mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-12-26 15:36:14 +01:00
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>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <fcntl.h>
|
|
|
|
int _stdcall
|
|
WinMain (struct HINSTANCE__ *hInstance,
|
|
struct HINSTANCE__ *hPrevInstance,
|
|
char *lpszCmdLine,
|
|
int nCmdShow)
|
|
{
|
|
if (__argc <= 2)
|
|
{
|
|
MessageBox (NULL, "spawn-test-win32-gui: Will write to stdout",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
printf ("This is stdout\n");
|
|
fflush (stdout);
|
|
|
|
MessageBox (NULL, "spawn-test-win32-gui: Will write to stderr",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
fprintf (stderr, "This is stderr\n");
|
|
fflush (stderr);
|
|
}
|
|
else if (__argc == 4 && strcmp (__argv[1], "pipes") == 0)
|
|
{
|
|
int infd = atoi (__argv[2]);
|
|
int outfd = atoi (__argv[3]);
|
|
int k, n;
|
|
char buf[100];
|
|
|
|
if (infd < 0 || outfd < 0)
|
|
{
|
|
MessageBox (NULL, "spawn-test-win32-gui: illegal fds on command line",
|
|
lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
|
|
exit (1);
|
|
}
|
|
|
|
MessageBox (NULL, "spawn-test-win32-gui: Will write to parent",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
n = strlen ("Hello there");
|
|
if (write (outfd, &n, sizeof (n)) == -1 ||
|
|
write (outfd, "Hello there", n) == -1)
|
|
{
|
|
sprintf (buf, "spawn-test-win32-gui: Write: %s", strerror (errno));
|
|
MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
|
|
exit (1);
|
|
}
|
|
|
|
MessageBox (NULL, "spawn-test-win32-gui: Will read from parent",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
if ((k = read (infd, &n, sizeof (n))) != sizeof (n))
|
|
{
|
|
sprintf (buf, "spawn-test-win32-gui: Got only %d bytes, wanted %d",
|
|
k, sizeof (n));
|
|
MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
|
|
exit (1);
|
|
}
|
|
|
|
sprintf (buf, "spawn-test-win32-gui: Parent says %d bytes to read", n);
|
|
MessageBox (NULL, buf, lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
if ((k = read (infd, buf, n)) != n)
|
|
{
|
|
if (k == -1)
|
|
sprintf (buf, "spawn-test-win32-gui: Read: %s", strerror (errno));
|
|
else
|
|
sprintf (buf, "spawn-test-win32-gui: Got only %d bytes", k);
|
|
MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
|
|
exit (1);
|
|
}
|
|
|
|
MessageBox (NULL, "spawn-test-win32-gui: Will write more to parent",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
n = strlen ("See ya");
|
|
if (write (outfd, &n, sizeof (n)) == -1 ||
|
|
write (outfd, "See ya", n) == -1)
|
|
{
|
|
sprintf (buf, "spawn-test-win32-gui: Write: %s", strerror (errno));
|
|
MessageBox (NULL, buf, lpszCmdLine, MB_ICONERROR|MB_SYSTEMMODAL);
|
|
exit (1);
|
|
}
|
|
}
|
|
|
|
MessageBox (NULL, "spawn-test-win32-gui: Sleeping a bit.",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
Sleep (2000);
|
|
|
|
MessageBox (NULL, "spawn-test-win32-gui: Done, exiting.",
|
|
lpszCmdLine, MB_ICONINFORMATION|MB_SYSTEMMODAL);
|
|
|
|
return 0;
|
|
}
|