static void FreeArenaList(PLArenaPool *pool, PLArena *head, PRBool reallyFree)
{
PLArena **ap, *a;
ap = &head->next;
a = *ap;
if (!a)
return;
do {
((a->base <= a->avail && a->avail <= a->limit)?((void)0):PR_Assert("a->base <= a->avail && a->avail <= a->limit","../../../mozilla/nsprpub/lib/ds/plarena.c",274));
a->avail = a->base;
((((a)->avail <= (a)->limit)?((void)0):PR_Assert("(a)->avail <= (a)->limit","../../../mozilla/nsprpub/lib/ds/plarena.c",276)), memset((void*)(a)->avail, 0xDA, (a)->limit - (a)->avail));
} while ((a = a->next) != 0);
a = *ap;
if (reallyFree) {
do {
*ap = a->next;
memset((void*)(a), 0xDA, (a)->limit - (PRUword)(a));
;
{ PR_Free(a); (a) = ((void *)0); };
} while ((a = *ap) != 0);
} else {
do {
ap = &(*ap)->next;
} while (*ap);
LockArena();
*ap = arena_freelist;
arena_freelist = a;
head->next = 0;
UnlockArena();
}
pool->current = head;
}
/* # 168 "../../../mozilla/nsprpub/lib/ds/plarena.c" */
__attribute__((visibility("default"))) void * PL_ArenaAllocate(PLArenaPool *pool, PRUint32 nb)
{
PLArena *a;
char *rp;
(((nb & pool->mask) == 0)?((void)0):PR_Assert("(nb & pool->mask) == 0","../../../mozilla/nsprpub/lib/ds/plarena.c",173));
nb = (PRUword)(((PRUword)(nb) + (pool)->mask) & ~(pool)->mask);
{
a = pool->current;
do {
if ( a->avail +nb <= a->limit ) {
pool->current = a;
rp = (char *)a->avail;
a->avail += nb;
return rp;
}
} while( ((void *)0) != (a = a->next) );
}
{
PLArena *p;
if ( PR_FAILURE == LockArena())
return(0);
for ( a = arena_freelist, p = ((void *)0); a != ((void *)0) ; p = a, a = a->next ) {
if ( a->base +nb <= a->limit ) {
if ( p == ((void *)0) )
arena_freelist = a->next;
else
p->next = a->next;
UnlockArena();
a->avail = a->base;
rp = (char *)a->avail;
a->avail += nb;
a->next = pool->current->next;
pool->current->next = a;
pool->current = a;
if ( ((void *)0) == pool->first.next )
pool->first.next = a;
return(rp);
}
}
UnlockArena();
}
{
PRUint32 sz = ((pool->arenasize)>(nb)?(pool->arenasize):(nb));
sz += sizeof *a + pool->mask;
a = (PLArena*)(PR_Malloc((sz)));
if ( ((void *)0) != a ) {
a->limit = (PRUword)a + sz;
a->base = a->avail = (PRUword)(((PRUword)(a + 1) + (pool)->mask) /*& ~(pool)->mask*/);
rp = (char *)a->avail;
a->avail += nb;
a->next = pool->current->next;
pool->current->next = a;
pool->current = a;
if ( ((void *)0) == pool->first.next )
pool->first.next = a;
;
;
return(rp);
}
}
return(((void *)0));
}
PR_IMPLEMENT(void *) PL_ArenaAllocate(PLArenaPool *pool, PRUint32 nb)
{
PLArena *a;
char *rp; /* returned pointer */
PR_ASSERT((nb & pool->mask) == 0);
nb = (PRUword)PL_ARENA_ALIGN(pool, nb); /* force alignment */
/* attempt to allocate from arenas at pool->current */
{
a = pool->current;
do {
if ( a->avail +nb <= a->limit ) {
pool->current = a;
rp = (char *)a->avail;
a->avail += nb;
return rp;
}
} while( NULL != (a = a->next) );
}
/* attempt to allocate from arena_freelist */
{
PLArena *p; /* previous pointer, for unlinking from freelist */
/* lock the arena_freelist. Make access to the freelist MT-Safe */
if ( PR_FAILURE == LockArena())
return(0);
for ( a = arena_freelist, p = NULL; a != NULL ; p = a, a = a->next ) {
if ( a->base +nb <= a->limit ) {
if ( p == NULL )
arena_freelist = a->next;
else
p->next = a->next;
UnlockArena();
a->avail = a->base;
rp = (char *)a->avail;
a->avail += nb;
/* the newly allocated arena is linked after pool->current
* and becomes pool->current */
a->next = pool->current->next;
pool->current->next = a;
pool->current = a;
if ( NULL == pool->first.next )
pool->first.next = a;
return(rp);
}
}
UnlockArena();
}
/* attempt to allocate from the heap */
{
PRUint32 sz = PR_MAX(pool->arenasize, nb);
sz += sizeof *a + pool->mask; /* header and alignment slop */
a = (PLArena*)PR_MALLOC(sz);
if ( NULL != a ) {
a->limit = (PRUword)a + sz;
a->base = a->avail = (PRUword)PL_ARENA_ALIGN(pool, a + 1);
rp = (char *)a->avail;
a->avail += nb;
/* the newly allocated arena is linked after pool->current
* and becomes pool->current */
a->next = pool->current->next;
pool->current->next = a;
pool->current = a;
if ( NULL == pool->first.next )
pool->first.next = a;
PL_COUNT_ARENA(pool,++);
COUNT(pool, nmallocs);
return(rp);
}
}
