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/**
* @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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/config.h>
#include <rtems/score/apiext.h>
#include <rtems/score/context.h>
#include <rtems/score/interr.h>
#include <rtems/score/isr.h>
#include <rtems/score/object.h>
#include <rtems/score/priority.h>
#include <rtems/score/scheduler.h>
#include <rtems/score/states.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/wkspace.h>
#include <rtems/config.h>
#if defined(RTEMS_SMP)
#include <rtems/bspsmp.h>
#endif
void _Thread_Handler_initialization(void)
{
uint32_t ticks_per_timeslice =
rtems_configuration_get_ticks_per_timeslice();
uint32_t maximum_extensions =
rtems_configuration_get_maximum_extensions();
rtems_stack_allocate_init_hook stack_allocate_init_hook =
rtems_configuration_get_stack_allocate_init_hook();
uint32_t maximum_internal_threads;
#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)
_Internal_error_Occurred(
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() );
_Thread_Dispatch_necessary = false;
_Thread_Executing = NULL;
_Thread_Heir = NULL;
#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
_Thread_Allocated_fp = NULL;
#endif
_Thread_Maximum_extensions = maximum_extensions;
_Thread_Ticks_per_timeslice = ticks_per_timeslice;
#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.
*/
#if defined(RTEMS_SMP)
maximum_internal_threads = rtems_configuration_get_maximum_processors();
#else
maximum_internal_threads = 1;
#endif
#if defined(RTEMS_MULTIPROCESSING)
if ( _System_state_Is_multiprocessing )
maximum_internal_threads += 1;
#endif
_Objects_Initialize_information(
&_Thread_Internal_information,
OBJECTS_INTERNAL_API,
OBJECTS_INTERNAL_THREADS,
maximum_internal_threads,
sizeof( Thread_Control ),
/* size of this object's control block */
false, /* true if names for this object are strings */
8 /* maximum length of each object's name */
#if defined(RTEMS_MULTIPROCESSING)
,
false, /* true if this is a global object class */
NULL /* Proxy extraction support callout */
#endif
);
}
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