diff options
Diffstat (limited to 'c/src/exec/posix/src/pthreadcreate.c')
| -rw-r--r-- | c/src/exec/posix/src/pthreadcreate.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/c/src/exec/posix/src/pthreadcreate.c b/c/src/exec/posix/src/pthreadcreate.c deleted file mode 100644 index 7c6e7db132..0000000000 --- a/c/src/exec/posix/src/pthreadcreate.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * 16.1.2 Thread Creation, P1003.1c/Draft 10, p. 144 - * - * 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. - * - * $Id$ - */ - -#if HAVE_CONFIG_H -#include "config.h" -#endif - -#include <pthread.h> -#include <errno.h> - -#include <rtems/system.h> -#include <rtems/score/thread.h> -#include <rtems/posix/pthread.h> -#include <rtems/posix/priority.h> -#include <rtems/posix/time.h> - -int pthread_create( - pthread_t *thread, - const pthread_attr_t *attr, - void *(*start_routine)( void * ), - void *arg -) -{ - const pthread_attr_t *the_attr; - Priority_Control core_priority; - Thread_CPU_budget_algorithms budget_algorithm; - Thread_CPU_budget_algorithm_callout budget_callout; - boolean is_fp; - boolean status; - Thread_Control *the_thread; - POSIX_API_Control *api; - int schedpolicy = SCHED_RR; - struct sched_param schedparam; - - the_attr = (attr) ? attr : &_POSIX_Threads_Default_attributes; - - if ( !the_attr->is_initialized ) - return EINVAL; - - /* - * Core Thread Initialize insures we get the minimum amount of - * stack space if it is allowed to allocate it itself. - */ - - if ( the_attr->stackaddr && !_Stack_Is_enough( the_attr->stacksize ) ) - return EINVAL; - -#if 0 - int cputime_clock_allowed; /* see time.h */ - POSIX_NOT_IMPLEMENTED(); -#endif - - /* - * P1003.1c/Draft 10, p. 121. - * - * If inheritsched is set to PTHREAD_INHERIT_SCHED, then this thread - * inherits scheduling attributes from the creating thread. If it is - * PTHREAD_EXPLICIT_SCHED, then scheduling parameters come from the - * attributes structure. - */ - - switch ( the_attr->inheritsched ) { - case PTHREAD_INHERIT_SCHED: - api = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ]; - schedpolicy = api->schedpolicy; - schedparam = api->schedparam; - break; - - case PTHREAD_EXPLICIT_SCHED: - schedpolicy = the_attr->schedpolicy; - schedparam = the_attr->schedparam; - break; - - default: - return EINVAL; - } - - /* - * Check the contentionscope since rtems only supports PROCESS wide - * contention (i.e. no system wide contention). - */ - - if ( the_attr->contentionscope != PTHREAD_SCOPE_PROCESS ) - return ENOTSUP; - - /* - * Interpret the scheduling parameters. - */ - - if ( !_POSIX_Priority_Is_valid( schedparam.sched_priority ) ) - return EINVAL; - - core_priority = _POSIX_Priority_To_core( schedparam.sched_priority ); - - /* - * Set the core scheduling policy information. - */ - - budget_callout = NULL; - budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_NONE; - - switch ( schedpolicy ) { - case SCHED_OTHER: - budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_RESET_TIMESLICE; - break; - - case SCHED_FIFO: - budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_NONE; - break; - - case SCHED_RR: - budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_EXHAUST_TIMESLICE; - break; - - case SCHED_SPORADIC: - budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_CALLOUT; - budget_callout = _POSIX_Threads_Sporadic_budget_callout; - - if ( _POSIX_Timespec_to_interval( &schedparam.ss_replenish_period ) < - _POSIX_Timespec_to_interval( &schedparam.ss_initial_budget ) ) - return EINVAL; - - if ( !_POSIX_Priority_Is_valid( schedparam.ss_low_priority ) ) - return EINVAL; - - break; - - default: - return EINVAL; - } - - /* - * Currently all POSIX threads are floating point if the hardware - * supports it. - */ - - -#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE ) - is_fp = TRUE; -#else - is_fp = FALSE; -#endif - - /* - * Disable dispatch for protection - */ - - _Thread_Disable_dispatch(); - - /* - * Allocate the thread control block. - * - * NOTE: Global threads are not currently supported. - */ - - the_thread = _POSIX_Threads_Allocate(); - - if ( !the_thread ) { - _Thread_Enable_dispatch(); - return EAGAIN; - } - - /* - * Initialize the core thread for this task. - */ - - status = _Thread_Initialize( - &_POSIX_Threads_Information, - the_thread, - the_attr->stackaddr, - the_attr->stacksize, - is_fp, - core_priority, - TRUE, /* preemptible */ - budget_algorithm, - budget_callout, - 0, /* isr level */ - NULL /* posix threads don't have a name */ - ); - - if ( !status ) { - _POSIX_Threads_Free( the_thread ); - _Thread_Enable_dispatch(); - return EAGAIN; - } - - /* - * finish initializing the per API structure - */ - - - api = the_thread->API_Extensions[ THREAD_API_POSIX ]; - - api->Attributes = *the_attr; - api->detachstate = the_attr->detachstate; - api->schedpolicy = schedpolicy; - api->schedparam = schedparam; - - /* - * This insures we evaluate the process-wide signals pending when we - * first run. - * - * NOTE: Since the thread starts with all unblocked, this is necessary. - */ - - the_thread->do_post_task_switch_extension = TRUE; - - /* - * POSIX threads are allocated and started in one operation. - */ - - status = _Thread_Start( - the_thread, - THREAD_START_POINTER, - start_routine, - arg, - 0 /* unused */ - ); - - if ( schedpolicy == SCHED_SPORADIC ) { - _Watchdog_Insert_ticks( - &api->Sporadic_timer, - _POSIX_Timespec_to_interval( &api->schedparam.ss_replenish_period ) - ); - } - - /* - * _Thread_Start only fails if the thread was in the incorrect state - */ - - if ( !status ) { - _POSIX_Threads_Free( the_thread ); - _Thread_Enable_dispatch(); - return EINVAL; - } - - /* - * Return the id and indicate we successfully created the thread - */ - - *thread = the_thread->Object.id; - - _Thread_Enable_dispatch(); - - return 0; -} - |