diff options
Diffstat (limited to 'pthreads/tests/once3.c')
-rw-r--r-- | pthreads/tests/once3.c | 264 |
1 files changed, 132 insertions, 132 deletions
diff --git a/pthreads/tests/once3.c b/pthreads/tests/once3.c index 981bbf7d8..291f26019 100644 --- a/pthreads/tests/once3.c +++ b/pthreads/tests/once3.c @@ -1,132 +1,132 @@ -/* - * once3.c - * - * - * -------------------------------------------------------------------------- - * - * Pthreads-win32 - POSIX Threads Library for Win32 - * Copyright(C) 1998 John E. Bossom - * Copyright(C) 1999,2005 Pthreads-win32 contributors - * - * Contact Email: rpj@callisto.canberra.edu.au - * - * The current list of contributors is contained - * in the file CONTRIBUTORS included with the source - * code distribution. The list can also be seen at the - * following World Wide Web location: - * http://sources.redhat.com/pthreads-win32/contributors.html - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library in the file COPYING.LIB; - * if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * - * -------------------------------------------------------------------------- - * - * Create several pthread_once objects and channel several threads - * through each. Make the init_routine cancelable and cancel them with - * waiters waiting. - * - * Depends on API functions: - * pthread_once() - * pthread_create() - * pthread_testcancel() - * pthread_cancel() - * pthread_once() - */ - -#define ASSERT_TRACE - -#include "test.h" - -#define NUM_THREADS 100 /* Targeting each once control */ -#define NUM_ONCE 10 - -pthread_once_t o = PTHREAD_ONCE_INIT; -pthread_once_t once[NUM_ONCE]; - -typedef struct { - int i; - CRITICAL_SECTION cs; -} sharedInt_t; - -static sharedInt_t numOnce = {0, {0}}; -static sharedInt_t numThreads = {0, {0}}; - -void -myfunc(void) -{ - EnterCriticalSection(&numOnce.cs); - numOnce.i++; - assert(numOnce.i > 0); - LeaveCriticalSection(&numOnce.cs); - /* Simulate slow once routine so that following threads pile up behind it */ - Sleep(10); - /* test for cancelation late so we're sure to have waiters. */ - pthread_testcancel(); -} - -void * -mythread(void * arg) -{ - /* - * Cancel every thread. These threads are deferred cancelable only, so - * only the thread performing the once routine (my_func) will see it (there are - * no other cancelation points here). The result will be that every thread - * eventually cancels only when it becomes the new once thread. - */ - assert(pthread_cancel(pthread_self()) == 0); - assert(pthread_once(&once[(int) arg], myfunc) == 0); - EnterCriticalSection(&numThreads.cs); - numThreads.i++; - LeaveCriticalSection(&numThreads.cs); - return 0; -} - -int -main() -{ - pthread_t t[NUM_THREADS][NUM_ONCE]; - int i, j; - - InitializeCriticalSection(&numThreads.cs); - InitializeCriticalSection(&numOnce.cs); - - for (j = 0; j < NUM_ONCE; j++) - { - once[j] = o; - - for (i = 0; i < NUM_THREADS; i++) - { - assert(pthread_create(&t[i][j], NULL, mythread, (void *) j) == 0); - } - } - - for (j = 0; j < NUM_ONCE; j++) - for (i = 0; i < NUM_THREADS; i++) - if (pthread_join(t[i][j], NULL) != 0) - printf("Join failed for [thread,once] = [%d,%d]\n", i, j); - - /* - * All threads will cancel, none will return normally from - * pthread_once and so numThreads should never be incremented. However, - * numOnce should be incremented by every thread (NUM_THREADS*NUM_ONCE). - */ - assert(numOnce.i == NUM_ONCE * NUM_THREADS); - assert(numThreads.i == 0); - - DeleteCriticalSection(&numOnce.cs); - DeleteCriticalSection(&numThreads.cs); - - return 0; -} +/*
+ * once3.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Pthreads-win32 - POSIX Threads Library for Win32
+ * Copyright(C) 1998 John E. Bossom
+ * Copyright(C) 1999,2005 Pthreads-win32 contributors
+ *
+ * Contact Email: rpj@callisto.canberra.edu.au
+ *
+ * The current list of contributors is contained
+ * in the file CONTRIBUTORS included with the source
+ * code distribution. The list can also be seen at the
+ * following World Wide Web location:
+ * http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library in the file COPYING.LIB;
+ * if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Create several pthread_once objects and channel several threads
+ * through each. Make the init_routine cancelable and cancel them with
+ * waiters waiting.
+ *
+ * Depends on API functions:
+ * pthread_once()
+ * pthread_create()
+ * pthread_testcancel()
+ * pthread_cancel()
+ * pthread_once()
+ */
+
+/* #define ASSERT_TRACE */
+
+#include "test.h"
+
+#define NUM_THREADS 100 /* Targeting each once control */
+#define NUM_ONCE 10
+
+pthread_once_t o = PTHREAD_ONCE_INIT;
+pthread_once_t once[NUM_ONCE];
+
+typedef struct {
+ int i;
+ CRITICAL_SECTION cs;
+} sharedInt_t;
+
+static sharedInt_t numOnce = {0, {0}};
+static sharedInt_t numThreads = {0, {0}};
+
+void
+myfunc(void)
+{
+ EnterCriticalSection(&numOnce.cs);
+ numOnce.i++;
+ assert(numOnce.i > 0);
+ LeaveCriticalSection(&numOnce.cs);
+ /* Simulate slow once routine so that following threads pile up behind it */
+ Sleep(10);
+ /* test for cancelation late so we're sure to have waiters. */
+ pthread_testcancel();
+}
+
+void *
+mythread(void * arg)
+{
+ /*
+ * Cancel every thread. These threads are deferred cancelable only, so
+ * only the thread performing the once routine (my_func) will see it (there are
+ * no other cancelation points here). The result will be that every thread
+ * eventually cancels only when it becomes the new once thread.
+ */
+ assert(pthread_cancel(pthread_self()) == 0);
+ assert(pthread_once(&once[(int) arg], myfunc) == 0);
+ EnterCriticalSection(&numThreads.cs);
+ numThreads.i++;
+ LeaveCriticalSection(&numThreads.cs);
+ return 0;
+}
+
+int
+main()
+{
+ pthread_t t[NUM_THREADS][NUM_ONCE];
+ int i, j;
+
+ InitializeCriticalSection(&numThreads.cs);
+ InitializeCriticalSection(&numOnce.cs);
+
+ for (j = 0; j < NUM_ONCE; j++)
+ {
+ once[j] = o;
+
+ for (i = 0; i < NUM_THREADS; i++)
+ {
+ assert(pthread_create(&t[i][j], NULL, mythread, (void *) j) == 0);
+ }
+ }
+
+ for (j = 0; j < NUM_ONCE; j++)
+ for (i = 0; i < NUM_THREADS; i++)
+ if (pthread_join(t[i][j], NULL) != 0)
+ printf("Join failed for [thread,once] = [%d,%d]\n", i, j);
+
+ /*
+ * All threads will cancel, none will return normally from
+ * pthread_once and so numThreads should never be incremented. However,
+ * numOnce should be incremented by every thread (NUM_THREADS*NUM_ONCE).
+ */
+ assert(numOnce.i == NUM_ONCE * NUM_THREADS);
+ assert(numThreads.i == 0);
+
+ DeleteCriticalSection(&numOnce.cs);
+ DeleteCriticalSection(&numThreads.cs);
+
+ return 0;
+}
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