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1f04f2cce2
2002-11-17 Tor Lillqvist <tml@iki.fi> * glib/gspawn-win32.c (g_spawn_async_with_pipes): Ignore the G_SPAWN_DO_NOT_REAP_CHILD flag, can't be meaninfully implemented on Windows, at least not now. Always pass dont_wait as TRUE to do_spawn_with_pipes(). The semantics of the dont_wait parameter is very different from the semantics of the intermediate_child parameter to fork_exec_with_pipes() in the Unix version. This fixes a serious bug, g_spawn_async() in fact behaved synchronously. (do_spawn_with_pipes, do_spawn): Rename from fork_exec_with_pipes() and do_exec(), those names were from the Unix bersion, and misleading. (close_and_invalidate): Don't try to close invalid fds. * glib/gspawn.c (g_spawn_async_with_pipes): Add warning about Windows behaviour. There is no fork(), so the child_setup() function is in fact called in the parent. * glib/gspawn-win32-helper.c (WinMain): Insert spaces in argv debugging output. * tests/spawn-test-win32-gui.c: New file. Test program to be linked as a GUI application. Behaves differently depending on how invoked (by spawn-test). * tests/spawn-test.c (run_tests): On Win32, run the spawn-test-win32-gui program, too, in several ways, synchronously and asynchronously. * tests/Makefile.am: Corresponding change.
100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
#include <windows.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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int _stdcall
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WinMain (struct HINSTANCE__ *hInstance,
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struct HINSTANCE__ *hPrevInstance,
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char *lpszCmdLine,
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int nCmdShow)
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{
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if (__argc <= 2)
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{
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MessageBox (NULL, "spawn-test-win32-gui: Will write to stdout",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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printf ("This is stdout\n");
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fflush (stdout);
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MessageBox (NULL, "spawn-test-win32-gui: Will write to stderr",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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fprintf (stderr, "This is stderr\n");
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fflush (stderr);
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}
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else if (__argc == 4 && strcmp (__argv[1], "pipes") == 0)
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{
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int infd = atoi (__argv[2]);
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int outfd = atoi (__argv[3]);
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int k, n;
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char buf[100];
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if (infd < 0 || outfd < 0)
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{
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MessageBox (NULL, "spawn-test-win32-gui: illegal fds on command line",
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lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
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exit (1);
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}
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MessageBox (NULL, "spawn-test-win32-gui: Will write to parent",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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n = strlen ("Hello there");
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if (write (outfd, &n, sizeof (n)) == -1 ||
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write (outfd, "Hello there", n) == -1)
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{
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sprintf (buf, "spawn-test-win32-gui: Write: %s", strerror (errno));
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MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
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exit (1);
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}
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MessageBox (NULL, "spawn-test-win32-gui: Will read from parent",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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if ((k = read (infd, &n, sizeof (n))) != sizeof (n))
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{
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sprintf (buf, "spawn-test-win32-gui: Got only %d bytes, wanted %d",
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k, sizeof (n));
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MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
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exit (1);
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}
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sprintf (buf, "spawn-test-win32-gui: Parent says %d bytes to read", n);
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MessageBox (NULL, buf, lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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if ((k = read (infd, buf, n)) != n)
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{
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if (k == -1)
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sprintf (buf, "spawn-test-win32-gui: Read: %s", strerror (errno));
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else
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sprintf (buf, "spawn-test-win32-gui: Got only %d bytes", k);
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MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
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exit (1);
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}
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MessageBox (NULL, "spawn-test-win32-gui: Will write more to parent",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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n = strlen ("See ya");
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if (write (outfd, &n, sizeof (n)) == -1 ||
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write (outfd, "See ya", n) == -1)
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{
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sprintf (buf, "spawn-test-win32-gui: Write: %s", strerror (errno));
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MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
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exit (1);
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}
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}
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MessageBox (NULL, "spawn-test-win32-gui: Sleeping a bit.",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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Sleep (2000);
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MessageBox (NULL, "spawn-test-win32-gui: Done, exiting.",
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lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
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return 0;
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}
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