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-rw-r--r--cpukit/posix/include/rtems/posix/spinlockimpl.h81
1 files changed, 38 insertions, 43 deletions
diff --git a/cpukit/posix/include/rtems/posix/spinlockimpl.h b/cpukit/posix/include/rtems/posix/spinlockimpl.h
index f1b5639bd1..36ef6677a0 100644
--- a/cpukit/posix/include/rtems/posix/spinlockimpl.h
+++ b/cpukit/posix/include/rtems/posix/spinlockimpl.h
@@ -11,6 +11,8 @@
* COPYRIGHT (c) 1989-2011.
* 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.
@@ -19,62 +21,55 @@
#ifndef _RTEMS_POSIX_SPINLOCKIMPL_H
#define _RTEMS_POSIX_SPINLOCKIMPL_H
-#include <rtems/posix/spinlock.h>
-#include <rtems/score/corespinlockimpl.h>
-#include <rtems/score/objectimpl.h>
-
#include <pthread.h>
+#include <rtems/score/isrlevel.h>
+
+#if defined(RTEMS_SMP)
+#include <rtems/score/percpu.h>
+#include <rtems/score/smplockticket.h>
+#endif
+
#ifdef __cplusplus
extern "C" {
#endif
-/**
- * The following defines the information control block used to manage
- * this class of objects.
- */
+#if SIZEOF_PTHREAD_SPINLOCK_T > 4
+#define POSIX_SPINLOCKS_ARE_SELF_CONTAINED
+#endif
-extern Objects_Information _POSIX_Spinlock_Information;
+typedef struct {
+#if defined(RTEMS_SMP)
+ SMP_ticket_lock_Control Lock;
+#else
+ unsigned int reserved[ 2 ];
+#endif
+ ISR_Level interrupt_state;
+} POSIX_Spinlock_Control;
-/**
- * @brief Allocate a spinlock control block.
- *
- * This function allocates a spinlock control block from
- * the inactive chain of free spinlock control blocks.
- */
-RTEMS_INLINE_ROUTINE POSIX_Spinlock_Control *_POSIX_Spinlock_Allocate( void )
-{
- return (POSIX_Spinlock_Control *)
- _Objects_Allocate( &_POSIX_Spinlock_Information );
-}
+#if !defined(POSIX_SPINLOCKS_ARE_SELF_CONTAINED)
+#if defined(RTEMS_SMP)
+extern POSIX_Spinlock_Control _POSIX_Spinlock_Global;
-/**
- * @brief Free a spinlock control block.
- *
- * This routine frees a spinlock control block to the
- * inactive chain of free spinlock control blocks.
- */
-RTEMS_INLINE_ROUTINE void _POSIX_Spinlock_Free (
- POSIX_Spinlock_Control *the_spinlock
-)
-{
- _Objects_Free( &_POSIX_Spinlock_Information, &the_spinlock->Object );
-}
+extern uint32_t _POSIX_Spinlock_Owner;
+#endif
+
+extern int _POSIX_Spinlock_Nest_level;
+#endif
RTEMS_INLINE_ROUTINE POSIX_Spinlock_Control *_POSIX_Spinlock_Get(
- pthread_spinlock_t *spinlock,
- ISR_lock_Context *lock_context
+ pthread_spinlock_t *lock
)
{
- if ( spinlock == NULL ) {
- return NULL;
- }
-
- return (POSIX_Spinlock_Control *) _Objects_Get(
- *spinlock,
- lock_context,
- &_POSIX_Spinlock_Information
- );
+#if defined(POSIX_SPINLOCKS_ARE_SELF_CONTAINED)
+ return (POSIX_Spinlock_Control *) lock;
+#elif defined(RTEMS_SMP)
+ (void) lock;
+ return &_POSIX_Spinlock_Global;
+#else
+ (void) lock;
+ return NULL;
+#endif
}
#ifdef __cplusplus