42 lines
1.8 KiB
C
42 lines
1.8 KiB
C
#ifndef MEM_ARENA_H
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#define MEM_ARENA_H
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#include "../../../common/aliases/aliases.h"
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#include "../../../common/platform/platform.h"
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#include "../../os/mem/mem_os.h"
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#include <stdbool.h>
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#ifdef WAPP_PLATFORM_CPP
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BEGIN_C_LINKAGE
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#endif // WAPP_PLATFORM_CPP
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typedef struct arena Arena;
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#define wapp_mem_arena_init(arena_dptr, base_capacity) \
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(wapp_mem_arena_init_custom(arena_dptr, base_capacity, WAPP_MEM_ALLOC_RESERVE, false))
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#define wapp_mem_arena_init_commit(arena_dptr, base_capacity) \
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(wapp_mem_arena_init_custom(arena_dptr, base_capacity, WAPP_MEM_ALLOC_RESERVE | WAPP_MEM_ALLOC_COMMIT, false))
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#define wapp_mem_arena_init_zero(arena_dptr, base_capacity) \
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(wapp_mem_arena_init_custom(arena_dptr, base_capacity, WAPP_MEM_ALLOC_RESERVE, true))
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#define wapp_mem_arena_init_commit_and_zero(arena_dptr, base_capacity) \
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(wapp_mem_arena_init_custom(arena_dptr, base_capacity, WAPP_MEM_ALLOC_RESERVE | WAPP_MEM_ALLOC_COMMIT, true))
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/**
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* Arena initialisation function. `wapp_mem_arena_init_custom` provides the most
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* control over how the Arena is initialised. Wrapper macros are provided for
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* easier use.
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*/
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bool wapp_mem_arena_init_custom(Arena **arena, u64 base_capacity, MemAllocFlags flags, bool zero_buffer);
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void *wapp_mem_arena_alloc(Arena *arena, u64 size);
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void *wapp_mem_arena_alloc_aligned(Arena *arena, u64 size, u64 alignment);
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void *wapp_mem_arena_realloc(Arena *arena, void *ptr, u64 old_size, u64 new_size);
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void *wapp_mem_arena_realloc_aligned(Arena *arena, void *ptr, u64 old_size, u64 new_size, u64 alignment);
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void wapp_mem_arena_clear(Arena *arena);
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void wapp_mem_arena_destroy(Arena **arena);
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#ifdef WAPP_PLATFORM_CPP
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END_C_LINKAGE
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#endif // WAPP_PLATFORM_CPP
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#endif // !MEM_ARENA_H
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