INNER CODE UNIT · C
p
lh3/ksw2 · kalloc.c:90
p = (size_t*)ap - 1; /* *p is the size of the current block */
/* Find the pointer that points to the block to be freed. The following loop can stop on two conditions:
*
* a) "p>q && p<q->ptr": @------@++++++++@+++++++@------- @---------------@+++++++@-------
* (can also be in | | | -> | |
* two cores) q p q->ptr q q->ptr
*
* @-------- @+++++++++@-------- @-------- @------------------
* | | | -> | |
* q p q->ptr q q->ptr
*
* b) "q>=q->ptr && (p>q || p<q->ptr)": @-------@+++++ @--------@+++++++ @-------@+++++ @----------------
* | | | -> | |
* q->ptr q p q->ptr q
*
* @+++++++@----- @++++++++@------- @------------- @++++++++@-------
* | | | -> | |
* p q->ptr q q->ptr q