48 lines
1.5 KiB
Objective-C
48 lines
1.5 KiB
Objective-C
//
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// AVCaptureDevice+ConfigurationLock.m
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// Snapchat
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//
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// Created by Derek Peirce on 4/19/17.
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// Copyright © 2017 Snapchat, Inc. All rights reserved.
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//
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#import "AVCaptureDevice+ConfigurationLock.h"
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#import "SCLogger+Camera.h"
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#import <SCFoundation/SCAssertWrapper.h>
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#import <SCFoundation/SCLog.h>
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#import <SCLogger/SCLogger.h>
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@implementation AVCaptureDevice (ConfigurationLock)
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- (BOOL)runTask:(NSString *)taskName withLockedConfiguration:(void (^)(void))task
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{
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return [self runTask:taskName withLockedConfiguration:task retry:0];
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}
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- (BOOL)runTask:(NSString *)taskName withLockedConfiguration:(void (^)(void))task retry:(NSUInteger)retryTimes
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{
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SCAssert(taskName, @"camera logger taskString should not be empty");
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SCAssert(retryTimes <= 2 && retryTimes >= 0, @"retry times should be equal to or below 2.");
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NSError *error = nil;
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BOOL deviceLockSuccess = NO;
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NSUInteger retryCounter = 0;
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while (retryCounter <= retryTimes && !deviceLockSuccess) {
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deviceLockSuccess = [self lockForConfiguration:&error];
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retryCounter++;
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}
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if (deviceLockSuccess) {
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task();
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[self unlockForConfiguration];
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SCLogCoreCameraInfo(@"AVCapture Device setting success, task:%@ tryCount:%zu", taskName,
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(unsigned long)retryCounter);
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} else {
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SCLogCoreCameraError(@"AVCapture Device Encountered error when %@ %@", taskName, error);
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[[SCLogger sharedInstance] logManagedCapturerSettingFailure:taskName error:error];
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}
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return deviceLockSuccess;
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}
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@end
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