net/base/file_stream_metrics.h

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // File error statistics gathering.
   6
   7 #ifndef NET_BASE_FILE_STREAM_METRICS_H_
   8 #define NET_BASE_FILE_STREAM_METRICS_H_
   9 #pragma once
  10
  11 namespace net {
  12
  13 enum FileErrorSource {
  14   FILE_ERROR_SOURCE_OPEN = 0,
  15   FILE_ERROR_SOURCE_WRITE,
  16   FILE_ERROR_SOURCE_READ,
  17   FILE_ERROR_SOURCE_SEEK,
  18   FILE_ERROR_SOURCE_FLUSH,
  19   FILE_ERROR_SOURCE_SET_EOF,
  20   FILE_ERROR_SOURCE_GET_SIZE,
  21   FILE_ERROR_SOURCE_COUNT,
  22 };
  23
  24 // UMA error statistics gathering.
  25 // Put the error value into a bucket.
  26 int GetFileErrorUmaBucket(int error);
  27
  28 // The largest bucket number, plus 1.
  29 int MaxFileErrorUmaBucket();
  30
  31 // The highest error value we want to individually report.
  32 int MaxFileErrorUmaValue();
  33
  34 // |error| is a platform-specific error (Windows or Posix).
  35 // |source| indicates the operation that resulted in the error.
  36 // |record| is a flag indicating that we are interested in this error.
  37 void RecordFileError(int error, FileErrorSource source, bool record);
  38
  39 }  // namespace net
  40
  41 #endif  // NET_BASE_FILE_STREAM_METRICS_H_