bool _Thread_Restart(
Thread_Control *the_thread,
void *pointer_argument,
Thread_Entry_numeric_type numeric_argument
)
{
if ( !_States_Is_dormant( the_thread->current_state ) ) {
_Thread_Set_transient( the_thread );
_Thread_Reset( the_thread, pointer_argument, numeric_argument );
_Thread_Load_environment( the_thread );
_Thread_Ready( the_thread );
_User_extensions_Thread_restart( the_thread );
if ( _Thread_Is_executing ( the_thread ) )
_Thread_Restart_self();
return true;
}
return false;
}
void _Thread_Life_action_handler(
Thread_Control *executing,
Thread_Action *action,
ISR_lock_Context *lock_context
)
{
Thread_Life_state previous_life_state;
Per_CPU_Control *cpu_self;
(void) action;
previous_life_state = executing->Life.state;
executing->Life.state = previous_life_state | THREAD_LIFE_PROTECTED;
_Thread_State_release( executing, lock_context );
if ( _Thread_Is_life_terminating( previous_life_state ) ) {
_User_extensions_Thread_terminate( executing );
} else {
_Assert( _Thread_Is_life_restarting( previous_life_state ) );
_User_extensions_Thread_restart( executing );
}
cpu_self = _Thread_Dispatch_disable();
if ( _Thread_Is_life_terminating( previous_life_state ) ) {
cpu_self = _Thread_Wait_for_join( executing, cpu_self );
_Thread_Make_zombie( executing );
/* FIXME: Workaround for https://devel.rtems.org/ticket/2751 */
cpu_self->dispatch_necessary = true;
_Assert( cpu_self->heir != executing );
_Thread_Dispatch_enable( cpu_self );
RTEMS_UNREACHABLE();
}
_Assert( _Thread_Is_life_restarting( previous_life_state ) );
_Thread_State_acquire( executing, lock_context );
_Thread_Change_life_locked(
executing,
THREAD_LIFE_PROTECTED | THREAD_LIFE_RESTARTING,
0,
0
);
_Thread_State_release( executing, lock_context );
_Assert(
_Watchdog_Get_state( &executing->Timer.Watchdog ) == WATCHDOG_INACTIVE
);
_Assert(
executing->current_state == STATES_READY
|| executing->current_state == STATES_SUSPENDED
);
_User_extensions_Destroy_iterators( executing );
_Thread_Load_environment( executing );
#if ( CPU_HARDWARE_FP == TRUE ) || ( CPU_SOFTWARE_FP == TRUE )
if ( executing->fp_context != NULL ) {
_Context_Restore_fp( &executing->fp_context );
}
#endif
_Context_Restart_self( &executing->Registers );
RTEMS_UNREACHABLE();
}
void _Thread_Life_action_handler(
Thread_Control *executing,
Thread_Action *action,
Per_CPU_Control *cpu,
ISR_Level level
)
{
Thread_Life_state previous_life_state;
(void) action;
previous_life_state = executing->Life.state;
executing->Life.state = THREAD_LIFE_PROTECTED;
_Thread_Action_release_and_ISR_enable( cpu, level );
if ( _Thread_Is_life_terminating( previous_life_state ) ) {
_User_extensions_Thread_terminate( executing );
} else {
_Assert( _Thread_Is_life_restarting( previous_life_state ) );
_User_extensions_Thread_restart( executing );
}
_Thread_Disable_dispatch();
if ( _Thread_Is_life_terminating( previous_life_state ) ) {
_Thread_Make_zombie( executing );
if ( executing->Life.terminator != NULL ) {
_Thread_Clear_state(
executing->Life.terminator,
STATES_WAITING_FOR_TERMINATION
);
}
_Thread_Enable_dispatch();
_Assert_Not_reached();
} else {
_Assert( _Thread_Is_life_restarting( previous_life_state ) );
if ( _Thread_Is_life_terminating( executing->Life.state ) ) {
/* Someone deleted us in the mean-time */
_Thread_Start_life_change_for_executing( executing );
} else {
_Assert( executing->Timer.state == WATCHDOG_INACTIVE );
_Assert(
executing->current_state == STATES_READY
|| executing->current_state == STATES_SUSPENDED
);
executing->Life.state = THREAD_LIFE_NORMAL;
_Thread_Load_environment( executing );
_Thread_Restart_self( executing );
_Assert_Not_reached();
}
}
}
