diff options
Diffstat (limited to 'src/objective-c/GRPCClient/private/GRPCCompletionQueue.m')
| -rw-r--r-- | src/objective-c/GRPCClient/private/GRPCCompletionQueue.m | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m b/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m index 250bbf03a6..be214d4d36 100644 --- a/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m +++ b/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m @@ -41,7 +41,12 @@ const int64_t kGRPCCompletionQueueDefaultTimeoutSecs = 60; @implementation GRPCCompletionQueue + (instancetype)completionQueue { - return [[self alloc] init]; + static GRPCCompletionQueue *singleton = nil; + static dispatch_once_t onceToken; + dispatch_once(&onceToken, ^{ + singleton = [[self alloc] init]; + }); + return singleton; } - (instancetype)init { |