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Diffstat (limited to 'cpukit/posix/src/testcancel.c')
-rw-r--r-- | cpukit/posix/src/testcancel.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/cpukit/posix/src/testcancel.c b/cpukit/posix/src/testcancel.c new file mode 100644 index 0000000000..bea71203d1 --- /dev/null +++ b/cpukit/posix/src/testcancel.c @@ -0,0 +1,57 @@ +/* + * 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 ); +} |