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-rw-r--r--cpukit/posix/src/cleanuppush.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/cpukit/posix/src/cleanuppush.c b/cpukit/posix/src/cleanuppush.c
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+/*
+ * 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();
+}