net/base/net_errors.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 #ifndef NET_BASE_NET_ERRORS_H__
   6 #define NET_BASE_NET_ERRORS_H__
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "base/platform_file.h"
  12 #include "net/base/net_export.h"
  13
  14 namespace net {
  15
  16 // Error domain of the net module's error codes.
  17 NET_EXPORT extern const char kErrorDomain[];
  18
  19 // Error values are negative.
  20 enum Error {
  21   // No error.
  22   OK = 0,
  23
  24 #define NET_ERROR(label, value) ERR_ ## label = value,
  25 #include "net/base/net_error_list.h"
  26 #undef NET_ERROR
  27
  28   // The value of the first certificate error code.
  29   ERR_CERT_BEGIN = ERR_CERT_COMMON_NAME_INVALID,
  30 };
  31
  32 // Returns a textual representation of the error code for logging purposes.
  33 NET_EXPORT const char* ErrorToString(int error);
  34
  35 // Returns true if |error| is a certificate error code.
  36 inline bool IsCertificateError(int error) {
  37   // Certificate errors are negative integers from net::ERR_CERT_BEGIN
  38   // (inclusive) to net::ERR_CERT_END (exclusive) in *decreasing* order.
  39   return error <= ERR_CERT_BEGIN && error > ERR_CERT_END;
  40 }
  41
  42 // Map system error code to Error.
  43 NET_EXPORT Error MapSystemError(int os_error);
  44
  45 // Returns a list of all the possible net error codes (not counting OK). This
  46 // is intended for use with UMA histograms that are reporting the result of
  47 // an action that is represented as a net error code.
  48 //
  49 // Note that the error codes are all positive (since histograms expect positive
  50 // sample values). Also note that a guard bucket is created after any valid
  51 // error code that is not followed immediately by a valid error code.
  52 NET_EXPORT std::vector<int> GetAllErrorCodesForUma();
  53
  54 // A convenient function to translate platform file error to net error code.
  55 NET_EXPORT Error PlatformFileErrorToNetError(
  56     base::PlatformFileError file_error);
  57
  58 }  // namespace net
  59
  60 #endif  // NET_BASE_NET_ERRORS_H__