portapack-mayhem/firmware/common/thread_wait.cpp

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/*
* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "thread_wait.hpp"
int ThreadWait::sleep() {
chSysLock();
thread_to_wake = chThdSelf();
chSchGoSleepS(THD_STATE_SUSPENDED);
const auto result = chThdSelf()->p_u.rdymsg;
chSysUnlock();
return result;
}
bool ThreadWait::wake_from_interrupt(const int value) {
if (thread_to_wake) {
thread_to_wake->p_u.rdymsg = value;
chSchReadyI(thread_to_wake);
thread_to_wake = nullptr;
return true;
} else {
return false;
}
}