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Diffstat (limited to 'cpukit/posix/src/pthreadonce.c')
-rw-r--r-- | cpukit/posix/src/pthreadonce.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/cpukit/posix/src/pthreadonce.c b/cpukit/posix/src/pthreadonce.c new file mode 100644 index 0000000000..886b6ea866 --- /dev/null +++ b/cpukit/posix/src/pthreadonce.c @@ -0,0 +1,40 @@ +/* + * 16.1.8 Dynamic Package Initialization, P1003.1c/Draft 10, p. 154 + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <pthread.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/thread.h> + +int pthread_once( + pthread_once_t *once_control, + void (*init_routine)(void) +) +{ + if ( !once_control || !init_routine ) + return EINVAL; + + _Thread_Disable_dispatch(); + + if ( !once_control->init_executed ) { + once_control->is_initialized = TRUE; + once_control->init_executed = TRUE; + (*init_routine)(); + } + + _Thread_Enable_dispatch(); + return 0; +} + |