1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GLib Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GLib Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GLib at ftp://ftp.gtk.org/pub/gtk/.
27 #include <sys/types.h>
41 #define GPID_FORMAT "%p"
43 #define GPID_FORMAT "%d"
54 get_a_child (gint ttl)
60 PROCESS_INFORMATION pi;
63 memset (&si, 0, sizeof (si));
65 memset (&pi, 0, sizeof (pi));
67 cmdline = g_strdup_printf( "child-test -c%d", ttl);
69 if (!CreateProcess (argv0, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
70 g_error ("CreateProcess failed: %s\n", g_win32_error_message (GetLastError ()));
74 CloseHandle (pi.hThread);
88 #endif /* G_OS_WIN32 */
92 child_watch_callback (GPid pid, gint status, gpointer data)
95 gint ttl = GPOINTER_TO_INT (data);
97 g_print ("child " GPID_FORMAT " (ttl %d) exited, status %d\n", pid, ttl, status);
100 g_spawn_close_pid (pid);
103 g_main_loop_quit (main_loop);
109 quit_loop (gpointer data)
111 GMainLoop *main_loop = data;
113 g_main_loop_quit (main_loop);
120 test_thread (gpointer data)
122 GMainLoop *new_main_loop;
125 gint ttl = GPOINTER_TO_INT (data);
127 new_main_loop = g_main_loop_new (NULL, FALSE);
129 pid = get_a_child (ttl);
130 source = g_child_watch_source_new (pid);
131 g_source_set_callback (source, (GSourceFunc) child_watch_callback, data, NULL);
132 g_source_attach (source, g_main_loop_get_context (new_main_loop));
133 g_source_unref (source);
136 g_print ("whee! created pid: " GPID_FORMAT " (ttl %d)\n", pid, ttl);
139 g_main_loop_run (new_main_loop);
146 main (int argc, char *argv[])
153 if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'c')
155 int ttl = atoi (argv[1] + 2);
157 /* Exit on purpose with STILL_ACTIVE (which isn't a very common
158 * exit status) to verify that g_child_watch_check() in gmain.c
159 * doesn't believe a child still to be active if it happens to
160 * exit with that status.
166 main_loop = g_main_loop_new (NULL, FALSE);
169 system ("ipconfig /all");
175 g_timeout_add_seconds (30, quit_loop, main_loop);
178 g_thread_create (test_thread, GINT_TO_POINTER (10), FALSE, NULL);
179 g_thread_create (test_thread, GINT_TO_POINTER (20), FALSE, NULL);
181 pid = get_a_child (10);
182 g_child_watch_add (pid, (GChildWatchFunc) child_watch_callback,
183 GINT_TO_POINTER (10));
184 pid = get_a_child (20);
185 g_child_watch_add (pid, (GChildWatchFunc) child_watch_callback,
186 GINT_TO_POINTER (20));
189 g_main_loop_run (main_loop);
191 g_main_loop_unref (main_loop);
195 g_warning ("%d children still alive\n", alive);