mirror of https://github.com/rusefi/rusefi-1.git
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/**
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* @file os_util.c
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* @brief Utility methods related to operating system usage
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*
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* @date Nov 15, 2012
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* @author Andrey Belomutskiy, (c) 2012-2019
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*
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* This file is part of rusEfi - see http://rusefi.com
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*
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* rusEfi is free software; you can redistribute it and/or modify it under the terms of
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* the GNU General Public License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* rusEfi is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "global.h"
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#if !EFI_UNIT_TEST
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#include "os_access.h"
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#include "os_util.h"
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void chVTSetAny(virtual_timer_t *vtp, systime_t time, vtfunc_t vtfunc, void *par) {
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bool wasLocked = lockAnyContext();
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/**
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* todo: this could be simplified once we migrate to ChibiOS 3.0
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* See http://www.chibios.org/dokuwiki/doku.php?id=chibios:howtos:porting_from_2_to_3
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*/
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if (chVTIsArmedI(vtp)) {
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chVTResetI(vtp);
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}
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chVTSetI(vtp, time, vtfunc, par);
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if (!wasLocked) {
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unlockAnyContext();
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}
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}
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/**
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* @return TRUE if already in locked context
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* TODO: refactor to new 'syssts_t sts = chSysGetStatusAndLockX();' pattern
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*/
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bool lockAnyContext(void) {
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int alreadyLocked = isLocked();
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if (alreadyLocked)
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return true;
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#if USE_PORT_LOCK
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port_lock();
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#else /* #if USE_PORT_LOCK */
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if (isIsrContext()) {
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chSysLockFromISR()
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;
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} else {
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chSysLock()
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;
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}
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#endif /* #if USE_PORT_LOCK */
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return false;
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}
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/**
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* TODO: refactor to new 'chSysRestoreStatusX(sts);' pattern
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*/
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void unlockAnyContext(void) {
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#if USE_PORT_LOCK
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port_unlock();
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#else /* #if USE_PORT_LOCK */
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if (isIsrContext()) {
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chSysUnlockFromISR()
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;
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} else {
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chSysUnlock()
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;
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}
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#endif /* #if USE_PORT_LOCK */
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}
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#endif /* EFI_UNIT_TEST */
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/**
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* See also getRemainingStack()
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*/
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int getMaxUsedStack(uint8_t *ptr, int size) {
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/**
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* maximum used stack size total stack buffer size minus position of first modified byte
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*/
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#if ! EFI_UNIT_TEST
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for (int i = 0; i < size; i++) {
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if (ptr[i] != CH_DBG_STACK_FILL_VALUE) {
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return size - i;
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}
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}
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#endif /* EFI_UNIT_TEST */
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return 0;
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}
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