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Implemented debugging function rlookup() which you can call from gdb

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to see what resource does the address given as a parameter belong to.
This commit is contained in:
Martin Mares
2000-05-08 22:33:38 +00:00
parent 0521e4f684
commit c976342828
4 changed files with 83 additions and 7 deletions
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30
lib/mempool.c
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@ -14,6 +14,7 @@
struct lp_chunk {
struct lp_chunk *next;
unsigned int size;
byte data[0];
};
@ -25,14 +26,16 @@ struct linpool {
unsigned chunk_size, threshold, total, total_large;
};
void lp_free(resource *);
void lp_dump(resource *);
static void lp_free(resource *);
static void lp_dump(resource *);
static resource *lp_lookup(resource *, unsigned long);
static struct resclass lp_class = {
"LinPool",
sizeof(struct linpool),
lp_free,
lp_dump
lp_dump,
lp_lookup
};
linpool
@ -70,6 +73,7 @@ lp_alloc(linpool *m, unsigned size)
m->total_large += size;
c->next = m->first_large;
m->first_large = c->next;
c->size = size;
}
else
{
@ -87,6 +91,7 @@ lp_alloc(linpool *m, unsigned size)
*m->plast = c;
m->plast = &c->next;
c->next = NULL;
c->size = m->chunk_size;
}
m->ptr = c->data + size;
m->end = c->data + m->chunk_size;
@ -134,7 +139,7 @@ lp_flush(linpool *m)
m->total_large = 0;
}
void
static void
lp_free(resource *r)
{
linpool *m = (linpool *) r;
@ -152,7 +157,7 @@ lp_free(resource *r)
}
}
void
static void
lp_dump(resource *r)
{
linpool *m = (linpool *) r;
@ -171,3 +176,18 @@ lp_dump(resource *r)
m->total,
m->total_large);
}
static resource *
lp_lookup(resource *r, unsigned long a)
{
linpool *m = (linpool *) r;
struct lp_chunk *c;
for(c=m->first; c; c=c->next)
if ((unsigned long) c->data <= a && (unsigned long) c->data + c->size > a)
return r;
for(c=m->first_large; c; c=c->next)
if ((unsigned long) c->data <= a && (unsigned long) c->data + c->size > a)
return r;
return NULL;
}