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//
// SDLGlobals.h
// SmartDeviceLink-iOS
//
// Created by Joel Fischer on 8/5/15.
// Copyright (c) 2015 smartdevicelink. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "SDLProtocolConstants.h"
@class SDLProtocolHeader;
@class SDLVersion;
NS_ASSUME_NONNULL_BEGIN
#define SDL_SYSTEM_VERSION_LESS_THAN(version) ([[[UIDevice currentDevice] systemVersion] compare:version options:NSNumericSearch] == NSOrderedAscending)
#define SDL_SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(version) ([[[UIDevice currentDevice] systemVersion] compare:version options:NSNumericSearch] != NSOrderedAscending)
#define BLOCK_RETURN return
extern NSString *const SDLMaxProxyProtocolVersion;
extern NSString *const SDLMaxProxyRPCVersion;
extern NSUInteger const SDLDefaultMTUSize;
extern NSUInteger const SDLV1MTUSize;
extern NSUInteger const SDLV3MTUSize;
extern void *const SDLProcessingQueueName;
extern void *const SDLConcurrentQueueName;
@interface SDLGlobals : NSObject
@property (copy, nonatomic, readonly) SDLVersion *protocolVersion;
@property (strong, nonatomic) SDLVersion *rpcVersion;
@property (copy, nonatomic) SDLVersion *maxHeadUnitProtocolVersion;
@property (copy, nonatomic) dispatch_queue_t sdlProcessingQueue;
@property (copy, nonatomic) dispatch_queue_t sdlConcurrentQueue;
+ (instancetype)sharedGlobals;
- (void)setDynamicMTUSize:(NSUInteger)maxMTUSize forServiceType:(SDLServiceType)serviceType;
- (NSUInteger)mtuSizeForServiceType:(SDLServiceType)serviceType;
/// Calls a block on an SDL sub-queue of the internal serial SDLProcessingQueue. If the call to this method is already on that queue, the block will be run, if it is not, a `dispatch_sync` will occur to that queue first.
/// @param queue The queue to run on. The passed queue should be a sub-queue of the SDLProcessingQueue. If it is not and the call to this method occurs on the passed queue, a deadlock will occur because the check will not pass correctly.
/// @param block The block to run on the serial sub-queue.
+ (void)runSyncOnSerialSubQueue:(dispatch_queue_t)queue block:(void (^)(void))block;
@end
NS_ASSUME_NONNULL_END
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