Merge branch 'channelz-subchannels' into channelz-server

1 files changed, 36 insertions, 0 deletions

diff --git a/src/core/lib/iomgr/internal_errqueue.cc b/src/core/lib/iomgr/internal_errqueue.cc
new file mode 100644
index 0000000000..99c22e9055
--- /dev/null
+++ b/src/core/lib/iomgr/internal_errqueue.cc
@@ -0,0 +1,36 @@
+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/lib/iomgr/port.h"
+
+#include "src/core/lib/iomgr/internal_errqueue.h"
+
+#ifdef GRPC_POSIX_SOCKET_TCP
+
+bool kernel_supports_errqueue() {
+#ifdef LINUX_VERSION_CODE
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 0, 0)
+  return true;
+#endif /* LINUX_VERSION_CODE <= KERNEL_VERSION(4, 0, 0) */
+#endif /* LINUX_VERSION_CODE */
+  return false;
+}
+
+#endif /* GRPC_POSIX_SOCKET_TCP */