source: src/router/quagga/nhrpd/reqid.c @ 31640

Last change on this file since 31640 was 31640, checked in by brainslayer, 2 weeks ago

update quagga

File size: 1.1 KB
Line 
1#include "zebra.h"
2#include "hash.h"
3#include "nhrpd.h"
4
5static unsigned int nhrp_reqid_key(void *data)
6{
7        struct nhrp_reqid *r = data;
8        return r->request_id;
9}
10
11static int nhrp_reqid_cmp(const void *data, const void *key)
12{
13        const struct nhrp_reqid *a = data, *b = key;
14        return a->request_id == b->request_id;
15}
16
17uint32_t nhrp_reqid_alloc(struct nhrp_reqid_pool *p, struct nhrp_reqid *r, void (*cb)(struct nhrp_reqid *, void *))
18{
19        if (!p->reqid_hash) {
20                p->reqid_hash = hash_create(nhrp_reqid_key, nhrp_reqid_cmp);
21                p->next_request_id = 1;
22        }
23
24        if (r->cb != cb) {
25                r->request_id = p->next_request_id;
26                if (++p->next_request_id == 0) p->next_request_id = 1;
27                r->cb = cb;
28                hash_get(p->reqid_hash, r, hash_alloc_intern);
29        }
30        return r->request_id;
31}
32
33void nhrp_reqid_free(struct nhrp_reqid_pool *p, struct nhrp_reqid *r)
34{
35        if (r->cb) {
36                hash_release(p->reqid_hash, r);
37                r->cb = NULL;
38        }
39}
40
41struct nhrp_reqid *nhrp_reqid_lookup(struct nhrp_reqid_pool *p, uint32_t reqid)
42{
43        struct nhrp_reqid key;
44        if (!p->reqid_hash) return 0;
45        key.request_id = reqid;
46        return hash_lookup(p->reqid_hash, &key);
47}
48
49
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