diff options
Diffstat (limited to '')
-rw-r--r-- | cpukit/posix/src/pspininit.c | 52 |
1 files changed, 7 insertions, 45 deletions
diff --git a/cpukit/posix/src/pspininit.c b/cpukit/posix/src/pspininit.c index bc131e2e81..313633a11e 100644 --- a/cpukit/posix/src/pspininit.c +++ b/cpukit/posix/src/pspininit.c @@ -11,6 +11,8 @@ * COPYRIGHT (c) 1989-2006. * On-Line Applications Research Corporation (OAR). * + * Copyright (c) 2016 embedded brains GmbH + * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rtems.org/license/LICENSE. @@ -20,58 +22,18 @@ #include "config.h" #endif -#include <pthread.h> -#include <errno.h> - -#include <rtems/system.h> #include <rtems/posix/spinlockimpl.h> -/* - * pthread_spinlock_init - * - * This directive creates a spinlock. A spinlock id is returned. - * - * Input parameters: - * spinlock - pointer to spinlock id - * pshared - is this spinlock shared between processes - * - * Output parameters: - * spinlock - spinlock id - * 0 - if successful - * error code - if unsuccessful - */ - int pthread_spin_init( pthread_spinlock_t *spinlock, int pshared ) { - POSIX_Spinlock_Control *the_spinlock; +#if defined(RTEMS_SMP) && defined(POSIX_SPINLOCKS_ARE_SELF_CONTAINED) + POSIX_Spinlock_Control *the_spinlock; - if ( !spinlock ) - return EINVAL; - - switch ( pshared ) { - case PTHREAD_PROCESS_PRIVATE: /* only supported values */ - break; - case PTHREAD_PROCESS_SHARED: - default: - return EINVAL; - } - - the_spinlock = _POSIX_Spinlock_Allocate(); - - if ( !the_spinlock ) { - _Objects_Allocator_unlock(); - return EAGAIN; - } - - _CORE_spinlock_Initialize( &the_spinlock->Spinlock ); - - _Objects_Open_u32( &_POSIX_Spinlock_Information, &the_spinlock->Object, 0 ); - - *spinlock = the_spinlock->Object.id; - - _Objects_Allocator_unlock(); + the_spinlock = _POSIX_Spinlock_Get( spinlock ); + _SMP_ticket_lock_Initialize( &the_spinlock->Lock ); +#endif return 0; } |