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Add an optional final qualifier to types

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When building with GCC's -Wfinal-types, a lot of types of spdlog
are marked as being more optimizable if they were marked final.

This patch adds a possibility for the user of the library to `#define SPDLOG_FINAL final`
and enjoy potentially better performance : GCC is then able to replace virtual calls by true
function calls if it can ensure that there are no derived types).

By default SPDLOG_FINAL is defined to nothing to not break existing code that
may be inheriting of some of these types for some reason.
This commit is contained in:
Jean-Michaël Celerier
2017-04-28 17:24:55 +02:00
parent 9e6d81de08
commit 53138c20fb
8 changed files with 41 additions and 35 deletions
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52
include/spdlog/details/pattern_formatter_impl.h
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@@ -99,7 +99,7 @@ static const days_array& full_days()
static const days_array arr{ { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" } };
return arr;
}
class A_formatter:public flag_formatter
class A_formatter SPDLOG_FINAL :public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -128,7 +128,7 @@ static const months_array& full_months()
static const months_array arr{ { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" } };
return arr;
}
class B_formatter:public flag_formatter
class B_formatter SPDLOG_FINAL :public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -153,7 +153,7 @@ static fmt::MemoryWriter& pad_n_join(fmt::MemoryWriter& w, int v1, int v2, int v
//Date and time representation (Thu Aug 23 15:35:46 2014)
class c_formatter:public flag_formatter
class c_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -164,7 +164,7 @@ class c_formatter:public flag_formatter
// year - 2 digit
class C_formatter:public flag_formatter
class C_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -175,7 +175,7 @@ class C_formatter:public flag_formatter
// Short MM/DD/YY date, equivalent to %m/%d/%y 08/23/01
class D_formatter:public flag_formatter
class D_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -185,7 +185,7 @@ class D_formatter:public flag_formatter
// year - 4 digit
class Y_formatter:public flag_formatter
class Y_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -194,7 +194,7 @@ class Y_formatter:public flag_formatter
};
// month 1-12
class m_formatter:public flag_formatter
class m_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -203,7 +203,7 @@ class m_formatter:public flag_formatter
};
// day of month 1-31
class d_formatter:public flag_formatter
class d_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -212,7 +212,7 @@ class d_formatter:public flag_formatter
};
// hours in 24 format 0-23
class H_formatter:public flag_formatter
class H_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -221,7 +221,7 @@ class H_formatter:public flag_formatter
};
// hours in 12 format 1-12
class I_formatter:public flag_formatter
class I_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -230,7 +230,7 @@ class I_formatter:public flag_formatter
};
// minutes 0-59
class M_formatter:public flag_formatter
class M_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -239,7 +239,7 @@ class M_formatter:public flag_formatter
};
// seconds 0-59
class S_formatter:public flag_formatter
class S_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -248,7 +248,7 @@ class S_formatter:public flag_formatter
};
// milliseconds
class e_formatter:public flag_formatter
class e_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm&) override
{
@@ -259,7 +259,7 @@ class e_formatter:public flag_formatter
};
// microseconds
class f_formatter:public flag_formatter
class f_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm&) override
{
@@ -270,7 +270,7 @@ class f_formatter:public flag_formatter
};
// nanoseconds
class F_formatter:public flag_formatter
class F_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm&) override
{
@@ -281,7 +281,7 @@ class F_formatter:public flag_formatter
};
// AM/PM
class p_formatter:public flag_formatter
class p_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -291,7 +291,7 @@ class p_formatter:public flag_formatter
// 12 hour clock 02:55:02 pm
class r_formatter:public flag_formatter
class r_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -300,7 +300,7 @@ class r_formatter:public flag_formatter
};
// 24-hour HH:MM time, equivalent to %H:%M
class R_formatter:public flag_formatter
class R_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -309,7 +309,7 @@ class R_formatter:public flag_formatter
};
// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S
class T_formatter:public flag_formatter
class T_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{
@@ -319,7 +319,7 @@ class T_formatter:public flag_formatter
// ISO 8601 offset from UTC in timezone (+-HH:MM)
class z_formatter:public flag_formatter
class z_formatter SPDLOG_FINAL:public flag_formatter
{
public:
const std::chrono::seconds cache_refresh = std::chrono::seconds(5);
@@ -376,7 +376,7 @@ private:
// Thread id
class t_formatter:public flag_formatter
class t_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm&) override
{
@@ -385,7 +385,7 @@ class t_formatter:public flag_formatter
};
// Current pid
class pid_formatter:public flag_formatter
class pid_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm&) override
{
@@ -394,7 +394,7 @@ class pid_formatter:public flag_formatter
};
class v_formatter:public flag_formatter
class v_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm&) override
{
@@ -402,7 +402,7 @@ class v_formatter:public flag_formatter
}
};
class ch_formatter:public flag_formatter
class ch_formatter SPDLOG_FINAL:public flag_formatter
{
public:
explicit ch_formatter(char ch): _ch(ch)
@@ -417,7 +417,7 @@ private:
//aggregate user chars to display as is
class aggregate_formatter:public flag_formatter
class aggregate_formatter SPDLOG_FINAL:public flag_formatter
{
public:
aggregate_formatter()
@@ -436,7 +436,7 @@ private:
// Full info formatter
// pattern: [%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v
class full_formatter:public flag_formatter
class full_formatter SPDLOG_FINAL:public flag_formatter
{
void format(details::log_msg& msg, const std::tm& tm_time) override
{