New upstream version 18.0.1+dfsg1
This commit is contained in:
parent
6efda2859e
commit
f2cf6cce50
1337 changed files with 41178 additions and 84670 deletions
125
deps/w32-pthreads/pthread_setcancelstate.c
vendored
125
deps/w32-pthreads/pthread_setcancelstate.c
vendored
|
|
@ -1,125 +0,0 @@
|
|||
/*
|
||||
* pthread_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) 1999,2005 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.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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
|
||||
*
|
||||
* ------------------------------------------------------
|
||||
*/
|
||||
{
|
||||
ptw32_mcs_local_node_t stateLock;
|
||||
int result = 0;
|
||||
pthread_t self = pthread_self ();
|
||||
ptw32_thread_t * sp = (ptw32_thread_t *) self.p;
|
||||
|
||||
if (sp == NULL
|
||||
|| (state != PTHREAD_CANCEL_ENABLE && state != PTHREAD_CANCEL_DISABLE))
|
||||
{
|
||||
return EINVAL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Lock for async-cancel safety.
|
||||
*/
|
||||
ptw32_mcs_lock_acquire (&sp->stateLock, &stateLock);
|
||||
|
||||
if (oldstate != NULL)
|
||||
{
|
||||
*oldstate = sp->cancelState;
|
||||
}
|
||||
|
||||
sp->cancelState = state;
|
||||
|
||||
/*
|
||||
* Check if there is a pending asynchronous cancel
|
||||
*/
|
||||
if (state == PTHREAD_CANCEL_ENABLE
|
||||
&& sp->cancelType == PTHREAD_CANCEL_ASYNCHRONOUS
|
||||
&& WaitForSingleObject (sp->cancelEvent, 0) == WAIT_OBJECT_0)
|
||||
{
|
||||
sp->state = PThreadStateCanceling;
|
||||
sp->cancelState = PTHREAD_CANCEL_DISABLE;
|
||||
ResetEvent (sp->cancelEvent);
|
||||
ptw32_mcs_lock_release (&stateLock);
|
||||
ptw32_throw (PTW32_EPS_CANCEL);
|
||||
|
||||
/* Never reached */
|
||||
}
|
||||
|
||||
ptw32_mcs_lock_release (&stateLock);
|
||||
|
||||
return (result);
|
||||
|
||||
} /* pthread_setcancelstate */
|
||||
Loading…
Add table
Add a link
Reference in a new issue