void accept_new_conns(const bool do_accept)
{
conn *next;
if (!is_listen_thread())
return;
for (next = listen_conn; next; next = next->next)
{
if (do_accept)
{
update_event(next, EV_READ | EV_PERSIST);
if (listen(next->sfd, 1024) != 0)
{
perror("listen");
}
}
else
{
update_event(next, 0);
if (listen(next->sfd, 0) != 0)
{
perror("listen");
}
}
}
}
static
void cproxy_on_new_config(void *data0, void *data1) {
work_collect *completion = data0;
proxy_main *m = completion->data;
assert(m);
kvpair_t *kvs = data1;
assert(kvs);
assert(is_listen_thread());
m->stat_configs++;
uint32_t max_config_ver = 0;
for (proxy *p = m->proxy_head; p != NULL; p = p->next) {
pthread_mutex_lock(&p->proxy_lock);
if (max_config_ver < p->config_ver) {
max_config_ver = p->config_ver;
}
pthread_mutex_unlock(&p->proxy_lock);
}
uint32_t new_config_ver = max_config_ver + 1;
if (settings.verbose > 2) {
fprintf(stderr, "conc new_config_ver %u\n", new_config_ver);
}
// The kvs key-multivalues look roughly like...
//
// pool-customer1-a
// svrname3
// pool-customer1-b
// svrname1
// svrname2
// svr-svrname1
// host=mc1.foo.net
// port=11211
// weight=1
// bucket=buck1
// usr=test1
// pwd=password
// svr-svrnameX
// host=mc2.foo.net
// port=11211
// behavior-customer1-a
// wait_queue_timeout=1000
// downstream_max=10
// behavior-customer1-b
// wait_queue_timeout=1000
// downstream_max=10
// pool_drain-customer1-b
// svrname1
// svrname3
// pools
// customer1-a
// customer1-b
// bindings
// 11221
// 11331
//
char **pools = get_key_values(kvs, "pools");
char **bindings = get_key_values(kvs, "bindings");
if (pools == NULL) {
goto fail;
}
int npools = 0;
int nbindings = 0;
while (pools && pools[npools])
npools++;
while (bindings && bindings[nbindings])
nbindings++;
if (nbindings > 0 &&
nbindings != npools) {
if (settings.verbose > 1) {
fprintf(stderr, "npools does not match nbindings\n");
}
goto fail;
}
char **behavior_kvs = get_key_values(kvs, "behavior");
if (behavior_kvs != NULL) {
// Update the default behavior.
//
proxy_behavior m_behavior = m->behavior;
for (int k = 0; behavior_kvs[k]; k++) {
char *bstr = trimstrdup(behavior_kvs[k]);
if (bstr != NULL) {
cproxy_parse_behavior_key_val_str(bstr, &m_behavior);
free(bstr);
}
}
m->behavior = m_behavior;
}
for (int i = 0; i < npools; i++) {
char *pool_name = skipspace(pools[i]);
if (pool_name != NULL &&
pool_name[0] != '\0') {
char buf[200];
snprintf(buf, sizeof(buf), "pool-%s", pool_name);
char **servers = get_key_values(kvs, trimstr(buf));
if (servers != NULL) {
// Parse proxy-level behavior.
//
proxy_behavior proxyb = m->behavior;
if (parse_kvs_behavior(kvs, "behavior", pool_name, &proxyb)) {
if (settings.verbose > 1) {
cproxy_dump_behavior(&proxyb,
"conc proxy_behavior", 1);
}
}
// The legacy way to get a port is through the bindings,
// but they're also available as an inheritable
// proxy_behavior field of port_listen.
//
int pool_port = proxyb.port_listen;
if (i < nbindings &&
bindings != NULL &&
bindings[i]) {
pool_port = atoi(skipspace(bindings[i]));
}
if (pool_port > 0) {
// Number of servers in this pool.
//
int s = 0;
while (servers[s])
s++;
if (s > 0) {
// Parse server-level behaviors, so we'll have an
// array of behaviors, one entry for each server.
//
proxy_behavior_pool behavior_pool = {
.base = proxyb,
.num = s,
.arr = calloc(s, sizeof(proxy_behavior))
};
if (behavior_pool.arr != NULL) {
char *config_str =
parse_kvs_servers("svr", pool_name, kvs,
servers, &behavior_pool);
if (config_str != NULL &&
config_str[0] != '\0') {
if (settings.verbose > 2) {
fprintf(stderr, "conc config: %s\n",
config_str);
}
cproxy_on_new_pool(m, pool_name, pool_port,
config_str, new_config_ver,
&behavior_pool);
free(config_str);
}
free(behavior_pool.arr);
} else {
if (settings.verbose > 1) {
fprintf(stderr, "ERROR: oom on re-config malloc\n");;
}
goto fail;
}
} else {
// Note: ignore when no servers for an existing pool.
// Because the config_ver won't be updated, we'll
// fall into the empty_pool code path below.
}
} else {
