58 lines
2.4 KiB
C
58 lines
2.4 KiB
C
#ifndef MEM_ARENA_H
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#define MEM_ARENA_H
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#include "aliases.h"
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#include "mem_utils.h"
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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typedef struct arena Arena;
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/***************************************************************************/ //
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////////////////////////////////////////////////////////////////////////////////
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////// Arena wrapper macros
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////////////////////////////////////////////////////////////////////////////////
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/***************************************************************************/ //
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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, \
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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, \
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WAPP_MEM_ALLOC_RESERVE | WAPP_MEM_ALLOC_COMMIT, \
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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, \
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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, \
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WAPP_MEM_ALLOC_RESERVE | WAPP_MEM_ALLOC_COMMIT, \
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true))
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/***************************************************************************/ //
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////////////////////////////////////////////////////////////////////////////////
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////// Arena API declarations
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////////////////////////////////////////////////////////////////////////////////
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/***************************************************************************/ //
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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,
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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_clear(Arena *arena);
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void wapp_mem_arena_destroy(Arena **arena);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // !MEM_ARENA_H
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