mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 07:30:19 +00:00
57c29491a3
We had some kernel-specific gizmos in AK that should really just be in the Kernel subdirectory instead. The only thing remaining after moving those was mmx_memcpy() which I moved to the ARCH(i386)-specific section of LibC/string.cpp.
296 lines
6.2 KiB
C++
296 lines
6.2 KiB
C++
#pragma once
|
|
|
|
#ifdef KERNEL
|
|
# include <Kernel/StdLib.h>
|
|
#else
|
|
# include <stdlib.h>
|
|
# include <string.h>
|
|
#endif
|
|
|
|
#define UNUSED_PARAM(x) (void)x
|
|
|
|
#include <AK/Types.h>
|
|
|
|
#if defined(__serenity__) && !defined(KERNEL)
|
|
extern "C" void* mmx_memcpy(void* to, const void* from, size_t);
|
|
#endif
|
|
|
|
[[gnu::always_inline]] inline void fast_u32_copy(u32* dest, const u32* src, size_t count)
|
|
{
|
|
#if defined(__serenity__) && !defined(KERNEL)
|
|
if (count >= 256) {
|
|
mmx_memcpy(dest, src, count * sizeof(count));
|
|
return;
|
|
}
|
|
#endif
|
|
asm volatile(
|
|
"rep movsl\n"
|
|
: "=S"(src), "=D"(dest), "=c"(count)
|
|
: "S"(src), "D"(dest), "c"(count)
|
|
: "memory");
|
|
}
|
|
|
|
[[gnu::always_inline]] inline void fast_u32_fill(u32* dest, u32 value, size_t count)
|
|
{
|
|
asm volatile(
|
|
"rep stosl\n"
|
|
: "=D"(dest), "=c"(count)
|
|
: "D"(dest), "c"(count), "a"(value)
|
|
: "memory");
|
|
}
|
|
|
|
inline constexpr u32 round_up_to_power_of_two(u32 value, u32 power_of_two)
|
|
{
|
|
return ((value - 1) & ~(power_of_two - 1)) + power_of_two;
|
|
}
|
|
|
|
namespace AK {
|
|
|
|
template<typename T>
|
|
inline constexpr T min(const T& a, const T& b)
|
|
{
|
|
return a < b ? a : b;
|
|
}
|
|
|
|
template<typename T>
|
|
inline constexpr T max(const T& a, const T& b)
|
|
{
|
|
return a < b ? b : a;
|
|
}
|
|
|
|
template<typename T, typename U>
|
|
inline constexpr T ceil_div(T a, U b)
|
|
{
|
|
static_assert(sizeof(T) == sizeof(U));
|
|
T result = a / b;
|
|
if ((a % b) != 0)
|
|
++result;
|
|
return result;
|
|
}
|
|
|
|
#ifdef __clang__
|
|
# pragma clang diagnostic push
|
|
# pragma clang diagnostic ignored "-Wconsumed"
|
|
#endif
|
|
template<typename T>
|
|
T&& move(T& arg)
|
|
{
|
|
return static_cast<T&&>(arg);
|
|
}
|
|
#ifdef __clang__
|
|
# pragma clang diagnostic pop
|
|
#endif
|
|
|
|
template<typename T>
|
|
struct Identity {
|
|
typedef T Type;
|
|
};
|
|
|
|
template<class T>
|
|
constexpr T&& forward(typename Identity<T>::Type& param)
|
|
{
|
|
return static_cast<T&&>(param);
|
|
}
|
|
|
|
template<typename T, typename U>
|
|
T exchange(T& a, U&& b)
|
|
{
|
|
T tmp = move(a);
|
|
a = move(b);
|
|
return tmp;
|
|
}
|
|
|
|
template<typename T, typename U>
|
|
void swap(T& a, U& b)
|
|
{
|
|
U tmp = move((U&)a);
|
|
a = (T &&) move(b);
|
|
b = move(tmp);
|
|
}
|
|
|
|
template<bool B, class T = void>
|
|
struct EnableIf {
|
|
};
|
|
|
|
template<class T>
|
|
struct EnableIf<true, T> {
|
|
typedef T Type;
|
|
};
|
|
|
|
template<class T>
|
|
struct RemoveConst {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemoveConst<const T> {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemoveVolatile {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemoveVolatile<volatile T> {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemoveCV {
|
|
typedef typename RemoveVolatile<typename RemoveConst<T>::Type>::Type Type;
|
|
};
|
|
|
|
template<class T, T v>
|
|
struct IntegralConstant {
|
|
static constexpr T value = v;
|
|
typedef T ValueType;
|
|
typedef IntegralConstant Type;
|
|
constexpr operator ValueType() const { return value; }
|
|
constexpr ValueType operator()() const { return value; }
|
|
};
|
|
|
|
typedef IntegralConstant<bool, false> FalseType;
|
|
typedef IntegralConstant<bool, true> TrueType;
|
|
|
|
template<class T>
|
|
struct __IsPointerHelper : FalseType {
|
|
};
|
|
|
|
template<class T>
|
|
struct __IsPointerHelper<T*> : TrueType {
|
|
};
|
|
|
|
template<class T>
|
|
struct IsPointer : __IsPointerHelper<typename RemoveCV<T>::Type> {
|
|
};
|
|
|
|
template<class>
|
|
struct IsFunction : FalseType {
|
|
};
|
|
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...)> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...)> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) const> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) const> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) volatile> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) volatile> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) const volatile> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) const volatile> : TrueType {
|
|
};
|
|
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...)&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...)&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) const&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) const&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) volatile&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) volatile&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) const volatile&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) const volatile&> : TrueType {
|
|
};
|
|
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) &&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) &&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) const&&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) const&&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) volatile&&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) volatile&&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args...) const volatile&&> : TrueType {
|
|
};
|
|
template<class Ret, class... Args>
|
|
struct IsFunction<Ret(Args..., ...) const volatile&&> : TrueType {
|
|
};
|
|
|
|
template<class T>
|
|
struct IsRvalueReference : FalseType {
|
|
};
|
|
template<class T>
|
|
struct IsRvalueReference<T&&> : TrueType {
|
|
};
|
|
|
|
template<class T>
|
|
struct RemovePointer {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemovePointer<T*> {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemovePointer<T* const> {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemovePointer<T* volatile> {
|
|
typedef T Type;
|
|
};
|
|
template<class T>
|
|
struct RemovePointer<T* const volatile> {
|
|
typedef T Type;
|
|
};
|
|
|
|
template<typename T, typename U>
|
|
struct IsSame {
|
|
enum {
|
|
value = 0
|
|
};
|
|
};
|
|
|
|
template<typename T>
|
|
struct IsSame<T, T> {
|
|
enum {
|
|
value = 1
|
|
};
|
|
};
|
|
|
|
}
|
|
|
|
using AK::ceil_div;
|
|
using AK::exchange;
|
|
using AK::forward;
|
|
using AK::IsSame;
|
|
using AK::max;
|
|
using AK::min;
|
|
using AK::move;
|
|
using AK::RemoveConst;
|
|
using AK::swap;
|