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malloc continue

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This commit is contained in:
Gregory 2019-04-26 13:59:34 +03:00
parent 7b7db9ff93
commit 140635eb5f
2 changed files with 17 additions and 6 deletions
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2
inc/ft_malloc.h
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@ -7,7 +7,7 @@
typedef struct s_header typedef struct s_header
{ {
struct s_header *next; struct s_header *next;
size_t size; size_t units;
} t_header; } t_header;
static t_header base; static t_header base;

21
src/malloc.c
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@ -8,14 +8,25 @@ t_header *morecore(size_t size)
void *malloc(size_t size) void *malloc(size_t size)
{ {
t_header *p; t_header *curr;
t_header *prevp; t_header *prev;
size_t nunits; size_t nunits;
void *space;
space = NULL;
nunits = (size + sizeof(t_header) - 1) / (sizeof(t_header) + 1); nunits = (size + sizeof(t_header) - 1) / (sizeof(t_header) + 1);
if ((prevp = freep) == NULL) if ((prev = freep) == NULL)
{ {
base.next = freep = prevp = &base; base.next = freep = prev = &base;
base.size = 0; base.units = 0;
} }
while(!space)
{
curr = prev->next;
if (curr->units >= nunits)
prev->next = curr->next;
prev = curr;
curr = curr->next;
}
return (space);
} }