42 lines
818 B
C
42 lines
818 B
C
#include "ref.h"
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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void *rc_alloc(size_t size, void (*destructor)(void *self))
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{
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printf("rc_alloc %zu bytes\n", size);
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ref_header *header = malloc(sizeof(ref_header) + size);
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if (!header)
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{
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exit(69);
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}
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header->ref_count = 0;
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header->destructor = destructor;
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return (void *)(header + 1);
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}
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void rc_retain(void *obj)
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{
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printf("rc_retain\n");
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ref_header *header = ((ref_header *)obj) - 1;
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header->ref_count++;
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}
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void rc_release(void *obj)
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{
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ref_header *header = ((ref_header *)obj) - 1;
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printf("rc_release\n");
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if (--header->ref_count <= 0)
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{
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if (header->destructor)
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{
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header->destructor(obj);
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}
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free(header);
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printf("rc_free\n");
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}
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} |