Fix testInternalError that caused Jenkins hang for a long time
diff --git a/src/objective-c/tests/CronetUnitTests/CronetUnitTests.m b/src/objective-c/tests/CronetUnitTests/CronetUnitTests.m
index e97f3d2..aac307a 100644
--- a/src/objective-c/tests/CronetUnitTests/CronetUnitTests.m
+++ b/src/objective-c/tests/CronetUnitTests/CronetUnitTests.m
@@ -34,6 +34,7 @@
#import <XCTest/XCTest.h>
#import <netinet/in.h>
#import <sys/socket.h>
+#import <sys/fcntl.h>
#import <Cronet/Cronet.h>
#import <grpc/grpc.h>
@@ -187,6 +188,19 @@
grpc_metadata_array_init(&request_metadata_recv);
grpc_call_details_init(&call_details);
+ int sl = socket(AF_INET, SOCK_STREAM, 0);
+ GPR_ASSERT(sl >= 0);
+
+ // Make an TCP endpoint to accept the connection
+ struct sockaddr_in s_addr;
+ memset(&s_addr, 0, sizeof(s_addr));
+ s_addr.sin_family = AF_INET;
+ s_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+ s_addr.sin_port = htons(port);
+ GPR_ASSERT(-1 != fcntl(sl, F_SETFL, fcntl(sl, F_GETFL, 0) | O_NONBLOCK));
+ GPR_ASSERT(0 == bind(sl, (struct sockaddr *)&s_addr, sizeof(s_addr)));
+ GPR_ASSERT(0 == listen(sl, 5));
+
memset(ops, 0, sizeof(ops));
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
@@ -226,17 +240,10 @@
dispatch_async(
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
- int sl = socket(AF_INET, SOCK_STREAM, 0);
- GPR_ASSERT(sl >= 0);
-
- // Make and TCP endpoint to accept the connection
- struct sockaddr_in s_addr;
- memset(&s_addr, 0, sizeof(s_addr));
- s_addr.sin_family = AF_INET;
- s_addr.sin_addr.s_addr = htonl(INADDR_ANY);
- s_addr.sin_port = htons(port);
- GPR_ASSERT(0 == bind(sl, (struct sockaddr *)&s_addr, sizeof(s_addr)));
- GPR_ASSERT(0 == listen(sl, 5));
+ fd_set fs;
+ FD_ZERO(&fs);
+ FD_SET(sl, &fs);
+ select(sl + 1, &fs, NULL, NULL, NULL);
int s = accept(sl, NULL, NULL);
GPR_ASSERT(s >= 0);