GenerationalFileAppender.cpp
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00001 /*
00002  * GenerationalFileAppender.cpp
00003  *
00004  * See the COPYING file for the terms of usage and distribution.
00005  */
00006 
00007 #include "PortabilityImpl.hh"
00008 #ifdef LOG4CPP_HAVE_IO_H
00009 #    include <io.h>
00010 #endif
00011 #ifdef LOG4CPP_HAVE_UNISTD_H
00012 #    include <unistd.h>
00013 #endif
00014 
00015 #include <sys/types.h>
00016 #include <sys/stat.h>
00017 #include <fcntl.h>
00018 #include <log4cpp/GenerationalFileAppender.hh>
00019 #include <log4cpp/Category.hh>
00020 #include <log4cpp/FactoryParams.hh>
00021 #include <memory>
00022 #include <stdio.h>
00023 
00024 #ifdef LOG4CPP_HAVE_SSTREAM
00025 #include <sstream>
00026 #endif
00027 
00028 namespace log4cpp {
00029 
00030     GenerationalFileAppender::GenerationalFileAppender(const std::string& name,
00031                                              const std::string& fileName,
00032                                              bool append,
00033                                              mode_t mode) :
00034         FileAppender(name, fileName+".0", append, mode),
00035                 _originalFileName(fileName),
00036                 _generation(0) {
00037     }
00038 
00039     void GenerationalFileAppender::advanceGeneration() {
00040                 ++_generation;
00041                 std::ostringstream str;
00042                 str << _originalFileName << "." << _generation << std::ends;
00043         int new_fd = ::open(str.str().c_str(), _flags, _mode);
00044                 if (-1 != new_fd)
00045                 {
00046                         // avoid race-conditions as much as possible (w/o locks)
00047                         int old_fd = _fd;
00048                         _fd = new_fd;
00049                         ::close(old_fd);
00050                 }
00052     }
00053 
00054    std::auto_ptr<Appender> create_generation_file_appender(const FactoryParams& params)
00055    {
00056       std::string name, filename;
00057       bool append = true;
00058       mode_t mode = 664;
00059       params.get_for("rool file appender").required("name", name)("filename", filename)
00060                                           .optional("append", append)("mode", mode);
00061 
00062       return std::auto_ptr<Appender>(new GenerationalFileAppender(name, filename, append, mode));
00063    }
00064 }


log4cpp
Author(s): Stephen Roderick, Bastiaan Bakker, Cedric Le Goater, Steve Ostlind, Marcel Harkema, Walter Stroebel, Glenn Scott and Tony Cheung.
autogenerated on Wed Sep 16 2015 10:27:14