/usr/include/Poco/RotateStrategy.h is in libpoco-dev 1.3.6p1-5.1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | //
// RotateStrategy.h
//
// $Id: //poco/1.3/Foundation/include/Poco/RotateStrategy.h#3 $
//
// Library: Foundation
// Package: Logging
// Module: FileChannel
//
// Definition of the RotateStrategy class and subclasses.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#ifndef Foundation_RotateStrategy_INCLUDED
#define Foundation_RotateStrategy_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Timespan.h"
#include "Poco/Timestamp.h"
#include "Poco/Exception.h"
#include "Poco/LogFile.h"
#include "Poco/StringTokenizer.h"
#include "Poco/DateTimeParser.h"
#include "Poco/NumberParser.h"
namespace Poco {
class Foundation_API RotateStrategy
/// The RotateStrategy is used by LogFile to determine when
/// a file must be rotated.
{
public:
RotateStrategy();
virtual ~RotateStrategy();
virtual bool mustRotate(LogFile* pFile) = 0;
/// Returns true if the given log file must
/// be rotated, false otherwise.
private:
RotateStrategy(const RotateStrategy&);
RotateStrategy& operator = (const RotateStrategy&);
};
template <class DT>
class RotateAtTimeStrategy: public RotateStrategy
/// The file is rotated at specified [day,][hour]:minute
{
public:
RotateAtTimeStrategy(const std::string& rtime):
_day(-1),
_hour(-1),
_minute(0)
{
if (rtime.empty())
throw InvalidArgumentException("Rotation time must be specified.");
if ((rtime.find(',') != rtime.npos) && (rtime.find(':') == rtime.npos))
throw InvalidArgumentException("Invalid rotation time specified.");
StringTokenizer timestr(rtime, ",:", StringTokenizer::TOK_TRIM | StringTokenizer::TOK_IGNORE_EMPTY);
int index = 0;
switch (timestr.count())
{
case 3: // day,hh:mm
{
std::string::const_iterator it = timestr[index].begin();
_day = DateTimeParser::parseDayOfWeek(it, timestr[index].end());
++index;
}
case 2: // hh:mm
_hour = NumberParser::parse(timestr[index]);
++index;
case 1: // mm
_minute = NumberParser::parse(timestr[index]);
break;
default:
throw InvalidArgumentException("Invalid rotation time specified.");
}
getNextRollover();
}
~RotateAtTimeStrategy()
{
}
bool mustRotate(LogFile* pFile)
{
if (DT() >= _threshold)
{
getNextRollover();
return true;
}
return false;
}
private:
void getNextRollover()
{
Timespan tsp(0, 0, 1, 0, 1000); // 0,00:01:00.001
do
{
_threshold += tsp;
}
while (!(_threshold.minute() == _minute &&
(-1 == _hour || _threshold.hour() == _hour) &&
(-1 == _day || _threshold.dayOfWeek() == _day)));
// round to :00.0 seconds
_threshold.assign(_threshold.year(), _threshold.month(), _threshold.day(), _threshold.hour(), _threshold.minute());
}
DT _threshold;
int _day;
int _hour;
int _minute;
};
class Foundation_API RotateByIntervalStrategy: public RotateStrategy
/// The file is rotated when the log file
/// exceeds a given age.
///
/// For this to work reliably across all platforms and file systems
/// (there are severe issues on most platforms finding out the real
/// creation date of a file), the creation date of the file is
/// written into the log file as the first entry.
{
public:
RotateByIntervalStrategy(const Timespan& span);
~RotateByIntervalStrategy();
bool mustRotate(LogFile* pFile);
private:
Timespan _span;
Timestamp _lastRotate;
static const std::string ROTATE_TEXT;
};
class Foundation_API RotateBySizeStrategy: public RotateStrategy
/// The file is rotated when the log file
/// exceeds a given size.
{
public:
RotateBySizeStrategy(UInt64 size);
~RotateBySizeStrategy();
bool mustRotate(LogFile* pFile);
private:
UInt64 _size;
};
} // namespace Poco
#endif // Foundation_RotateStrategy_INCLUDED
|