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 291f26019..ef1229043 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 + +static pthread_once_t o = PTHREAD_ONCE_INIT; +static 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)(size_t)arg], myfunc) == 0); + EnterCriticalSection(&numThreads.cs); + numThreads.i++; + LeaveCriticalSection(&numThreads.cs); + return (void*)(size_t)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 *)(size_t)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; +} |