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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsIdleServiceX.h"
#include "nsObjCExceptions.h"
#include "nsIServiceManager.h"
#import <Foundation/Foundation.h>
NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceX, nsIdleService)
bool
nsIdleServiceX::PollIdleTime(uint32_t *aIdleTime)
{
NS_OBJC_BEGIN_TRY_ABORT_BLOCK_RETURN;
kern_return_t rval;
mach_port_t masterPort;
rval = IOMasterPort(kIOMasterPortDefault, &masterPort);
if (rval != KERN_SUCCESS)
return false;
io_iterator_t hidItr;
rval = IOServiceGetMatchingServices(masterPort,
IOServiceMatching("IOHIDSystem"),
&hidItr);
if (rval != KERN_SUCCESS)
return false;
NS_ASSERTION(hidItr, "Our iterator is null, but it ought not to be!");
io_registry_entry_t entry = IOIteratorNext(hidItr);
NS_ASSERTION(entry, "Our IO Registry Entry is null, but it shouldn't be!");
IOObjectRelease(hidItr);
NSMutableDictionary *hidProps;
rval = IORegistryEntryCreateCFProperties(entry,
(CFMutableDictionaryRef*)&hidProps,
kCFAllocatorDefault, 0);
if (rval != KERN_SUCCESS)
return false;
NS_ASSERTION(hidProps, "HIDProperties is null, but no error was returned.");
[hidProps autorelease];
id idleObj = [hidProps objectForKey:@"HIDIdleTime"];
NS_ASSERTION([idleObj isKindOfClass: [NSData class]] ||
[idleObj isKindOfClass: [NSNumber class]],
"What we got for the idle object is not what we expect!");
uint64_t time;
if ([idleObj isKindOfClass: [NSData class]])
[idleObj getBytes: &time];
else
time = [idleObj unsignedLongLongValue];
IOObjectRelease(entry);
// convert to ms from ns
time /= 1000000;
if (time > UINT32_MAX) // Overflow will occur
return false;
*aIdleTime = static_cast<uint32_t>(time);
return true;
NS_OBJC_END_TRY_ABORT_BLOCK_RETURN(false);
}
bool
nsIdleServiceX::UsePollMode()
{
return true;
}
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