From b38b33db034e67a8d6946f16527480529a7c830d Mon Sep 17 00:00:00 2001
From: Michael Davidsaver <mdavidsaver@gmail.com>
Date: Tue, 26 Jan 2021 21:50:15 -0800
Subject: [PATCH] raise search reply processing limit

Seems pvAccessCPP likes to send lots of individual replies
to our nicely batched search requests.
---
 src/client.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/client.cpp b/src/client.cpp
index a4ac99b..7ea956e 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -614,8 +614,11 @@ void Context::Pvt::onSearchS(evutil_socket_t fd, short evt, void *raw)
         if(!(evt&EV_READ))
             return;
 
-        // handle up to 4 packets before going back to the reactor
-        for(unsigned i=0; i<4 && static_cast<Pvt*>(raw)->onSearch(); i++) {}
+        // limit number of packets processed before going back to the reactor
+        unsigned i;
+        const unsigned limit = 40;
+        for(i=0; i<limit && static_cast<Pvt*>(raw)->onSearch(); i++) {}
+        log_debug_printf(io, "UDP search processed %u/%u\n", i, limit);
 
     }catch(std::exception& e){
         log_exc_printf(io, "Unhandled error in search Rx callback: %s\n", e.what());