// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_POLICY_CORE_COMMON_POLICY_LOAD_STATUS_H_
#define COMPONENTS_POLICY_CORE_COMMON_POLICY_LOAD_STATUS_H_
#include <bitset>
#include "base/basictypes.h"
#include "components/policy/policy_export.h"
namespace base {
class HistogramBase;
}
namespace policy {
// UMA histogram enum for policy load status. Don't change existing constants,
// append additional constants to the end if needed.
enum PolicyLoadStatus {
// Policy load attempt started. This gets logged for each policy load attempt
// to get a baseline on the number of requests, and an arbitrary number of
// the below status codes may get added in addition.
POLICY_LOAD_STATUS_STARTED,
// System failed to determine whether there's policy.
POLICY_LOAD_STATUS_QUERY_FAILED,
// No policy present.
POLICY_LOAD_STATUS_NO_POLICY,
// Data inaccessible, such as non-local policy file.
POLICY_LOAD_STATUS_INACCCESSIBLE,
// Data missing, such as policy file not present.
POLICY_LOAD_STATUS_MISSING,
// Trying with Wow64 redirection disabled.
POLICY_LOAD_STATUS_WOW64_REDIRECTION_DISABLED,
// Data read error, for example file reading errors.
POLICY_LOAD_STATUS_READ_ERROR,
// Data too large to process.
POLICY_LOAD_STATUS_TOO_BIG,
// Parse error.
POLICY_LOAD_STATUS_PARSE_ERROR,
// This must stay last.
POLICY_LOAD_STATUS_SIZE
};
// A helper for generating policy load status UMA statistics that'll collect
// histogram samples for a policy load operation and records histogram samples
// for the status codes that were seen on destruction.
class POLICY_EXPORT PolicyLoadStatusSample {
public:
PolicyLoadStatusSample();
~PolicyLoadStatusSample();
// Adds a status code.
void Add(PolicyLoadStatus status);
private:
std::bitset<POLICY_LOAD_STATUS_SIZE> status_bits_;
base::HistogramBase* histogram_;
DISALLOW_COPY_AND_ASSIGN(PolicyLoadStatusSample);
};
} // namespace policy
#endif // COMPONENTS_POLICY_CORE_COMMON_POLICY_LOAD_STATUS_H_