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Core/Log: Allow configuring a maximum file size for a log file. If the file size is about to be exceeded, the core will create a new file titled <oldname>_.log and start outputting there.

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This commit is contained in:
Machiavelli
2013-01-23 17:48:17 +01:00
parent 5e367c910a
commit 39c2d892f3
5 changed files with 43 additions and 5 deletions
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20
src/server/shared/Logging/AppenderFile.cpp
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@@ -18,11 +18,12 @@
#include "AppenderFile.h"
#include "Common.h"
AppenderFile::AppenderFile(uint8 id, std::string const& name, LogLevel level, const char* _filename, const char* _logDir, const char* _mode, AppenderFlags _flags)
AppenderFile::AppenderFile(uint8 id, std::string const& name, LogLevel level, const char* _filename, const char* _logDir, const char* _mode, AppenderFlags _flags, uint64 fileSize)
: Appender(id, name, APPENDER_FILE, level, _flags)
, filename(_filename)
, logDir(_logDir)
, mode(_mode)
, _fileSize(fileSize)
{
dynamicName = std::string::npos != filename.find("%s");
backup = _flags & APPENDER_FLAGS_MAKE_FILE_BACKUP;
@@ -46,12 +47,25 @@ void AppenderFile::_write(LogMessage const& message)
char namebuf[TRINITY_PATH_MAX];
snprintf(namebuf, TRINITY_PATH_MAX, filename.c_str(), message.param1.c_str());
logfile = OpenFile(namebuf, mode, backup);
_fileSize = ftell(logfile);
}
if (logfile)
{
if (!dynamicName && _fileSize + message.Size() > _maxFileSize)
{
/** @ We assume all log files have a .log extension.
If file "gol.log" is at its max capacity, this will spawn a new file, "gol_.log". If that one reaches capacity, it'll spawn "gol__.log", etc.
*/
filename.replace(filename.end() - 3, filename.end(), "_.log");
logfile = OpenFile(filename.c_str(), mode, backup);
_write(message);
return;
}
fprintf(logfile, "%s%s", message.prefix.c_str(), message.text.c_str());
fflush(logfile);
_fileSize += message.Size();
if (dynamicName)
{
@@ -71,5 +85,7 @@ FILE* AppenderFile::OpenFile(std::string const &filename, std::string const &mod
rename(filename.c_str(), newName.c_str()); // no error handling... if we couldn't make a backup, just ignore
}
return fopen((logDir + filename).c_str(), mode.c_str());
FILE* ret = fopen((logDir + filename).c_str(), mode.c_str());
_fileSize = ftell(ret);
return ret;
}