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changed moo_xma_free() a bit

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hyunghwan.chung
2020-11-03 13:00:42 +00:00
parent 9bb589a512
commit a17b12978a
1 changed files with 18 additions and 15 deletions
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33
moo/lib/xma.c
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@ -353,8 +353,8 @@ static moo_xma_fblk_t* alloc_from_freelist (moo_xma_t* xma, moo_oow_t xfi, moo_o
/* shrink the size of the 'cand' block */
cand->size = size;
/* let 'tmp' point to the remaining part */
y = next_mblk(cand); /* get the next adjacent block */
/* let 'y' point to the remaining part */
y = next_mblk(cand);
/* initialize some fields */
y->free = 1;
@ -651,13 +651,16 @@ void moo_xma_free (moo_xma_t* xma, void* b)
{
moo_xma_mblk_t* blk = (moo_xma_mblk_t*)USR_TO_SYS(b);
moo_xma_mblk_t* x, * y;
moo_oow_t org_blk_size;
DBG_VERIFY (xma, "free start");
org_blk_size = blk->size;
#if defined(MOO_XMA_ENABLE_STAT)
/* update statistical variables */
xma->stat.nused--;
xma->stat.alloc -= blk->size;
xma->stat.alloc -= org_blk_size;
#endif
x = prev_mblk(blk);
@ -682,7 +685,7 @@ void moo_xma_free (moo_xma_t* xma, void* b)
*/
moo_xma_mblk_t* z = next_mblk(y);
moo_oow_t ns = MBLKHDRSIZE + blk->size + MBLKHDRSIZE;
moo_oow_t ns = MBLKHDRSIZE + org_blk_size + MBLKHDRSIZE;
moo_oow_t bs = ns + y->size;
detach_from_freelist (xma, (moo_xma_fblk_t*)x);
@ -724,10 +727,6 @@ void moo_xma_free (moo_xma_t* xma, void* b)
*/
moo_xma_mblk_t* z = next_mblk(y);
#if defined(MOO_XMA_ENABLE_STAT)
xma->stat.avail += blk->size + MBLKHDRSIZE;
#endif
/* detach y from the free list */
detach_from_freelist (xma, (moo_xma_fblk_t*)y);
@ -741,6 +740,10 @@ void moo_xma_free (moo_xma_t* xma, void* b)
/* attach blk to the free list */
attach_to_freelist (xma, (moo_xma_fblk_t*)blk);
#if defined(MOO_XMA_ENABLE_STAT)
xma->stat.avail += org_blk_size + MBLKHDRSIZE;
#endif
}
else if ((moo_uint8_t*)x >= xma->start && x->free)
{
@ -758,27 +761,27 @@ void moo_xma_free (moo_xma_t* xma, void* b)
* | X | Y |
* +-------------------------+------------+
*/
#if defined(MOO_XMA_ENABLE_STAT)
xma->stat.avail += MBLKHDRSIZE + blk->size;
#endif
detach_from_freelist (xma, (moo_xma_fblk_t*)x);
x->size += MBLKHDRSIZE + blk->size;
x->size += MBLKHDRSIZE + org_blk_size;
assert (y == next_mblk(x));
if ((moo_uint8_t*)y < xma->end) y->prev_size = x->size;
attach_to_freelist (xma, (moo_xma_fblk_t*)x);
#if defined(MOO_XMA_ENABLE_STAT)
xma->stat.avail += MBLKHDRSIZE + org_blk_size;
#endif
}
else
{
blk->free = 1;
attach_to_freelist (xma, (moo_xma_fblk_t*)blk);
#if defined(MOO_XMA_ENABLE_STAT)
xma->stat.nfree++;
xma->stat.avail += blk->size;
xma->stat.avail += org_blk_size;
#endif
}