diff options
Diffstat (limited to '')
| -rw-r--r-- | cpukit/posix/src/pspinunlock.c | 36 |
1 files changed, 26 insertions, 10 deletions
diff --git a/cpukit/posix/src/pspinunlock.c b/cpukit/posix/src/pspinunlock.c index b92473d7c1..b508df7384 100644 --- a/cpukit/posix/src/pspinunlock.c +++ b/cpukit/posix/src/pspinunlock.c @@ -11,6 +11,8 @@ * COPYRIGHT (c) 1989-2007. * 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. @@ -21,19 +23,33 @@ #endif #include <rtems/posix/spinlockimpl.h> -#include <rtems/posix/posixapi.h> -int pthread_spin_unlock( pthread_spinlock_t *spinlock ) +int pthread_spin_unlock( pthread_spinlock_t *lock ) { POSIX_Spinlock_Control *the_spinlock; - ISR_lock_Context lock_context; - Status_Control status; + ISR_Level level; - the_spinlock = _POSIX_Spinlock_Get( spinlock, &lock_context ); - if ( the_spinlock == NULL ) { - return EINVAL; + the_spinlock = _POSIX_Spinlock_Get( lock ); + level = the_spinlock->interrupt_state; +#if defined(POSIX_SPINLOCKS_ARE_SELF_CONTAINED) +#if defined(RTEMS_SMP) + _SMP_ticket_lock_Release( + &the_spinlock->Lock, + &_Per_CPU_Get()->Lock_stats_context + ); +#endif + _ISR_Local_enable( level ); +#else + if ( --_POSIX_Spinlock_Nest_level == 0 ) { +#if defined(RTEMS_SMP) + _POSIX_Spinlock_Owner = 0xffffffff; + _SMP_ticket_lock_Release( + &the_spinlock->Lock, + &_Per_CPU_Get()->Lock_stats_context + ); +#endif + _ISR_Local_enable( level ); } - - status = _CORE_spinlock_Surrender( &the_spinlock->Spinlock, &lock_context ); - return _POSIX_Get_error( status ); +#endif + return 0; } |