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#include <uwsgi.h>
extern struct uwsgi_server uwsgi;
static int legion_action_cache_fetch_from_legion(struct uwsgi_legion *ul, char *arg) {
uwsgi_log("[legion-cache-fetch] getting cache '%s' dump from legion '%s' nodes\n", arg, ul->legion);
struct uwsgi_cache *uc = uwsgi_cache_by_name(arg);
if (!uc) {
uwsgi_log("[legion-cache-fetch] cannot sync, cache '%s' not found\n", arg);
return 1;
}
struct uwsgi_string_list *dump_from_nodes = NULL;
uwsgi_rlock(ul->lock);
struct uwsgi_legion_node *legion_nodes = ul->nodes_head;
while (legion_nodes) {
char *dump_socket = NULL;
if (uwsgi_kvlist_parse(legion_nodes->scroll, legion_nodes->scroll_len, ',', '=',
"dump-socket", &dump_socket,
NULL)) {
uwsgi_log("[legion-cache-fetch] cannot sync from %.*s, cache socket address not found in legion scroll: %.*s\n",
legion_nodes->name_len, legion_nodes->name, legion_nodes->scroll_len, legion_nodes->scroll);
}
else {
if (dump_socket) {
uwsgi_string_new_list(&dump_from_nodes, dump_socket);
}
else {
uwsgi_log("[legion-cache-fetch] cannot sync from %.*s, cache socket address not found in legion scroll: %.*s\n",
legion_nodes->name_len, legion_nodes->name, legion_nodes->scroll_len, legion_nodes->scroll);
}
}
legion_nodes = legion_nodes->next;
}
// update uc->sync_nodes list
struct uwsgi_string_list *usl = uc->sync_nodes;
struct uwsgi_string_list *next;
while (usl) {
next = usl->next;
free(usl->value);
free(usl);
usl = next;
}
uwsgi_rwunlock(ul->lock);
uwsgi_rlock(uc->lock);
uc->sync_nodes = dump_from_nodes;
uwsgi_rwunlock(uc->lock);
// call sync
uwsgi_cache_sync_from_nodes(uc);
return 0;
}
static void legion_cache_register() {
uwsgi_legion_action_register("legion-cache-fetch", legion_action_cache_fetch_from_legion);
}
struct uwsgi_plugin legion_cache_fetch_plugin = {
.name = "legion_cache_fetch",
.on_load = legion_cache_register,
};
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