diff options
Diffstat (limited to 'cpukit/score/include/rtems/score/coresem.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/coresem.h | 153 |
1 files changed, 7 insertions, 146 deletions
diff --git a/cpukit/score/include/rtems/score/coresem.h b/cpukit/score/include/rtems/score/coresem.h index 3bb8773430..7a2040862a 100644 --- a/cpukit/score/include/rtems/score/coresem.h +++ b/cpukit/score/include/rtems/score/coresem.h @@ -21,6 +21,12 @@ #ifndef _RTEMS_SCORE_CORESEM_H #define _RTEMS_SCORE_CORESEM_H +#include <rtems/score/tqdata.h> + +#ifdef __cplusplus +extern "C" { +#endif + /** * @defgroup ScoreSemaphore Semaphore Handler * @@ -31,28 +37,6 @@ */ /**@{*/ -#include <rtems/score/thread.h> -#include <rtems/score/threadq.h> -#include <rtems/score/priority.h> -#include <rtems/score/watchdog.h> - -#ifdef __cplusplus -extern "C" { -#endif - -#if defined(RTEMS_POSIX_API) || defined(RTEMS_MULTIPROCESSING) - #define RTEMS_SCORE_CORESEM_ENABLE_SEIZE_BODY -#endif - -/** - * The following type defines the callout which the API provides - * to support global/multiprocessor operations on semaphores. - */ -typedef void ( *CORE_semaphore_API_mp_support_callout )( - Thread_Control *, - Objects_Id - ); - /** * Blocking disciplines for a semaphore. */ @@ -66,39 +50,6 @@ typedef enum { } CORE_semaphore_Disciplines; /** - * Core Semaphore handler return statuses. - */ -typedef enum { - /** This status indicates that the operation completed successfully. */ - CORE_SEMAPHORE_STATUS_SUCCESSFUL, - /** This status indicates that the calling task did not want to block - * and the operation was unable to complete immediately because the - * resource was unavailable. - */ - CORE_SEMAPHORE_STATUS_UNSATISFIED_NOWAIT, - /** This status indicates that the thread was blocked waiting for an - * operation to complete and the semaphore was deleted. - */ - CORE_SEMAPHORE_WAS_DELETED, - /** This status indicates that the calling task was willing to block - * but the operation was unable to complete within the time allotted - * because the resource never became available. - */ - CORE_SEMAPHORE_TIMEOUT, - /** This status indicates that an attempt was made to unlock the semaphore - * and this would have made its count greater than that allowed. - */ - CORE_SEMAPHORE_MAXIMUM_COUNT_EXCEEDED -} CORE_semaphore_Status; - -/** - * @brief Core semaphore last status value. - * - * This is the last status value. - */ -#define CORE_SEMAPHORE_STATUS_LAST CORE_SEMAPHORE_MAXIMUM_COUNT_EXCEEDED - -/** * The following defines the control block used to manage the * attributes of each semaphore. */ @@ -128,101 +79,11 @@ typedef struct { uint32_t count; } CORE_semaphore_Control; -/** - * @brief Initialize the semaphore based on the parameters passed. - * - * DESCRIPTION: - * - * This package is the implementation of the CORE Semaphore Handler. - * This core object utilizes standard Dijkstra counting semaphores to provide - * synchronization and mutual exclusion capabilities. - * - * This routine initializes the semaphore based on the parameters passed. - * - * @param[in] the_semaphore is the semaphore to initialize - * @param[in] the_semaphore_attributes define the behavior of this instance - * @param[in] initial_value is the initial count of the semaphore - */ -void _CORE_semaphore_Initialize( - CORE_semaphore_Control *the_semaphore, - CORE_semaphore_Attributes *the_semaphore_attributes, - uint32_t initial_value -); - -#if defined(RTEMS_SCORE_CORESEM_ENABLE_SEIZE_BODY) - /** - * This routine attempts to receive a unit from @a the_semaphore. - * If a unit is available or if the wait flag is false, then the routine - * returns. Otherwise, the calling task is blocked until a unit becomes - * available. - * - * @param[in] the_semaphore is the semaphore to seize - * @param[in] id is the Id of the API level Semaphore object associated - * with this instance of a SuperCore Semaphore - * @param[in] wait indicates if the caller is willing to block - * @param[in] timeout is the number of ticks the calling thread is willing - * to wait if @a wait is true. - */ - void _CORE_semaphore_Seize( - CORE_semaphore_Control *the_semaphore, - Objects_Id id, - bool wait, - Watchdog_Interval timeout - ); -#endif - -/** - * @brief Surrender a unit to a semaphore. - * - * This routine frees a unit to the semaphore. If a task was blocked waiting - * for a unit from this semaphore, then that task will be readied and the unit - * given to that task. Otherwise, the unit will be returned to the semaphore. - * - * @param[in] the_semaphore is the semaphore to surrender - * @param[in] id is the Id of the API level Semaphore object associated - * with this instance of a SuperCore Semaphore - * @param[in] api_semaphore_mp_support is the routine to invoke if the - * thread unblocked is remote - * - * @retval an indication of whether the routine succeeded or failed - */ -CORE_semaphore_Status _CORE_semaphore_Surrender( - CORE_semaphore_Control *the_semaphore, - Objects_Id id, - CORE_semaphore_API_mp_support_callout api_semaphore_mp_support -); - -/** - * @brief Core semaphore flush. - * - * DESCRIPTION: - * This package is the implementation of the CORE Semaphore Handler. - * This core object utilizes standard Dijkstra counting semaphores to provide - * synchronization and mutual exclusion capabilities. - * - * This routine assists in the deletion of a semaphore by flushing the - * associated wait queue. - * - * @param[in] the_semaphore is the semaphore to flush - * @param[in] remote_extract_callout is the routine to invoke if the - * thread unblocked is remote - * @param[in] status is the status to be returned to the unblocked thread - */ -void _CORE_semaphore_Flush( - CORE_semaphore_Control *the_semaphore, - Thread_queue_Flush_callout remote_extract_callout, - uint32_t status -); - -#ifndef __RTEMS_APPLICATION__ -#include <rtems/score/coresem.inl> -#endif +/**@}*/ #ifdef __cplusplus } #endif -/**@}*/ - #endif /* end of include file */ |