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Limited Windows service log file size to 1MB #4677

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Oversized file is renamed to .1 to keep old log files in case needed,
but the old file will eventually be overwritten on 2nd recycle
This commit is contained in:
Nick Bolton 2015-05-19 14:04:02 +01:00
parent 2cce60f672
commit 46527ded56
1 changed files with 18 additions and 0 deletions
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18
src/lib/base/log_outputters.cpp
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@ -22,6 +22,10 @@
#include <fstream>
enum EFileLogOutputter {
kFileSizeLimit = 1024 // kb
};
//
// StopLogOutputter
//
@ -252,13 +256,27 @@ FileLogOutputter::setLogFilename(const char* logFile)
bool
FileLogOutputter::write(ELevel level, const char *message)
{
bool moveFile = false;
std::ofstream m_handle;
m_handle.open(m_fileName.c_str(), std::fstream::app);
if (m_handle.is_open() && m_handle.fail() != true) {
m_handle << message << std::endl;
// when file size exceeds limits, move to 'old log' filename.
int p = m_handle.tellp();
if (p > (kFileSizeLimit * 1024)) {
moveFile = true;
}
}
m_handle.close();
if (moveFile) {
String oldLogFilename = synergy::string::sprintf("%s.1", m_fileName.c_str());
remove(oldLogFilename.c_str());
rename(m_fileName.c_str(), oldLogFilename.c_str());
}
return true;
}