source: rtems/cpukit/posix/src/cleanuppush.c @ ca312cb

Last change on this file since ca312cb was ca312cb, checked in by Joel Sherrill <joel.sherrill@…>, on 10/13/03 at 21:37:42

2003-10-13 Joel Sherrill <joel@…>

  • src/cleanuppop.c, src/cleanuppush.c: Protect use of _Workspace_Allocate and _Workspec_Free.
  • Property mode set to 100644
File size: 1.2 KB
Line 
1/*
2 *  $Id$
3 */
4
5#if HAVE_CONFIG_H
6#include "config.h"
7#endif
8
9#include <pthread.h>
10#include <errno.h>
11
12#include <rtems/system.h>
13#include <rtems/score/chain.h>
14#include <rtems/score/isr.h>
15#include <rtems/score/thread.h>
16#include <rtems/score/wkspace.h>
17#include <rtems/posix/cancel.h>
18#include <rtems/posix/pthread.h>
19#include <rtems/posix/threadsup.h>
20
21/*PAGE
22 *
23 *  18.2.3.1 Establishing Cancellation Handlers, P1003.1c/Draft 10, p. 184
24 */
25
26void pthread_cleanup_push(
27  void   (*routine)( void * ),
28  void    *arg
29)
30{
31  POSIX_Cancel_Handler_control      *handler;
32  Chain_Control                     *handler_stack;
33  POSIX_API_Control                 *thread_support;
34 
35  if ( !routine )
36    return;          /* XXX what to do really? */
37
38  _Thread_Disable_dispatch();
39  handler = _Workspace_Allocate( sizeof( POSIX_Cancel_Handler_control ) );
40
41  if ( !handler ) {
42    _Thread_Enable_dispatch();
43    return;          /* XXX what to do really? */
44  }
45
46  thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
47
48  handler_stack = &thread_support->Cancellation_Handlers;
49
50  handler->routine = routine;
51  handler->arg = arg;
52
53  _Chain_Append( handler_stack, &handler->Node );
54
55  _Thread_Enable_dispatch();
56}
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