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utc offset support (%z) in pattern formatter

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This commit is contained in:
gabi 2014-10-19 17:44:57 +03:00
parent 32a8b51d05
commit e148b939fd
2 changed files with 107 additions and 46 deletions
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35
include/c11log/details/os.h
View File

@ -33,6 +33,25 @@ inline std::tm localtime()
return localtime(now_t); return localtime(now_t);
} }
inline std::tm gmtime(const std::time_t &time_tt)
{
#ifdef _WIN32
std::tm tm;
gmtime_s(&tm, &time_tt);
#else
std::tm tm;
lgmtime_r(&time_tt, &tm);
#endif
return tm;
}
inline std::tm gmtime()
{
std::time_t now_t = time(0);
return gmtime(now_t);
}
inline bool operator==(const std::tm& tm1, const std::tm& tm2) inline bool operator==(const std::tm& tm1, const std::tm& tm2)
{ {
return (tm1.tm_sec == tm2.tm_sec && return (tm1.tm_sec == tm2.tm_sec &&
@ -46,7 +65,7 @@ inline bool operator==(const std::tm& tm1, const std::tm& tm2)
inline bool operator!=(const std::tm& tm1, const std::tm& tm2) inline bool operator!=(const std::tm& tm1, const std::tm& tm2)
{ {
return !(tm1==tm2); return !(tm1 == tm2);
} }
#ifdef _WIN32 #ifdef _WIN32
@ -84,14 +103,18 @@ inline bool fopen_s(FILE** fp, const std::string& filename, const char* mode)
#endif #endif
} }
inline float tz_offset() //Return utc offset in minutes or -1 on failure
inline int utc_minutes_offset(const std::tm& tm = localtime())
{ {
#ifdef _WIN32 #ifdef _WIN32
TIME_ZONE_INFORMATION tzinfo; DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
GetTimeZoneInformation(&tzinfo); auto rv = GetDynamicTimeZoneInformation(&tzinfo);
return tzinfo.Bias / -60.0f; if (!rv)
return -1;
return -1 * (tzinfo.Bias + tzinfo.DaylightBias);
#else #else
return 0.0f; return tm.tm_gmtoff / 60;
#endif #endif
} }

118
include/c11log/details/pattern_formatter.h
View File

@ -9,7 +9,6 @@
#include "./log_msg.h" #include "./log_msg.h"
#include "./fast_oss.h" #include "./fast_oss.h"
#include "./os.h" #include "./os.h"
#include "Windows.h"
namespace c11log namespace c11log
{ {
@ -58,7 +57,7 @@ class a_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_str(days[msg.tm_time.tm_wday]); msg.formatted.put_str(days[msg.tm_time.tm_wday]);
} }
}; };
@ -68,7 +67,7 @@ class A_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_str(full_days[msg.tm_time.tm_wday]); msg.formatted.put_str(full_days[msg.tm_time.tm_wday]);
} }
}; };
@ -78,7 +77,7 @@ class b_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_str(months[msg.tm_time.tm_mon]); msg.formatted.put_str(months[msg.tm_time.tm_mon]);
} }
}; };
@ -88,7 +87,7 @@ class B_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_str(full_months[msg.tm_time.tm_mon]); msg.formatted.put_str(full_months[msg.tm_time.tm_mon]);
} }
}; };
@ -97,17 +96,17 @@ class c_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_str(days[msg.tm_time.tm_wday]); msg.formatted.put_str(days[msg.tm_time.tm_wday]);
msg.formatted.putc(' '); msg.formatted.putc(' ');
msg.formatted.write_str(months[msg.tm_time.tm_mon]); msg.formatted.put_str(months[msg.tm_time.tm_mon]);
msg.formatted.putc(' '); msg.formatted.putc(' ');
msg.formatted.write_int(msg.tm_time.tm_mday, 2); msg.formatted.put_int(msg.tm_time.tm_mday, 2);
msg.formatted.putc(' '); msg.formatted.putc(' ');
msg.formatted.write_int(msg.tm_time.tm_hour, 2); msg.formatted.put_int(msg.tm_time.tm_hour, 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_min, 2); msg.formatted.put_int(msg.tm_time.tm_min, 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_sec, 2); msg.formatted.put_int(msg.tm_time.tm_sec, 2);
} }
}; };
@ -117,7 +116,7 @@ class C_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_year%100, 2); msg.formatted.put_int(msg.tm_time.tm_year % 100, 2);
} }
}; };
@ -128,11 +127,11 @@ class D_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_mon + 1, 2); msg.formatted.put_int(msg.tm_time.tm_mon + 1, 2);
msg.formatted.putc('/'); msg.formatted.putc('/');
msg.formatted.write_int(msg.tm_time.tm_mday, 2); msg.formatted.put_int(msg.tm_time.tm_mday, 2);
msg.formatted.putc('/'); msg.formatted.putc('/');
msg.formatted.write_int(msg.tm_time.tm_year % 100, 2); msg.formatted.put_int(msg.tm_time.tm_year % 100, 2);
} }
}; };
@ -142,7 +141,7 @@ class Y_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_year + 1900, 4); msg.formatted.put_int(msg.tm_time.tm_year + 1900, 4);
} }
}; };
@ -151,7 +150,7 @@ class m_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_mon + 1, 2); msg.formatted.put_int(msg.tm_time.tm_mon + 1, 2);
} }
}; };
@ -160,7 +159,7 @@ class d_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_mday, 2); msg.formatted.put_int(msg.tm_time.tm_mday, 2);
} }
}; };
@ -169,7 +168,7 @@ class H_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_hour, 2); msg.formatted.put_int(msg.tm_time.tm_hour, 2);
} }
}; };
@ -178,7 +177,7 @@ class I_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(to12h(msg.tm_time), 2); msg.formatted.put_int(to12h(msg.tm_time), 2);
} }
}; };
@ -187,7 +186,7 @@ class M_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_min, 2); msg.formatted.put_int(msg.tm_time.tm_min, 2);
} }
}; };
@ -196,7 +195,7 @@ class S_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_sec, 2); msg.formatted.put_int(msg.tm_time.tm_sec, 2);
} }
}; };
@ -207,7 +206,7 @@ class e_formatter :public flag_formatter
{ {
auto duration = msg.time.time_since_epoch(); auto duration = msg.time.time_since_epoch();
auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000; auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count() % 1000;
msg.formatted.write_int(static_cast<int>(millis), 3); msg.formatted.put_int(static_cast<int>(millis), 3);
} }
}; };
@ -216,7 +215,7 @@ class p_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_data(ampm(msg.tm_time), 2); msg.formatted.put_data(ampm(msg.tm_time), 2);
} }
}; };
@ -227,13 +226,13 @@ class r_formatter :public flag_formatter
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
int hours = to12h(msg.tm_time); int hours = to12h(msg.tm_time);
msg.formatted.write_int(to12h(msg.tm_time), 2); msg.formatted.put_int(to12h(msg.tm_time), 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_min, 2); msg.formatted.put_int(msg.tm_time.tm_min, 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_sec, 2); msg.formatted.put_int(msg.tm_time.tm_sec, 2);
msg.formatted.putc(' '); msg.formatted.putc(' ');
msg.formatted.write_data(ampm(msg.tm_time), 2); msg.formatted.put_data(ampm(msg.tm_time), 2);
} }
}; };
@ -242,9 +241,9 @@ class R_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_hour, 2); msg.formatted.put_int(msg.tm_time.tm_hour, 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_min, 2); msg.formatted.put_int(msg.tm_time.tm_min, 2);
} }
}; };
@ -254,15 +253,50 @@ class T_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_int(msg.tm_time.tm_hour, 2); msg.formatted.put_int(msg.tm_time.tm_hour, 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_min, 2); msg.formatted.put_int(msg.tm_time.tm_min, 2);
msg.formatted.putc(':'); msg.formatted.putc(':');
msg.formatted.write_int(msg.tm_time.tm_sec, 2); msg.formatted.put_int(msg.tm_time.tm_sec, 2);
} }
}; };
// ISO 8601 offset from UTC in timezone (HH:MM)
class z_formatter :public flag_formatter
{
public:
void format(log_msg& msg) override
{
std::lock_guard<std::mutex> l(_mutex);
using namespace std::chrono;
auto diff = msg.time - _last_update;
auto secs_diff = abs((duration_cast<seconds>(diff)).count());
if (secs_diff >= 2)
{
_value = get_value(msg);
_last_update = msg.time;
}
msg.formatted.put_str(_value);
}
private:
log_clock::time_point _last_update;
std::string _value;
std::string get_value(const log_msg& msg)
{
int total_minutes = os::utc_minutes_offset(msg.tm_time);
int h = total_minutes / 60;
int m = total_minutes % 60;
fast_oss oss;
oss.putc(h < 0 ? '-' : '+');
oss.put_int(h, 2);
oss.putc(':');
oss.put_int(m, 2);
return oss.str();
}
std::mutex _mutex;
};
@ -271,7 +305,7 @@ class t_formatter :public flag_formatter
{ {
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_fast_oss(msg.raw); msg.formatted.put_fast_oss(msg.raw);
} }
}; };
@ -301,7 +335,7 @@ public:
} }
void format(details::log_msg& msg) override void format(details::log_msg& msg) override
{ {
msg.formatted.write_str(_str); msg.formatted.put_str(_str);
} }
private: private:
std::string _str; std::string _str;
@ -386,7 +420,7 @@ inline void c11log::details::pattern_formatter::handle_flag(char flag)
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::A_formatter())); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::A_formatter()));
break; break;
case('b'): case('b') :
case('h') : case('h') :
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::b_formatter())); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::b_formatter()));
break; break;
@ -436,11 +470,11 @@ inline void c11log::details::pattern_formatter::handle_flag(char flag)
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::S_formatter())); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::S_formatter()));
break; break;
case('e'): case('e') :
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::e_formatter())); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::e_formatter()));
break; break;
case('p'): case('p') :
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::p_formatter())); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::p_formatter()));
break; break;
@ -453,10 +487,14 @@ inline void c11log::details::pattern_formatter::handle_flag(char flag)
break; break;
case('T') : case('T') :
case('X'): case('X') :
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::T_formatter())); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::T_formatter()));
break; break;
case('z') :
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::z_formatter()));
break;
default: //Unkown flag appears as is default: //Unkown flag appears as is
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter('%'))); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter('%')));
_formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter(flag))); _formatters.push_back(std::unique_ptr<details::flag_formatter>(new details::ch_formatter(flag)));