| // 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 |