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// Copyright (c) 2012 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 SQL_ERROR_DELEGATE_UTIL_H_
#define SQL_ERROR_DELEGATE_UTIL_H_
#include "base/metrics/histogram.h"
#include "sql/connection.h"
#include "sql/sql_export.h"
namespace sql {
// Returns true if it is highly unlikely that the database can recover from
// |error|.
SQL_EXPORT bool IsErrorCatastrophic(int error);
// Log error in console in debug mode and generate a UMA histogram in release
// mode for |error| for |UniqueT::name()|.
// This function is templated because histograms need to be singletons. That is
// why they are always static at the function scope. The template parameter
// makes the compiler create unique functions that don't share the same static
// variable.
template <class UniqueT>
void LogAndRecordErrorInHistogram(int error,
sql::Connection* connection) {
LOG(ERROR) << "sqlite error " << error
<< ", errno " << connection->GetLastErrno()
<< ": " << connection->GetErrorMessage();
// Trim off the extended error codes.
error &= 0xff;
// The histogram values from sqlite result codes currently go from 1 to 26
// but 50 gives them room to grow.
UMA_HISTOGRAM_ENUMERATION(UniqueT::name(), error, 50);
}
} // namespace sql
#endif // SQL_ERROR_DELEGATE_UTIL_H_
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