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Diffstat (limited to 'cpukit/posix/src/cleanuppush.c')
-rw-r--r-- | cpukit/posix/src/cleanuppush.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/cpukit/posix/src/cleanuppush.c b/cpukit/posix/src/cleanuppush.c new file mode 100644 index 0000000000..71079200ef --- /dev/null +++ b/cpukit/posix/src/cleanuppush.c @@ -0,0 +1,64 @@ +/* + * COPYRIGHT (c) 1989-2008. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <pthread.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/chain.h> +#include <rtems/score/isr.h> +#include <rtems/score/thread.h> +#include <rtems/score/wkspace.h> +#include <rtems/posix/cancel.h> +#include <rtems/posix/pthread.h> +#include <rtems/posix/threadsup.h> + +/*PAGE + * + * 18.2.3.1 Establishing Cancellation Handlers, P1003.1c/Draft 10, p. 184 + */ + +void pthread_cleanup_push( + void (*routine)( void * ), + void *arg +) +{ + POSIX_Cancel_Handler_control *handler; + Chain_Control *handler_stack; + POSIX_API_Control *thread_support; + + /* + * The POSIX standard does not address what to do when the routine + * is NULL. It also does not address what happens when we cannot + * allocate memory or anything else bad happens. + */ + if ( !routine ) + return; + + _Thread_Disable_dispatch(); + handler = _Workspace_Allocate( sizeof( POSIX_Cancel_Handler_control ) ); + + if ( handler ) { + thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ]; + + handler_stack = &thread_support->Cancellation_Handlers; + + handler->routine = routine; + handler->arg = arg; + + _Chain_Append( handler_stack, &handler->Node ); + } + _Thread_Enable_dispatch(); +} |