-
-#ifndef WINDOWS
-int run(char *this, char *program, int argc, char** argv) {
- execv(program, argv);
- return 1; /* Not reached */
-}
-#else
-int run(char *this, char *program, int argc, char** argv) {
- TCHAR programShort[MAX_PATH+1];
- DWORD dwSize;
- int i;
- char* new_cmdline;
- char *ptr;
- char *src;
- unsigned int cmdline_len;
-
- STARTUPINFO si;
- PROCESS_INFORMATION pi;
-
- ZeroMemory(&si, sizeof(STARTUPINFO));
- ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
-
- si.cb = sizeof(STARTUPINFO);
-
- dwSize = MAX_PATH;
- /* Turn the path into short form - LFN form causes problems
- when passed in argv[0]. */
- if ( !(GetShortPathName(program, programShort, dwSize)) ) {
- error("%s: Unable to locate %s", this, program);
- return 1;
- }
-
- /* Compute length of the flattened 'argv', including spaces! */
- cmdline_len = 0;
- for(i = 1; i < argc; i++) {
- /* Note: play it safe and quote all argv strings */
- cmdline_len += 1 + strlen(argv[i]) + 2;
- }
- new_cmdline = (char*)malloc(sizeof(char) * (cmdline_len + 1));
- if (!new_cmdline) {
- error("%s: failed to start up ghc.exe; insufficient memory", this);
- return 1;
- }
-
- ptr = new_cmdline;
- for(i = 1; i < argc; i++) {
- *ptr++ = ' ';
- *ptr++ = '"';
- src = argv[i];
- while(*src) {
- *ptr++ = *src++;
- }
- *ptr++ = '"';
- }
- *ptr = '\0';
-
- /* Note: Used to use _spawnv(_P_WAIT, ...) here, but it suffered
- from the parent intercepting console events such as Ctrl-C,
- which it shouldn't. Installing an ignore-all console handler
- didn't do the trick either.
-
- Irrespective of this issue, using CreateProcess() is preferable,
- as it makes this wrapper work on both mingw and cygwin.
- */
-#if 0
- fprintf(stderr, "Invoking ghc: %s %s\n", programShort, new_cmdline);
- fflush(stderr);
-#endif
- if (!CreateProcess(programShort,
- new_cmdline,
- NULL,
- NULL,
- TRUE,
- 0, /* dwCreationFlags */
- NULL, /* lpEnvironment */
- NULL, /* lpCurrentDirectory */
- &si, /* lpStartupInfo */
- &pi) ) {
- error("%s: Unable to start ghc.exe (error code: %lu)",
- this, GetLastError());
- return 1;
- }
- /* Disable handling of console events in the parent by dropping its
- * connection to the console. This has the (minor) downside of not being
- * able to subsequently emit any error messages to the console.
- */
- FreeConsole();
-
- switch (WaitForSingleObject(pi.hProcess, INFINITE) ) {
- case WAIT_OBJECT_0:
- return 0;
- case WAIT_ABANDONED:
- case WAIT_FAILED:
- /* in the event we get any hard errors, bring the child
- to a halt. */
- TerminateProcess(pi.hProcess, 1);
- return 1;
- default:
- return 1;
- }
-}
-#endif
-