Synchronized access to kHostCache

7 years ago · a8b07a37df
parent 7d32a2cb25
commit a8b07a37df
1 changed files with 4 additions and 1 deletions
--- a/src/objective-c/GRPCClient/private/GRPCHost.m
+++ b/src/objective-c/GRPCClient/private/GRPCHost.m
@ -125,7 +125,10 @@ static NSMutableDictionary *kHostCache;
  if (hostURL.host && !hostURL.port) {
    address = [hostURL.host stringByAppendingString:@":443"];
  }
-  GRPCHost *cachedHost = kHostCache[address];
+  __block GRPCHost *cachedHost;
+  @synchronized (kHostCache) {
+    cachedHost = kHostCache[address];
+  }
  return (cachedHost != nil);
 }