commit c827fbc1d044f31a1f925e52e07c843f88094a74
author Muxi Yan <mxyan@google.com> Thu Nov 01 13:06:31 2018 -0700
committer Muxi Yan <mxyan@google.com> Thu Nov 01 13:11:31 2018 -0700
tree 4e03a8ec91246880117cc89bb5c2243a2f2c4c98
parent 395fc1226f1225b267f912f4a860ad52ef6f4e0a

Log failures when unable to create call or channel

src/objective-c/GRPCClient/private/GRPCWrappedCall.m

diff --git a/src/objective-c/GRPCClient/private/GRPCWrappedCall.m b/src/objective-c/GRPCClient/private/GRPCWrappedCall.m
index 100d4cf..577002e 100644
--- a/src/objective-c/GRPCClient/private/GRPCWrappedCall.m
+++ b/src/objective-c/GRPCClient/private/GRPCWrappedCall.m
@@ -257,8 +257,13 @@
     // queue. Currently we use a singleton queue.
     _queue = [GRPCCompletionQueue completionQueue];
     _channel = [GRPCChannel channelWithHost:host callOptions:callOptions];
+    if (_channel == nil) {
+      NSLog(@"Failed to get a channel for the host.");
+      return nil;
+    }
     _call = [_channel unmanagedCallWithPath:path completionQueue:_queue callOptions:callOptions];
     if (_call == NULL) {
+      NSLog(@"Failed to create a call.");
       return nil;
     }
   }