70f7a924cc
It is useful to know how long certain operations take. Instead of adding random time stamps at the log calls, this should better be done consistently for all lines. In a normal sync log, such a time stamp is added by the Synthesis logging code. For stdout logging, this patch adds it if the log level is >= DEBUG. That way it won't distract normal users but will be available automatically when producing a log for developers. Because a full time dump can be long and because the delta between events is more interesting, only relative time since the start of logging is printed.
137 lines
4.6 KiB
C++
137 lines
4.6 KiB
C++
/*
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* Copyright (C) 2009 Patrick Ohly <patrick.ohly@gmx.de>
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* Copyright (C) 2009 Intel Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) version 3.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#include <syncevo/LogStdout.h>
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#include <string.h>
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#include <errno.h>
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#include <syncevo/declarations.h>
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SE_BEGIN_CXX
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LoggerStdout::LoggerStdout(FILE *file) :
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m_file(file),
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m_closeFile(false)
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{}
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LoggerStdout::LoggerStdout(const std::string &filename) :
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m_file(fopen(filename.c_str(), "w")),
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m_closeFile(true)
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{
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if (!m_file) {
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throw std::string(filename + ": " + strerror(errno));
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}
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}
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LoggerStdout::~LoggerStdout()
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{
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if (m_closeFile) {
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fclose(m_file);
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}
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}
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void LoggerStdout::messagev(FILE *file,
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Level msglevel,
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Level filelevel,
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const char *prefix,
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const char *filename,
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int line,
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const char *function,
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const char *format,
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va_list args)
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{
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if (file &&
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msglevel <= filelevel) {
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if (msglevel != SHOW) {
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string reltime;
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string procname;
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if (!m_processName.empty()) {
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procname.reserve(m_processName.size() + 1);
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procname += " ";
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procname += m_processName;
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}
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if (filelevel >= DEBUG) {
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// add relative time stamp
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Timespec now = Timespec::monotonic();
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if (!m_startTime) {
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// first message, start counting time
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m_startTime = now;
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time_t nowt = time(NULL);
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struct tm tm_gm, tm_local;
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char buffer[2][80];
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gmtime_r(&nowt, &tm_gm);
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localtime_r(&nowt, &tm_local);
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reltime = " 00:00:00";
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strftime(buffer[0], sizeof(buffer[0]),
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"%a %Y-%m-%d %H:%M:%S",
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&tm_gm);
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strftime(buffer[1], sizeof(buffer[1]),
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"%H:%M %z %Z",
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&tm_local);
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fprintf(file, "[DEBUG%s%s] %s UTC = %s\n",
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procname.c_str(),
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reltime.c_str(),
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buffer[0],
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buffer[1]);
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} else {
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if (now >= m_startTime) {
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Timespec delta = now - m_startTime;
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reltime = StringPrintf(" %02ld:%02ld:%02ld",
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delta.tv_sec / (60 * 60),
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(delta.tv_sec % (60 * 60)) / 60,
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delta.tv_sec % 60);
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} else {
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reltime = " ??:??:??";
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}
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}
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}
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// in case of 'SHOW' level, don't print level and prefix information
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fprintf(file, "[%s%s%s] %s%s",
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levelToStr(msglevel),
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procname.c_str(),
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reltime.c_str(),
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prefix ? prefix : "",
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prefix ? ": " : "");
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}
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// TODO: print debugging information, perhaps only in log file
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vfprintf(file, format, args);
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// TODO: add newline only when needed, add prefix to all lines
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fprintf(file, "\n");
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fflush(file);
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}
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}
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void LoggerStdout::messagev(Level level,
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const char *prefix,
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const char *file,
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int line,
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const char *function,
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const char *format,
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va_list args)
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{
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messagev(m_file, level, getLevel(),
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prefix, file, line, function,
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format, args);
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}
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SE_END_CXX
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