Files
2022-10-26 12:25:11 +08:00

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C++

/*
* Copyright 2003,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LOG4CXX_HELPERS_FILEWATCHDOG_H
#define _LOG4CXX_HELPERS_FILEWATCHDOG_H
#include <log4cxx/helpers/tchar.h>
#include <log4cxx/helpers/thread.h>
#include <time.h>
namespace log4cxx
{
namespace helpers
{
/**
Check every now and then that a certain file has not changed. If it
has, then call the #doOnChange method.
*/
class LOG4CXX_EXPORT FileWatchdog : public Thread
{
public:
/**
The default delay between every file modification check, set to 60
seconds. */
static long DEFAULT_DELAY /*= 60000*/;
protected:
/**
The name of the file to observe for changes.
*/
String filename;
/**
The delay to observe between every check.
By default set DEFAULT_DELAY.*/
long delay;
time_t lastModif;
bool warnedAlready;
bool interrupted;
protected:
FileWatchdog(const String& filename);
virtual void doOnChange() = 0;
void checkAndConfigure();
public:
/**
Set the delay to observe between each check of the file changes.
*/
void setDelay(long delay)
{ this->delay = delay; }
void run();
void start();
};
} // namespace helpers
}; // namespace log4cxx
#endif // _LOG4CXX_HELPERS_FILEWATCHDOG_H