net/base/file_stream_metrics.h

   1 // Copyright (c) 2012 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
  10 namespace net {
  11
  12 enum FileErrorSource {
  13   FILE_ERROR_SOURCE_OPEN = 0,
  14   FILE_ERROR_SOURCE_WRITE,
  15   FILE_ERROR_SOURCE_READ,
  16   FILE_ERROR_SOURCE_SEEK,
  17   FILE_ERROR_SOURCE_FLUSH,
  18   FILE_ERROR_SOURCE_SET_EOF,
  19   FILE_ERROR_SOURCE_GET_SIZE,
  20   FILE_ERROR_SOURCE_COUNT,
  21 };
  22
  23 // UMA error statistics gathering.
  24 // Put the error value into a bucket.
  25 int GetFileErrorUmaBucket(int error);
  26
  27 // The largest bucket number, plus 1.
  28 int MaxFileErrorUmaBucket();
  29
  30 // The highest error value we want to individually report.
  31 int MaxFileErrorUmaValue();
  32
  33 // |error| is a platform-specific error (Windows or Posix).
  34 // |source| indicates the operation that resulted in the error.
  35 // |record| is a flag indicating that we are interested in this error.
  36 void RecordFileError(int error, FileErrorSource source, bool record);
  37
  38 // Gets a description for the source of a file error.
  39 const char* GetFileErrorSourceName(FileErrorSource source);
  40
  41 }  // namespace net
  42
  43 #endif  // NET_BASE_FILE_STREAM_METRICS_H_