From f75b8a3b95f4b06ffe0f7b16b6552e1b10560b6e Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 5 Oct 2020 14:38:00 +0200
Subject: [PATCH] mplexer: Add a method to inspect the monitored descriptors

---
 pdns/mplexer.hh | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/pdns/mplexer.hh b/pdns/mplexer.hh
index a948c9f075..9408a2ad37 100644
--- a/pdns/mplexer.hh
+++ b/pdns/mplexer.hh
@@ -178,6 +178,16 @@ public:
     return writeFDs ? d_writeCallbacks.size() : d_readCallbacks.size();
   }
 
+  void runForAllWatchedFDs(void(*watcher)(bool isRead, int fd, const funcparam_t&, struct timeval))
+  {
+    for (const auto& entry : d_readCallbacks) {
+      watcher(true, entry.d_fd, entry.d_parameter, entry.d_ttd);
+    }
+    for (const auto& entry : d_writeCallbacks) {
+      watcher(false, entry.d_fd, entry.d_parameter, entry.d_ttd);
+    }
+  }
+
 protected:
   struct FDBasedTag {};
   struct TTDOrderedTag {};
-- 
2.47.3