| 1 | /******************************************************************************
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| 2 | Code derived from the following at http://www.microsoft.com/msj/0698/win320698.aspx
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| 3 | Module name: SmallApp.cpp
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| 4 | Written by: Jeffrey Richter
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| 5 | Purpose: Spawn helper that kills everything in its Process Group.
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| 6 | ******************************************************************************/
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| 7 |
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| 8 | //#define UNICODE
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| 9 | //#define _UNICODE
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| 10 |
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| 11 | #define STRICT
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| 12 | #include <Windows.h>
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| 13 | #include <process.h>
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| 14 | #include <tchar.h>
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| 15 | #include <stdio.h>
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| 16 |
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| 17 | ///////////////////////////////////////////////////////////////////////////////
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| 18 |
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| 19 | /******************************************************************************
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| 20 | Sends the Ctrl-C to all processes spawned in this process' own console.
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| 21 | (Sends Ctrl-C to the two connected httpd.exe instances launched together)
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| 22 | *******************************************************************************/
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| 23 |
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| 24 | extern "C" int _tmain(int argc, TCHAR* argv[])
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| 25 | {
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| 26 |
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| 27 | // Make sure that we've been passed the right number of arguments
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| 28 | if (argc < 3) {
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| 29 | _tprintf(
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| 30 | __TEXT("Usage: %s (InheritableEventHandle) (CommandLineToSpawn)\n"),
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| 31 | argv[0]);
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| 32 | return(-1);
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| 33 | }
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| 34 |
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| 35 | // Construct the full command line
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| 36 | TCHAR szCmdLine[MAX_PATH] = { 0 };
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| 37 | for (int x = 2; x < argc; x++) {
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| 38 | _tcscat(szCmdLine, argv[x]);
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| 39 | _tcscat(szCmdLine, __TEXT(" "));
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| 40 | }
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| 41 |
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| 42 | STARTUPINFO si = { sizeof(si) };
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| 43 | PROCESS_INFORMATION pi = { 0 };
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| 44 | DWORD dwExitCode = 0;
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| 45 |
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| 46 | HANDLE h[2];
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| 47 | h[0] = (HANDLE) _ttoi(argv[1]); // The inherited event handle
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| 48 |
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| 49 | // Spawn the other processes as part of this Process Group
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| 50 | BOOL f = CreateProcess(NULL, szCmdLine, NULL, NULL, TRUE,
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| 51 | 0, NULL, NULL, &si, &pi);
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| 52 |
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| 53 | if (f) {
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| 54 | CloseHandle(pi.hThread);
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| 55 | h[1] = pi.hProcess;
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| 56 |
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| 57 | // Wait for the spawned-process to die or for the event
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| 58 | // indicating that the processes should be forcibly killed.
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| 59 | switch (WaitForMultipleObjects(2, h, FALSE, INFINITE)) {
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| 60 | case WAIT_OBJECT_0 + 0: // Force termination
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| 61 | GenerateConsoleCtrlEvent(CTRL_C_EVENT, 0);
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| 62 | WaitForSingleObject(pi.hProcess, INFINITE);
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| 63 | break;
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| 64 |
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| 65 | case WAIT_OBJECT_0 + 1: // App terminated normally
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| 66 | // Make its exit code our exit code
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| 67 | GetExitCodeProcess(pi.hProcess, &dwExitCode);
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| 68 | break;
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| 69 | }
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| 70 | CloseHandle(pi.hProcess);
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| 71 | }
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| 72 | CloseHandle(h[0]); // Close the inherited event handle
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| 73 | return(dwExitCode);
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| 74 | }
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| 75 |
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| 76 | //////////////////////////////// End of File //////////////////////////////////
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| 77 |
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| 78 |
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