|  | // Copyright 2014 The Bazel Authors. All rights reserved. | 
|  | // | 
|  | // 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 "src/main/cpp/util/port.h" | 
|  |  | 
|  | #ifdef __linux | 
|  | #include <sys/syscall.h> | 
|  | #include <unistd.h> | 
|  | #endif  // __linux | 
|  |  | 
|  | namespace blaze_util { | 
|  |  | 
|  | #ifdef __linux | 
|  |  | 
|  | int sys_ioprio_set(int which, int who, int ioprio) { | 
|  | return syscall(SYS_ioprio_set, which, who, ioprio); | 
|  | } | 
|  |  | 
|  | #else  // Not Linux. | 
|  |  | 
|  | int sys_ioprio_set(int which, int who, int ioprio) { | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | #endif  // __linux | 
|  |  | 
|  | }  // namespace blaze_util |