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minor code refactoring
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hyung-hwan
2025-08-02 14:50:38 +09:00
parent 2c63c56e0e
commit 17b0dfcee3
4 changed files with 84 additions and 81 deletions
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34
lib/xma.c
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@ -167,28 +167,28 @@ static HAWK_INLINE hawk_oow_t szlog2 (hawk_oow_t n)
#endif
#if HAWK_SIZEOF_OOW_T >= 64
if ((n & (~(hawk_oow_t)0 << (BITS-128))) == 0) { x -= 256; n <<= 256; }
if ((n & (~(hawk_oow_t)0 << (BITS - 128))) == 0) { x -= 256; n <<= 256; }
#endif
#if HAWK_SIZEOF_OOW_T >= 32
if ((n & (~(hawk_oow_t)0 << (BITS-128))) == 0) { x -= 128; n <<= 128; }
if ((n & (~(hawk_oow_t)0 << (BITS - 128))) == 0) { x -= 128; n <<= 128; }
#endif
#if HAWK_SIZEOF_OOW_T >= 16
if ((n & (~(hawk_oow_t)0 << (BITS-64))) == 0) { x -= 64; n <<= 64; }
if ((n & (~(hawk_oow_t)0 << (BITS - 64))) == 0) { x -= 64; n <<= 64; }
#endif
#if HAWK_SIZEOF_OOW_T >= 8
if ((n & (~(hawk_oow_t)0 << (BITS-32))) == 0) { x -= 32; n <<= 32; }
if ((n & (~(hawk_oow_t)0 << (BITS - 32))) == 0) { x -= 32; n <<= 32; }
#endif
#if HAWK_SIZEOF_OOW_T >= 4
if ((n & (~(hawk_oow_t)0 << (BITS-16))) == 0) { x -= 16; n <<= 16; }
if ((n & (~(hawk_oow_t)0 << (BITS - 16))) == 0) { x -= 16; n <<= 16; }
#endif
#if HAWK_SIZEOF_OOW_T >= 2
if ((n & (~(hawk_oow_t)0 << (BITS-8))) == 0) { x -= 8; n <<= 8; }
if ((n & (~(hawk_oow_t)0 << (BITS - 8))) == 0) { x -= 8; n <<= 8; }
#endif
#if HAWK_SIZEOF_OOW_T >= 1
if ((n & (~(hawk_oow_t)0 << (BITS-4))) == 0) { x -= 4; n <<= 4; }
if ((n & (~(hawk_oow_t)0 << (BITS - 4))) == 0) { x -= 4; n <<= 4; }
#endif
if ((n & (~(hawk_oow_t)0 << (BITS-2))) == 0) { x -= 2; n <<= 2; }
if ((n & (~(hawk_oow_t)0 << (BITS-1))) == 0) { x -= 1; }
if ((n & (~(hawk_oow_t)0 << (BITS - 2))) == 0) { x -= 2; n <<= 2; }
if ((n & (~(hawk_oow_t)0 << (BITS - 1))) == 0) { x -= 1; }
return x;
#undef BITS
@ -196,8 +196,24 @@ static HAWK_INLINE hawk_oow_t szlog2 (hawk_oow_t n)
static HAWK_INLINE hawk_oow_t getxfi (hawk_xma_t* xma, hawk_oow_t size)
{
/* if the aligned size is below the first threshold(FIXED)
* the slot to the xma->xfree field is the aligned size itself.
* For example, assuming ALIGN is 8, size 117 produces xfi 13. ((117 / 8) - 1) */
hawk_oow_t xfi = ((size) / ALIGN) - 1;
/* If the caculated index is greater than or equal to the threshold,
* each slot in the xfree field will span across a wider range of sizes.
* Roughly, like this. but all these values are dependent on ALIGN.
* Words-1 Size XFI
* 32~62 264~511 => 32
* 63~126 512~1023 => 33
* 127~254 1024~2047 => 34
* 255~510 2048~4095 => 35
* ....
*/
if (xfi >= FIXED) xfi = szlog2(size) - (xma)->bdec + FIXED;
/* The very large size is place at the last index */
if (xfi > XFIMAX(xma)) xfi = XFIMAX(xma);
return xfi;
}