diff options
Diffstat (limited to 'src/objective-c/GRPCClient/GRPCCall.m')
-rw-r--r-- | src/objective-c/GRPCClient/GRPCCall.m | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m index f79b7d0bc0..2d45818b6e 100644 --- a/src/objective-c/GRPCClient/GRPCCall.m +++ b/src/objective-c/GRPCClient/GRPCCall.m @@ -37,6 +37,8 @@ #include <grpc/support/time.h> #import <RxLibrary/GRXConcurrentWriteable.h> +#import "private/GRPCConnectivityMonitor.h" +#import "private/GRPCHost.h" #import "private/GRPCRequestHeaders.h" #import "private/GRPCWrappedCall.h" #import "private/NSData+GRPC.h" @@ -71,8 +73,11 @@ NSString * const kGRPCTrailersKey = @"io.grpc.TrailersKey"; @implementation GRPCCall { dispatch_queue_t _callQueue; + NSString *_host; + NSString *_path; GRPCWrappedCall *_wrappedCall; dispatch_once_t _callAlreadyInvoked; + GRPCConnectivityMonitor *_connectivityMonitor; // The C gRPC library has less guarantees on the ordering of events than we // do. Particularly, in the face of errors, there's no ordering guarantee at @@ -115,13 +120,11 @@ NSString * const kGRPCTrailersKey = @"io.grpc.TrailersKey"; format:@"The requests writer can't be already started."]; } if ((self = [super init])) { - _wrappedCall = [[GRPCWrappedCall alloc] initWithHost:host path:path]; - if (!_wrappedCall) { - return nil; - } + _host = [host copy]; + _path = [path copy]; // Serial queue to invoke the non-reentrant methods of the grpc_call object. - _callQueue = dispatch_queue_create("org.grpc.call", NULL); + _callQueue = dispatch_queue_create("io.grpc.call", NULL); _requestWriter = requestWriter; @@ -156,7 +159,7 @@ NSString * const kGRPCTrailersKey = @"io.grpc.TrailersKey"; - (void)cancel { [self finishWithError:[NSError errorWithDomain:kGRPCErrorDomain code:GRPCErrorCodeCancelled - userInfo:nil]]; + userInfo:@{NSLocalizedDescriptionKey: @"Canceled by app"}]]; [self cancelCall]; } @@ -354,8 +357,29 @@ NSString * const kGRPCTrailersKey = @"io.grpc.TrailersKey"; _retainSelf = self; _responseWriteable = [[GRXConcurrentWriteable alloc] initWithWriteable:writeable]; + + _wrappedCall = [[GRPCWrappedCall alloc] initWithHost:_host path:_path]; + NSAssert(_wrappedCall, @"Error allocating RPC objects. Low memory?"); + [self sendHeaders:_requestHeaders]; [self invokeCall]; + // TODO(jcanizales): Extract this logic somewhere common. + NSString *host = [NSURL URLWithString:[@"https://" stringByAppendingString:_host]].host; + if (!host) { + // TODO(jcanizales): Check this on init. + [NSException raise:NSInvalidArgumentException format:@"host of %@ is nil", _host]; + } + __weak typeof(self) weakSelf = self; + _connectivityMonitor = [GRPCConnectivityMonitor monitorWithHost:host]; + [_connectivityMonitor handleLossWithHandler:^{ + typeof(self) strongSelf = weakSelf; + if (strongSelf) { + [strongSelf finishWithError:[NSError errorWithDomain:kGRPCErrorDomain + code:GRPCErrorCodeUnavailable + userInfo:@{NSLocalizedDescriptionKey: @"Connectivity lost."}]]; + [[GRPCHost hostWithAddress:strongSelf->_host] disconnect]; + } + }]; } - (void)setState:(GRXWriterState)newState { @@ -385,4 +409,5 @@ NSString * const kGRPCTrailersKey = @"io.grpc.TrailersKey"; return; } } + @end |