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Don't terminate HTTP requests with timeouts if response is already available in the socket

nfs-proxy-old
Vitaliy Filippov 10 months ago
parent
commit
390239c51b
  1. 42
      src/http_client.cpp

42
src/http_client.cpp

@ -65,7 +65,7 @@ struct http_co_t
void next_request();
void handle_events();
void handle_connect_result();
void submit_read();
void submit_read(bool check_timeout);
void submit_send();
bool handle_read();
void post_message(int type, const std::string & msg);
@ -167,10 +167,19 @@ void http_co_t::send_request(const std::string & host, const std::string & reque
timeout_id = tfd->set_timer(request_timeout, false, [this](int timer_id)
{
stackin();
close_connection();
parsed = { .error = "HTTP request timed out" };
run_cb_and_clear();
next_request();
if (state == HTTP_CO_REQUEST_SENT)
{
// In case of high CPU load, we may not handle etcd responses in time
// For this case, first check the socket and only then terminate request with the timeout
submit_read(true);
}
else
{
close_connection();
parsed = { .error = "HTTP request timed out" };
run_cb_and_clear();
next_request();
}
stackout();
});
}
@ -328,7 +337,7 @@ void http_co_t::handle_events()
epoll_events &= ~EPOLLOUT;
if (epoll_events & EPOLLIN)
{
submit_read();
submit_read(false);
}
else if (epoll_events & (EPOLLRDHUP|EPOLLERR))
{
@ -418,10 +427,11 @@ again:
stackout();
}
void http_co_t::submit_read()
void http_co_t::submit_read(bool check_timeout)
{
stackin();
int res;
again:
if (rbuf.size() != READ_BUFFER_SIZE)
{
rbuf.resize(READ_BUFFER_SIZE);
@ -436,7 +446,23 @@ void http_co_t::submit_read()
}
if (res == -EAGAIN || res == -EINTR)
{
epoll_events = epoll_events & ~EPOLLIN;
if (check_timeout)
{
if (res == -EINTR)
goto again;
else
{
// Timeout happened and there is no data to read
close_connection();
parsed = { .error = "HTTP request timed out" };
run_cb_and_clear();
next_request();
}
}
else
{
epoll_events = epoll_events & ~EPOLLIN;
}
}
else if (res <= 0)
{

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