proxy: mcp.log_req* API interface

Lua level API for logging full context of a request/response. Provides
log_req() for simple logging and log_reqsample() for conditional
logging.

1 files changed, 4 insertions, 0 deletions

diff --git a/proxy_await.c b/proxy_await.c
index 8c277ea..60cd004 100644
--- a/proxy_await.c
+++ b/proxy_await.c
@@ -167,6 +167,10 @@ static void mcp_queue_await_io(conn *c, lua_State *Lc, mcp_request_t *rq, int aw
 
     // The direct backend object. await object is holding reference
     p->backend = be;
+    // See #887 for notes.
+    // TODO (v2): hopefully this can be optimized out.
+    strncpy(r->be_name, be->name, MAX_NAMELEN+1);
+    strncpy(r->be_port, be->port, MAX_PORTLEN+1);
 
     mcp_request_attach(Lc, rq, p);