59 lines
1.4 KiB
Objective-C
59 lines
1.4 KiB
Objective-C
/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "FClock.h"
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@implementation FSystemClock
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- (NSTimeInterval)currentTime {
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return [[NSDate date] timeIntervalSince1970];
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}
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+ (FSystemClock *)clock {
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static dispatch_once_t onceToken;
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static FSystemClock *clock;
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dispatch_once(&onceToken, ^{
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clock = [[FSystemClock alloc] init];
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});
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return clock;
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}
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@end
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@interface FOffsetClock ()
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@property (nonatomic, strong) id<FClock> clock;
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@property (nonatomic) NSTimeInterval offset;
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@end
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@implementation FOffsetClock
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- (NSTimeInterval)currentTime {
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return [self.clock currentTime] + self.offset;
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}
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- (id)initWithClock:(id<FClock>)clock offset:(NSTimeInterval)offset {
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self = [super init];
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if (self != nil) {
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self->_clock = clock;
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self->_offset = offset;
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}
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return self;
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}
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@end
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