Added threadID in case someone wants that. The std::thread::id is loo…

…ong. cutting it down would be nice,. but that is a job for the client

g2log/src/g2logmessage.cpp

@@ -77,8 +77,12 @@ namespace g2 {
    LogMessage::LogMessage(const std::string &file, const int line,
            const std::string& function, const LEVELS& level)
    : _timestamp(g2::systemtime_now())
+   , _call_thread_id(std::this_thread::get_id())
    , _microseconds(microsecondsCounter())
-   , _file(splitFileName(file)), _line(line), _function(function), _level(level)
+   , _file(splitFileName(file))
+   , _line(line)
+   , _function(function)
+   , _level(level)
 {}
 
 
@@ -89,6 +93,7 @@ namespace g2 {
 
    LogMessage::LogMessage(const LogMessage& other) 
    : _timestamp(other._timestamp)
+   , _call_thread_id(other._call_thread_id)
    , _microseconds(other._microseconds)
    , _file(other._file)
    , _line(other._line)
@@ -102,6 +107,7 @@ namespace g2 {
 
    LogMessage::LogMessage(LogMessage&& other)
    : _timestamp(other._timestamp)
+   , _call_thread_id(other._call_thread_id)
    , _microseconds(other._microseconds)
    , _file(std::move(other._file))
    , _line(other._line)
@@ -110,6 +116,13 @@ namespace g2 {
    , _expression(std::move(other._expression))
    , _message(std::move(other._message)) {
    }    
+
+
+   std::string LogMessage::threadID() const {
+      std::ostringstream oss;
+      oss << _call_thread_id;
+      return oss.str();
+   }
 
    FatalMessage::FatalMessage(const LogMessage& details, int signal_id) 
    : LogMessage(details), _signal_id(signal_id) { }

g2log/src/g2logmessage.hpp

@@ -15,6 +15,7 @@
 #include <string>
 #include <sstream>
 #include <chrono>
+#include <thread>
 
 #include "g2loglevels.hpp"
 #include "g2time.hpp"
@@ -47,6 +48,8 @@ namespace g2 {
 
       std::string expression() const  { return _expression; }
       bool wasFatal() const { return internal::wasFatal(_level); }
+
+      std::string threadID() const;
 
       std::string toString() const;
       void setExpression(const std::string expression) { _expression = expression; } 
@@ -64,6 +67,7 @@ namespace g2 {
       // are not enough.
       //
       std::time_t _timestamp;
+      std::thread::id _call_thread_id;
       int64_t _microseconds;
       std::string _file;
       int _line;