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Avoid the overhead of creating and grabbing a uuid for

Browse Source 
the balancer nonce if we're never going to use it.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1383490 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jim Jagielski
2012-09-11 17:39:32 +00:00
parent 29e93a99b2
commit beba00de80
2 changed files with 19 additions and 11 deletions
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27
modules/proxy/proxy_util.c
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@@ -1109,6 +1109,8 @@ PROXY_DECLARE(char *) ap_proxy_update_balancer(apr_pool_t *p,
return NULL;
}
#define PROXY_UNSET_NONCE '\n'
PROXY_DECLARE(char *) ap_proxy_define_balancer(apr_pool_t *p,
proxy_balancer **balancer,
proxy_server_conf *conf,
@@ -1116,9 +1118,7 @@ PROXY_DECLARE(char *) ap_proxy_define_balancer(apr_pool_t *p,
const char *alias,
int do_malloc)
{
char nonce[APR_UUID_FORMATTED_LENGTH + 1];
proxy_balancer_method *lbmethod;
apr_uuid_t uuid;
proxy_balancer_shared *bshared;
char *c, *q, *uri = apr_pstrdup(p, url);
const char *sname;
@@ -1173,14 +1173,7 @@ PROXY_DECLARE(char *) ap_proxy_define_balancer(apr_pool_t *p,
(*balancer)->hash = bshared->hash;
bshared->forcerecovery = 1;
/* Retrieve a UUID and store the nonce for the lifetime of
* the process. */
apr_uuid_get(&uuid);
apr_uuid_format(nonce, &uuid);
if (PROXY_STRNCPY(bshared->nonce, nonce) != APR_SUCCESS) {
return apr_psprintf(p, "balancer nonce (%s) too long", nonce);
}
*bshared->nonce = PROXY_UNSET_NONCE; /* impossible valid input */
(*balancer)->s = bshared;
(*balancer)->sconf = conf;
@@ -1195,6 +1188,7 @@ PROXY_DECLARE(apr_status_t) ap_proxy_share_balancer(proxy_balancer *balancer,
proxy_balancer_shared *shm,
int i)
{
apr_status_t rv = APR_SUCCESS;
proxy_balancer_method *lbmethod;
if (!shm || !balancer->s)
return APR_EINVAL;
@@ -1208,7 +1202,18 @@ PROXY_DECLARE(apr_status_t) ap_proxy_share_balancer(proxy_balancer *balancer,
lbmethod = ap_lookup_provider(PROXY_LBMETHOD, balancer->s->lbpname, "0");
if (lbmethod)
balancer->lbmethod = lbmethod;
return APR_SUCCESS;
if (*balancer->s->nonce == PROXY_UNSET_NONCE) {
char nonce[APR_UUID_FORMATTED_LENGTH + 1];
apr_uuid_t uuid;
/* Retrieve a UUID and store the nonce for the lifetime of
* the process.
*/
apr_uuid_get(&uuid);
apr_uuid_format(nonce, &uuid);
rv = PROXY_STRNCPY(balancer->s->nonce, nonce);
}
return rv;
}
PROXY_DECLARE(apr_status_t) ap_proxy_initialize_balancer(proxy_balancer *balancer, server_rec *s, apr_pool_t *p)