git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1149 35acf78f-673a-0410-8e92-d51de3d6d3f4

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diff --git a/src/include/threads.h b/src/include/threads.h
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-/*
-    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
-
-    This file is part of ChibiOS/RT.
-
-    ChibiOS/RT is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 3 of the License, or
-    (at your option) any later version.
-
-    ChibiOS/RT is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file threads.h
- * @brief Threads macros and structures.
- * @addtogroup Threads
- * @{
- */
-
-#ifndef _THREADS_H_
-#define _THREADS_H_
-
-/**
- * @brief Structure representing a thread.
- *
- * @extends ThreadsQueue
- * @note Not all the listed fields are always needed, by switching off some
- *       not needed ChibiOS/RT subsystems it is possible to save RAM space by
- *       shrinking the @p Thread structure.
- */
-struct Thread {
-  Thread                *p_next;        /**< Next @p Thread in the threads
-                                             list/queue.*/
-  /* End of the fields shared with the ThreadsList structure. */
-  Thread                *p_prev;        /**< Previous @p Thread in the threads
-                                             queue.*/
-  /* End of the fields shared with the ThreadsQueue structure. */
-  tprio_t               p_prio;         /**< Thread priority.*/
-  /* End of the fields shared with the ReadyList structure. */
-  tstate_t              p_state;        /**< Current thread state.*/
-  tmode_t               p_flags;        /**< Various flags.*/
-  struct context        p_ctx;          /**< Processor context.*/
-#if CH_USE_NESTED_LOCKS
-  cnt_t                 p_locks;        /**< Number of nested locks.*/
-#endif
-#if CH_DBG_THREADS_PROFILING
-  volatile systime_t    p_time;         /**< Consumed time.
-                                             @note This field can overflow.*/
-#endif
-  /*
-   * The following fields are merged in unions because they are all
-   * state-specific fields. This trick saves some extra space for each
-   * thread in the system.
-   */
-  union {
-    msg_t               p_rdymsg;       /**< Thread wakeup code.*/
-    msg_t               p_exitcode;     /**< The thread exit code
-                                             (@p PREXIT state).*/
-    void                *p_wtobjp;      /**< Generic kernel object pointer used
-                                             for opaque access.*/
-#if CH_USE_SEMAPHORES
-    Semaphore           *p_wtsemp;      /**< Semaphore where the thread is
-                                             waiting on (@p PRWTSEM state).*/
-#endif
-#if CH_USE_MUTEXES
-    Mutex               *p_wtmtxp;      /**< Mutex where the thread is waiting
-                                             on (@p PRWTMTX state).*/
-#endif
-#if CH_USE_CONDVARS
-    CondVar             *p_wtcondp;     /**< CondVar where the thread is
-                                             waiting on (@p PRWTCOND state).*/
-#endif
-#if CH_USE_MESSAGES
-    Thread              *p_wtthdp;      /**< Destination thread for message
-                                             send @p PRSNDMSG state).*/
-#endif
-#if CH_USE_EVENTS
-    eventmask_t         p_ewmask;       /**< Enabled events mask (@p PRWTOREVT
-                                             or @p PRWTANDEVT states).*/
-#endif
-  };
-  /*
-   * Start of the optional fields.
-   */
-#if CH_USE_WAITEXIT
-  Thread                *p_waiting;     /**< Thread waiting for termination.*/
-#endif
-#if CH_USE_MESSAGES
-  ThreadsQueue          p_msgqueue;     /**< Message queue.*/
-  msg_t                 p_msg;          /**< The message.*/
-#endif
-#if CH_USE_EVENTS
-  eventmask_t           p_epending;     /**< Pending events mask.*/
-#endif
-#if CH_USE_MUTEXES
-  Mutex                 *p_mtxlist;     /**< List of the mutexes owned by this
-                                             thread, @p NULL terminated.*/
-  tprio_t               p_realprio;     /**< Thread's own, non-inherited,
-                                             priority.*/
-#endif
-#if CH_USE_DYNAMIC && CH_USE_MEMPOOLS
-  void                  *p_mpool;       /**< Memory Pool where the thread
-                                             workspace is returned.*/
-#endif
-  /* Extra fields defined in chconf.h */
-  THREAD_EXT_FIELDS
-};
-
-/** Thread state: Ready to run, waiting on the ready list.*/
-#define PRREADY         0
-/** Thread state: Currently running. */
-#define PRCURR          1
-/** Thread state: Thread created in suspended state. */
-#define PRSUSPENDED     2
-/** Thread state: Waiting on a semaphore. */
-#define PRWTSEM         3
-/** Thread state: Waiting on a mutex. */
-#define PRWTMTX         4
-/** Thread state: Waiting in @p chThdSleep() or @p chThdSleepUntil(). */
-#define PRWTCOND        5
-/** Thread state: Waiting in @p chCondWait(). */
-#define PRSLEEP         6
-/** Thread state: Waiting in @p chThdWait(). */
-#define PRWAIT          7
-/** Thread state: Waiting in @p chEvtWaitOneTimeout() or
-    @p chEvtWaitAnyTimeout(). */
-#define PRWTOREVT       8
-/** Thread state: Waiting in @p chEvtWaitAllTimeout(). */
-#define PRWTANDEVT      9
-/** Thread state: Waiting in @p chMsgSend(). */
-#define PRSNDMSG        10
-/** Thread state: Waiting in @p chMsgWait(). */
-#define PRWTMSG         11
-/** Thread state: After termination.*/
-#define PREXIT          12
-
-/*
- * Various flags into the thread p_flags field.
- */
-#define P_MEM_MODE_MASK         3       /* Thread memory mode mask.     */
-#define P_MEM_MODE_STATIC       0       /* Thread memory mode: static.  */
-#define P_MEM_MODE_HEAP         1       /* Thread memory mode: heap.    */
-#define P_MEM_MODE_MEMPOOL      2       /* Thread memory mode: mempool. */
-#define P_TERMINATE             4       /* Termination requested.       */
-
-/* Not an API, don't use into the application code.*/
-Thread *init_thread(Thread *tp, tprio_t prio);
-
-/** Thread function.*/
-typedef msg_t (*tfunc_t)(void *);
-
-/*
- * Threads APIs.
- */
-#ifdef __cplusplus
-extern "C" {
-#endif
-  Thread *chThdInit(void *wsp, size_t size,
-                    tprio_t prio, tfunc_t pf, void *arg);
-  Thread *chThdCreateStatic(void *wsp, size_t size,
-                            tprio_t prio, tfunc_t pf, void *arg);
-#if CH_USE_DYNAMIC && CH_USE_WAITEXIT && CH_USE_HEAP
-  Thread *chThdCreateFromHeap(size_t size, tprio_t prio,
-                              tfunc_t pf, void *arg);
-#endif
-#if CH_USE_DYNAMIC && CH_USE_WAITEXIT && CH_USE_MEMPOOLS
-  Thread *chThdCreateFromMemoryPool(MemoryPool *mp, tprio_t prio,
-                                    tfunc_t pf, void *arg);
-#endif
-  tprio_t chThdSetPriority(tprio_t newprio);
-  Thread *chThdResume(Thread *tp);
-  void chThdTerminate(Thread *tp);
-  void chThdSleep(systime_t time);
-  void chThdSleepUntil(systime_t time);
-  void chThdExit(msg_t msg);
-#if CH_USE_WAITEXIT
-  msg_t chThdWait(Thread *tp);
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-/** Returns the pointer to the @p Thread currently in execution.*/
-#define chThdSelf() currp
-
-/** Returns the current thread priority.*/
-#define chThdGetPriority() (currp->p_prio)
-
-/** Returns the pointer to the @p Thread local storage area, if any.*/
-#define chThdLS() (void *)(currp + 1)
-
-/**
- * Verifies if the specified thread is in the @p PREXIT state.
- *
- * @param[in] tp the pointer to the thread
- * @retval TRUE thread terminated.
- * @retval FALSE thread not terminated.
- */
-#define chThdTerminated(tp) ((tp)->p_state == PREXIT)
-
-/**
- * Verifies if the current thread has a termination request pending.
- *
- * @retval TRUE termination request pended.
- * @retval FALSE termination request not pended.
- */
-#define chThdShouldTerminate() (currp->p_flags & P_TERMINATE)
-
-/**
- * Resumes a thread created with @p chThdInit().
- *
- * @param[in] tp the pointer to the thread
- */
-#define chThdResumeI(tp) chSchReadyI(tp)
-
-/**
- * Suspends the invoking thread for the specified time.
- *
- * @param[in] time the delay in system ticks, the special values are handled as
- *                 follow:
- *                 - @a TIME_INFINITE the thread enters an infinite sleep
- *                   state.
- *                 - @a TIME_IMMEDIATE this value is accepted but interpreted
- *                   as a normal time specification not as an immediate timeout
- *                   specification.
- *                 .
- */
-#define chThdSleepS(time) chSchGoSleepTimeoutS(PRSLEEP, time)
-
-/**
- * Delays the invoking thread for the specified number of seconds.
- *
- * @param[in] sec the time in seconds
- * @note The specified time is rounded up to a value allowed by the real
- *       system clock.
- * @note The maximum specified value is implementation dependent.
- */
-#define chThdSleepSeconds(sec) chThdSleep(S2ST(sec))
-
-/**
- * Delays the invoking thread for the specified number of milliseconds.
- *
- * @param[in] msec the time in milliseconds
- * @note The specified time is rounded up to a value allowed by the real
- *       system clock.
- * @note The maximum specified value is implementation dependent.
- */
-#define chThdSleepMilliseconds(msec) chThdSleep(MS2ST(msec))
-
-/**
- * Delays the invoking thread for the specified number of microseconds.
- *
- * @param[in] usec the time in microseconds
- * @note The specified time is rounded up to a value allowed by the real
- *       system clock.
- * @note The maximum specified value is implementation dependent.
- */
-#define chThdSleepMicroseconds(usec) chThdSleep(US2ST(usec))
-
-#endif  /* _THREADS_H_ */
-
-/** @} */