proxy: mcp.internal fixes and tests

- Refcount leak on sets
- Move the response elapsed timer back closer to when the response was
  processed as to not clobber the wrong IO object data
- Restores error messages from set/ms
- Adds start of unit tests

Requests will look like they run a tiiiiny bit faster than they do, but
I need to get the elapsed time there for a later change.

1 files changed, 0 insertions, 6 deletions

diff --git a/proto_proxy.c b/proto_proxy.c
index 748ff12..f70d666 100644
--- a/proto_proxy.c
+++ b/proto_proxy.c
@@ -290,14 +290,8 @@ void proxy_return_cb(io_pending_t *pending) {
     if (p->is_await) {
         mcplib_await_return(p);
     } else {
-        struct timeval end;
         lua_State *Lc = p->coro;
 
-        // stamp the elapsed time into the response object.
-        gettimeofday(&end, NULL);
-        p->client_resp->elapsed = (end.tv_sec - p->client_resp->start.tv_sec) * 1000000 +
-            (end.tv_usec - p->client_resp->start.tv_usec);
-
         // in order to resume we need to remove the objects that were
         // originally returned
         // what's currently on the top of the stack is what we want to keep.