71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2017 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 GNU
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* 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
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "powermanagement.h"
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#include "support/globalstatic.h"
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#include "mpd-interface/mpdstatus.h"
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#include <Carbon/Carbon.h>
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#include <IOKit/pwr_mgt/IOPMLib.h>
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#include <IOKit/IOMessage.h>
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GLOBAL_STATIC(PowerManagement, instance)
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static void powerEventCallback(void *rootPort, io_service_t, natural_t msg, void *arg)
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{
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switch (msg) {
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case kIOMessageSystemWillSleep:
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IOAllowPowerChange(*(io_connect_t *) rootPort, (long)arg);
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break;
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case kIOMessageSystemHasPoweredOn:
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PowerManagement::self()->emitResuming();
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break;
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case kIOMessageCanSystemSleep:
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if (PowerManagement::self()->inhibitSuspend() && MPDState_Playing==MPDStatus::self()->state()) {
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IOCancelPowerChange(*(io_connect_t *) rootPort, (long)arg);
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} else {
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IOAllowPowerChange(*(io_connect_t *) rootPort, (long)arg);
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}
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break;
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default:
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break;
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}
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}
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PowerManagement::PowerManagement()
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: inhibitSuspendWhilstPlaying(false)
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{
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static io_connect_t rootPort;
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IONotificationPortRef notificationPort;
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io_object_t notifier;
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rootPort = IORegisterForSystemPower(&rootPort, ¬ificationPort, powerEventCallback, ¬ifier);
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if (rootPort) {
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CFRunLoopAddSource(CFRunLoopGetCurrent(), IONotificationPortGetRunLoopSource(notificationPort), kCFRunLoopDefaultMode);
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}
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}
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void PowerManagement::emitResuming()
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{
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emit resuming();
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}
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