我正在尝试将 Qt 控制台应用程序与另一个用 C 编写的控制台应用程序(国际象棋引擎 - TSCP)进行通信。
我创建了这个类:
#include "engine.h"
Engine::Engine(QObject *parent) :
QProcess(parent)
{
}
Engine::~Engine()
{
delete process;
}
void Engine::startProcess()
{
process = new QProcess( this );
process->setReadChannel( QProcess::StandardOutput );
connect( process, SIGNAL(error(QProcess::ProcessError)), this, SLOT(error(QProcess::ProcessError)) );
connect( process, SIGNAL(finished(int,QProcess::ExitStatus)), this, SLOT(finished(int,QProcess::ExitStatus)) );
connect( process, SIGNAL(readyReadStandardError()), this, SLOT(readyReadStandardError()) );
connect( process, SIGNAL(readyReadStandardOutput()), this, SLOT(readyReadStandardOutput()) );
connect( process, SIGNAL(started()), this, SLOT(started()) );
connect( process, SIGNAL(stateChanged(QProcess::ProcessState)), this, SLOT(stateChanged(QProcess::ProcessState)) );
//process->start( "/usr/bin/konsole --nofork -e ./TSCP" );
process->start( "./TSCP" );
process->waitForStarted(-1);
}
void Engine::stopProcess()
{
//process->write( "bye" );
process->closeWriteChannel();
}
void Engine::Write( QByteArray writeBuff )
{
writeBuff.clear();
qDebug() << "Sending command: " + writeBuff;
process->write( writeBuff );
//process->closeWriteChannel();
}
QByteArray Engine::Read()
{
readBuffer = process->readAllStandardOutput();
return readBuffer;
}
void Engine::error( QProcess::ProcessError error )
{
qDebug() << "Error!";
qDebug() << error;
}
void Engine::finished( int exitCode, QProcess::ExitStatus exitStatus )
{
qDebug() << "The process has finished.";
qDebug( "Exit code: %i", exitCode );
qDebug( "Exit status: %i", exitStatus );
}
void Engine::readyReadStandardError()
{
qDebug() << "Ready to read error.";
qDebug() << process->readAllStandardError();
}
void Engine::readyReadStandardOutput()
{
qDebug() << "The output:";
readBuffer = process->readAllStandardOutput();
qDebug() << readBuffer;
//process->closeReadChannel( QProcess::StandardOutput );
//process->waitForBytesWritten();
}
void Engine::started()
{
qDebug() << "The process has started.";
}
void Engine::stateChanged( QProcess::ProcessState newState )
{
switch( newState )
{
case 0:
qDebug() << "The process is not running.";
break;
case 1:
qDebug() << "The process is starting, but the program has not yet been invoked.";
break;
case 2:
qDebug() << "The process is running and is ready for reading and writing.";
break;
}
}
我的 main.cpp 看起来就像这样:
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
qDebug() << "----------------------------------";
Engine engine;
engine.startProcess();
engine.Write( "on" );
qDebug() << "----------------------------------";
return a.exec();
}
我正在努力实现:
- 启动进程 - 国际象棋引擎。
- 向进程-引擎发送命令。
- 接收答案(能够显示、处理)。
- 继续通信(步骤 2、3)。
- 关闭进程。
第一步和最后一步我没有任何困难 - 它正在工作。问题是我无法与国际象棋引擎(控制台应用程序)正常通信。
我肯定做错了什么!;) 如果我取消注释 process->closeWriteChannel(); 在 void Engine::Write( QByteArray writeBuff ) 函数中,我可以写一个命令(例如“on”开始游戏)并接收正确的输出 - 来自国际象棋引擎的响应(移动)。我无法发送下一个推荐,因为通道已关闭(很明显)。如果此行被评论,我将无法收到任何信息。
我想要做:
启动流程:
发动机发动机;engine.startProcess();
沟通(发送用户并接收引擎移动):
engine.Write("a2a3"); 引擎.Write("b2b3"); engine.Write("c2c3");
关闭进程。
我尽力找到答案(帮助,谷歌)。你能帮我找到解决办法吗?
谢谢!