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-rw-r--r--src/chmboxes.c244
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diff --git a/src/chmboxes.c b/src/chmboxes.c
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--- a/src/chmboxes.c
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@@ -1,244 +0,0 @@
-/*
- 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 chmboxes.c
- * @brief Mailboxes code.
- * @addtogroup Mailboxes
- * @{
- */
-
-#include <ch.h>
-
-#if CH_USE_MAILBOXES
-/**
- * @brief Initializes a Mailbox object.
- *
- * @param[out] mbp the pointer to the Mailbox structure to be initialized
- * @param[in] buf the circular messages buffer
- * @param[in] n the buffer size as number of @p msg_t
- */
-void chMBInit(Mailbox *mbp, msg_t *buf, cnt_t n) {
-
- chDbgCheck((mbp != NULL) && (buf != NULL) && (n > 0), "chMBInit");
-
- mbp->mb_buffer = mbp->mb_wrptr = mbp->mb_rdptr = buf;
- mbp->mb_top = &buf[n];
- chSemInit(&mbp->mb_emptysem, n);
- chSemInit(&mbp->mb_fullsem, 0);
-}
-
-/**
- * @brief Resets a Mailbox object.
- * @details All the waiting threads are resumed with status @p RDY_RESET and
- * the queued messages are lost.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- */
-void chMBReset(Mailbox *mbp) {
-
- chDbgCheck(mbp != NULL, "chMBReset");
-
- chSysLock();
- mbp->mb_wrptr = mbp->mb_rdptr = mbp->mb_buffer;
- chSemResetI(&mbp->mb_emptysem, mbp->mb_top - mbp->mb_buffer);
- chSemResetI(&mbp->mb_fullsem, 0);
- chSchRescheduleS();
- chSysUnlock();
-}
-
-/**
- * @brief Posts a message into a mailbox.
- * @details The invoking thread waits until a empty slot in the mailbox becomes
- * available or the specified time runs out.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- * @param[in] msg the message to be posted on the mailbox
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status.
- * @retval RDY_OK if the message was correctly posted.
- * @retval RDY_RESET if the mailbox was reset while waiting.
- * @retval RDY_TIMEOUT if the operation timed out.
- */
-msg_t chMBPost(Mailbox *mbp, msg_t msg, systime_t time) {
- msg_t rdymsg;
-
- chSysLock();
- rdymsg = chMBPostS(mbp, msg, time);
- chSysUnlock();
- return rdymsg;
-}
-
-/**
- * @brief Posts a message into a mailbox.
- * @details The invoking thread waits until a empty slot in the mailbox becomes
- * available or the specified time runs out.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- * @param[in] msg the message to be posted on the mailbox
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status.
- * @retval RDY_OK if the message was correctly posted.
- * @retval RDY_RESET if the mailbox was reset while waiting.
- * @retval RDY_TIMEOUT if the operation timed out.
- */
-msg_t chMBPostS(Mailbox *mbp, msg_t msg, systime_t time) {
- msg_t rdymsg;
-
- chDbgCheck(mbp != NULL, "chMBPostS");
-
- rdymsg = chSemWaitTimeoutS(&mbp->mb_emptysem, time);
- if (rdymsg == RDY_OK) {
- *mbp->mb_wrptr++ = msg;
- if (mbp->mb_wrptr >= mbp->mb_top)
- mbp->mb_wrptr = mbp->mb_buffer;
- chSemSignalI(&mbp->mb_fullsem);
- chSchRescheduleS();
- }
- return rdymsg;
-}
-
-/**
- * @brief Posts an high priority message into a mailbox.
- * @details The invoking thread waits until a empty slot in the mailbox becomes
- * available or the specified time runs out.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- * @param[in] msg the message to be posted on the mailbox
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status.
- * @retval RDY_OK if the message was correctly posted.
- * @retval RDY_RESET if the mailbox was reset while waiting.
- * @retval RDY_TIMEOUT if the operation timed out.
- */
-msg_t chMBPostAhead(Mailbox *mbp, msg_t msg, systime_t time) {
- msg_t rdymsg;
-
- chSysLock();
- rdymsg = chMBPostAheadS(mbp, msg, time);
- chSysUnlock();
- return rdymsg;
-}
-
-/**
- * @brief Posts an high priority message into a mailbox.
- * @details The invoking thread waits until a empty slot in the mailbox becomes
- * available or the specified time runs out.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- * @param[in] msg the message to be posted on the mailbox
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status.
- * @retval RDY_OK if the message was correctly posted.
- * @retval RDY_RESET if the mailbox was reset while waiting.
- * @retval RDY_TIMEOUT if the operation timed out.
- */
-msg_t chMBPostAheadS(Mailbox *mbp, msg_t msg, systime_t time) {
- msg_t rdymsg;
-
- chDbgCheck(mbp != NULL, "chMBPostAheadS");
-
- rdymsg = chSemWaitTimeoutS(&mbp->mb_emptysem, time);
- if (rdymsg == RDY_OK) {
- if (--mbp->mb_rdptr < mbp->mb_buffer)
- mbp->mb_rdptr = mbp->mb_top - 1;
- *mbp->mb_rdptr = msg;
- chSemSignalI(&mbp->mb_fullsem);
- chSchRescheduleS();
- }
- return rdymsg;
-}
-
-/**
- * @brief Retrieves a message from a mailbox.
- * @details The invoking thread waits until a message is posted in the mailbox
- * or the specified time runs out.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- * @param[out] msgp pointer to a message variable for the received message
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status.
- * @retval RDY_OK if a message was correctly fetched.
- * @retval RDY_RESET if the mailbox was reset while waiting.
- * @retval RDY_TIMEOUT if the operation timed out.
- */
-msg_t chMBFetch(Mailbox *mbp, msg_t *msgp, systime_t time) {
- msg_t rdymsg;
-
- chSysLock();
- rdymsg = chMBFetchS(mbp, msgp, time);
- chSysUnlock();
- return rdymsg;
-}
-
-/**
- * @brief Retrieves a message from a mailbox.
- * @details The invoking thread waits until a message is posted in the mailbox
- * or the specified time runs out.
- *
- * @param[in] mbp the pointer to an initialized Mailbox object
- * @param[out] msgp pointer to a message variable for the received message
- * @param[in] time the number of ticks before the operation timeouts,
- * the following special values are allowed:
- * - @a TIME_IMMEDIATE immediate timeout.
- * - @a TIME_INFINITE no timeout.
- * .
- * @return The operation status.
- * @retval RDY_OK if a message was correctly fetched.
- * @retval RDY_RESET if the mailbox was reset while waiting.
- * @retval RDY_TIMEOUT if the operation timed out.
- */
-msg_t chMBFetchS(Mailbox *mbp, msg_t *msgp, systime_t time) {
- msg_t rdymsg;
-
- chDbgCheck((mbp != NULL) && (msgp != NULL), "chMBFetchS");
-
- rdymsg = chSemWaitTimeoutS(&mbp->mb_fullsem, time);
- if (rdymsg == RDY_OK) {
- *msgp = *mbp->mb_rdptr++;
- if (mbp->mb_rdptr >= mbp->mb_top)
- mbp->mb_rdptr = mbp->mb_buffer;
- chSemSignalI(&mbp->mb_emptysem);
- chSchRescheduleS();
- }
- return rdymsg;
-}
-#endif /* CH_USE_MAILBOXES */
-
-/** @} */
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