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#include "aplwc_internal.h"
struct memory
memory_init(uint8_t *data , size_t size)
{
struct memory mem;
mem.data = data;
mem.size = size;
mem.offset = 0;
return mem;
}
static void *
alloc(struct memory *m, size_t size, size_t align)
{
uintptr_t ptr;
size_t alloc_size, adjust;
void *p;
ptr = ((uintptr_t)m->data) + m->offset;
alloc_size = size;
if(NEVER(align == 0))
return NULL;
adjust = ptr % align;
if(adjust)
alloc_size += align - adjust;
if((m->size - m->offset) >= alloc_size){
p = m->data+m->offset+alloc_size-size;
assert((((uintptr_t)p) % align) == 0);
m->offset += alloc_size;
memset(p, 0, size);
}else
p = NULL;
return p;
}
struct aplwc *
memory_alloc_aplwc(struct memory *m)
{
struct aplwc *p;
p = alloc(m, sizeof(struct aplwc), alignof(struct aplwc));
return p;
}
void
memory_free_aplwc(struct memory *m, struct aplwc *p)
{
UNUSED_PARAMETER(m);
UNUSED_PARAMETER(p);
}
struct aplwc_line *
memory_alloc_aplwc_line(struct memory *m)
{
struct aplwc_line *p;
p = alloc(m, sizeof(struct aplwc_line), alignof(struct aplwc_line));
return p;
}
void
memory_free_aplwc_line(struct memory *m, struct aplwc_line *p)
{
UNUSED_PARAMETER(m);
UNUSED_PARAMETER(p);
}
struct string *
memory_alloc_string(struct memory *m, size_t bytes)
{
struct string *p;
p = alloc(m, sizeof(struct string) + bytes, alignof(struct string));
return p;
}
void
memory_free_string(struct memory *m, struct string *p)
{
UNUSED_PARAMETER(m);
UNUSED_PARAMETER(p);
}
struct token_list *
memory_alloc_token_list(struct memory *m, size_t tokens)
{
struct token_list *p;
p = alloc(m, sizeof(struct token_list) + (tokens * sizeof(struct token)), alignof(struct token_list));
return p;
}
void
memory_free_token_list(struct memory *m, struct token_list *p)
{
UNUSED_PARAMETER(m);
UNUSED_PARAMETER(p);
}
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