summaryrefslogtreecommitdiff
path: root/lib/resource.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/resource.c')
-rw-r--r--lib/resource.c91
1 files changed, 26 insertions, 65 deletions
diff --git a/lib/resource.c b/lib/resource.c
index e80b315b..a179afe3 100644
--- a/lib/resource.c
+++ b/lib/resource.c
@@ -2,6 +2,7 @@
* BIRD Resource Manager
*
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
+ * (c) 2021 Maria Matejka <mq@jmq.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
@@ -31,22 +32,13 @@
struct pool {
resource r;
list inside;
- struct pool_pages *pages;
const char *name;
};
-struct pool_pages {
- uint free;
- uint used;
- void *ptr[0];
-};
-
-#define POOL_PAGES_MAX ((page_size - sizeof(struct pool_pages)) / sizeof (void *))
-
static void pool_dump(resource *);
static void pool_free(resource *);
static resource *pool_lookup(resource *, unsigned long);
-static size_t pool_memsize(resource *P);
+static struct resmem pool_memsize(resource *P);
static struct resclass pool_class = {
"Pool",
@@ -59,9 +51,6 @@ static struct resclass pool_class = {
pool root_pool;
-void *alloc_sys_page(void);
-void free_sys_page(void *);
-
static int indent;
/**
@@ -94,14 +83,6 @@ pool_free(resource *P)
xfree(r);
r = rr;
}
-
- if (p->pages)
- {
- ASSERT_DIE(!p->pages->used);
- for (uint i=0; i<p->pages->free; i++)
- free_sys_page(p->pages->ptr[i]);
- free_sys_page(p->pages);
- }
}
static void
@@ -117,18 +98,22 @@ pool_dump(resource *P)
indent -= 3;
}
-static size_t
+static struct resmem
pool_memsize(resource *P)
{
pool *p = (pool *) P;
resource *r;
- size_t sum = sizeof(pool) + ALLOC_OVERHEAD;
+ struct resmem sum = {
+ .effective = 0,
+ .overhead = sizeof(pool) + ALLOC_OVERHEAD,
+ };
WALK_LIST(r, p->inside)
- sum += rmemsize(r);
-
- if (p->pages)
- sum += page_size * (p->pages->used + p->pages->free + 1);
+ {
+ struct resmem add = rmemsize(r);
+ sum.effective += add.effective;
+ sum.overhead += add.overhead;
+ }
return sum;
}
@@ -216,14 +201,17 @@ rdump(void *res)
debug("NULL\n");
}
-size_t
+struct resmem
rmemsize(void *res)
{
resource *r = res;
if (!r)
- return 0;
+ return (struct resmem) {};
if (!r->class->memsize)
- return r->class->size + ALLOC_OVERHEAD;
+ return (struct resmem) {
+ .effective = r->class->size - sizeof(resource),
+ .overhead = ALLOC_OVERHEAD + sizeof(resource),
+ };
return r->class->memsize(r);
}
@@ -282,9 +270,12 @@ rlookup(unsigned long a)
void
resource_init(void)
{
+ resource_sys_init();
+
root_pool.r.class = &pool_class;
root_pool.name = "Root";
init_list(&root_pool.inside);
+ tmp_init(&root_pool);
}
/**
@@ -328,11 +319,14 @@ mbl_lookup(resource *r, unsigned long a)
return NULL;
}
-static size_t
+static struct resmem
mbl_memsize(resource *r)
{
struct mblock *m = (struct mblock *) r;
- return ALLOC_OVERHEAD + sizeof(struct mblock) + m->size;
+ return (struct resmem) {
+ .effective = m->size,
+ .overhead = ALLOC_OVERHEAD + sizeof(struct mblock),
+ };
}
static struct resclass mb_class = {
@@ -448,39 +442,6 @@ mb_free(void *m)
rfree(b);
}
-void *
-alloc_page(pool *p)
-{
- if (!p->pages)
- {
- p->pages = alloc_sys_page();
- p->pages->free = 0;
- p->pages->used = 1;
- }
- else
- p->pages->used++;
-
- if (p->pages->free)
- {
- void *ptr = p->pages->ptr[--p->pages->free];
- bzero(ptr, page_size);
- return ptr;
- }
- else
- return alloc_sys_page();
-}
-
-void
-free_page(pool *p, void *ptr)
-{
- ASSERT_DIE(p->pages);
- p->pages->used--;
-
- if (p->pages->free >= POOL_PAGES_MAX)
- return free_sys_page(ptr);
- else
- p->pages->ptr[p->pages->free++] = ptr;
-}
#define STEP_UP(x) ((x) + (x)/2 + 4)