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/*
* The ManaPlus Client
* Copyright (C) 2014-2017 The ManaPlus Developers
*
* This file is part of The ManaPlus Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "net/ipc.h"
#include "gui/windows/chatwindow.h"
#ifndef DYECMD
#include "input/inputmanager.h"
#endif // DYECMD
#include "utils/delete2.h"
#include "utils/sdlhelper.h"
#include "utils/stringutils.h"
#include "debug.h"
IPC *ipc = nullptr;
IPC::IPC() :
mNumReqs(0),
mSocket(nullptr),
mDelayedCommands(),
mThread(nullptr),
mMutex(SDL_CreateMutex()),
mPort(44007U),
mThreadLocked(false),
mListen(false)
{
}
IPC::~IPC()
{
mListen = false;
if (mSocket)
{
TcpNet::closeSocket(mSocket);
mSocket = nullptr;
}
SDL_DestroyMutex(mMutex);
mMutex = nullptr;
int status;
if (mThread && SDL_GetThreadID(mThread))
SDL_WaitThread(mThread, &status);
mThread = nullptr;
}
bool IPC::init()
{
IPaddress ip;
if (TcpNet::resolveHost(&ip, nullptr, mPort) == -1)
{
logger->log("IPC: resolveHost error: %s\n", TcpNet::getError());
return false;
}
mSocket = TcpNet::open(&ip);
if (!mSocket)
{
logger->log("IPC: open error: %s", TcpNet::getError());
return false;
}
mThread = SDL::createThread(&acceptLoop, "ipc", this);
if (!mThread)
{
logger->log("IPC: unable to create acceptLoop thread");
return false;
}
return true;
}
int IPC::acceptLoop(void *ptr)
{
if (!ptr)
return 1;
IPC *const ipc1 = reinterpret_cast<IPC*>(ptr);
const int max_length = 1024;
const TcpNet::SocketSet set = TcpNet::allocSocketSet(1);
TcpNet::addSocket(set, ipc1->mSocket);
ipc1->mListen = true;
while (ipc1->mListen)
{
TcpNet::checkSockets(set, 250);
if (!TcpNet::socketReady(ipc1->mSocket))
continue;
const TcpNet::Socket sock = TcpNet::accept(ipc1->mSocket);
if (!sock)
{
logger->log_r("IPC: unable to accept connection");
continue;
}
char data[max_length] = {0};
int result = TcpNet::recv(sock, data, max_length);
if (result <= 0)
{
logger->log_r("IPC: unable to accept connection");
TcpNet::closeSocket(sock);
continue;
}
std::string req(data);
trim(req);
logger->log_r("IPC command: %s", req.c_str());
ipc1->mThreadLocked = true;
SDL_mutexP(ipc1->mMutex);
ipc1->mDelayedCommands.push_back(req);
SDL_mutexV(ipc1->mMutex);
ipc1->mThreadLocked = false;
ipc1->mNumReqs ++;
const std::string resp = strprintf("[%u] %s\n",
ipc1->mNumReqs, req.c_str());
const char *const respc = resp.c_str();
const int len = CAST_S32(strlen(respc)) + 1;
result = TcpNet::send(sock, respc, len);
if (result < len)
{
logger->log_r("IPC: send error: %s\n", TcpNet::getError());
TcpNet::closeSocket(sock);
continue;
}
TcpNet::closeSocket(sock);
}
TcpNet::closeSocket(ipc1->mSocket);
TcpNet::freeSocketSet(set);
ipc1->mSocket = nullptr;
ipc1->mThread = nullptr;
return 0;
}
void IPC::stop()
{
if (!ipc)
return;
logger->log("Stopping IPC...");
delete2(ipc);
}
void IPC::start()
{
if (ipc)
return;
unsigned short port(44007);
if (getenv("IPC_PORT"))
port = static_cast<unsigned short>(atoi(getenv("IPC_PORT")));
logger->log("Starting IPC...");
ipc = new IPC;
for (int f = port; f < 65535; f ++)
{
ipc->setPort(static_cast<unsigned short>(f));
logger->log(" -> trying port %d...", f);
if (ipc->init())
{
logger->log(" -> Port %d selected", f);
return;
}
else
{
port ++;
}
}
delete2(ipc);
}
void IPC::flush()
{
if (!mThreadLocked)
{
SDL_mutexP(mMutex);
#ifndef DYECMD
// probably need enable only commands in tool
if (chatWindow)
{
FOR_EACH (std::vector<std::string>::const_iterator, it,
mDelayedCommands)
{
chatWindow->chatInput(*it);
}
}
else
{
FOR_EACH (std::vector<std::string>::const_iterator, it,
mDelayedCommands)
{
std::string msg = *it;
if (msg.empty() || msg[0] != '/')
continue;
msg = msg.substr(1);
const size_t pos = msg.find(' ');
const std::string type(msg, 0, pos);
std::string args(msg,
pos == std::string::npos ? msg.size() : pos + 1);
args = trim(args);
inputManager.executeChatCommand(type, args, nullptr);
}
}
#endif // DYECMD
mDelayedCommands.clear();
SDL_mutexV(mMutex);
}
}
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