000
27.10.2003, 11:42 Uhr
FloSoft
Medialer Over-Flow
(Administrator)
|
Hallo,
ich erstelle eine Pipe mit folgender Funktion:
| C++: |
int StartPipe(CString strCommand, CString *strOutput)
{
CString strDir = GetWorkingDir(); // Funktion liefert Arbeitsverzeichnis der Anwendung
HANDLE readHandle = NULL;
HANDLE writeHandle = NULL;
HANDLE stdHandle = NULL;
DWORD bytesRead = 0;
SECURITY_ATTRIBUTES sa;
PROCESS_INFORMATION pi;
STARTUPINFO si;
ZeroMemory(&sa,sizeof(SECURITY_ATTRIBUTES));
ZeroMemory(&pi,sizeof(PROCESS_INFORMATION));
ZeroMemory(&si,sizeof(STARTUPINFO));
sa.bInheritHandle=true;
sa.lpSecurityDescriptor=NULL;
sa.nLength=sizeof(SECURITY_ATTRIBUTES);
si.cb=sizeof(STARTUPINFO);
si.dwFlags=STARTF_USESHOWWINDOW;
si.wShowWindow=SW_HIDE;
if (!CreatePipe(&readHandle,&writeHandle,&sa,NULL))
{
OutputDebugString("cmd: CreatePipe failed!\n");
return 0;
}
stdHandle=GetStdHandle(STD_OUTPUT_HANDLE);
if (!SetStdHandle(STD_OUTPUT_HANDLE,writeHandle))
{
OutputDebugString("cmd: SetStdHandle(writeHandle) failed!\n");
return 0;
}
char *cmd = strCommand.GetBuffer(strCommand.GetLength());
if (!CreateProcess(NULL,cmd,NULL,NULL,TRUE,DETACHED_PROCESS,NULL,strDir,&si,&pi))
{
OutputDebugString("cmd: CreateProcess failed!\n");
return 0;
}
strCommand.ReleaseBuffer();
DWORD BRead;
DWORD BTotal;
DWORD BLeft;
char output[5000];
if(PeekNamedPipe(readHandle,output,sizeof(output),&BRead,&BTotal,&BLeft))
{
if(BLeft > 0)
{
if (!ReadFile(readHandle,output,BLeft,&bytesRead,NULL))
{
OutputDebugString("cmd: ReadFile failed!\n");
return 0;
}
}
output[bytesRead]='\0';
strOutput->Format("%s", output);
}
if(strOutput->IsEmpty())
strOutput->Format("No Data received");
if (!SetStdHandle(STD_OUTPUT_HANDLE,stdHandle))
{
OutputDebugString("cmd: SetStdHandle(stdHandle) failed!\n");
return 0;
}
if (!CloseHandle(readHandle))
{
OutputDebugString("cmd: CloseHandle(readHandle) failed!\n");
}
if (!CloseHandle(writeHandle))
{
OutputDebugString("cmd: CloseHandle(writeHandle) failed!\n");
}
return 1;
}
|
Nur: BLeft und BTotal ist immer 0!
Kann es sein das es daran liegt das das Client-Programm zu schnell sich beendet?
--
class God : public ChuckNorris { }; |
