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memory.hpp no longer uses memory mappings by default

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Edward R. Gonzalez
2024-11-30 17:18:49 -05:00
parent 5527a27f7b
commit 06deb1e836
9 changed files with 170 additions and 102 deletions
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8
project/dependencies/basic_types.hpp
View File

@@ -126,10 +126,18 @@ typedef s32 b32;
using mem_ptr = void*;
using mem_ptr_const = void const*;
#if ! GEN_COMPILER_C
template<typename Type> uptr to_uptr( Type* ptr ) { return (uptr)ptr; }
template<typename Type> sptr to_sptr( Type* ptr ) { return (sptr)ptr; }
template<typename Type> mem_ptr to_mem_ptr ( Type ptr ) { return (mem_ptr) ptr; }
template<typename Type> mem_ptr_const to_mem_ptr_const( Type ptr ) { return (mem_ptr_const)ptr; }
#else
#define to_utpr( ptr ) ((uptr)(ptr))
#define to_stpr( ptr ) ((sptr)(ptr))
#define to_mem_ptr( ptr) ((mem_ptr)ptr)
#define to_mem_ptr_const( ptr) ((mem_ptr)ptr)
#endif
#pragma endregion Basic Types

67
project/dependencies/macros.hpp
View File

@@ -23,17 +23,32 @@
#define bitfield_is_equal( Type, Field, Mask ) ( (Type(Mask) & Type(Field)) == Type(Mask) )
#endif
#ifndef ccast
#define ccast( type, value ) ( const_cast< type >( (value) ) )
#endif
#ifndef pcast
#define pcast( type, value ) ( * reinterpret_cast< type* >( & ( value ) ) )
#endif
#ifndef rcast
#define rcast( type, value ) reinterpret_cast< type >( value )
#endif
#ifndef scast
#define scast( type, value ) static_cast< type >( value )
#if ! GEN_C_COMPILER
# ifndef ccast
# define ccast( type, value ) ( const_cast< type >( (value) ) )
# endif
# ifndef pcast
# define pcast( type, value ) ( * reinterpret_cast< type* >( & ( value ) ) )
# endif
# ifndef rcast
# define rcast( type, value ) reinterpret_cast< type >( value )
# endif
# ifndef scast
# define scast( type, value ) static_cast< type >( value )
# endif
#else
# ifndef ccast
# define ccast( type, value ) ( (type)(value) )
# endif
# ifndef pcast
# define pcast( type, value ) ( (type)(value) )
# endif
# ifndef rcast
# define rcast( type, value ) ( (type)(value) )
# endif
# ifndef scast
# define scast( type, value ) ( (type)(value) )
# endif
#endif
#ifndef stringize
@@ -123,20 +138,20 @@
#define min( a, b ) ( (a < b) ? (a) : (b) )
#endif
#if defined( _MSC_VER ) || defined( GEN_COMPILER_TINYC )
#if GEN_COMPILER_MSVC || GEN_COMPILER_TINYC
# define offset_of( Type, element ) ( ( GEN_NS( ssize ) ) & ( ( ( Type* )0 )->element ) )
#else
# define offset_of( Type, element ) __builtin_offsetof( Type, element )
#endif
#ifndef forceinline
# ifdef GEN_COMPILER_MSVC
# if GEN_COMPILER_MSVC
# define forceinline __forceinline
# define neverinline __declspec( noinline )
# elif defined(GEN_COMPILER_GCC)
# elif GEN_COMPILER_GCC
# define forceinline inline __attribute__((__always_inline__))
# define neverinline __attribute__( ( __noinline__ ) )
# elif defined(GEN_COMPILER_CLANG)
# elif GEN_COMPILER_CLANG
# if __has_attribute(__always_inline__)
# define forceinline inline __attribute__((__always_inline__))
# define neverinline __attribute__( ( __noinline__ ) )
@@ -151,11 +166,11 @@
#endif
#ifndef neverinline
# ifdef GEN_COMPILER_MSVC
# if GEN_COMPILER_MSVC
# define neverinline __declspec( noinline )
# elif defined(GEN_COMPILER_GCC)
# elif GEN_COMPILER_GCC
# define neverinline __attribute__( ( __noinline__ ) )
# elif defined(GEN_COMPILER_CLANG)
# elif GEN_COMPILER_CLANG
# if __has_attribute(__always_inline__)
# define neverinline __attribute__( ( __noinline__ ) )
# else
@@ -166,4 +181,20 @@
# endif
#endif
#if !defined(GEN_SUPPORT_CPP_MEMBER_FEATURES) && (!GEN_COMPILER_C || __STDC_VERSION__ < 202311L)
# define GEN_SUPPORT_CPP_MEMBER_FEATURES 0
#endif
#if !defined(typeof) && (!GEN_COMPILER_C || __STDC_VERSION__ < 202311L)
# if ! GEN_COMPILER_C
# define typeof
# elif defined(_MSC_VER)
# define typeof(x) __typeof(x)
# elif defined(__GNUC__) || defined(__clang__)
# define typeof(x) __typeof__(x)
# else
# error "Compiler not supported"
# endif
#endif
#pragma endregion Macros

109
project/dependencies/memory.hpp
View File

@@ -14,13 +14,23 @@
#define GEN__HIGHS ( GEN__ONES * ( GEN_U8_MAX / 2 + 1 ) )
#define GEN__HAS_ZERO( x ) ( ( ( x ) - GEN__ONES ) & ~( x ) & GEN__HIGHS )
template< class Type >
void swap( Type& a, Type& b )
{
Type tmp = a;
a = b;
b = tmp;
}
#if ! GEN_COMPILER_C
template< class Type >
void swap( Type& a, Type& b )
{
Type tmp = a;
a = b;
b = tmp;
}
#else
#define swap( a, b ) \
do { \
typeof(a) \
temp = (a); \
(a) = (b); \
(b) = temp; \
} while(0)
#endif
//! Checks if value is power of 2.
b32 is_power_of_two( ssize x );
@@ -179,8 +189,8 @@ AllocatorInfo allocator_info( Arena& arena );
void* arena_allocator_proc(void* allocator_data, AllocType type, ssize size, ssize alignment, void* old_memory, ssize old_size, u64 flags);
// Add these declarations after the Arena struct
Arena init_from_allocator(AllocatorInfo backing, ssize size);
Arena init_from_memory( void* start, ssize size );
Arena arena_init_from_allocator(AllocatorInfo backing, ssize size);
Arena arena_init_from_memory( void* start, ssize size );
Arena init_sub(Arena& parent, ssize size);
ssize alignment_of(Arena& arena, ssize alignment);
@@ -201,14 +211,14 @@ struct Arena
ssize TotalUsed;
ssize TempCount;
#if 1
#if GEN_SUPPORT_CPP_MEMBER_FEATURES
#pragma region Member Mapping
forceinline operator AllocatorInfo() { return GEN_NS allocator_info(* this); }
forceinline static void* allocator_proc( void* allocator_data, AllocType type, ssize size, ssize alignment, void* old_memory, ssize old_size, u64 flags ) { return GEN_NS arena_allocator_proc( allocator_data, type, size, alignment, old_memory, old_size, flags ); }
forceinline static Arena init_from_memory( void* start, ssize size ) { return GEN_NS init_from_memory( start, size ); }
forceinline static Arena init_from_allocator( AllocatorInfo backing, ssize size ) { return GEN_NS init_from_allocator( backing, size ); }
forceinline static Arena init_sub( Arena& parent, ssize size ) { return GEN_NS init_from_allocator( parent.Backing, size ); }
forceinline static Arena init_from_memory( void* start, ssize size ) { return GEN_NS arena_init_from_memory( start, size ); }
forceinline static Arena init_from_allocator( AllocatorInfo backing, ssize size ) { return GEN_NS arena_init_from_allocator( backing, size ); }
forceinline static Arena init_sub( Arena& parent, ssize size ) { return GEN_NS arena_init_from_allocator( parent.Backing, size ); }
forceinline ssize alignment_of( ssize alignment ) { return GEN_NS alignment_of(* this, alignment); }
forceinline void free() { return GEN_NS free(* this); }
forceinline ssize size_remaining( ssize alignment ) { return GEN_NS size_remaining(* this, alignment); }
@@ -229,7 +239,7 @@ AllocatorInfo allocator_info( Arena& arena ) {
}
inline
Arena init_from_memory( void* start, ssize size )
Arena arena_init_from_memory( void* start, ssize size )
{
Arena arena = {
{ nullptr, nullptr },
@@ -242,39 +252,36 @@ Arena init_from_memory( void* start, ssize size )
}
inline
Arena init_from_allocator(AllocatorInfo backing, ssize size)
{
Arena result =
{
backing,
alloc(backing, size),
size,
0,
0
};
return result;
Arena arena_init_from_allocator(AllocatorInfo backing, ssize size) {
Arena result = {
backing,
alloc(backing, size),
size,
0,
0
};
return result;
}
inline
Arena init_sub(Arena& parent, ssize size)
{
return init_from_allocator(parent.Backing, size);
Arena init_sub(Arena& parent, ssize size) {
return arena_init_from_allocator(parent.Backing, size);
}
inline
ssize alignment_of(Arena& arena, ssize alignment)
{
ssize alignment_offset, result_pointer, mask;
GEN_ASSERT(is_power_of_two(alignment));
ssize alignment_offset, result_pointer, mask;
GEN_ASSERT(is_power_of_two(alignment));
alignment_offset = 0;
result_pointer = (ssize)arena.PhysicalStart + arena.TotalUsed;
mask = alignment - 1;
alignment_offset = 0;
result_pointer = (ssize)arena.PhysicalStart + arena.TotalUsed;
mask = alignment - 1;
if (result_pointer & mask)
alignment_offset = alignment - (result_pointer & mask);
if (result_pointer & mask)
alignment_offset = alignment - (result_pointer & mask);
return alignment_offset;
return alignment_offset;
}
#pragma push_macro("check")
@@ -289,18 +296,18 @@ void check(Arena& arena)
inline
void free(Arena& arena)
{
if (arena.Backing.Proc)
{
gen::free(arena.Backing, arena.PhysicalStart);
arena.PhysicalStart = nullptr;
}
if (arena.Backing.Proc)
{
GEN_NS free(arena.Backing, arena.PhysicalStart);
arena.PhysicalStart = nullptr;
}
}
inline
ssize size_remaining(Arena& arena, ssize alignment)
{
ssize result = arena.TotalSize - (arena.TotalUsed + alignment_of(arena, alignment));
return result;
ssize result = arena.TotalSize - (arena.TotalUsed + alignment_of(arena, alignment));
return result;
}
#pragma endregion Arena
@@ -317,15 +324,15 @@ template<s32 Size> ssize size_remaining(FixedArena<Size>& fixed_arena
template< s32 Size >
struct FixedArena
{
char memory[Size];
Arena arena;
char memory[Size];
Arena arena;
#if 1
#if GEN_SUPPORT_CPP_MEMBER_FEATURES
#pragma region Member Mapping
forceinline operator AllocatorInfo() { return GEN_NS allocator_info(* this); }
forceinline operator AllocatorInfo() { return GEN_NS allocator_info(* this); }
forceinline static FixedArena init() { FixedArena result; GEN_NS fixed_arena_init<Size>(result); return result; }
forceinline ssize size_remaining(ssize alignment) { GEN_NS size_remaining(*this, alignment); }
forceinline static FixedArena init() { FixedArena result; GEN_NS fixed_arena_init<Size>(result); return result; }
forceinline ssize size_remaining(ssize alignment) { GEN_NS size_remaining(*this, alignment); }
#pragma endregion Member Mapping
#endif
};
@@ -336,7 +343,7 @@ AllocatorInfo allocator_info( FixedArena<Size>& fixed_arena ) { return { arena_a
template<s32 Size> inline
void fixed_arena_init(FixedArena<Size>& result) {
zero_size(& result.memory[0], Size);
result.arena = init_from_memory(& result.memory[0], Size);
result.arena = arena_init_from_memory(& result.memory[0], Size);
}
template<s32 Size> inline
@@ -378,6 +385,7 @@ struct Pool
ssize TotalSize;
ssize NumBlocks;
#if GEN_SUPPORT_CPP_MEMBER_FEATURES
#pragma region Member Mapping
forceinline operator AllocatorInfo() { return GEN_NS allocator_info(* this); }
@@ -387,6 +395,7 @@ struct Pool
forceinline void clear() { GEN_NS clear(* this); }
forceinline void free() { GEN_NS free(* this); }
#pragma endregion
#endif
};
inline

10
project/dependencies/platform.hpp
View File

@@ -101,6 +101,14 @@
# define GEN_GCC_VERSION_CHECK(major,minor,patch) (0)
#endif
#ifndef GEN_COMPIELR_C
# if defined(__STDC_VERSION__)
# define GEN_COMPILER_C 1
# else
# define GEN_COMPILER_C 0
# endif
#endif
#pragma endregion Platform Detection
#pragma region Mandatory Includes
@@ -114,7 +122,7 @@
#pragma endregion Mandatory Includes
#ifdef GEN_DONT_USE_NAMESPACE
#if GEN_DONT_USE_NAMESPACE || GEN_COMPILER_C
# define GEN_NS
# define GEN_NS_BEGIN
# define GEN_NS_END