/* Initializes a kvserver. Will return 0 if successful, or a negative error
* code if not. DIRNAME is the directory which should be used to store entries
* for this server. The server's cache will have NUM_SETS cache sets, each
* with ELEM_PER_SET elements. HOSTNAME and PORT indicate where SERVER will be
* made available for requests. USE_TPC indicates whether this server should
* use TPC logic (for PUTs and DELs) or not. */
int kvserver_init(kvserver_t *server, char *dirname, unsigned int num_sets,
unsigned int elem_per_set, unsigned int max_threads, const char *hostname,
int port, bool use_tpc) {
int ret;
ret = kvcache_init(&server->cache, num_sets, elem_per_set);
if (ret < 0) return ret;
ret = kvstore_init(&server->store, dirname);
if (ret < 0) return ret;
if (use_tpc) {
ret = tpclog_init(&server->log, dirname);
if (ret < 0) return ret;
}
server->hostname = malloc(strlen(hostname) + 1);
if (server->hostname == NULL)
return ENOMEM;
strcpy(server->hostname, hostname);
server->port = port;
server->use_tpc = use_tpc;
server->max_threads = max_threads;
server->handle = kvserver_handle;
// OUR CODE HERE
server->msg = NULL;
server->state = TPC_READY;
return 0;
}
/* Initializes a tpcfollower. Will return 0 if successful, or a negative error
* code if not. DIRNAME is the directory which should be used to store entries
* for this server. HOSTNAME and PORT indicate where SERVER will be
* made available for requests. */
int tpcfollower_init(tpcfollower_t *server, char *dirname, unsigned int max_threads,
const char *hostname, int port) {
int ret;
ret = kvstore_init(&server->store, dirname);
if (ret < 0)
return ret;
ret = tpclog_init(&server->log, dirname);
if (ret < 0)
return ret;
strcpy(server->hostname, hostname);
server->port = port;
server->max_threads = max_threads;
server->state = TPC_INIT;
/* Rebuild TPC state. */
tpcfollower_rebuild_state(server);
return 0;
}
