如果我CreateProcess()
多次使用,可以共享PROCESS_INFORMATION
和STARTUPINFO
变量吗?或者这真的是不好的做法?我已经阅读了很多文档,但是我找不到任何关于CreateProcess()
多次处理调用的示例。
例如,假设我有下面的假功能:
int SampleClass::sampleFn1(){
//Variables
STARTUPINFOW siStartInfo;
PROCESS_INFORMATION piProcInfo;
memset(&siStartInfo, 0, sizeof(siStartInfo));
memset(&piProcInfo, 0, sizeof(piProcInfo));
siStartInfo.cb = sizeof(siStartInfo);
//let us assume cmdPath = cmd.exe directory, and cmdTxtPtr has correct text
if(!CreateProcess(cmdPath, cmdTxtPtr, NULL, NULL, false, 0,
NULL, NULL, &siStartInfo, &piProcInfo)){
return 1; //failed at step 1
}
if(!CreateProcess(cmdPath,_T("/C ant debug"),NULL,NULL,false,0,NULL,
(LPCTSTR)directory,&siStartInfo,&piProcInfo)){
return 2; //failed at debug
}
WaitForSingleObject(piProcInfo.hProcess,10000);
result = GetExitCodeProcess(piProcInfo.hProcess,&exitCode);
CloseHandle(piProcInfo.hProcess);
CloseHandle(piProcInfo.hThread);
return 0;//finished
}
一个类似的功能恰好在我的程序中工作,但我想让它尽可能安全。
或者......我应该做一些类似下面的代码的事情:
int SampleClass::sampleFn2(){
//Variables
STARTUPINFOW siStartInfo;
PROCESS_INFORMATION piProcInfo;
memset(&siStartInfo, 0, sizeof(siStartInfo));
memset(&piProcInfo, 0, sizeof(piProcInfo));
siStartInfo.cb = sizeof(siStartInfo);
//let us assume cmdPath = cmd.exe directory, and cmdTxtPtr has correct text
if(!CreateProcess(cmdPath, cmdTxtPtr, NULL, NULL, false,
0, NULL, NULL, &siStartInfo, &piProcInfo)){
return 1; //failed at update project
}
WaitForSingleObject(piProcInfo.hProcess,10000);
result = GetExitCodeProcess(piProcInfo.hProcess,&exitCode);
CloseHandle(piProcInfo.hProcess);
CloseHandle(piProcInfo.hThread);
memset(&siStartInfo, 0, sizeof(siStartInfo));
memset(&piProcInfo, 0, sizeof(piProcInfo));
siStartInfo.cb = sizeof(siStartInfo);
if(!CreateProcess(cmdPath,_T("/C ant debug"),NULL,NULL,
false,0,NULL,(LPCTSTR)directory,&siStartInfo,&piProcInfo)){
return 2; //failed at debug
}
WaitForSingleObject(piProcInfo.hProcess,10000);
result = GetExitCodeProcess(piProcInfo.hProcess,&exitCode);
CloseHandle(piProcInfo.hProcess);
CloseHandle(piProcInfo.hThread);
return 0;//finished
}
还是他们都处理不好?谢谢你。