diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/pthread/timer_delete.c')
| -rw-r--r-- | libpthread/nptl/sysdeps/pthread/timer_delete.c | 70 | 
1 files changed, 70 insertions, 0 deletions
| diff --git a/libpthread/nptl/sysdeps/pthread/timer_delete.c b/libpthread/nptl/sysdeps/pthread/timer_delete.c new file mode 100644 index 000000000..48ba1f272 --- /dev/null +++ b/libpthread/nptl/sysdeps/pthread/timer_delete.c @@ -0,0 +1,70 @@ +/* Copyright (C) 2000, 2001 Free Software Foundation, Inc. +   This file is part of the GNU C Library. +   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. + +   The GNU C 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 2.1 of the +   License, or (at your option) any later version. + +   The GNU C 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 the GNU C Library; see the file COPYING.LIB.  If not, +   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +   Boston, MA 02111-1307, USA.  */ + +#include <assert.h> +#include <errno.h> +#include <pthread.h> +#include <time.h> + +#include "posix-timer.h" + + +/* Delete timer TIMERID.  */ +int +timer_delete (timerid) +     timer_t timerid; +{ +  struct timer_node *timer; +  int retval = -1; + +  pthread_mutex_lock (&__timer_mutex); + +  timer = timer_id2ptr (timerid); +  if (! timer_valid (timer)) +    /* Invalid timer ID or the timer is not in use.  */ +    __set_errno (EINVAL); +  else +    { +      if (timer->armed && timer->thread != NULL) +	{ +	  struct thread_node *thread = timer->thread; +	  assert (thread != NULL); + +	  /* If thread is cancelled while waiting for handler to terminate, +	     the mutex is unlocked and timer_delete is aborted.  */ +	  pthread_cleanup_push (__timer_mutex_cancel_handler, &__timer_mutex); + +	  /* If timer is currently being serviced, wait for it to finish.  */ +	  while (thread->current_timer == timer) +	    pthread_cond_wait (&thread->cond, &__timer_mutex); + +	  pthread_cleanup_pop (0); +        } + +      /* Remove timer from whatever queue it may be on and deallocate it.  */ +      timer->inuse = TIMER_DELETED; +      list_unlink_ip (&timer->links); +      timer_delref (timer); +      retval = 0; +    } + +  pthread_mutex_unlock (&__timer_mutex); + +  return retval; +} | 
