You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
lokinet/llarp/util/logging/file_logger.cpp

104 lines
2.4 KiB
C++

#include <util/logging/file_logger.hpp>
#include <util/logging/logger_internal.hpp>
#include <utility>
namespace llarp
{
void
FileLogStream::Flush(Lines_t *lines, FILE *const f)
{
bool wrote_stuff = false;
do
{
auto maybe_line = lines->tryPopFront();
if(not maybe_line.has_value())
break;
const auto &line = maybe_line.value();
if(fprintf(f, "%s\n", line.c_str()) >= 0)
wrote_stuff = true;
} while(true);
if(wrote_stuff)
fflush(f);
}
// namespace
FileLogStream::FileLogStream(std::shared_ptr< thread::ThreadPool > disk,
FILE *f, llarp_time_t flushInterval,
bool closeFile)
: m_Lines(1024 * 8)
, m_Disk(std::move(disk))
, m_File(f)
, m_FlushInterval(flushInterval)
, m_Close(closeFile)
{
m_Lines.enable();
}
FileLogStream::~FileLogStream()
{
m_Lines.disable();
do
{
auto line = m_Lines.tryPopFront();
if(not line.has_value())
break;
} while(true);
fflush(m_File);
if(m_Close)
fclose(m_File);
}
bool
FileLogStream::ShouldFlush(llarp_time_t now) const
{
if(m_Lines.full())
return true;
if(m_LastFlush >= now)
return false;
const auto dlt = now - m_LastFlush;
return dlt >= m_FlushInterval;
}
void
FileLogStream::PreLog(std::stringstream &ss, LogLevel lvl, const char *fname,
int lineno, const std::string &nodename) const
{
ss << "[" << LogLevelToString(lvl) << "] ";
ss << "[" << nodename << "]"
<< "(" << thread_id_string() << ") " << log_timestamp() << " " << fname
<< ":" << lineno << "\t";
}
void
FileLogStream::Print(LogLevel, const char *, const std::string &msg)
{
m_Lines.pushBack(msg);
}
void
FileLogStream::AppendLog(LogLevel lvl, const char *fname, int lineno,
const std::string &nodename, const std::string msg)
{
ILogStream::AppendLog(lvl, fname, lineno, nodename, msg);
Tick(llarp::time_now_ms());
}
void
FileLogStream::Tick(llarp_time_t now)
{
if(ShouldFlush(now))
FlushLinesToDisk(now);
}
void
FileLogStream::FlushLinesToDisk(llarp_time_t now)
{
FILE *const f = m_File;
auto lines = &m_Lines;
m_Disk->addJob([f, lines]() { Flush(lines, f); });
m_LastFlush = now;
}
} // namespace llarp