allocator.h

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#ifndef GHOSTTY_VT_ALLOCATOR_H
#define GHOSTTY_VT_ALLOCATOR_H
 
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <ghostty/vt/types.h>


typedef void* (*GhosttyAllocatorAllocFn)(void *ctx, size_t len, uint8_t alignment, uintptr_t ret_addr);

typedef bool (*GhosttyAllocatorResizeFn)(void *ctx, void *memory, size_t memory_len, uint8_t alignment, size_t new_len, uintptr_t ret_addr);

typedef void* (*GhosttyAllocatorRemapFn)(void *ctx, void *memory, size_t memory_len, uint8_t alignment, size_t new_len, uintptr_t ret_addr);

typedef void (*GhosttyAllocatorFreeFn)(void *ctx, void *memory, size_t memory_len, uint8_t alignment, uintptr_t ret_addr);

typedef struct {
    GhosttyAllocatorAllocFn alloc;

    GhosttyAllocatorResizeFn resize;

    GhosttyAllocatorRemapFn remap;

    GhosttyAllocatorFreeFn free;

    void* reserved[4];
} GhosttyAllocatorVtable;

typedef struct GhosttyAllocator {
    void *ctx;

    const GhosttyAllocatorVtable *vtable;
} GhosttyAllocator;

GHOSTTY_API uint8_t* ghostty_alloc(const GhosttyAllocator* allocator, size_t len);

GHOSTTY_API void ghostty_free(const GhosttyAllocator* allocator, uint8_t* ptr, size_t len);

 
#endif /* GHOSTTY_VT_ALLOCATOR_H */