fix typo and make stub call timeout parameter using Timeout instead o…

…f uint64

rpc/rpc.cpp

@@ -419,7 +419,7 @@ namespace rpc {
 
  class StubPoolImpl : public StubPool {
  public:
- explicit StubPoolImpl(uint64_t expiration, int64_t connect_timeout, uint64_t transfer_timeout) {
+ explicit StubPoolImpl(uint64_t expiration, uint64_t connect_timeout, uint64_t transfer_timeout) {
  tls_ctx = net::new_tls_context(nullptr, nullptr, nullptr);
  tcpclient = net::new_tcp_socket_client();
  tcpclient->timeout(connect_timeout);

rpc/rpc.h

@@ -59,7 +59,7 @@ namespace rpc
  /**
  * @param req Request of Message
  * @param resp Response of Message
- * @param timeout timeout in milliseconds, -1UL for no timeout
+ * @param timeout RPC timeout, counting from sending request to receiving response header
  * @return The number of bytes received, -1 for failure
  * @note Request and Response should assign to external memory buffers if they have variable-length fields.
  * Via this, we can achieve zero-copy send and receive.
@@ -70,7 +70,7 @@ namespace rpc
  template<typename Operation>
  int call(typename Operation::Request& req,
  typename Operation::Response& resp,
- uint64_t timeout = -1UL)
+ Timeout timeout = {})
  {
  SerializerIOV reqmsg;
  reqmsg.serialize(req);