1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 2000 Tor Lillqvist
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, see <http://www.gnu.org/licenses/>.
18 /* A test program for the main loop and IO channel code.
19 * Just run it. Optional parameter is number of sub-processes.
22 #undef G_DISABLE_ASSERT
40 #define pipe(fds) _pipe(fds, 4096, _O_BINARY)
48 static GMainLoop *main_loop;
50 #define BUFSIZE 5000 /* Larger than the circular buffer in
51 * giowin32.c on purpose.
70 GIOError error = G_IO_ERROR_NONE;
73 /* g_io_channel_read() doesn't necessarily return all the
74 * data we want at once.
79 error = g_io_channel_read (channel, bufp, left, &nb);
81 if (error != G_IO_ERROR_NONE)
83 g_print ("gio-test: ...from %d: %d\n", fd, error);
84 if (error == G_IO_ERROR_AGAIN)
98 shutdown_source (gpointer data)
100 if (g_source_remove (*(guint *) data))
104 g_main_loop_quit (main_loop);
109 recv_message (GIOChannel *channel,
113 gint fd = g_io_channel_unix_get_fd (channel);
114 gboolean retval = TRUE;
117 g_print ("gio-test: ...from %d:%s%s%s%s\n", fd,
118 (cond & G_IO_ERR) ? " ERR" : "",
119 (cond & G_IO_HUP) ? " HUP" : "",
120 (cond & G_IO_IN) ? " IN" : "",
121 (cond & G_IO_PRI) ? " PRI" : "");
124 if (cond & (G_IO_ERR | G_IO_HUP))
126 shutdown_source (data);
138 error = read_all (fd, channel, (gchar *) &seq, sizeof (seq), &nb);
139 if (error == G_IO_ERROR_NONE)
144 g_print ("gio-test: ...from %d: EOF\n", fd);
146 shutdown_source (data);
150 g_assert (nb == sizeof (nbytes));
152 for (i = 0; i < nkiddies; i++)
153 if (seqtab[i].fd == fd)
155 g_assert_cmpint (seq, ==, seqtab[i].seq);
160 error = read_all (fd, channel, (gchar *) &nbytes, sizeof (nbytes), &nb);
163 if (error != G_IO_ERROR_NONE)
169 g_print ("gio-test: ...from %d: EOF\n", fd);
171 shutdown_source (data);
175 g_assert (nb == sizeof (nbytes));
177 g_assert_cmpint (nbytes, <, BUFSIZE);
178 g_assert (nbytes >= 0 && nbytes < BUFSIZE);
180 g_print ("gio-test: ...from %d: %d bytes\n", fd, nbytes);
184 error = read_all (fd, channel, buf, nbytes, &nb);
186 if (error != G_IO_ERROR_NONE)
192 g_print ("gio-test: ...from %d: EOF\n", fd);
194 shutdown_source (data);
198 for (j = 0; j < nbytes; j++)
199 g_assert (buf[j] == ' ' + ((nbytes + j) % 95));
201 g_print ("gio-test: ...from %d: OK\n", fd);
211 recv_windows_message (GIOChannel *channel,
221 error = g_io_channel_read (channel, &msg, sizeof (MSG), &nb);
223 if (error != G_IO_ERROR_NONE)
225 g_print ("gio-test: ...reading Windows message: G_IO_ERROR_%s\n",
226 (error == G_IO_ERROR_AGAIN ? "AGAIN" :
227 (error == G_IO_ERROR_INVAL ? "INVAL" :
228 (error == G_IO_ERROR_UNKNOWN ? "UNKNOWN" : "???"))));
229 if (error == G_IO_ERROR_AGAIN)
235 g_print ("gio-test: ...Windows message for %#x: %d,%d,%d\n",
236 msg.hwnd, msg.message, msg.wParam, msg.lParam);
242 window_procedure (HWND hwnd,
247 g_print ("gio-test: window_procedure for %#x: %d,%d,%d\n",
248 hwnd, message, wparam, lparam);
249 return DefWindowProc (hwnd, message, wparam, lparam);
262 GIOChannel *my_read_channel;
273 GIOChannel *windows_messages_channel;
276 nkiddies = (argc == 1 ? 1 : atoi(argv[1]));
277 seqtab = g_malloc (nkiddies * 2 * sizeof (int));
281 wcl.lpfnWndProc = window_procedure;
284 wcl.hInstance = GetModuleHandle (NULL);
287 wcl.hbrBackground = NULL;
288 wcl.lpszMenuName = NULL;
289 wcl.lpszClassName = "gio-test";
291 klass = RegisterClass (&wcl);
295 g_print ("gio-test: RegisterClass failed\n");
299 hwnd = CreateWindow (MAKEINTATOM(klass), "gio-test", 0, 0, 0, 10, 10,
300 NULL, NULL, wcl.hInstance, NULL);
303 g_print ("gio-test: CreateWindow failed\n");
307 windows_messages_channel = g_io_channel_win32_new_messages ((guint)hwnd);
308 g_io_add_watch (windows_messages_channel, G_IO_IN, recv_windows_message, 0);
311 for (i = 0; i < nkiddies; i++)
313 int pipe_to_sub[2], pipe_from_sub[2];
315 if (pipe (pipe_to_sub) == -1 ||
316 pipe (pipe_from_sub) == -1)
317 perror ("pipe"), exit (1);
319 seqtab[i].fd = pipe_from_sub[0];
322 my_read_channel = g_io_channel_unix_new (pipe_from_sub[0]);
324 id = g_new (guint, 1);
326 g_io_add_watch (my_read_channel,
327 G_IO_IN | G_IO_PRI | G_IO_ERR | G_IO_HUP,
334 cmdline = g_strdup_printf ("%d:%d:%d",
338 _spawnl (_P_NOWAIT, argv[0], argv[0], "--child", cmdline, NULL);
340 cmdline = g_strdup_printf ("%s --child %d:%d &", argv[0],
341 pipe_to_sub[0], pipe_from_sub[1]);
346 close (pipe_to_sub[0]);
347 close (pipe_from_sub [1]);
350 g_get_current_time (&start);
351 g_io_channel_win32_make_pollfd (my_read_channel, G_IO_IN, &pollfd);
352 pollresult = g_io_channel_win32_poll (&pollfd, 1, 100);
353 g_get_current_time (&end);
354 if (end.tv_usec < start.tv_usec)
355 end.tv_sec--, end.tv_usec += 1000000;
356 g_print ("gio-test: had to wait %ld.%03ld s, result:%d\n",
357 end.tv_sec - start.tv_sec,
358 (end.tv_usec - start.tv_usec) / 1000,
361 g_io_channel_unref (my_read_channel);
364 main_loop = g_main_loop_new (NULL, FALSE);
366 g_main_loop_run (main_loop);
368 g_main_loop_unref (main_loop);
386 g_get_current_time (&tv);
388 sscanf (argv[2], "%d:%d%n", &readfd, &writefd, &n);
391 sscanf (argv[2] + n, ":%d", &hwnd);
394 srand (tv.tv_sec ^ (tv.tv_usec / 1000) ^ readfd ^ (writefd << 4));
396 for (i = 0; i < 20 + rand() % 20; i++)
398 g_usleep (100 + (rand() % 10) * 5000);
399 buflen = rand() % BUFSIZE;
400 for (j = 0; j < buflen; j++)
401 buf[j] = ' ' + ((buflen + j) % 95);
403 g_print ("gio-test: child writing %d+%d bytes to %d\n",
404 (int)(sizeof(i) + sizeof(buflen)), buflen, writefd);
406 write (writefd, &i, sizeof (i));
407 write (writefd, &buflen, sizeof (buflen));
408 write (writefd, buf, buflen);
411 if (rand() % 100 < 5)
413 int msg = WM_USER + (rand() % 100);
414 WPARAM wparam = rand ();
415 LPARAM lparam = rand ();
416 g_print ("gio-test: child posting message %d,%d,%d to %#x\n",
417 msg, wparam, lparam, hwnd);
418 PostMessage (hwnd, msg, wparam, lparam);
423 g_print ("gio-test: child exiting, closing %d\n", writefd);