From ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Thu, 11 May 1995 17:39:37 +0000 Subject: Initial revision --- cpukit/score/include/rtems/score/states.h | 337 ++++++++++++++++++++++++++++++ 1 file changed, 337 insertions(+) create mode 100644 cpukit/score/include/rtems/score/states.h (limited to 'cpukit/score/include/rtems/score/states.h') diff --git a/cpukit/score/include/rtems/score/states.h b/cpukit/score/include/rtems/score/states.h new file mode 100644 index 0000000000..56f67ecc49 --- /dev/null +++ b/cpukit/score/include/rtems/score/states.h @@ -0,0 +1,337 @@ +/* states.h + * + * This include file contains all RTEMS state information. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#ifndef __RTEMS_STATES_h +#define __RTEMS_STATES_h + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * The following type defines the control block used to manage a + * thread's state. + */ + +typedef unsigned32 States_Control; + +/* + * The following constants define the individual states which may be + * be used to compose and manipulate a thread's state. + */ + +#define STATES_ALL_SET 0xffff /* all states */ +#define STATES_READY 0x0000 /* ready to run */ +#define STATES_DORMANT 0x0001 /* created but not started */ +#define STATES_SUSPENDED 0x0002 /* waiting to be resumed */ +#define STATES_TRANSIENT 0x0004 /* thread in transition */ +#define STATES_DELAYING 0x0008 /* wait for timeout */ +#define STATES_WAITING_FOR_BUFFER 0x0010 /* wait for partition buffer */ +#define STATES_WAITING_FOR_SEGMENT 0x0020 /* wait for region segment */ +#define STATES_WAITING_FOR_MESSAGE 0x0040 /* wait for message */ +#define STATES_WAITING_FOR_EVENT 0x0080 /* wait for event */ +#define STATES_WAITING_FOR_SEMAPHORE 0x0100 /* wait for semaphore */ +#define STATES_WAITING_FOR_TIME 0x0200 /* wait for specific TOD */ +#define STATES_WAITING_FOR_RPC_REPLY 0x0400 /* wait for rpc reply */ +#define STATES_WAITING_FOR_PERIOD 0x0800 /* rate monotonic delay */ + +#define STATES_LOCALLY_BLOCKED ( STATES_WAITING_FOR_BUFFER | \ + STATES_WAITING_FOR_SEGMENT | \ + STATES_WAITING_FOR_MESSAGE | \ + STATES_WAITING_FOR_SEMAPHORE ) + +#define STATES_WAITING_ON_THREAD_QUEUE \ + ( STATES_LOCALLY_BLOCKED | \ + STATES_WAITING_FOR_RPC_REPLY ) + +#define STATES_BLOCKED ( STATES_DELAYING | \ + STATES_WAITING_FOR_TIME | \ + STATES_WAITING_FOR_PERIOD | \ + STATES_WAITING_FOR_EVENT | \ + STATES_WAITING_ON_THREAD_QUEUE ) + +/* + * _States_Set + * + * DESCRIPTION: + * + * This function sets the given states_to_set into the current_state + * passed in. The result is returned to the user in current_state. + */ + +STATIC INLINE States_Control _States_Set ( + States_Control states_to_set, + States_Control current_state +); + +/* + * _States_Clear + * + * DESCRIPTION: + * + * This function clears the given states_to_clear into the current_state + * passed in. The result is returned to the user in current_state. + */ + +STATIC INLINE States_Control _States_Clear ( + States_Control states_to_clear, + States_Control current_state +); + +/* + * _States_Is_ready + * + * DESCRIPTION: + * + * This function returns TRUE if the_states indicates that the + * state is READY, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_ready ( + States_Control the_states +); + +/* + * _States_Is_only_dormant + * + * DESCRIPTION: + * + * This function returns TRUE if the DORMANT state is the ONLY state + * set in the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_only_dormant ( + States_Control the_states +); + +/* + * _States_Is_dormant + * + * DESCRIPTION: + * + * This function returns TRUE if the DORMANT state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_dormant ( + States_Control the_states +); + +/* + * _States_Is_suspended + * + * DESCRIPTION: + * + * This function returns TRUE if the SUSPENDED state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_suspended ( + States_Control the_states +); + +/* + * _States_Is_Transient + * + * DESCRIPTION: + * + * This function returns TRUE if the TRANSIENT state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_transient ( + States_Control the_states +); + +/* + * _States_Is_delaying + * + * DESCRIPTION: + * + * This function returns TRUE if the DELAYING state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_delaying ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_buffer + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_BUFFER state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_buffer ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_segment + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_SEGMENT state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_segment ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_message + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_MESSAGE state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_message ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_event + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_EVENT state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_event ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_semaphore + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_SEMAPHORE state + * is set in the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_semaphore ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_time + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_TIME state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_time ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_rpc_reply + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_TIME state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_rpc_reply ( + States_Control the_states +); + +/* + * _States_Is_waiting_for_period + * + * DESCRIPTION: + * + * This function returns TRUE if the WAITING_FOR_PERIOD state is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_for_period ( + States_Control the_states +); + +/* + * _States_Is_locally_blocked + * + * DESCRIPTION: + * + * This function returns TRUE if one of the states which indicates + * that a task is blocked waiting for a local resource is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_locally_blocked ( + States_Control the_states +); + +/* + * _States_Is_waiting_on_thread_queue + * + * DESCRIPTION: + * + * This function returns TRUE if one of the states which indicates + * that a task is blocked waiting for a local resource is set in + * the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_waiting_on_thread_queue ( + States_Control the_states +); + +/* + * _States_Is_blocked + * + * DESCRIPTION: + * + * This function returns TRUE if one of the states which indicates + * that a task is blocked is set in the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Is_blocked ( + States_Control the_states +); + +/* + * _States_Are_set + * + * DESCRIPTION: + * + * This function returns TRUE if any of the states in the mask + * are set in the_states, and FALSE otherwise. + */ + +STATIC INLINE boolean _States_Are_set ( + States_Control the_states, + States_Control mask +); + +#include + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ -- cgit v1.2.3