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Code Issues Releases Wiki Activity

ircd: Tweak exception stack linkages for optimal code generation.

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This commit is contained in:
Jason Volk 2020-08-05 19:48:43 -07:00
parent 1023d0eab2
commit 5f96613c27
3 changed files with 40 additions and 10 deletions
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22
include/ircd/exception.h
View file

@ -96,11 +96,7 @@ struct ircd::exception
public:
const char *what() const noexcept override;
exception(generate_skip_t = {}) noexcept
{
buf[0] = '\0';
}
exception(generate_skip_t = {}) noexcept;
exception(exception &&) = delete;
exception(const exception &) = delete;
exception &operator=(exception &&) = delete;
@ -144,6 +140,7 @@ struct name \
:parent \
{ \
template<class... args> \
[[gnu::noinline]] \
name(hide_name_t, const string_view &fmt, args&&... ap) noexcept \
:parent{generate_skip} \
{ \
@ -151,6 +148,7 @@ struct name \
} \
\
template<class... args> \
[[gnu::noinline]] \
name(hide_name_t, const string_view &fmt = " ") noexcept \
:parent{generate_skip} \
{ \
@ -158,6 +156,7 @@ struct name \
} \
\
template<class... args> \
[[gnu::noinline]] \
name(const string_view &fmt, args&&... ap) noexcept \
:parent{generate_skip} \
{ \
@ -165,12 +164,14 @@ struct name \
} \
\
template<class... args> \
[[gnu::noinline]] \
name(const string_view &fmt = " ") noexcept \
:parent{generate_skip} \
{ \
generate(#name, fmt, ircd::va_rtti{}); \
} \
\
[[using gnu: flatten, always_inline]] \
name(generate_skip_t) noexcept \
:parent{generate_skip} \
{ \
@ -183,6 +184,7 @@ struct name \
:parent \
{ \
template<class... args> \
[[gnu::noinline]] \
name(const string_view &fmt, args&&... ap) noexcept \
:parent{generate_skip} \
{ \
@ -190,12 +192,14 @@ struct name \
} \
\
template<class... args> \
[[gnu::noinline]] \
name(const string_view &fmt = " ") noexcept \
:parent{generate_skip} \
{ \
generate(fmt, ircd::va_rtti{}); \
} \
\
[[using gnu: flatten, always_inline]] \
name(generate_skip_t = {}) noexcept \
:parent{generate_skip} \
{ \
@ -240,3 +244,11 @@ ircd::make_system_eptr(args&&... a)
{
return std::make_exception_ptr(make_system_error(std::forward<args>(a)...));
}
[[gnu::always_inline]]
inline
ircd::exception::exception(generate_skip_t)
noexcept
{
buf[0] = '\0';
}

25
include/ircd/m/error.h
View file

@ -38,9 +38,7 @@ class ircd::m::error
protected:
IRCD_OVERLOAD(child)
template<class... args> error(child_t, args&&... a)
:error{std::forward<args>(a)...}
{}
template<class... args> error(child_t, args&&...);
public:
string_view errcode() const noexcept;
@ -78,19 +76,24 @@ class ircd::m::error
struct _name_ \
: _parent_ \
{ \
[[gnu::noinline]] \
_name_() \
: _parent_ \
{ \
child, _httpcode_, "M_"#_name_, "%s", http::status(_httpcode_) \
}{} \
\
template<class... args> _name_(const string_view &fmt, args&&... a) \
template<class... args> \
[[gnu::noinline]] \
_name_(const string_view &fmt, args&&... a) \
: _parent_ \
{ \
child, _httpcode_, "M_"#_name_, fmt, std::forward<args>(a)... \
}{} \
\
template<class... args> _name_(child_t, args&&... a) \
template<class... args> \
[[gnu::noinline]] \
_name_(child_t, args&&... a) \
: _parent_ \
{ \
child, std::forward<args>(a)... \
@ -116,6 +119,7 @@ namespace ircd::m
}
template<class... args>
[[using gnu: flatten]]
inline
ircd::m::error::error(const http::code &status,
const string_view &errcode,
@ -151,3 +155,14 @@ ircd::m::error::error(const string_view &errcode,
http::INTERNAL_SERVER_ERROR, errcode, fmt, std::forward<args>(a)...
}
{}
template<class... args>
[[using gnu: flatten, always_inline]]
inline
ircd::m::error::error(child_t,
args&&... a)
:error
{
std::forward<args>(a)...
}
{}

3
include/ircd/panic.h
View file

@ -41,6 +41,7 @@ struct name \
:parent \
{ \
template<class... args> \
[[gnu::noinline]] \
name(const string_view &fmt, args&&... ap) noexcept \
:parent{generate_skip} \
{ \
@ -49,6 +50,7 @@ struct name \
} \
\
template<class... args> \
[[gnu::noinline]] \
name(const string_view &fmt = " ") noexcept \
:parent{generate_skip} \
{ \
@ -56,6 +58,7 @@ struct name \
ircd::panicking(*this); \
} \
\
[[gnu::always_inline]] \
name(generate_skip_t) \
:parent{generate_skip} \
{ \