1 /* 2 * 3 * Copyright 2018 gRPC authors. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 #include <grpc/support/port_platform.h> 20 21 #include "src/core/lib/iomgr/port.h" 22 23 #include "src/core/lib/iomgr/internal_errqueue.h" 24 25 #ifdef GRPC_POSIX_SOCKET_TCP 26 kernel_supports_errqueue()27bool kernel_supports_errqueue() { 28 #ifdef LINUX_VERSION_CODE 29 #if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 0, 0) 30 return true; 31 #endif /* LINUX_VERSION_CODE <= KERNEL_VERSION(4, 0, 0) */ 32 #endif /* LINUX_VERSION_CODE */ 33 return false; 34 } 35 36 #endif /* GRPC_POSIX_SOCKET_TCP */ 37