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Diffstat (limited to 'c/src/exec/rtems/src/taskcreate.c')
| -rw-r--r-- | c/src/exec/rtems/src/taskcreate.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/c/src/exec/rtems/src/taskcreate.c b/c/src/exec/rtems/src/taskcreate.c deleted file mode 100644 index c445589687..0000000000 --- a/c/src/exec/rtems/src/taskcreate.c +++ /dev/null @@ -1,228 +0,0 @@ -/* - * RTEMS Task Manager - * - * - * COPYRIGHT (c) 1989-1999. - * 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.OARcorp.com/rtems/license.html. - * - * $Id$ - */ - -#include <rtems/system.h> -#include <rtems/rtems/status.h> -#include <rtems/rtems/support.h> -#include <rtems/rtems/modes.h> -#include <rtems/score/object.h> -#include <rtems/score/stack.h> -#include <rtems/score/states.h> -#include <rtems/rtems/tasks.h> -#include <rtems/score/thread.h> -#include <rtems/score/threadq.h> -#include <rtems/score/tod.h> -#include <rtems/score/userext.h> -#include <rtems/score/wkspace.h> -#include <rtems/score/apiext.h> -#include <rtems/score/sysstate.h> - -/*PAGE - * - * rtems_task_create - * - * This directive creates a thread by allocating and initializing a - * thread control block and a stack. The newly created thread is - * placed in the dormant state. - * - * Input parameters: - * name - user defined thread name - * initial_priority - thread priority - * stack_size - stack size in bytes - * initial_modes - initial thread mode - * attribute_set - thread attributes - * id - pointer to thread id - * - * Output parameters: - * id - thread id - * RTEMS_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -rtems_status_code rtems_task_create( - rtems_name name, - rtems_task_priority initial_priority, - unsigned32 stack_size, - rtems_mode initial_modes, - rtems_attribute attribute_set, - Objects_Id *id -) -{ - register Thread_Control *the_thread; - boolean is_fp; -#if defined(RTEMS_MULTIPROCESSING) - Objects_MP_Control *the_global_object = NULL; - boolean is_global; -#endif - boolean status; - rtems_attribute the_attribute_set; - Priority_Control core_priority; - RTEMS_API_Control *api; - ASR_Information *asr; - - - if ( !rtems_is_name_valid( name ) ) - return RTEMS_INVALID_NAME; - - /* - * Core Thread Initialize insures we get the minimum amount of - * stack space. - */ - -#if 0 - if ( !_Stack_Is_enough( stack_size ) ) - return RTEMS_INVALID_SIZE; -#endif - - /* - * Fix the attribute set to match the attributes which - * this processor (1) requires and (2) is able to support. - * First add in the required flags for attribute_set - * Typically this might include FP if the platform - * or application required all tasks to be fp aware. - * Then turn off the requested bits which are not supported. - */ - - the_attribute_set = _Attributes_Set( attribute_set, ATTRIBUTES_REQUIRED ); - the_attribute_set = - _Attributes_Clear( the_attribute_set, ATTRIBUTES_NOT_SUPPORTED ); - - if ( _Attributes_Is_floating_point( the_attribute_set ) ) - is_fp = TRUE; - else - is_fp = FALSE; - - /* - * Validate the RTEMS API priority and convert it to the core priority range. - */ - - if ( !_Attributes_Is_system_task( the_attribute_set ) ) { - if ( !_RTEMS_tasks_Priority_is_valid( initial_priority ) ) - return RTEMS_INVALID_PRIORITY; - } - - core_priority = _RTEMS_tasks_Priority_to_Core( initial_priority ); - -#if defined(RTEMS_MULTIPROCESSING) - if ( _Attributes_Is_global( the_attribute_set ) ) { - - is_global = TRUE; - - if ( !_System_state_Is_multiprocessing ) - return RTEMS_MP_NOT_CONFIGURED; - - } else - is_global = FALSE; -#endif - - /* - * Make sure system is MP if this task is global - */ - - /* - * Disable dispatch for protection - */ - - _Thread_Disable_dispatch(); - - /* - * Allocate the thread control block and -- if the task is global -- - * allocate a global object control block. - * - * NOTE: This routine does not use the combined allocate and open - * global object routine because this results in a lack of - * control over when memory is allocated and can be freed in - * the event of an error. - */ - - the_thread = _RTEMS_tasks_Allocate(); - - if ( !the_thread ) { - _Thread_Enable_dispatch(); - return RTEMS_TOO_MANY; - } - -#if defined(RTEMS_MULTIPROCESSING) - if ( is_global ) { - the_global_object = _Objects_MP_Allocate_global_object(); - - if ( _Objects_MP_Is_null_global_object( the_global_object ) ) { - _RTEMS_tasks_Free( the_thread ); - _Thread_Enable_dispatch(); - return RTEMS_TOO_MANY; - } - } -#endif - - /* - * Initialize the core thread for this task. - */ - - status = _Thread_Initialize( - &_RTEMS_tasks_Information, - the_thread, - NULL, - stack_size, - is_fp, - core_priority, - _Modes_Is_preempt(initial_modes) ? TRUE : FALSE, - _Modes_Is_timeslice(initial_modes) ? - THREAD_CPU_BUDGET_ALGORITHM_RESET_TIMESLICE : - THREAD_CPU_BUDGET_ALGORITHM_NONE, - NULL, /* no budget algorithm callout */ - _Modes_Get_interrupt_level(initial_modes), - name - ); - - if ( !status ) { -#if defined(RTEMS_MULTIPROCESSING) - if ( is_global ) - _Objects_MP_Free_global_object( the_global_object ); -#endif - _RTEMS_tasks_Free( the_thread ); - _Thread_Enable_dispatch(); - return RTEMS_UNSATISFIED; - } - - api = the_thread->API_Extensions[ THREAD_API_RTEMS ]; - asr = &api->Signal; - - asr->is_enabled = _Modes_Is_asr_disabled(initial_modes) ? FALSE : TRUE; - - *id = the_thread->Object.id; - -#if defined(RTEMS_MULTIPROCESSING) - if ( is_global ) { - - the_thread->is_global = TRUE; - - _Objects_MP_Open( - &_RTEMS_tasks_Information, - the_global_object, - name, - the_thread->Object.id - ); - - _RTEMS_tasks_MP_Send_process_packet( - RTEMS_TASKS_MP_ANNOUNCE_CREATE, - the_thread->Object.id, - name - ); - - } -#endif - - _Thread_Enable_dispatch(); - return RTEMS_SUCCESSFUL; -} |