1// Copyright (c) 2013 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 COMPONENTS_POLICY_CORE_COMMON_POLICY_LOAD_STATUS_H_ 6#define COMPONENTS_POLICY_CORE_COMMON_POLICY_LOAD_STATUS_H_ 7 8#include <bitset> 9 10#include "base/basictypes.h" 11#include "components/policy/policy_export.h" 12 13namespace base { 14class HistogramBase; 15} 16 17namespace policy { 18 19// UMA histogram enum for policy load status. Don't change existing constants, 20// append additional constants to the end if needed. 21enum PolicyLoadStatus { 22 // Policy load attempt started. This gets logged for each policy load attempt 23 // to get a baseline on the number of requests, and an arbitrary number of 24 // the below status codes may get added in addition. 25 POLICY_LOAD_STATUS_STARTED = 0, 26 // System failed to determine whether there's policy. 27 POLICY_LOAD_STATUS_QUERY_FAILED = 1, 28 // No policy present. 29 POLICY_LOAD_STATUS_NO_POLICY = 2, 30 // Data inaccessible, such as non-local policy file. 31 POLICY_LOAD_STATUS_INACCCESSIBLE = 3, 32 // Data missing, such as policy file not present. 33 POLICY_LOAD_STATUS_MISSING = 4, 34 // Trying with Wow64 redirection disabled. 35 POLICY_LOAD_STATUS_WOW64_REDIRECTION_DISABLED = 5, 36 // Data read error, for example file reading errors. 37 POLICY_LOAD_STATUS_READ_ERROR = 6, 38 // Data too large to process. 39 POLICY_LOAD_STATUS_TOO_BIG = 7, 40 // Parse error. 41 POLICY_LOAD_STATUS_PARSE_ERROR = 8, 42 43 // This must stay last. 44 POLICY_LOAD_STATUS_SIZE 45}; 46 47// A helper for generating policy load status UMA statistics that'll collect 48// histogram samples for a policy load operation and records histogram samples 49// for the status codes that were seen on destruction. 50class POLICY_EXPORT PolicyLoadStatusSample { 51 public: 52 PolicyLoadStatusSample(); 53 ~PolicyLoadStatusSample(); 54 55 // Adds a status code. 56 void Add(PolicyLoadStatus status); 57 58 private: 59 std::bitset<POLICY_LOAD_STATUS_SIZE> status_bits_; 60 base::HistogramBase* histogram_; 61 62 DISALLOW_COPY_AND_ASSIGN(PolicyLoadStatusSample); 63}; 64 65} // namespace policy 66 67#endif // COMPONENTS_POLICY_CORE_COMMON_POLICY_LOAD_STATUS_H_ 68