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Diffstat (limited to 'cancel_setcancelstate.c')
| -rw-r--r-- | cancel_setcancelstate.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/cancel_setcancelstate.c b/cancel_setcancelstate.c deleted file mode 100644 index 8eaa720..0000000 --- a/cancel_setcancelstate.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * cancel_setcancelstate.c - * - * Description: - * POSIX thread functions related to thread cancellation. - * - * -------------------------------------------------------------------------- - * - * Pthreads-win32 - POSIX Threads Library for Win32 - * Copyright(C) 1998 John E. Bossom - * Copyright(C) 1999,2002 Pthreads-win32 contributors - * - * Contact Email: rpj@ise.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" - - -int -pthread_setcancelstate (int state, int *oldstate) - /* - * ------------------------------------------------------ - * DOCPUBLIC - * This function atomically sets the calling thread's - * cancelability state to 'state' and returns the previous - * cancelability state at the location referenced by - * 'oldstate' - * - * PARAMETERS - * state, - * oldstate - * PTHREAD_CANCEL_ENABLE - * cancellation is enabled, - * - * PTHREAD_CANCEL_DISABLE - * cancellation is disabled - * - * - * DESCRIPTION - * This function atomically sets the calling thread's - * cancelability state to 'state' and returns the previous - * cancelability state at the location referenced by - * 'oldstate'. - * - * NOTES: - * 1) Use to disable cancellation around 'atomic' code that - * includes cancellation points - * - * COMPATIBILITY ADDITIONS - * If 'oldstate' is NULL then the previous state is not returned - * but the function still succeeds. (Solaris) - * - * RESULTS - * 0 successfully set cancelability type, - * EINVAL 'state' is invalid - * - * ------------------------------------------------------ - */ -{ - int result = 0; - pthread_t self = pthread_self(); - - if (self == NULL - || (state != PTHREAD_CANCEL_ENABLE - && state != PTHREAD_CANCEL_DISABLE)) - { - return EINVAL; - } - - /* - * Lock for async-cancel safety. - */ - (void) pthread_mutex_lock(&self->cancelLock); - - if (oldstate != NULL) - { - *oldstate = self->cancelState; - } - - self->cancelState = state; - - /* - * Check if there is a pending asynchronous cancel - */ - if (state == PTHREAD_CANCEL_ENABLE - && self->cancelType == PTHREAD_CANCEL_ASYNCHRONOUS - && WaitForSingleObject(self->cancelEvent, 0) == WAIT_OBJECT_0) - { - self->state = PThreadStateCanceling; - self->cancelState = PTHREAD_CANCEL_DISABLE; - ResetEvent(self->cancelEvent); - (void) pthread_mutex_unlock(&self->cancelLock); - ptw32_throw(PTW32_EPS_CANCEL); - - /* Never reached */ - } - - (void) pthread_mutex_unlock(&self->cancelLock); - - return (result); - -} /* pthread_setcancelstate */ - |