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Diffstat (limited to 'util/log.cpp')
| -rw-r--r-- | util/log.cpp | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/util/log.cpp b/util/log.cpp deleted file mode 100644 index 0dc75eddf6e..00000000000 --- a/util/log.cpp +++ /dev/null @@ -1,173 +0,0 @@ -/** @file log.cpp - */ - -/* Copyright 2009 10gen Inc. - * - * 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. - */ - -#include "pch.h" -#include "assert_util.h" -#include "assert.h" -#include <cmath> -#include "time_support.h" -using namespace std; - -#ifdef _WIN32 -# include <io.h> -# include <fcntl.h> -#else -# include <cxxabi.h> -# include <sys/file.h> -#endif - -#ifdef _WIN32 -# define dup2 _dup2 // Microsoft headers use ISO C names -# define fileno _fileno -#endif - -namespace mongo { - - Nullstream nullstream; - vector<Tee*>* Logstream::globalTees = 0; - - thread_specific_ptr<Logstream> Logstream::tsp; - - class LoggingManager { - public: - LoggingManager() - : _enabled(0) , _file(0) { - } - - void start( const string& lp , bool append ) { - uassert( 10268 , "LoggingManager already started" , ! _enabled ); - _append = append; - - bool exists = boost::filesystem::exists(lp); - - // test path - FILE * test = fopen( lp.c_str() , _append ? "a" : "w" ); - if ( ! test ) { - if (boost::filesystem::is_directory(lp)) { - cout << "logpath [" << lp << "] should be a file name not a directory" << endl; - } - else { - cout << "can't open [" << lp << "] for log file: " << errnoWithDescription() << endl; - } - dbexit( EXIT_BADOPTIONS ); - assert( 0 ); - } - - if (append && exists){ - // two blank lines before and after - const string msg = "\n\n***** SERVER RESTARTED *****\n\n\n"; - massert(14036, errnoWithPrefix("couldn't write to log file"), - fwrite(msg.data(), 1, msg.size(), test) == msg.size()); - } - - fclose( test ); - - _path = lp; - _enabled = 1; - rotate(); - } - - void rotate() { - if ( ! _enabled ) { - cout << "LoggingManager not enabled" << endl; - return; - } - - if ( _file ) { - -#ifdef POSIX_FADV_DONTNEED - posix_fadvise(fileno(_file), 0, 0, POSIX_FADV_DONTNEED); -#endif - - // Rename the (open) existing log file to a timestamped name - stringstream ss; - ss << _path << "." << terseCurrentTime( false ); - string s = ss.str(); - rename( _path.c_str() , s.c_str() ); - } - - FILE* tmp = 0; // The new file using the original logpath name - -#if _WIN32 - // We rename an open log file (above, on next rotation) and the trick to getting Windows to do that is - // to open the file with FILE_SHARE_DELETE. So, we can't use the freopen() call that non-Windows - // versions use because it would open the file without the FILE_SHARE_DELETE flag we need. - // - HANDLE newFileHandle = CreateFileA( - _path.c_str(), - GENERIC_WRITE, - FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, - NULL, - OPEN_ALWAYS, - FILE_ATTRIBUTE_NORMAL, - NULL - ); - if ( INVALID_HANDLE_VALUE != newFileHandle ) { - int newFileDescriptor = _open_osfhandle( reinterpret_cast<intptr_t>(newFileHandle), _O_APPEND ); - tmp = _fdopen( newFileDescriptor, _append ? "a" : "w" ); - } -#else - tmp = freopen(_path.c_str(), _append ? "a" : "w", stdout); -#endif - if ( !tmp ) { - cerr << "can't open: " << _path.c_str() << " for log file" << endl; - dbexit( EXIT_BADOPTIONS ); - assert( 0 ); - } - - // redirect stdout and stderr to log file - dup2( fileno( tmp ), 1 ); // stdout - dup2( fileno( tmp ), 2 ); // stderr - - Logstream::setLogFile(tmp); // after this point no thread will be using old file - -#if _WIN32 - if ( _file ) - fclose( _file ); // In Windows, we still have the old file open, close it now -#endif - -#if 0 // enable to test redirection - cout << "written to cout" << endl; - cerr << "written to cerr" << endl; - log() << "written to log()" << endl; -#endif - - _file = tmp; // Save new file for next rotation - } - - private: - bool _enabled; - string _path; - bool _append; - FILE * _file; - - } loggingManager; - - void initLogging( const string& lp , bool append ) { - cout << "all output going to: " << lp << endl; - loggingManager.start( lp , append ); - } - - void rotateLogs( int signal ) { - loggingManager.rotate(); - } - - // done *before* static initialization - FILE* Logstream::logfile = stdout; - -} |
