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choose randomly from running dirservers, not always the first one

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svn:r881
This commit is contained in:
Roger Dingledine 2003-12-03 10:39:27 +00:00
parent 63f81bddae
commit 4f2d556508
1 changed files with 30 additions and 13 deletions
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43
src/or/routers.c
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@ -50,31 +50,48 @@ void router_retry_connections(void) {
}
routerinfo_t *router_pick_directory_server(void) {
/* pick the first running router with a positive dir_port */
int i;
/* pick a random running router with a positive dir_port */
int i,j;
routerinfo_t *router, *dirserver=NULL;
int num_dirservers=0;
if(!directory)
return NULL;
for(i=0;i<directory->n_routers;i++) {
router = directory->routers[i];
if(router->dir_port > 0 && router->is_running)
return router;
num_dirservers++;
}
log_fn(LOG_INFO,"No dirservers are reachable. Trying them all again.");
/* no running dir servers found? go through and mark them all as up,
* and we'll cycle through the list again. */
for(i=0;i<directory->n_routers;i++) {
if(!num_dirservers) {
log_fn(LOG_INFO,"No dirservers are reachable. Trying them all again.");
/* no running dir servers found? go through and mark them all as up,
* and we'll cycle through the list again. */
for(i=0;i<directory->n_routers;i++) {
router = directory->routers[i];
if(router->dir_port > 0) {
router->is_running = 1;
dirserver = router;
}
}
return dirserver;
}
j = crypto_pseudo_rand_int(num_dirservers);
for (i=0;i<directory->n_routers;i++) {
router = directory->routers[i];
if(router->dir_port > 0) {
router->is_running = 1;
dirserver = router;
if (router->dir_port > 0 && router->is_running) {
if (j)
--j;
else {
log_fn(LOG_DEBUG, "Chose server '%s'", router->nickname);
return router;
}
}
}
return dirserver;
assert(0);
return NULL;
}
routerinfo_t *router_pick_randomly_from_running(void) {