tasks.empty() )
taskQueue = &m_tasks;
else taskQueue = &m_idleTasks;
Task *task = taskQueue->back();
size_t index;
bool keep;
task->preExecute_CRITICAL_SECTION( index, keep );
if ( !keep )
taskQueue->pop_back();
m_stateMutex.release();
try
{
task->execute( index );
}
catch ( Exception e )
{
Util::SimpleString prefixedException = "Exception: " + e.getDesc();
RC::Handle<LogCollector> logCollector = task->getLogCollector();
if ( logCollector )
logCollector->add( prefixedException.data(), prefixedException.length() );
}
catch ( ... )
{
static Util::SimpleString const genericException = "Exception (unknown)";
RC::Handle<LogCollector> logCollector = task->getLogCollector();
if ( logCollector )
logCollector->add( genericException.data(), genericException.length() );
}
m_stateMutex.acquire();
task->postExecute_CRITICAL_SECTION();
if ( task->completed_CRITICAL_SECTION() )
{
void (*finishedCallback)( void * ) = task->getFinishedCallback();
if ( finishedCallback )
finishedCallback( task->getFinishedUserdata() );
task->dispose();
// [pzion 20101108] Must wake waiter because they might be
// waiting on the task completion
m_stateCond.broadcast();
}
}
}
v8::Handle<v8::Value> ClientWrap::JSONExec( v8::Arguments const &args )
{
ClientWrap *wrap = node::ObjectWrap::Unwrap<ClientWrap>( args.This() );
if ( !wrap->m_client )
return v8::ThrowException( v8::String::New( "client has already been closed" ) );
if ( args.Length() != 1 || !args[0]->IsString() )
return v8::ThrowException( v8::String::New( "jsonExec: takes one string parameter (jsonEncodedCommands)" ) );
v8::HandleScope v8HandleScope;
v8::Handle<v8::String> v8JSONEncodedCommands = v8::Handle<v8::String>::Cast( args[0] );
v8::String::Utf8Value v8JSONEncodedCommandsUtf8Value( v8JSONEncodedCommands );
Util::SimpleString jsonEncodedResults;
{
v8::Handle<v8::Object> v8This = args.This();
JSON::Encoder resultJSON( &jsonEncodedResults );
wrap->m_client->jsonExec(
const_cast<char const *>(*v8JSONEncodedCommandsUtf8Value),
size_t(v8JSONEncodedCommandsUtf8Value.length()),
resultJSON
);
}
v8::Handle<v8::String> v8JSONEncodedResults = v8::String::New( jsonEncodedResults.data(), jsonEncodedResults.length() );
return v8HandleScope.Close( v8JSONEncodedResults );
}
void Client::notify( Util::SimpleString const &jsonEncodedNotifications ) const
{
if ( m_clientWrap )
m_clientWrap->notify( jsonEncodedNotifications.data(), jsonEncodedNotifications.length() );
}