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/*
* PowerService.cpp
*
* Created on: Feb 1, 2021
* Author: emanoil
*
* hardwarecontrol Copyright (C) 2021 trinity desktop development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
//#include <kdebug.h>
#include <tqfile.h>
#include <tqtextstream.h>
#include "PowerService.h"
#define POWER_STATE_PATH "/sys/power/state"
#define POWER_DISK_PATH "/sys/power/disk"
PowerService::PowerService(TQT_DBusConnection &conn)
: DeviceServiceBase(conn)
{
// TODO Auto-generated constructor stub
}
PowerService::~PowerService()
{
// TODO Auto-generated destructor stub
}
bool PowerService::canSetPower(TQString state, TQT_DBusError& error) {
bool method = false;
if (canSetDeviceValue(POWER_STATE_PATH,error)) {
TQFile file1( POWER_STATE_PATH );
if ( file1.open( IO_ReadOnly ) ) {
TQTextStream stream( &file1 );
TQString line = stream.readLine(); // line of text excluding '\n'
if ( line.find(state, 0) != -1 )
method = true;
file1.close();
} else {
error = TQT_DBusError::stdInvalidArgs(TQString ("Can not write device: ").append(POWER_STATE_PATH));
}
}
// send reply
return method;
}
bool PowerService::setPower(TQString state, TQT_DBusError& error) {
bool written = false;
if (canSetPower(state,error)) {
if ( setDeviceValue(POWER_STATE_PATH, state, error) ) {
written = true;
} else {
error = TQT_DBusError::stdFailed(TQString ("Can not set state: " + state));
}
} else {
error = TQT_DBusError::stdFailed(TQString ("Can not write device: ").append(POWER_STATE_PATH));
}
return written;
}
bool PowerService::canSetHibernation(TQString state, TQT_DBusError& error) {
// check if path is writable
bool state_writable = canSetDeviceValue(POWER_STATE_PATH,error);
bool disk_writable = canSetDeviceValue(POWER_DISK_PATH,error);
// check if method is supported
bool method1 = false, method2 = false;
if (state_writable && disk_writable) {
TQFile file1( POWER_STATE_PATH );
if ( file1.open( IO_ReadOnly ) ) {
TQTextStream stream( &file1 );
TQString line = stream.readLine(); // line of text excluding '\n'
if ( line.find("disk", 0) != -1 )
method1 = true;
file1.close();
// kdDebug() << "Method1 for " << state << " is " << method1 << "\n";
} else {
error = TQT_DBusError::stdInvalidArgs(TQString ("Could not open ").append(POWER_STATE_PATH));
return false;
}
TQFile file2(POWER_DISK_PATH);
if ( file2.open( IO_ReadOnly ) ) {
TQTextStream stream( &file2 );
TQString line = stream.readLine(); // line of text excluding '\n'
if ( line.find(state, 0) != -1 )
method2 = true;
file2.close();
} else {
error = TQT_DBusError::stdInvalidArgs(TQString ("Could not open ").append(POWER_DISK_PATH));
return false;
}
}
// send reply
return state_writable && disk_writable && method1 && method2;
}
bool PowerService::setHibernation(TQString state, TQT_DBusError& error) {
// set hibernation state
bool written1 = false, written2 = false;
if (canSetHibernation(state,error)) {
TQFile file1(POWER_DISK_PATH);
if (!file1.open( IO_WriteOnly ) ) {
error = TQT_DBusError::stdFailed(TQString ("Could not open device ").append(POWER_DISK_PATH));
return false;
}
TQTextStream stream1( &file1 );
stream1 << state;
file1.close();
written1 = true;
TQFile file2(POWER_STATE_PATH);
if (!file2.open( IO_WriteOnly ) ) {
error = TQT_DBusError::stdFailed(TQString ("Could not open device ").append(POWER_STATE_PATH));
return false;
}
TQTextStream stream2( &file2 );
stream2 << "disk";
file2.close();
written2 = true;
} else {
error = TQT_DBusError::stdFailed(TQString ("Could not set state: " + state));
return false;
}
return written1 && written2;
}
/*!
* Implement virtual methods
*
*/
bool PowerService::CanStandby(bool& value, TQT_DBusError& error) {
value = canSetPower("standby", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::Standby(bool& value, TQT_DBusError& error) {
value = setPower("standby", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::CanFreeze(bool& value, TQT_DBusError& error) {
value = canSetPower("freeze", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::Freeze(bool& value, TQT_DBusError& error) {
value = setPower("freeze", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::CanSuspend(bool& value, TQT_DBusError& error) {
value = canSetPower("mem", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::Suspend(bool& value, TQT_DBusError& error) {
value = setPower("mem", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::CanHibernate(bool& value, TQT_DBusError& error) {
value = canSetHibernation("platform", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::Hibernate(bool& value, TQT_DBusError& error) {
value = setHibernation("platform", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::CanHybridSuspend(bool& value, TQT_DBusError& error) {
value = canSetHibernation("suspend", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::HybridSuspend(bool& value, TQT_DBusError& error) {
value = setHibernation("suspend", error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::CanSetHibernationMethod(bool& value, TQT_DBusError& error) {
value = canSetDeviceValue(POWER_DISK_PATH, error);
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
bool PowerService::SetHibernationMethod(const TQString& method, bool& value, TQT_DBusError& error) {
// set hibernation method
if (!method.isEmpty()) {
value = setDeviceValue(POWER_DISK_PATH, method, error);
}
else {
value = false;
error = TQT_DBusError::stdInvalidArgs(TQString ("Invalid argument for method: " + method));
}
if (error.isValid()) {
tqDebug(error.message().local8Bit());
return false;
}
return true;
}
void PowerService::handleMethodReply(const TQT_DBusMessage& reply) {
m_connection->send(reply);
}
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