share structures better, less (void *) casts when we can stay typed
This commit is contained in:
26
lalloc.c
26
lalloc.c
@ -23,7 +23,7 @@
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#include <err.h>
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#endif
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__RCSID("$MirOS: src/bin/mksh/lalloc.c,v 1.24 2016/02/24 01:44:46 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/lalloc.c,v 1.25 2016/02/24 02:08:39 tg Exp $");
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/* build with CPPFLAGS+= -DUSE_REALLOC_MALLOC=0 on ancient systems */
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#if defined(USE_REALLOC_MALLOC) && (USE_REALLOC_MALLOC == 0)
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@ -33,7 +33,7 @@ __RCSID("$MirOS: src/bin/mksh/lalloc.c,v 1.24 2016/02/24 01:44:46 tg Exp $");
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#endif
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static ALLOC_ITEM *findptr(ALLOC_ITEM **, char *, Area *);
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static struct lalloc_common *findptr(struct lalloc_common **, char *, Area *);
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#ifndef MKSH_ALLOC_CATCH_UNDERRUNS
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#define ALLOC_ISUNALIGNED(p) (((size_t)(p)) % ALLOC_SIZE)
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@ -45,7 +45,7 @@ static ALLOC_ITEM *findptr(ALLOC_ITEM **, char *, Area *);
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static void
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free_osimalloc(void *ptr)
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{
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struct lalloc *lp = ptr;
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struct lalloc_item *lp = ptr;
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if (munmap(lp, lp->len))
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err(1, "free_osimalloc");
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@ -54,7 +54,7 @@ free_osimalloc(void *ptr)
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static void *
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remalloc(void *ptr, size_t size)
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{
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struct lalloc *lp, *lold = ptr;
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struct lalloc_item *lp, *lold = ptr;
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size = (size + 4095) & ~(size_t)4095;
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@ -92,12 +92,12 @@ ainit(Area *ap)
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abort();
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}
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#endif
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/* area pointer is an ALLOC_ITEM, just the head of the list */
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/* area pointer and items share struct lalloc_common */
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ap->next = NULL;
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}
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static ALLOC_ITEM *
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findptr(ALLOC_ITEM **lpp, char *ptr, Area *ap)
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static struct lalloc_common *
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findptr(struct lalloc_common **lpp, char *ptr, Area *ap)
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{
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void *lp;
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@ -140,11 +140,11 @@ aresize2(void *ptr, size_t fac1, size_t fac2, Area *ap)
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void *
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aresize(void *ptr, size_t numb, Area *ap)
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{
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ALLOC_ITEM *lp = NULL;
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struct lalloc_common *lp = NULL;
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/* resizing (true) or newly allocating? */
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if (ptr != NULL) {
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ALLOC_ITEM *pp;
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struct lalloc_common *pp;
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pp = findptr(&lp, ptr, ap);
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pp->next = lp->next;
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@ -157,9 +157,9 @@ aresize(void *ptr, size_t numb, Area *ap)
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#endif
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)
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internal_errorf(Toomem, numb);
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/* this only works because Area is an ALLOC_ITEM */
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/* this only works because Area and ALLOC_ITEM share lalloc_common */
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lp->next = ap->next;
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ap->next = (void *)lp;
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ap->next = lp;
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/* return user item address */
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return ((char *)lp + ALLOC_SIZE);
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}
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@ -168,7 +168,7 @@ void
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afree(void *ptr, Area *ap)
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{
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if (ptr != NULL) {
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ALLOC_ITEM *lp, *pp;
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struct lalloc_common *lp, *pp;
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pp = findptr(&lp, ptr, ap);
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/* unhook */
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@ -181,7 +181,7 @@ afree(void *ptr, Area *ap)
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void
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afreeall(Area *ap)
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{
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Area *lp;
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struct lalloc_common *lp;
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/* traverse group (linked list) */
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while ((lp = ap->next) != NULL) {
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