src/starboard/shared/posix/file_seek.cc

// Copyright 2015 Google Inc. 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.

// Adapted from base/platform_file_posix.cc

#include "starboard/file.h"

#include <unistd.h>

#include "starboard/shared/posix/file_internal.h"

int64_t SbFileSeek(SbFile file, SbFileWhence whence, int64_t offset) {
  if (!file || file->descriptor < 0) {
    return -1;
  }

  return lseek(file->descriptor, static_cast<off_t>(offset),
               static_cast<int>(whence));
}