/* -*- 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/.
 */
#include "Transmitter.hxx"
#include "IBluetoothSocket.hxx"
#include <sal/log.hxx>

using namespace osl; // Sockets etc.
using namespace sd;

Transmitter::Transmitter( IBluetoothSocket* aSocket )
  : pStreamSocket( aSocket ),
    mFinishRequested( false )
{
}

void SAL_CALL Transmitter::run()
{
    osl_setThreadName("bluetooth Transmitter");

    while ( true )
    {
        mProcessingRequired.wait();

        OString aMessage;
        bool isHighPrio = {};

        {
            ::osl::MutexGuard aGuard(mMutex);

            if (mFinishRequested) {
                return;
            }
            if (!mHighPriority.empty())
            {
                aMessage = mHighPriority.front();
                mHighPriority.pop();
                isHighPrio = true;
            }
            else if (!mLowPriority.empty())
            {
                aMessage = mLowPriority.front();
                mLowPriority.pop();
                isHighPrio = false;
            }
        }

        SAL_INFO("sdremote.bluetooth", "write " << (isHighPrio ? "high prio" : "normal") << " line '" << aMessage << "'");
        // pStreamSocket is owned by Communicator, which joins this thread
        // before destroying pStreamSocket so it can't die here.
        // Sending is SLOW and blocks!
        pStreamSocket->write( aMessage.getStr(), aMessage.getLength() );

        {
            ::osl::MutexGuard aGuard(mMutex);

            if (mLowPriority.empty() && mHighPriority.empty())
            {
                mProcessingRequired.reset();
            }
        }
    }
}

void Transmitter::notifyFinished()
{
    ::osl::MutexGuard aGuard( mMutex );
    mFinishRequested = true;
    mProcessingRequired.set();
}

Transmitter::~Transmitter()
{
}

void Transmitter::addMessage( const OString& aMessage, const Priority aPriority )
{
    ::osl::MutexGuard aGuard( mMutex );
    switch ( aPriority )
    {
        case PRIORITY_LOW:
            mLowPriority.push( aMessage );
            break;
        case PRIORITY_HIGH:
            mHighPriority.push( aMessage );
            break;
    }
    if ( !mProcessingRequired.check() )
    {
        mProcessingRequired.set();
    }
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */