static int parse_ketama_config(VBUCKET_CONFIG_HANDLE vb, cJSON *config)
{
cJSON *json, *node, *hostname;
char *buf;
int ii;
json = cJSON_GetObjectItem(config, "nodes");
if (json == NULL || json->type != cJSON_Array) {
vb->errmsg = strdup("Expected array for nodes");
return -1;
}
vb->num_servers = cJSON_GetArraySize(json);
if (vb->num_servers == 0) {
vb->errmsg = strdup("Empty serverList");
return -1;
}
vb->servers = calloc(vb->num_servers, sizeof(struct server_st));
for (ii = 0; ii < vb->num_servers; ++ii) {
node = cJSON_GetArrayItem(json, ii);
if (node == NULL || node->type != cJSON_Object) {
vb->errmsg = strdup("Expected object for nodes array item");
return -1;
}
buf = calloc(MAX_AUTORITY_SIZE, sizeof(char));
if (buf == NULL) {
vb->errmsg = strdup("Failed to allocate storage for node authority");
return -1;
}
if (get_node_authority(vb, node, &buf, MAX_AUTORITY_SIZE) < 0) {
return -1;
}
vb->servers[ii].authority = buf;
hostname = cJSON_GetObjectItem(node, "hostname");
if (hostname == NULL || hostname->type != cJSON_String) {
vb->errmsg = strdup("Expected string for node's hostname");
return -1;
}
buf = strdup(hostname->valuestring);
if (buf == NULL) {
vb->errmsg = strdup("Failed to allocate storage for hostname string");
return -1;
}
buf = substitute_localhost_marker(vb, buf);
if (buf == NULL) {
vb->errmsg = strdup("Failed to allocate storage for hostname string during $HOST substitution");
return -1;
}
vb->servers[ii].rest_api_authority = buf;
}
qsort(vb->servers, vb->num_servers, sizeof(struct server_st), server_cmp);
update_ketama_continuum(vb);
return 0;
}
static VBUCKET_CONFIG_HANDLE parse_ketama_config(VBUCKET_CONFIG_HANDLE vb, cJSON *config)
{
cJSON *json, *node;
char *buf;
int ii;
json = cJSON_GetObjectItem(config, "nodes");
if (json == NULL || json->type != cJSON_Array) {
errstr = "Expected array for nodes";
return NULL;
}
vb->num_servers = cJSON_GetArraySize(json);
if (vb->num_servers == 0) {
errstr = "Empty serverList";
return NULL;
}
vb->servers = calloc(vb->num_servers, sizeof(struct server_st));
for (ii = 0; ii < vb->num_servers; ++ii) {
node = cJSON_GetArrayItem(json, ii);
if (node == NULL || node->type != cJSON_Object) {
errstr = "Expected object for nodes array item";
return NULL;
}
buf = calloc(MAX_AUTORITY_SIZE, sizeof(char));
if (buf == NULL) {
errstr = "Failed to allocate storage for node authority";
return NULL;
}
if (get_node_authority(node, buf, MAX_AUTORITY_SIZE) < 0) {
return NULL;
}
vb->servers[ii].authority = buf;
}
update_ketama_continuum(vb);
return vb;
}
static int lookup_server_struct(struct vbucket_config_st *vb, cJSON *c) {
char *authority = NULL;
int idx = -1, ii;
authority = calloc(MAX_AUTORITY_SIZE, sizeof(char));
if (authority == NULL) {
errstr = "Failed to allocate storage for authority string";
return -1;
}
if (get_node_authority(c, authority, MAX_AUTORITY_SIZE) < 0) {
free(authority);
return -1;
}
for (ii = 0; ii < vb->num_servers; ++ii) {
if (strcmp(vb->servers[ii].authority, authority) == 0) {
idx = ii;
break;
}
}
free(authority);
return idx;
}