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/**
* @file
*
* @brief Thread Queue Initialize
* @ingroup ScoreThreadQ
*/
/*
* COPYRIGHT (c) 1989-2014.
* 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.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <rtems/score/threadqimpl.h>
#include <rtems/score/rbtreeimpl.h>
#include <rtems/score/threadimpl.h>
RTEMS_STATIC_ASSERT(
#if defined(RTEMS_SMP)
offsetof( Thread_queue_Syslock_queue, Queue.Lock.next_ticket )
#else
offsetof( Thread_queue_Syslock_queue, reserved[ 0 ] )
#endif
== offsetof( struct _Thread_queue_Queue, _Lock._next_ticket ),
THREAD_QUEUE_SYSLOCK_QUEUE_NEXT_TICKET
);
RTEMS_STATIC_ASSERT(
#if defined(RTEMS_SMP)
offsetof( Thread_queue_Syslock_queue, Queue.Lock.now_serving )
#else
offsetof( Thread_queue_Syslock_queue, reserved[ 1 ] )
#endif
== offsetof( struct _Thread_queue_Queue, _Lock._now_serving ),
THREAD_QUEUE_SYSLOCK_QUEUE_NOW_SERVING
);
RTEMS_STATIC_ASSERT(
offsetof( Thread_queue_Syslock_queue, Queue.heads )
== offsetof( struct _Thread_queue_Queue, _heads ),
THREAD_QUEUE_SYSLOCK_QUEUE_HEADS
);
RTEMS_STATIC_ASSERT(
offsetof( Thread_queue_Syslock_queue, Queue.owner )
== offsetof( struct _Thread_queue_Queue, _owner ),
THREAD_QUEUE_SYSLOCK_QUEUE_OWNER
);
RTEMS_STATIC_ASSERT(
offsetof( Thread_queue_Syslock_queue, Queue.name )
== offsetof( struct _Thread_queue_Queue, _name ),
THREAD_QUEUE_SYSLOCK_QUEUE_NAME
);
RTEMS_STATIC_ASSERT(
sizeof( Thread_queue_Syslock_queue )
== sizeof( struct _Thread_queue_Queue ),
THREAD_QUEUE_SYSLOCK_QUEUE_SIZE
);
#if defined(RTEMS_SMP)
void _Thread_queue_Do_acquire_critical(
Thread_queue_Control *the_thread_queue,
ISR_lock_Context *lock_context
)
{
_Thread_queue_Queue_acquire_critical(
&the_thread_queue->Queue,
&the_thread_queue->Lock_stats,
lock_context
);
#if defined(RTEMS_DEBUG)
the_thread_queue->owner = _SMP_lock_Who_am_I();
#endif
}
void _Thread_queue_Acquire(
Thread_queue_Control *the_thread_queue,
Thread_queue_Context *queue_context
)
{
_ISR_lock_ISR_disable( &queue_context->Lock_context.Lock_context );
_Thread_queue_Queue_acquire_critical(
&the_thread_queue->Queue,
&the_thread_queue->Lock_stats,
&queue_context->Lock_context.Lock_context
);
#if defined(RTEMS_DEBUG)
the_thread_queue->owner = _SMP_lock_Who_am_I();
#endif
}
void _Thread_queue_Do_release_critical(
Thread_queue_Control *the_thread_queue,
ISR_lock_Context *lock_context
)
{
#if defined(RTEMS_DEBUG)
_Assert( _Thread_queue_Is_lock_owner( the_thread_queue ) );
the_thread_queue->owner = SMP_LOCK_NO_OWNER;
#endif
_Thread_queue_Queue_release_critical(
&the_thread_queue->Queue,
lock_context
);
}
void _Thread_queue_Release(
Thread_queue_Control *the_thread_queue,
Thread_queue_Context *queue_context
)
{
#if defined(RTEMS_DEBUG)
_Assert( _Thread_queue_Is_lock_owner( the_thread_queue ) );
the_thread_queue->owner = SMP_LOCK_NO_OWNER;
#endif
_Thread_queue_Queue_release_critical(
&the_thread_queue->Queue,
&queue_context->Lock_context.Lock_context
);
_ISR_lock_ISR_enable( &queue_context->Lock_context.Lock_context );
}
#endif
const char _Thread_queue_Object_name[] = { '\0' };
void _Thread_queue_Initialize(
Thread_queue_Control *the_thread_queue,
const char *name
)
{
_Thread_queue_Queue_initialize( &the_thread_queue->Queue, name );
#if defined(RTEMS_SMP)
_SMP_lock_Stats_initialize( &the_thread_queue->Lock_stats, "Thread Queue" );
#endif
}
void _Thread_queue_Object_initialize( Thread_queue_Control *the_thread_queue )
{
_Thread_queue_Initialize( the_thread_queue, _Thread_queue_Object_name );
}
#if defined(RTEMS_MULTIPROCESSING)
void _Thread_queue_MP_callout_do_nothing(
Thread_Control *the_proxy,
Objects_Id mp_id
)
{
/* Do nothing */
}
#endif
size_t _Thread_queue_Queue_get_name_and_id(
const Thread_queue_Queue *queue,
char *buffer,
size_t buffer_size,
Objects_Id *id
)
{
const char *name;
name = queue->name;
if ( name == _Thread_queue_Object_name ) {
const Thread_queue_Object *queue_object;
queue_object = THREAD_QUEUE_QUEUE_TO_OBJECT( queue );
*id = queue_object->Object.id;
return _Objects_Name_to_string(
queue_object->Object.name,
false,
buffer,
buffer_size
);
} else {
if ( name == NULL ) {
name = _Thread_queue_Object_name;
}
*id = 0;
return strlcpy( buffer, name, buffer_size );
}
}
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