1 /* GLib testing framework examples and tests
2 * Copyright (C) 2008 Red Hat, Inc
4 * This work is provided "as is"; redistribution and modification
5 * in whole or in part, in any medium, physical or electronic is
6 * permitted without restriction.
8 * This work is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 * In no event shall the authors or contributors be liable for any
13 * direct, indirect, incidental, special, exemplary, or consequential
14 * damages (including, but not limited to, procurement of substitute
15 * goods or services; loss of use, data, or profits; or business
16 * interruption) however caused and on any theory of liability, whether
17 * in contract, strict liability, or tort (including negligence or
18 * otherwise) arising in any way out of the use of this software, even
19 * if advised of the possibility of such damage.
22 #include <glib/glib.h>
24 #include <gio/gwin32inputstream.h>
25 #include <gio/gwin32outputstream.h>
33 #define DATA "abcdefghijklmnopqrstuvwxyz"
35 int writer_pipe[2], reader_pipe[2];
36 GCancellable *writer_cancel, *reader_cancel, *main_cancel;
40 writer_thread (gpointer user_data)
43 gssize nwrote, offset;
47 g_assert (DuplicateHandle (GetCurrentProcess (),
48 (HANDLE) (gintptr) _get_osfhandle (writer_pipe[1]),
52 DUPLICATE_SAME_ACCESS));
53 close (writer_pipe[1]);
55 out = g_win32_output_stream_new (out_handle, TRUE);
61 while (offset < (gssize) sizeof (DATA))
63 nwrote = g_output_stream_write (out, DATA + offset,
64 sizeof (DATA) - offset,
66 if (nwrote <= 0 || err != NULL)
71 g_assert (nwrote > 0 || err != NULL);
75 if (g_cancellable_is_cancelled (writer_cancel))
77 g_cancellable_cancel (main_cancel);
82 g_warning ("writer: %s", err->message);
83 g_assert_not_reached ();
87 reader_thread (gpointer user_data)
90 gssize nread = 0, total;
92 char buf[sizeof (DATA)];
95 g_assert (DuplicateHandle (GetCurrentProcess (),
96 (HANDLE) (gintptr) _get_osfhandle (reader_pipe[0]),
100 DUPLICATE_SAME_ACCESS));
101 close (reader_pipe[0]);
103 in = g_win32_input_stream_new (in_handle, TRUE);
108 while (total < (gssize) sizeof (DATA))
110 nread = g_input_stream_read (in, buf + total, sizeof (buf) - total,
111 reader_cancel, &err);
112 if (nread <= 0 || err != NULL)
122 g_assert (err == NULL);
128 g_assert_cmpstr (buf, ==, DATA);
129 g_assert (!g_cancellable_is_cancelled (reader_cancel));
133 g_warning ("reader: %s", err->message);
134 g_assert_not_reached ();
137 char main_buf[sizeof (DATA)];
138 gssize main_len, main_offset;
140 static void readable (GObject *source, GAsyncResult *res, gpointer user_data);
141 static void writable (GObject *source, GAsyncResult *res, gpointer user_data);
144 do_main_cancel (GOutputStream *out)
146 g_output_stream_close (out, NULL, NULL);
147 g_main_loop_quit (loop);
151 readable (GObject *source, GAsyncResult *res, gpointer user_data)
153 GInputStream *in = G_INPUT_STREAM (source);
154 GOutputStream *out = user_data;
157 main_len = g_input_stream_read_finish (in, res, &err);
159 if (g_cancellable_is_cancelled (main_cancel))
161 do_main_cancel (out);
165 g_assert (err == NULL);
168 g_output_stream_write_async (out, main_buf, main_len,
169 G_PRIORITY_DEFAULT, main_cancel,
174 writable (GObject *source, GAsyncResult *res, gpointer user_data)
176 GOutputStream *out = G_OUTPUT_STREAM (source);
177 GInputStream *in = user_data;
181 nwrote = g_output_stream_write_finish (out, res, &err);
183 if (g_cancellable_is_cancelled (main_cancel))
185 do_main_cancel (out);
189 g_assert (err == NULL);
190 g_assert_cmpint (nwrote, <=, main_len - main_offset);
192 main_offset += nwrote;
193 if (main_offset == main_len)
195 g_input_stream_read_async (in, main_buf, sizeof (main_buf),
196 G_PRIORITY_DEFAULT, main_cancel,
201 g_output_stream_write_async (out, main_buf + main_offset,
202 main_len - main_offset,
203 G_PRIORITY_DEFAULT, main_cancel,
209 timeout (gpointer cancellable)
211 g_cancellable_cancel (cancellable);
218 GThread *writer, *reader;
221 HANDLE in_handle, out_handle;
223 /* Split off two (additional) threads, a reader and a writer. From
224 * the writer thread, write data synchronously in small chunks,
225 * which gets read asynchronously by the main thread and then
226 * written asynchronously to the reader thread, which reads it
227 * synchronously. Eventually a timeout in the main thread will cause
228 * it to cancel the writer thread, which will in turn cancel the
229 * read op in the main thread, which will then close the pipe to
230 * the reader thread, causing the read op to fail.
233 g_assert (_pipe (writer_pipe, 10, _O_BINARY) == 0 && _pipe (reader_pipe, 10, _O_BINARY) == 0);
235 writer_cancel = g_cancellable_new ();
236 reader_cancel = g_cancellable_new ();
237 main_cancel = g_cancellable_new ();
239 writer = g_thread_new ("writer", writer_thread, NULL);
240 reader = g_thread_new ("reader", reader_thread, NULL);
242 g_assert (DuplicateHandle (GetCurrentProcess (),
243 (HANDLE) (gintptr) _get_osfhandle (writer_pipe[0]),
244 GetCurrentProcess (),
247 DUPLICATE_SAME_ACCESS));
248 close (writer_pipe[0]);
250 g_assert (DuplicateHandle (GetCurrentProcess (),
251 (HANDLE) (gintptr) _get_osfhandle (reader_pipe[1]),
252 GetCurrentProcess (),
255 DUPLICATE_SAME_ACCESS));
256 close (reader_pipe[1]);
258 in = g_win32_input_stream_new (in_handle, TRUE);
259 out = g_win32_output_stream_new (out_handle, TRUE);
261 g_input_stream_read_async (in, main_buf, sizeof (main_buf),
262 G_PRIORITY_DEFAULT, main_cancel,
265 g_timeout_add (500, timeout, writer_cancel);
267 loop = g_main_loop_new (NULL, TRUE);
268 g_main_loop_run (loop);
269 g_main_loop_unref (loop);
271 g_thread_join (reader);
272 g_thread_join (writer);
274 g_object_unref (main_cancel);
275 g_object_unref (reader_cancel);
276 g_object_unref (writer_cancel);
278 g_object_unref (out);
286 g_test_init (&argc, &argv, NULL);
288 g_test_add_func ("/win32-streams/pipe-io-test", test_pipe_io);