80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @addtogroup Time
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* @{
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*/
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#include <ch.h>
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#ifdef CH_USE_SLEEP
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/**
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* Suspends the invoking thread for the specified time.
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* @param time the system ticks number
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*/
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void chThdSleep(t_time time) {
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VirtualTimer vt;
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chSysLock();
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chVTSetI(&vt, time, (t_vtfunc)chSchReadyI, currp);
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chSchGoSleepI(PRSLEEP);
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chSysUnlock();
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}
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#ifdef CH_USE_SYSTEMTIME
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/**
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* Returns the number of system ticks since the \p chSysInit() invocation.
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* @return the system ticks number
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* @note The counter can reach its maximum and return to zero.
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* @note This function is designed to work with the \p chThdSleepUntil().
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* @note The function is available only if the \p CH_USE_SYSTEMTIME
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* option is enabled in \p chconf.h.
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*/
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t_time chSysGetTime(void) {
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return stime;
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}
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/**
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* Suspends the invoking thread until the system time arrives to the specified
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* value.
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* @param time the system time
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* @note The function is available only if the \p CH_USE_SYSTEMTIME
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* option is enabled in \p chconf.h.
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*/
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void chThdSleepUntil(t_time time) {
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VirtualTimer t;
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chSysLock();
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chVTSetI(&t, (t_time)(time - stime), (t_vtfunc)chSchReadyI, currp);
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chSchGoSleepI(PRSLEEP);
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chSysUnlock();
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}
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#endif /* CH_USE_SYSTEMTIME */
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#endif /* CH_USE_SLEEP */
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/** @} */
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