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-rw-r--r--cpukit/posix/src/testcancel.c57
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diff --git a/cpukit/posix/src/testcancel.c b/cpukit/posix/src/testcancel.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
+ *
+ * 18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
+ */
+
+void pthread_testcancel( void )
+{
+ POSIX_API_Control *thread_support;
+ bool cancel = false;
+
+ /*
+ * Don't even think about deleting a resource from an ISR.
+ * Besides this request is supposed to be for _Thread_Executing
+ * and the ISR context is not a thread.
+ */
+
+ if ( _ISR_Is_in_progress() )
+ return;
+
+ thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
+
+ _Thread_Disable_dispatch();
+ if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
+ thread_support->cancelation_requested )
+ cancel = true;
+ _Thread_Enable_dispatch();
+
+ if ( cancel )
+ _POSIX_Thread_Exit( _Thread_Executing, PTHREAD_CANCELED );
+}