Ejemplo n.º 1
0
/* Schedules 'msg' to be sent on 'rpc' and returns 'rpc''s status (as with
 * jsonrpc_get_status()).
 *
 * If 'msg' cannot be sent immediately, it is appended to a buffer.  The caller
 * is responsible for ensuring that the amount of buffered data is somehow
 * limited.  (jsonrpc_get_backlog() returns the amount of data currently
 * buffered in 'rpc'.)
 *
 * Always takes ownership of 'msg', regardless of success. */
int
jsonrpc_send(struct jsonrpc *rpc, struct jsonrpc_msg *msg)
{
    struct ofpbuf *buf;
    struct json *json;
    size_t length;
    char *s;

    if (rpc->status) {
        jsonrpc_msg_destroy(msg);
        return rpc->status;
    }

    jsonrpc_log_msg(rpc, "send", msg);

    json = jsonrpc_msg_to_json(msg);
    s = json_to_string(json, 0);
    length = strlen(s);
    json_destroy(json);

    buf = xmalloc(sizeof *buf);
    ofpbuf_use(buf, s, length);
    ofpbuf_set_size(buf, length);
    list_push_back(&rpc->output, &buf->list_node);
    rpc->output_count++;
    rpc->backlog += length;

    if (rpc->output_count >= 50) {
        VLOG_INFO_RL(&rl, "excessive sending backlog, jsonrpc: %s, num of"
                     " msgs: %"PRIuSIZE", backlog: %"PRIuSIZE".", rpc->name,
                     rpc->output_count, rpc->backlog);
    }

    if (rpc->backlog == length) {
        jsonrpc_run(rpc);
    }
    return rpc->status;
}
Ejemplo n.º 2
0
/* Schedules 'msg' to be sent on 'rpc' and returns 'rpc''s status (as with
 * jsonrpc_get_status()).
 *
 * If 'msg' cannot be sent immediately, it is appended to a buffer.  The caller
 * is responsible for ensuring that the amount of buffered data is somehow
 * limited.  (jsonrpc_get_backlog() returns the amount of data currently
 * buffered in 'rpc'.)
 *
 * Always takes ownership of 'msg', regardless of success. */
int
jsonrpc_send(struct jsonrpc *rpc, struct jsonrpc_msg *msg)
{
    struct ofpbuf *buf;
    struct json *json;
    struct ds ds = DS_EMPTY_INITIALIZER;
    size_t length;

    if (rpc->status) {
        jsonrpc_msg_destroy(msg);
        return rpc->status;
    }

    jsonrpc_log_msg(rpc, "send", msg);

    json = jsonrpc_msg_to_json(msg);
    json_to_ds(json, 0, &ds);
    length = ds.length;
    json_destroy(json);

    buf = xmalloc(sizeof *buf);
    ofpbuf_use_ds(buf, &ds);
    list_push_back(&rpc->output, &buf->list_node);
    rpc->output_count++;
    rpc->backlog += length;

    if (rpc->output_count >= 50) {
        VLOG_INFO_RL(&rl, "excessive sending backlog, jsonrpc: %s, num of"
                     " msgs: %"PRIuSIZE", backlog: %"PRIuSIZE".", rpc->name,
                     rpc->output_count, rpc->backlog);
    }

    if (rpc->backlog == length) {
        jsonrpc_run(rpc);
    }
    return rpc->status;
}