+#undef G_DISABLE_ASSERT
+#undef G_LOG_DOMAIN
+
+#include "config.h"
+
#include <glib.h>
-#define RUNS 100
+#define DEBUG_MSG(x)
+/* #define DEBUG_MSG(args) g_printerr args ; g_printerr ("\n"); */
+
+#define WAIT 5 /* seconds */
+#define MAX_THREADS 10
+
+/* if > 0 the test will run continously (since the test ends when
+ * thread count is 0), if -1 it means no limit to unused threads
+ * if 0 then no unused threads are possible */
+#define MAX_UNUSED_THREADS -1
+
+G_LOCK_DEFINE_STATIC (thread_counter_pools);
+
+static gulong abs_thread_counter = 0;
+static gulong running_thread_counter = 0;
+static gulong leftover_task_counter = 0;
+
+G_LOCK_DEFINE_STATIC (last_thread);
+
+static guint last_thread_id = 0;
+
+G_LOCK_DEFINE_STATIC (thread_counter_sort);
+
+static gulong sort_thread_counter = 0;
+
+static GThreadPool *idle_pool = NULL;
+
+static GMainLoop *main_loop = NULL;
+
+static void
+test_thread_functions (void)
+{
+ gint max_unused_threads;
+ guint max_idle_time;
+
+ /* This function attempts to call functions which don't need a
+ * threadpool to operate to make sure no uninitialised pointers
+ * accessed and no errors occur.
+ */
+
+ max_unused_threads = 3;
+
+ DEBUG_MSG (("[funcs] Setting max unused threads to %d",
+ max_unused_threads));
+ g_thread_pool_set_max_unused_threads (max_unused_threads);
-G_LOCK_DEFINE_STATIC (thread_counter);
-gulong abs_thread_counter;
-gulong running_thread_counter;
+ DEBUG_MSG (("[funcs] Getting max unused threads = %d",
+ g_thread_pool_get_max_unused_threads ()));
+ g_assert (g_thread_pool_get_max_unused_threads() == max_unused_threads);
-void
-thread_pool_func (gpointer a, gpointer b)
+ DEBUG_MSG (("[funcs] Getting num unused threads = %d",
+ g_thread_pool_get_num_unused_threads ()));
+ g_assert (g_thread_pool_get_num_unused_threads () == 0);
+
+ DEBUG_MSG (("[funcs] Stopping unused threads"));
+ g_thread_pool_stop_unused_threads ();
+
+ max_idle_time = 10 * G_USEC_PER_SEC;
+
+ DEBUG_MSG (("[funcs] Setting max idle time to %d",
+ max_idle_time));
+ g_thread_pool_set_max_idle_time (max_idle_time);
+
+ DEBUG_MSG (("[funcs] Getting max idle time = %d",
+ g_thread_pool_get_max_idle_time ()));
+ g_assert (g_thread_pool_get_max_idle_time () == max_idle_time);
+
+ DEBUG_MSG (("[funcs] Setting max idle time to 0"));
+ g_thread_pool_set_max_idle_time (0);
+
+ DEBUG_MSG (("[funcs] Getting max idle time = %d",
+ g_thread_pool_get_max_idle_time ()));
+ g_assert (g_thread_pool_get_max_idle_time () == 0);
+}
+
+static void
+test_count_threads_foreach (GThread *thread,
+ guint *count)
{
- G_LOCK (thread_counter);
+ ++*count;
+}
+
+static guint
+test_count_threads (void)
+{
+ guint count = 0;
+
+ g_thread_foreach ((GFunc) test_count_threads_foreach, &count);
+
+ /* Exclude main thread */
+ return count - 1;
+}
+
+static void
+test_thread_stop_unused (void)
+{
+ GThreadPool *pool;
+ guint i;
+ guint limit = 100;
+
+ /* Spawn a few threads. */
+ g_thread_pool_set_max_unused_threads (-1);
+ pool = g_thread_pool_new ((GFunc) g_usleep, NULL, -1, FALSE, NULL);
+
+ for (i = 0; i < limit; i++)
+ g_thread_pool_push (pool, GUINT_TO_POINTER (1000), NULL);
+
+ DEBUG_MSG (("[unused] ===> pushed %d threads onto the idle pool",
+ limit));
+
+ /* Wait for the threads to migrate. */
+ g_usleep (G_USEC_PER_SEC);
+
+ DEBUG_MSG (("[unused] current threads %d",
+ test_count_threads()));
+
+ DEBUG_MSG (("[unused] stopping unused threads"));
+ g_thread_pool_stop_unused_threads ();
+
+ DEBUG_MSG (("[unused] waiting ONE second for threads to die"));
+
+ /* Some time for threads to die. */
+ g_usleep (G_USEC_PER_SEC);
+
+ DEBUG_MSG (("[unused] stopped idle threads, %d remain, %d threads still exist",
+ g_thread_pool_get_num_unused_threads (),
+ test_count_threads ()));
+
+ g_assert (g_thread_pool_get_num_unused_threads () == test_count_threads ());
+ g_assert (g_thread_pool_get_num_unused_threads () == 0);
+
+ g_thread_pool_set_max_unused_threads (MAX_THREADS);
+
+ DEBUG_MSG (("[unused] cleaning up thread pool"));
+ g_thread_pool_free (pool, FALSE, TRUE);
+}
+
+static void
+test_thread_pools_entry_func (gpointer data, gpointer user_data)
+{
+ guint id = 0;
+
+ id = GPOINTER_TO_UINT (data);
+
+ DEBUG_MSG (("[pool] ---> [%3.3d] entered thread.", id));
+
+ G_LOCK (thread_counter_pools);
abs_thread_counter++;
running_thread_counter++;
- G_UNLOCK (thread_counter);
+ G_UNLOCK (thread_counter_pools);
g_usleep (g_random_int_range (0, 4000));
- G_LOCK (thread_counter);
+ G_LOCK (thread_counter_pools);
running_thread_counter--;
- G_UNLOCK (thread_counter);
+ leftover_task_counter--;
+
+ DEBUG_MSG (("[pool] ---> [%3.3d] exiting thread (abs count:%ld, "
+ "running count:%ld, left over:%ld)",
+ id, abs_thread_counter,
+ running_thread_counter, leftover_task_counter));
+ G_UNLOCK (thread_counter_pools);
}
-int
-main (int argc,
- char *argv[])
+static void
+test_thread_pools (void)
{
GThreadPool *pool1, *pool2, *pool3;
+ guint runs;
guint i;
+
+ pool1 = g_thread_pool_new ((GFunc)test_thread_pools_entry_func, NULL, 3, FALSE, NULL);
+ pool2 = g_thread_pool_new ((GFunc)test_thread_pools_entry_func, NULL, 5, TRUE, NULL);
+ pool3 = g_thread_pool_new ((GFunc)test_thread_pools_entry_func, NULL, 7, TRUE, NULL);
+
+ runs = 300;
+ for (i = 0; i < runs; i++)
+ {
+ g_thread_pool_push (pool1, GUINT_TO_POINTER (i + 1), NULL);
+ g_thread_pool_push (pool2, GUINT_TO_POINTER (i + 1), NULL);
+ g_thread_pool_push (pool3, GUINT_TO_POINTER (i + 1), NULL);
+
+ G_LOCK (thread_counter_pools);
+ leftover_task_counter += 3;
+ G_UNLOCK (thread_counter_pools);
+ }
+
+ g_thread_pool_free (pool1, TRUE, TRUE);
+ g_thread_pool_free (pool2, FALSE, TRUE);
+ g_thread_pool_free (pool3, FALSE, TRUE);
+
+ g_assert (runs * 3 == abs_thread_counter + leftover_task_counter);
+ g_assert (running_thread_counter == 0);
+}
+
+static gint
+test_thread_sort_compare_func (gconstpointer a, gconstpointer b, gpointer user_data)
+{
+ guint32 id1, id2;
+
+ id1 = GPOINTER_TO_UINT (a);
+ id2 = GPOINTER_TO_UINT (b);
+
+ return (id1 > id2 ? +1 : id1 == id2 ? 0 : -1);
+}
+
+static void
+test_thread_sort_entry_func (gpointer data, gpointer user_data)
+{
+ guint thread_id;
+ gboolean is_sorted;
+
+ G_LOCK (last_thread);
+
+ thread_id = GPOINTER_TO_UINT (data);
+ is_sorted = GPOINTER_TO_INT (user_data);
+
+ DEBUG_MSG (("%s ---> entered thread:%2.2d, last thread:%2.2d",
+ is_sorted ? "[ sorted]" : "[unsorted]",
+ thread_id, last_thread_id));
+
+ if (is_sorted) {
+ static gboolean last_failed = FALSE;
+
+ if (last_thread_id > thread_id) {
+ if (last_failed) {
+ g_assert (last_thread_id <= thread_id);
+ }
+
+ /* Here we remember one fail and if it concurrently fails, it
+ * can not be sorted. the last thread id might be < this thread
+ * id if something is added to the queue since threads were
+ * created
+ */
+ last_failed = TRUE;
+ } else {
+ last_failed = FALSE;
+ }
+
+ last_thread_id = thread_id;
+ }
+
+ G_UNLOCK (last_thread);
+
+ g_usleep (WAIT * 1000);
+}
+
+static void
+test_thread_sort (gboolean sort)
+{
+ GThreadPool *pool;
+ guint limit;
+ guint max_threads;
+ gint i;
+
+ limit = MAX_THREADS * 10;
+
+ if (sort) {
+ max_threads = 1;
+ } else {
+ max_threads = MAX_THREADS;
+ }
+
+ /* It is important that we only have a maximum of 1 thread for this
+ * test since the results can not be guranteed to be sorted if > 1.
+ *
+ * Threads are scheduled by the operating system and are executed at
+ * random. It cannot be assumed that threads are executed in the
+ * order they are created. This was discussed in bug #334943.
+ */
+
+ pool = g_thread_pool_new (test_thread_sort_entry_func,
+ GINT_TO_POINTER (sort),
+ max_threads,
+ FALSE,
+ NULL);
+
+ g_thread_pool_set_max_unused_threads (MAX_UNUSED_THREADS);
+
+ if (sort) {
+ g_thread_pool_set_sort_function (pool,
+ test_thread_sort_compare_func,
+ GUINT_TO_POINTER (69));
+ }
+
+ for (i = 0; i < limit; i++) {
+ guint id;
+
+ id = g_random_int_range (1, limit) + 1;
+ g_thread_pool_push (pool, GUINT_TO_POINTER (id), NULL);
+ DEBUG_MSG (("%s ===> pushed new thread with id:%d, number "
+ "of threads:%d, unprocessed:%d",
+ sort ? "[ sorted]" : "[unsorted]",
+ id,
+ g_thread_pool_get_num_threads (pool),
+ g_thread_pool_unprocessed (pool)));
+ }
+
+ g_assert (g_thread_pool_get_max_threads (pool) == max_threads);
+ g_assert (g_thread_pool_get_num_threads (pool) == g_thread_pool_get_max_threads (pool));
+}
+
+static void
+test_thread_idle_time_entry_func (gpointer data, gpointer user_data)
+{
+ guint thread_id;
+
+ thread_id = GPOINTER_TO_UINT (data);
+
+ DEBUG_MSG (("[idle] ---> entered thread:%2.2d", thread_id));
+
+ g_usleep (WAIT * 1000);
+
+ DEBUG_MSG (("[idle] <--- exiting thread:%2.2d", thread_id));
+}
+
+static gboolean
+test_thread_idle_timeout (gpointer data)
+{
+ guint interval;
+ gint i;
+
+ interval = GPOINTER_TO_UINT (data);
+
+ for (i = 0; i < 2; i++) {
+ g_thread_pool_push (idle_pool, GUINT_TO_POINTER (100 + i), NULL);
+ DEBUG_MSG (("[idle] ===> pushed new thread with id:%d, number "
+ "of threads:%d, unprocessed:%d",
+ 100 + i,
+ g_thread_pool_get_num_threads (idle_pool),
+ g_thread_pool_unprocessed (idle_pool)));
+ }
+
+
+ return FALSE;
+}
+
+static void
+test_thread_idle_time ()
+{
+ guint limit = 50;
+ guint interval = 10000;
+ gint i;
+
+ idle_pool = g_thread_pool_new (test_thread_idle_time_entry_func,
+ NULL,
+ MAX_THREADS,
+ FALSE,
+ NULL);
+
+ g_thread_pool_set_max_unused_threads (MAX_UNUSED_THREADS);
+ g_thread_pool_set_max_idle_time (interval);
+
+ g_assert (g_thread_pool_get_max_unused_threads () == MAX_UNUSED_THREADS);
+ g_assert (g_thread_pool_get_max_idle_time () == interval);
+
+ for (i = 0; i < limit; i++) {
+ g_thread_pool_push (idle_pool, GUINT_TO_POINTER (i + 1), NULL);
+ DEBUG_MSG (("[idle] ===> pushed new thread with id:%d, "
+ "number of threads:%d, unprocessed:%d",
+ i,
+ g_thread_pool_get_num_threads (idle_pool),
+ g_thread_pool_unprocessed (idle_pool)));
+ }
+
+ g_timeout_add ((interval - 1000),
+ test_thread_idle_timeout,
+ GUINT_TO_POINTER (interval));
+}
+
+static gboolean
+test_check_start_and_stop (gpointer user_data)
+{
+ static guint test_number = 0;
+ static gboolean run_next = FALSE;
+ gboolean continue_timeout = TRUE;
+ gboolean quit = TRUE;
+
+ if (test_number == 0) {
+ run_next = TRUE;
+ DEBUG_MSG (("***** RUNNING TEST %2.2d *****", test_number));
+ }
+
+ if (run_next) {
+ test_number++;
+
+ switch (test_number) {
+ case 1:
+ test_thread_functions ();
+ break;
+ case 2:
+ test_thread_stop_unused ();
+ break;
+ case 3:
+ test_thread_pools ();
+ break;
+ case 4:
+ test_thread_sort (FALSE);
+ break;
+ case 5:
+ test_thread_sort (TRUE);
+ break;
+ case 6:
+ test_thread_stop_unused ();
+ break;
+ case 7:
+ test_thread_idle_time ();
+ break;
+ default:
+ DEBUG_MSG (("***** END OF TESTS *****"));
+ g_main_loop_quit (main_loop);
+ continue_timeout = FALSE;
+ break;
+ }
+
+ run_next = FALSE;
+ return TRUE;
+ }
+
+ if (test_number == 3) {
+ G_LOCK (thread_counter_pools);
+ quit &= running_thread_counter <= 0;
+ DEBUG_MSG (("***** POOL RUNNING THREAD COUNT:%ld",
+ running_thread_counter));
+ G_UNLOCK (thread_counter_pools);
+ }
+
+ if (test_number == 4 || test_number == 5) {
+ G_LOCK (thread_counter_sort);
+ quit &= sort_thread_counter <= 0;
+ DEBUG_MSG (("***** POOL SORT THREAD COUNT:%ld",
+ sort_thread_counter));
+ G_UNLOCK (thread_counter_sort);
+ }
+
+ if (test_number == 7) {
+ guint idle;
+
+ idle = g_thread_pool_get_num_unused_threads ();
+ quit &= idle < 1;
+ DEBUG_MSG (("***** POOL IDLE THREAD COUNT:%d, UNPROCESSED JOBS:%d",
+ idle, g_thread_pool_unprocessed (idle_pool)));
+ }
+
+ if (quit) {
+ run_next = TRUE;
+ }
+
+ return continue_timeout;
+}
+
+int
+main (int argc, char *argv[])
+{
/* Only run the test, if threads are enabled and a default thread
implementation is available */
+
#if defined(G_THREADS_ENABLED) && ! defined(G_THREADS_IMPL_NONE)
g_thread_init (NULL);
-
- pool1 = g_thread_pool_new (thread_pool_func, 3, 0, FALSE,
- G_THREAD_PRIORITY_NORMAL, FALSE, NULL);
- pool2 = g_thread_pool_new (thread_pool_func, 5, 0, FALSE,
- G_THREAD_PRIORITY_LOW, FALSE, NULL);
- pool3 = g_thread_pool_new (thread_pool_func, 7, 0, FALSE,
- G_THREAD_PRIORITY_LOW, TRUE, NULL);
-
- for (i = 0; i < RUNS; i++)
- {
- g_thread_pool_push (pool1, GUINT_TO_POINTER (1));
- g_thread_pool_push (pool2, GUINT_TO_POINTER (1));
- g_thread_pool_push (pool3, GUINT_TO_POINTER (1));
- }
-
- g_thread_pool_free (pool1, FALSE, TRUE);
- g_thread_pool_free (pool2, FALSE, TRUE);
- g_thread_pool_free (pool3, FALSE, TRUE);
- g_assert (RUNS * 3 == abs_thread_counter);
- g_assert (running_thread_counter == 0);
+ DEBUG_MSG (("Starting... (in one second)"));
+ g_timeout_add (1000, test_check_start_and_stop, NULL);
+
+ main_loop = g_main_loop_new (NULL, FALSE);
+ g_main_loop_run (main_loop);
#endif
+
return 0;
}
projects / platform / upstream / glib.git / blobdiff