42 lines
932 B
C
42 lines
932 B
C
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#include <alloc/arena.h>
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rr_arena_s rr_new_arena(usz_t capacity)
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{
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rr_arena_s arena;
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arena.capacity = capacity;
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arena.offset = 0;
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arena.allocation = malloc(capacity);
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return arena;
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}
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void rr_delete_arena(rr_arena_s *arena)
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{
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if(arena->allocation == NULL) return;
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free(arena->allocation);
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arena->allocation = NULL;
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}
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void * rr_arena_alloc(rr_arena_s *arena, usz_t length)
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{
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if((arena->offset + length) > arena->capacity)
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return NULL;
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void *block = &arena->allocation[arena->offset];
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arena->offset += length;
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return block;
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}
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char * rr_arena_clone_string(rr_arena_s *arena, char *string)
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{
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usz_t len_string = rr_measure_string(string);
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char *cloned_string = rr_arena_alloc(arena, len_string+1);
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if(cloned_string == NULL)
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return NULL;
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rr_memcopy(cloned_string, string, len_string);
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cloned_string[len_string] = 0x00;
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return cloned_string;
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}
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