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changed hawk_xma_free() a bit

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hyung-hwan 2020-11-03 12:59:28 +00:00
parent 4323b0b7ce
commit 105bbf5429
1 changed files with 17 additions and 15 deletions
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32
hawk/lib/xma.c
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@ -349,8 +349,8 @@ static hawk_xma_fblk_t* alloc_from_freelist (hawk_xma_t* xma, hawk_oow_t xfi, ha
/* shrink the size of the 'cand' block */ /* shrink the size of the 'cand' block */
cand->size = size; cand->size = size;
/* let 'tmp' point to the remaining part */ /* let 'y' point to the remaining part */
y = next_mblk(cand); /* get the next adjacent block */ y = next_mblk(cand);
/* initialize some fields */ /* initialize some fields */
y->free = 1; y->free = 1;
@ -647,13 +647,16 @@ void hawk_xma_free (hawk_xma_t* xma, void* b)
{ {
hawk_xma_mblk_t* blk = (hawk_xma_mblk_t*)USR_TO_SYS(b); hawk_xma_mblk_t* blk = (hawk_xma_mblk_t*)USR_TO_SYS(b);
hawk_xma_mblk_t* x, * y; hawk_xma_mblk_t* x, * y;
hawk_oow_t org_blk_size;
DBG_VERIFY (xma, "free start"); DBG_VERIFY (xma, "free start");
org_blk_size = blk->size;
#if defined(HAWK_XMA_ENABLE_STAT) #if defined(HAWK_XMA_ENABLE_STAT)
/* update statistical variables */ /* update statistical variables */
xma->stat.nused--; xma->stat.nused--;
xma->stat.alloc -= blk->size; xma->stat.alloc -= org_blk_size;
#endif #endif
x = prev_mblk(blk); x = prev_mblk(blk);
@ -678,7 +681,7 @@ void hawk_xma_free (hawk_xma_t* xma, void* b)
*/ */
hawk_xma_mblk_t* z = next_mblk(y); hawk_xma_mblk_t* z = next_mblk(y);
hawk_oow_t ns = MBLKHDRSIZE + blk->size + MBLKHDRSIZE; hawk_oow_t ns = MBLKHDRSIZE + org_blk_size + MBLKHDRSIZE;
hawk_oow_t bs = ns + y->size; hawk_oow_t bs = ns + y->size;
detach_from_freelist (xma, (hawk_xma_fblk_t*)x); detach_from_freelist (xma, (hawk_xma_fblk_t*)x);
@ -720,10 +723,6 @@ void hawk_xma_free (hawk_xma_t* xma, void* b)
*/ */
hawk_xma_mblk_t* z = next_mblk(y); hawk_xma_mblk_t* z = next_mblk(y);
#if defined(HAWK_XMA_ENABLE_STAT)
xma->stat.avail += blk->size + MBLKHDRSIZE;
#endif
/* detach y from the free list */ /* detach y from the free list */
detach_from_freelist (xma, (hawk_xma_fblk_t*)y); detach_from_freelist (xma, (hawk_xma_fblk_t*)y);
@ -737,6 +736,10 @@ void hawk_xma_free (hawk_xma_t* xma, void* b)
/* attach blk to the free list */ /* attach blk to the free list */
attach_to_freelist (xma, (hawk_xma_fblk_t*)blk); attach_to_freelist (xma, (hawk_xma_fblk_t*)blk);
#if defined(HAWK_XMA_ENABLE_STAT)
xma->stat.avail += org_blk_size + MBLKHDRSIZE;
#endif
} }
else if ((hawk_uint8_t*)x >= xma->start && x->free) else if ((hawk_uint8_t*)x >= xma->start && x->free)
{ {
@ -754,28 +757,27 @@ void hawk_xma_free (hawk_xma_t* xma, void* b)
* | X | Y | * | X | Y |
* +-------------------------+------------+ * +-------------------------+------------+
*/ */
#if defined(HAWK_XMA_ENABLE_STAT)
xma->stat.avail += MBLKHDRSIZE + blk->size;
#endif
detach_from_freelist (xma, (hawk_xma_fblk_t*)x); detach_from_freelist (xma, (hawk_xma_fblk_t*)x);
x->size += MBLKHDRSIZE + blk->size; x->size += MBLKHDRSIZE + org_blk_size;
HAWK_ASSERT (y == next_mblk(x)); HAWK_ASSERT (y == next_mblk(x));
if ((hawk_uint8_t*)y < xma->end) y->prev_size = x->size; if ((hawk_uint8_t*)y < xma->end) y->prev_size = x->size;
attach_to_freelist (xma, (hawk_xma_fblk_t*)x); attach_to_freelist (xma, (hawk_xma_fblk_t*)x);
#if defined(HAWK_XMA_ENABLE_STAT)
xma->stat.avail += MBLKHDRSIZE + org_blk_size;
#endif
} }
else else
{ {
blk->free = 1; blk->free = 1;
attach_to_freelist (xma, (hawk_xma_fblk_t*)blk); attach_to_freelist (xma, (hawk_xma_fblk_t*)blk);
#if defined(HAWK_XMA_ENABLE_STAT) #if defined(HAWK_XMA_ENABLE_STAT)
xma->stat.nfree++; xma->stat.nfree++;
xma->stat.avail += blk->size; xma->stat.avail += org_blk_size;
#endif #endif
} }