/**
* @file
*
* @brief Initialize Thread Handler
* @ingroup ScoreThread
*/
/*
* COPYRIGHT (c) 1989-2011.
* 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 <rtems/score/threadimpl.h>
#include <rtems/score/interr.h>
#include <rtems/score/scheduler.h>
#include <rtems/score/wkspace.h>
#define THREAD_OFFSET_ASSERT( field ) \
RTEMS_STATIC_ASSERT( \
offsetof( Thread_Control, field ) == offsetof( Thread_Proxy_control, field ), \
field \
)
THREAD_OFFSET_ASSERT( Object );
THREAD_OFFSET_ASSERT( Join_queue );
THREAD_OFFSET_ASSERT( current_state );
THREAD_OFFSET_ASSERT( current_priority );
THREAD_OFFSET_ASSERT( real_priority );
THREAD_OFFSET_ASSERT( priority_generation );
THREAD_OFFSET_ASSERT( priority_restore_hint );
THREAD_OFFSET_ASSERT( resource_count );
THREAD_OFFSET_ASSERT( Wait );
THREAD_OFFSET_ASSERT( Timer );
#if defined(RTEMS_MULTIPROCESSING)
THREAD_OFFSET_ASSERT( receive_packet );
#endif
Thread_Information _Thread_Internal_information;
void _Thread_Initialize_information(
Thread_Information *information,
Objects_APIs the_api,
uint16_t the_class,
uint32_t maximum,
bool is_string,
uint32_t maximum_name_length
)
{
_Objects_Initialize_information(
&information->Objects,
the_api,
the_class,
maximum,
_Thread_Control_size,
is_string,
maximum_name_length,
NULL
);
_Freechain_Initialize(
&information->Free_thread_queue_heads,
_Workspace_Allocate_or_fatal_error,
_Objects_Maximum_per_allocation( maximum ),
THREAD_QUEUE_HEADS_SIZE( _Scheduler_Count )
);
}
void _Thread_Handler_initialization(void)
{
rtems_stack_allocate_init_hook stack_allocate_init_hook =
rtems_configuration_get_stack_allocate_init_hook();
#if defined(RTEMS_MULTIPROCESSING)
uint32_t maximum_proxies =
_Configuration_MP_table->maximum_proxies;
#endif
if ( rtems_configuration_get_stack_allocate_hook() == NULL ||
rtems_configuration_get_stack_free_hook() == NULL)
_Terminate(
INTERNAL_ERROR_CORE,
true,
INTERNAL_ERROR_BAD_STACK_HOOK
);
if ( stack_allocate_init_hook != NULL )
(*stack_allocate_init_hook)( rtems_configuration_get_stack_space_size() );
#if defined(RTEMS_MULTIPROCESSING)
_Thread_MP_Handler_initialization( maximum_proxies );
#endif
/*
* Initialize the internal class of threads. We need an IDLE thread
* per CPU in an SMP system. In addition, if this is a loosely
* coupled multiprocessing system, account for the MPCI Server Thread.
*/
_Thread_Initialize_information(
&_Thread_Internal_information,
OBJECTS_INTERNAL_API,
OBJECTS_INTERNAL_THREADS,
_Thread_Get_maximum_internal_threads(),
false, /* true if names for this object are strings */
8 /* maximum length of each object's name */
);
}