10 #include <fcntl.h> /* For _O_BINARY used by pipe() macro */
11 #include <io.h> /* for _pipe() */
18 #define CRAWLER_TIMEOUT_RANGE 40
19 #define RECURSER_TIMEOUT 50
21 GPtrArray *context_array;
22 GMutex *context_array_mutex;
23 GCond *context_array_cond;
27 G_LOCK_DEFINE_STATIC (crawler_array_lock);
28 GPtrArray *crawler_array;
30 typedef struct _AddrData AddrData;
31 typedef struct _TestData TestData;
47 static void cleanup_crawlers (GMainContext *context);
50 read_all (GIOChannel *channel, char *buf, int len)
56 while (bytes_read < len)
58 err = g_io_channel_read (channel, buf + bytes_read, len - bytes_read, &count);
61 if (err != G_IO_ERROR_AGAIN)
74 write_all (GIOChannel *channel, char *buf, int len)
76 int bytes_written = 0;
80 while (bytes_written < len)
82 err = g_io_channel_write (channel, buf + bytes_written, len - bytes_written, &count);
83 if (err && err != G_IO_ERROR_AGAIN)
86 bytes_written += count;
93 adder_callback (GIOChannel *source,
94 GIOCondition condition,
102 AddrData *addr_data = data;
104 if (!read_all (source, buf1, 32) ||
105 !read_all (source, buf2, 32))
107 g_main_loop_quit (addr_data->loop);
111 sprintf (result, "%d", atoi(buf1) + atoi(buf2));
112 write_all (addr_data->dest, result, 32);
118 timeout_callback (gpointer data)
120 AddrData *addr_data = data;
128 adder_thread (gpointer data)
130 GMainContext *context;
131 GSource *adder_source;
132 GSource *timeout_source;
134 GIOChannel **channels = data;
137 context = g_main_context_new ();
139 g_mutex_lock (context_array_mutex);
141 g_ptr_array_add (context_array, context);
143 if (context_array->len == NTHREADS)
144 g_cond_broadcast (context_array_cond);
146 g_mutex_unlock (context_array_mutex);
148 addr_data.dest = channels[1];
149 addr_data.loop = g_main_loop_new (context, FALSE);
152 adder_source = g_io_create_watch (channels[0], G_IO_IN | G_IO_HUP);
153 g_source_set_callback (adder_source, (GSourceFunc)adder_callback, &addr_data, NULL);
154 g_source_attach (adder_source, context);
155 g_source_unref (adder_source);
157 timeout_source = g_timeout_source_new (10);
158 g_source_set_callback (timeout_source, (GSourceFunc)timeout_callback, &addr_data, NULL);
159 g_source_set_priority (timeout_source, G_PRIORITY_HIGH);
160 g_source_attach (timeout_source, context);
161 g_source_unref (timeout_source);
163 g_main_run (addr_data.loop);
165 g_io_channel_close (channels[0]);
166 g_io_channel_close (channels[1]);
167 g_io_channel_unref (channels[0]);
168 g_io_channel_unref (channels[1]);
172 g_main_loop_unref (addr_data.loop);
174 g_print ("Timeout run %d times\n", addr_data.count);
176 g_mutex_lock (context_array_mutex);
177 g_ptr_array_remove (context_array, context);
178 if (context_array->len == 0)
179 g_main_loop_quit (main_loop);
180 g_mutex_unlock (context_array_mutex);
182 cleanup_crawlers (context);
188 io_pipe (GIOChannel **channels)
194 g_warning ("Cannot create pipe %s\n", g_strerror (errno));
198 channels[0] = g_io_channel_unix_new (fds[0]);
199 channels[1] = g_io_channel_unix_new (fds[1]);
203 do_add (GIOChannel *in, gint a, gint b)
208 sprintf (buf1, "%d", a);
209 sprintf (buf2, "%d", b);
211 write_all (in, buf1, 32);
212 write_all (in, buf2, 32);
216 adder_response (GIOChannel *source,
217 GIOCondition condition,
221 TestData *test_data = data;
223 if (!read_all (source, result, 32))
226 test_data->current_val = atoi (result);
229 if (test_data->iters == 0)
231 if (test_data->current_val != ITERS * INCREMENT)
233 g_print ("Addition failed: %d != %d\n",
234 test_data->current_val, ITERS * INCREMENT);
238 g_io_channel_close (source);
239 g_io_channel_close (test_data->in);
241 g_io_channel_unref (source);
242 g_io_channel_unref (test_data->in);
247 do_add (test_data->in, test_data->current_val, INCREMENT);
253 create_adder_thread (void)
258 GIOChannel *in_channels[2];
259 GIOChannel *out_channels[2];
261 GIOChannel **sub_channels;
263 sub_channels = g_new (GIOChannel *, 2);
265 io_pipe (in_channels);
266 io_pipe (out_channels);
268 sub_channels[0] = in_channels[0];
269 sub_channels[1] = out_channels[1];
271 g_thread_create (adder_thread, sub_channels, FALSE, &err);
275 g_warning ("Cannot create thread: %s", err->message);
279 test_data = g_new (TestData, 1);
280 test_data->in = in_channels[1];
281 test_data->current_val = 0;
282 test_data->iters = ITERS;
284 g_io_add_watch (out_channels[0], G_IO_IN | G_IO_HUP,
285 adder_response, test_data);
287 do_add (test_data->in, test_data->current_val, INCREMENT);
290 static void create_crawler (void);
293 remove_crawler (void)
295 GSource *other_source;
297 if (crawler_array->len > 0)
299 other_source = crawler_array->pdata[g_random_int_range (0, crawler_array->len)];
300 g_source_destroy (other_source);
301 g_assert (g_ptr_array_remove_fast (crawler_array, other_source));
306 crawler_callback (gpointer data)
308 GSource *source = data;
310 G_LOCK (crawler_array_lock);
312 if (!g_ptr_array_remove_fast (crawler_array, source))
316 G_UNLOCK (crawler_array_lock);
325 create_crawler (void)
327 GSource *source = g_timeout_source_new (g_random_int_range (0, CRAWLER_TIMEOUT_RANGE));
328 g_source_set_callback (source, (GSourceFunc)crawler_callback, source, NULL);
330 g_mutex_lock (context_array_mutex);
331 g_source_attach (source, context_array->pdata[g_random_int_range (0, context_array->len)]);
332 g_source_unref (source);
333 g_mutex_unlock (context_array_mutex);
335 G_LOCK (crawler_array_lock);
336 g_ptr_array_add (crawler_array, source);
337 G_UNLOCK (crawler_array_lock);
341 cleanup_crawlers (GMainContext *context)
345 G_LOCK (crawler_array_lock);
346 for (i=0; i < crawler_array->len; i++)
348 if (g_source_get_context (crawler_array->pdata[i]) == context)
350 g_source_destroy (g_ptr_array_remove_index (crawler_array, i));
354 G_UNLOCK (crawler_array_lock);
358 recurser_idle (gpointer data)
360 GMainContext *context = data;
363 for (i = 0; i < 10; i++)
364 g_main_context_iteration (context, TRUE);
370 recurser_start (gpointer data)
372 GMainContext *context;
375 g_mutex_lock (context_array_mutex);
376 context = context_array->pdata[g_random_int_range (0, context_array->len)];
377 source = g_idle_source_new ();
378 g_source_set_callback (source, recurser_idle, context, NULL);
379 g_source_attach (source, context);
380 g_source_unref (source);
381 g_mutex_unlock (context_array_mutex);
390 /* Only run the test, if threads are enabled and a default thread
391 implementation is available */
392 #if defined(G_THREADS_ENABLED) && ! defined(G_THREADS_IMPL_NONE)
395 g_thread_init (NULL);
397 context_array = g_ptr_array_new ();
398 context_array_mutex = g_mutex_new ();
399 context_array_cond = g_cond_new ();
401 crawler_array = g_ptr_array_new ();
403 main_loop = g_main_loop_new (NULL, FALSE);
405 for (i = 0; i < NTHREADS; i++)
406 create_adder_thread ();
408 /* Wait for all threads to start
410 g_mutex_lock (context_array_mutex);
412 if (context_array->len < NTHREADS)
413 g_cond_wait (context_array_cond, context_array_mutex);
415 g_mutex_unlock (context_array_mutex);
417 for (i = 0; i < NCRAWLERS; i++)
420 g_timeout_add (RECURSER_TIMEOUT, recurser_start, NULL);
422 g_main_loop_run (main_loop);
423 g_main_loop_unref (main_loop);