Added pattern formatter and updated related stuff

include/c11log/details/fast_oss.h

@@ -5,8 +5,10 @@
 
 #include <ostream>
 #include <iomanip>
+#include "fast_istostr.h"
 #include "stack_buf.h"
 
+
 namespace c11log
 {
 namespace details
@@ -15,7 +17,7 @@ namespace details
 class stack_devicebuf :public std::streambuf
 {
 public:
-    static const unsigned short stack_size = 192;
+    static const unsigned short stack_size = 256;
     using stackbuf_t = stack_buf<stack_size>;
 
     stack_devicebuf() = default;
@@ -103,6 +105,29 @@ public:
         _dev.clear();
     }
 
+    // The following were added because they add significant boost to perfromance
+    void putc(char c)
+    {
+        _dev.sputc(c);
+    }
+
+
+    // put int and pad with zeroes if smalled than min_width
+    void put_int(int n, int min_width)
+    {
+        std::string s;
+        details::fast_itostr(n, s, min_width);
+        _dev.sputn(s.data(), s.size());
+        //sprintf_s(buf, "%d", n);
+        //_dev.sputn(buf, width);
+    }
+
+    void put_str(const std::string& str)
+    {
+        _dev.sputn(str.data(), str.size());
+    }
+
+
 private:
     stack_devicebuf _dev;
 };

include/c11log/details/line_logger.h

@@ -45,6 +45,7 @@ public:
         {
             _log_msg.logger_name = _callback_logger->name();
             _log_msg.time = log_clock::now();
+            _log_msg.tm_time = details::os::localtime(log_clock::to_time_t(_log_msg.time));
             _log_msg.raw = _oss.str();
             _callback_logger->_log_msg(_log_msg);
         }

include/c11log/details/log_msg.h

@@ -14,6 +14,7 @@ struct log_msg
         logger_name(),
         level(l),
         time(),
+        tm_time(),
         raw(),
         formatted() {}
 
@@ -21,6 +22,7 @@ struct log_msg
         logger_name(other.logger_name),
         level(other.level),
         time(other.time),
+        tm_time(other.tm_time),
         raw(other.raw),
         formatted(other.formatted) {}
 
@@ -35,6 +37,7 @@ struct log_msg
         swap(l.logger_name, r.logger_name);
         swap(l.level, r.level);
         swap(l.time, r.time);
+        swap(l.tm_time, r.tm_time);
         swap(l.raw, r.raw);
         swap(l.formatted, r.formatted);
     }
@@ -56,9 +59,11 @@ struct log_msg
     std::string logger_name;
     level::level_enum level;
     log_clock::time_point time;
+    std::tm tm_time;
     std::string raw;
     std::string formatted;
 
+
 };
 }
 }