diff options
Diffstat (limited to 'pthreads/pthread_testcancel.c')
| -rw-r--r-- | pthreads/pthread_testcancel.c | 204 |
1 files changed, 102 insertions, 102 deletions
diff --git a/pthreads/pthread_testcancel.c b/pthreads/pthread_testcancel.c index ad7cdb994..7a9980bcd 100644 --- a/pthreads/pthread_testcancel.c +++ b/pthreads/pthread_testcancel.c @@ -1,102 +1,102 @@ -/* - * pthread_testcancel.c - * - * Description: - * POSIX thread functions related to thread cancellation. - * - * -------------------------------------------------------------------------- - * - * 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 - */ - -#include "pthread.h" -#include "implement.h" - - -void -pthread_testcancel (void) - /* - * ------------------------------------------------------ - * DOCPUBLIC - * This function creates a deferred cancellation point - * in the calling thread. The call has no effect if the - * current cancelability state is - * PTHREAD_CANCEL_DISABLE - * - * PARAMETERS - * N/A - * - * - * DESCRIPTION - * This function creates a deferred cancellation point - * in the calling thread. The call has no effect if the - * current cancelability state is - * PTHREAD_CANCEL_DISABLE - * - * NOTES: - * 1) Cancellation is asynchronous. Use pthread_join - * to wait for termination of thread if necessary - * - * RESULTS - * N/A - * - * ------------------------------------------------------ - */ -{ - pthread_t self = pthread_self (); - ptw32_thread_t * sp = (ptw32_thread_t *) self.p; - - if (sp == NULL) - { - return; - } - - /* - * Pthread_cancel() will have set sp->state to PThreadStateCancelPending - * and set an event, so no need to enter kernel space if - * sp->state != PThreadStateCancelPending - that only slows us down. - */ - if (sp->state != PThreadStateCancelPending) - { - return; - } - - (void) pthread_mutex_lock (&sp->cancelLock); - - if (sp->cancelState != PTHREAD_CANCEL_DISABLE) - { - ResetEvent(sp->cancelEvent); - sp->state = PThreadStateCanceling; - (void) pthread_mutex_unlock (&sp->cancelLock); - sp->cancelState = PTHREAD_CANCEL_DISABLE; - (void) pthread_mutex_unlock (&sp->cancelLock); - ptw32_throw (PTW32_EPS_CANCEL); - } - - (void) pthread_mutex_unlock (&sp->cancelLock); -} /* pthread_testcancel */ +/*
+ * pthread_testcancel.c
+ *
+ * Description:
+ * POSIX thread functions related to thread cancellation.
+ *
+ * --------------------------------------------------------------------------
+ *
+ * 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
+ */
+
+#include "pthread.h"
+#include "implement.h"
+
+
+void
+pthread_testcancel (void)
+ /*
+ * ------------------------------------------------------
+ * DOCPUBLIC
+ * This function creates a deferred cancellation point
+ * in the calling thread. The call has no effect if the
+ * current cancelability state is
+ * PTHREAD_CANCEL_DISABLE
+ *
+ * PARAMETERS
+ * N/A
+ *
+ *
+ * DESCRIPTION
+ * This function creates a deferred cancellation point
+ * in the calling thread. The call has no effect if the
+ * current cancelability state is
+ * PTHREAD_CANCEL_DISABLE
+ *
+ * NOTES:
+ * 1) Cancellation is asynchronous. Use pthread_join
+ * to wait for termination of thread if necessary
+ *
+ * RESULTS
+ * N/A
+ *
+ * ------------------------------------------------------
+ */
+{
+ pthread_t self = pthread_self ();
+ ptw32_thread_t * sp = (ptw32_thread_t *) self.p;
+
+ if (sp == NULL)
+ {
+ return;
+ }
+
+ /*
+ * Pthread_cancel() will have set sp->state to PThreadStateCancelPending
+ * and set an event, so no need to enter kernel space if
+ * sp->state != PThreadStateCancelPending - that only slows us down.
+ */
+ if (sp->state != PThreadStateCancelPending)
+ {
+ return;
+ }
+
+ (void) pthread_mutex_lock (&sp->cancelLock);
+
+ if (sp->cancelState != PTHREAD_CANCEL_DISABLE)
+ {
+ ResetEvent(sp->cancelEvent);
+ sp->state = PThreadStateCanceling;
+ sp->cancelState = PTHREAD_CANCEL_DISABLE;
+ (void) pthread_mutex_unlock (&sp->cancelLock);
+ ptw32_throw (PTW32_EPS_CANCEL);
+ /* Never returns here */
+ }
+
+ (void) pthread_mutex_unlock (&sp->cancelLock);
+} /* pthread_testcancel */
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