我有一个运行 java 进程并读取它的输出的 C++ 程序。我使用了以下 MSDN 代码：
http://msdn.microsoft.com/en-us/library/ms682499%28v=vs.85%29.aspx
但是，当读取输出的最后一行时
bSuccess = ReadFile(g_hInputFile, chBuf, BUFSIZE, &dwRead, NULL);
bsucces等于1，所以程序继续下一个循环，当到达同一行时，程序只是“飞”，无一例外地停止调试，断点永远不会移动到下一行。
我想这是因为没有 EOF 指示停止阅读。但是，java没有EOF 字符。java程序只是做：
System.out.close();
最后。
为了修复它，我可以在 C++\Java 代码中做什么？
编辑：
这是代码。
它不适用于任何控制台应用程序，读到结束然后“挂起”。
HANDLE g_hChildStd_IN_Rd = NULL;
HANDLE g_hChildStd_IN_Wr = NULL;
HANDLE g_hChildStd_OUT_Rd = NULL;
HANDLE g_hChildStd_OUT_Wr = NULL;
HANDLE g_hInputFile = NULL;
PROCESS_INFORMATION piProcInfo;
void CreateChildProcess()
// Create a child process that uses the previously created pipes for STDIN and STDOUT.
{
std::string d=processLoaction;
TCHAR *cmdline=new TCHAR[d.size()+1];
cmdline[d.size()]=0;
std::copy(d.begin(),d.end(),cmdline);
STARTUPINFO siStartInfo;
BOOL bSuccess = FALSE;
// Set up members of the PROCESS_INFORMATION structure.
ZeroMemory( &piProcInfo, sizeof(PROCESS_INFORMATION) );
// Set up members of the STARTUPINFO structure.
// This structure specifies the STDIN and STDOUT handles for redirection.
ZeroMemory( &siStartInfo, sizeof(STARTUPINFO) );
siStartInfo.cb = sizeof(STARTUPINFO);
siStartInfo.hStdError = g_hChildStd_OUT_Wr;
siStartInfo.hStdOutput = g_hChildStd_OUT_Wr;
siStartInfo.dwFlags |= STARTF_USESTDHANDLES;
// Create the child process.
bSuccess = CreateProcess(NULL, cmdline, NULL, NULL, TRUE, 0, NULL, NULL, &siStartInfo, &piProcInfo); // receives PROCESS_INFORMATION
// If an error occurs, exit the application.
if ( ! bSuccess )
throw new Exception("Failed to create process");
else
{
// Close handles to the child process and its primary thread.
// Some applications might keep these handles to monitor the status
// of the child process, for example.
CloseHandle(piProcInfo.hProcess);
CloseHandle(piProcInfo.hThread);
}
}
void ReadFromPipe(void)
// Read output from the child process's pipe for STDOUT
// and write to the parent process's pipe for STDOUT.
// Stop when there is no more data.
{
DWORD dwRead, dwWritten,status;
CHAR chBuf[BUFSIZE];
BOOL bSuccess = FALSE;
HANDLE hParentStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
BOOL res;
for (;;)
{
bSuccess = ReadFile( g_hChildStd_OUT_Rd, chBuf, BUFSIZE, &dwRead, NULL);
if( ! bSuccess || dwRead == 0 )
break;
chBuf[dwRead] = NULL;
bSuccess = WriteFile(hParentStdOut, chBuf, dwRead, &dwWritten, NULL);
if (! bSuccess )
break;
}
}
int main(int argc, char** argv)
{
//run the Jar to validate manifest & jeff
SECURITY_ATTRIBUTES saAttr;
// Set the bInheritHandle flag so pipe handles are inherited.
saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
saAttr.bInheritHandle = TRUE;
saAttr.lpSecurityDescriptor = NULL;
// Create a pipe for the child process's STDOUT.
if ( ! CreatePipe(&g_hChildStd_OUT_Rd, &g_hChildStd_OUT_Wr, &saAttr, 0) )
throw new Exception("faild to create a pipe for the child process's STDOUT");
// Ensure the read handle to the pipe for STDOUT is not inherited.
if ( ! SetHandleInformation(g_hChildStd_OUT_Rd, HANDLE_FLAG_INHERIT, 0) )
throw new Exception("Read handle to the pipe for STDOUT is inherited");
CreateChildProcess();
ReadFromPipe();
...
}