FILE *Cronolog::getOutputFile() {
if (m_template.empty()) return m_file;
time_t time_now = time(NULL) + m_timeOffset;
/* If the current period has not finished and there is a log file, use it */
if ((time_now < m_nextPeriod) && (m_file)) return m_file;
/* We need to open a new file under a mutex. */
{
Lock lock(m_mutex);
if ((time_now >= m_nextPeriod)) {
/* the current period has finished */
/* We cannot close m_file because there may be other threads still
* writing to it. We save m_file in m_prevFile and leave it open for
* an entire period. We simply assume that by the end of the delay
* no threads should be still referencing m_prevFile and we can safely
* close it.
*/
if (m_prevFile) fclose(m_prevFile);
m_prevFile = m_file;
m_file = NULL;
}
/* If there is no log file open then open a new one. */
if (m_file == NULL) {
const char *linkname = m_linkName.empty() ? NULL : m_linkName.c_str();
m_file = new_log_file(m_template.c_str(), linkname, S_IFLNK,
m_prevLinkName, m_periodicity, m_periodMultiple,
m_periodDelay, m_fileName, sizeof(m_fileName),
time_now, &m_nextPeriod);
}
}
return m_file;
}
void Log::Clear() {
lines_.clear();
utils::System("rm -f " + directory_ + "/*.log*");
if(file_) {
file_->close();
delete file_;
file_ = 0;
}
new_log_file(interval(std::time(0)));
}
void Log::Flush() {
if(lines_.size() > 0) {
*file_ << lines_[0];
}
for(unsigned int i = 1; i < lines_.size(); ++i) {
*file_ << '\n' << lines_[i];
}
*file_ << std::endl;
lines_.clear();
std::time_t current = interval(std::time(0));
if(interval_ != current) {
new_log_file(current);
}
}
FILE *Cronolog::getOutputFile() {
if (m_template.empty()) return m_file;
time_t time_now = time(NULL) + m_timeOffset;
/* If the current period has finished and there is a log file
* open, close the log file
*/
if ((time_now >= m_nextPeriod) && (m_file)) {
fclose(m_file);
m_file = NULL;
}
/* If there is no log file open then open a new one. */
if (m_file == NULL) {
m_file = new_log_file(m_template.c_str(), m_linkName.c_str(), S_IFLNK,
m_prevLinkName, m_periodicity, m_periodMultiple,
m_periodDelay, m_fileName, sizeof(m_fileName),
time_now, &m_nextPeriod);
}
return m_file;
}
Log::Log(std::string directory) : directory_(directory), file_(0) {
utils::Mkdir(directory, 0775);
new_log_file(interval(std::time(0)));
}