1 files changed, 67 insertions, 0 deletions
diff --git a/cpukit/posix/src/cancel.c b/cpukit/posix/src/cancel.c
new file mode 100644
index 0000000000..0167c0a328
--- /dev/null
+++ b/cpukit/posix/src/cancel.c
@@ -0,0 +1,67 @@
+/*
+ *  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>
+
+/*
+ *  18.2.1 Canceling Execution of a Thread, P1003.1c/Draft 10, p. 181
+ */
+
+int pthread_cancel(
+  pthread_t  thread
+)
+{
+  Thread_Control     *the_thread;
+  POSIX_API_Control  *thread_support;
+  Objects_Locations   location;
+
+  /*
+   *  Don't even think about deleting a resource from an ISR.
+   */
+
+  if ( _ISR_Is_in_progress() )
+    return EPROTO;
+
+  the_thread = _Thread_Get( thread, &location );
+  switch ( location ) {
+
+    case OBJECTS_LOCAL:
+      thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
+
+      thread_support->cancelation_requested = 1;
+
+      /* This enables dispatch implicitly */
+      _POSIX_Thread_Evaluate_cancellation_and_enable_dispatch( the_thread );
+      return 0;
+
+#if defined(RTEMS_MULTIPROCESSING)
+    case OBJECTS_REMOTE:
+#endif
+    case OBJECTS_ERROR:
+      break;
+  }
+
+  return EINVAL;
+}