diff options
Diffstat (limited to 'src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m')
| -rw-r--r-- | src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m | 79 |
1 files changed, 36 insertions, 43 deletions
diff --git a/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m b/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m index fec6391d39..40afca2d3d 100644 --- a/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m +++ b/src/objective-c/GRPCClient/private/GRPCConnectivityMonitor.m @@ -58,20 +58,19 @@ } */ -#define GRPC_XMACRO_ITEM(methodName, FlagName) \ - -(BOOL)methodName { \ - return !!(_flags & kSCNetworkReachabilityFlags##FlagName); \ - } +#define GRPC_XMACRO_ITEM(methodName, FlagName) \ +- (BOOL)methodName { \ + return !!(_flags & kSCNetworkReachabilityFlags ## FlagName); \ +} #include "GRPCReachabilityFlagNames.xmacro.h" #undef GRPC_XMACRO_ITEM - (BOOL)isHostReachable { - // Note: connectionOnDemand means it'll be reachable only if using the - // CFSocketStream API or APIs on top of it. - // connectionRequired means we can't tell until a connection is attempted - // (e.g. for VPN on demand). - return self.reachable && !self.interventionRequired && - !self.connectionOnDemand; + // Note: connectionOnDemand means it'll be reachable only if using the CFSocketStream API or APIs + // on top of it. + // connectionRequired means we can't tell until a connection is attempted (e.g. for VPN on + // demand). + return self.reachable && !self.interventionRequired && !self.connectionOnDemand; } - (NSString *)description { @@ -80,9 +79,9 @@ /* * For each flag, add its name to the array if it's ON. Example: - if (self.isCell) { - [activeOptions addObject:@"isCell"]; - } + if (self.isCell) { + [activeOptions addObject:@"isCell"]; + } */ #define GRPC_XMACRO_ITEM(methodName, FlagName) \ @@ -92,14 +91,12 @@ #include "GRPCReachabilityFlagNames.xmacro.h" #undef GRPC_XMACRO_ITEM - return activeOptions.count == 0 - ? @"(none)" - : [activeOptions componentsJoinedByString:@", "]; + return activeOptions.count == 0 ? @"(none)" : [activeOptions componentsJoinedByString:@", "]; } - (BOOL)isEqual:(id)object { return [object isKindOfClass:[GRPCReachabilityFlags class]] && - _flags == ((GRPCReachabilityFlags *)object)->_flags; + _flags == ((GRPCReachabilityFlags *)object)->_flags; } - (NSUInteger)hash { @@ -109,16 +106,15 @@ #pragma mark Connectivity Monitor -// Assumes the third argument is a block that accepts a GRPCReachabilityFlags -// object, and passes the received ones to it. +// Assumes the third argument is a block that accepts a GRPCReachabilityFlags object, and passes the +// received ones to it. static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target, SCNetworkReachabilityFlags flags, void *info) { -#pragma unused(target) - // This can be called many times with the same info. The info is retained by - // SCNetworkReachability while this function is being executed. - void (^handler)(GRPCReachabilityFlags *) = - (__bridge void (^)(GRPCReachabilityFlags *))info; + #pragma unused (target) + // This can be called many times with the same info. The info is retained by SCNetworkReachability + // while this function is being executed. + void (^handler)(GRPCReachabilityFlags *) = (__bridge void (^)(GRPCReachabilityFlags *))info; handler([[GRPCReachabilityFlags alloc] initWithFlags:flags]); } @@ -127,8 +123,7 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target, GRPCReachabilityFlags *_previousReachabilityFlags; } -- (nullable instancetype)initWithReachability: - (nullable SCNetworkReachabilityRef)reachability { +- (nullable instancetype)initWithReachability:(nullable SCNetworkReachabilityRef)reachability { if (!reachability) { return nil; } @@ -149,23 +144,23 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target, SCNetworkReachabilityRef reachability = SCNetworkReachabilityCreateWithName(NULL, hostName); - GRPCConnectivityMonitor *returnValue = - [[self alloc] initWithReachability:reachability]; + GRPCConnectivityMonitor *returnValue = [[self alloc] initWithReachability:reachability]; if (reachability) { CFRelease(reachability); } return returnValue; } -- (void)handleLossWithHandler:(void (^)())handler - wifiStatusChangeHandler:(nonnull void (^)())wifiStatusChangeHandler { +- (void)handleLossWithHandler:(nullable void (^)())lossHandler + wifiStatusChangeHandler:(nullable void (^)())wifiStatusChangeHandler { __weak typeof(self) weakSelf = self; [self startListeningWithHandler:^(GRPCReachabilityFlags *flags) { typeof(self) strongSelf = weakSelf; if (strongSelf) { - if (!flags.reachable) { - handler(); - } else if (strongSelf->_previousReachabilityFlags && + if (lossHandler && !flags.reachable) { + lossHandler(); + } else if (wifiStatusChangeHandler && + strongSelf->_previousReachabilityFlags && (flags.isWWAN ^ strongSelf->_previousReachabilityFlags.isWWAN)) { wifiStatusChangeHandler(); @@ -176,19 +171,17 @@ static void PassFlagsToContextInfoBlock(SCNetworkReachabilityRef target, } - (void)startListeningWithHandler:(void (^)(GRPCReachabilityFlags *))handler { - // Copy to ensure the handler block is in the heap (and so can't be - // deallocated when this method returns). + // Copy to ensure the handler block is in the heap (and so can't be deallocated when this method + // returns). void (^copiedHandler)(GRPCReachabilityFlags *) = [handler copy]; SCNetworkReachabilityContext context = { - .version = 0, - .info = (__bridge void *)copiedHandler, - .retain = CFRetain, - .release = CFRelease, + .version = 0, + .info = (__bridge void *)copiedHandler, + .retain = CFRetain, + .release = CFRelease, }; - // The following will retain context.info, and release it when the callback is - // set to NULL. - SCNetworkReachabilitySetCallback(_reachabilityRef, - PassFlagsToContextInfoBlock, &context); + // The following will retain context.info, and release it when the callback is set to NULL. + SCNetworkReachabilitySetCallback(_reachabilityRef, PassFlagsToContextInfoBlock, &context); SCNetworkReachabilitySetDispatchQueue(_reachabilityRef, _queue); } |