2014 snapchat source code
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//
// SCContextAwareSnapCreationThrottleRequest.m
// SCCamera
//
// Created by Cheng Jiang on 4/24/18.
//
#import "SCContextAwareSnapCreationThrottleRequest.h"
#import <SCFoundation/SCAssertWrapper.h>
#import <SCFoundation/SCContextAwareTaskManagementResourceProvider.h>
#import <SCFoundation/SCZeroDependencyExperiments.h>
#import <Tweaks/FBTweakInline.h>
BOOL SCCATMSnapCreationEnabled(void)
{
static dispatch_once_t capturingOnceToken;
static BOOL capturingImprovementEnabled;
dispatch_once(&capturingOnceToken, ^{
BOOL enabledWithAB = SCExperimentWithContextAwareTaskManagementCapturingImprovementEnabled();
NSInteger tweakOption = [FBTweakValue(@"CATM", @"Performance Improvement", @"Capturing", (id) @0,
(@{ @0 : @"Respect A/B",
@1 : @"YES",
@2 : @"NO" })) integerValue];
switch (tweakOption) {
case 0:
capturingImprovementEnabled = enabledWithAB;
break;
case 1:
capturingImprovementEnabled = YES;
break;
case 2:
capturingImprovementEnabled = NO;
break;
default:
SCCAssertFail(@"Illegal option");
}
});
return capturingImprovementEnabled;
}
@implementation SCContextAwareSnapCreationThrottleRequest {
NSString *_requestID;
}
- (instancetype)init
{
if (self = [super init]) {
_requestID = @"SCContextAwareSnapCreationThrottleRequest";
}
return self;
}
- (BOOL)shouldThrottle:(SCApplicationContextState)context
{
return SCCATMSnapCreationEnabled() && context != SCApplicationContextStateCamera;
}
- (NSString *)requestID
{
return _requestID;
}
- (BOOL)isEqual:(id<SCContextAwareThrottleRequest>)object
{
return [[object requestID] isEqualToString:_requestID];
}
@end