From 0912ca12a04a6390673be528e0fd695da198ee7e Mon Sep 17 00:00:00 2001
From: Jason Volk <jason@zemos.net>
Date: Tue, 10 Dec 2019 12:12:57 -0800
Subject: [PATCH] ircd::m::room::head: Log and propagate errors during
 generate.

---
 matrix/room_head.cc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/matrix/room_head.cc b/matrix/room_head.cc
index d06f77b7e..5a2938910 100644
--- a/matrix/room_head.cc
+++ b/matrix/room_head.cc
@@ -44,6 +44,7 @@ IRCD_MODULE_EXPORT
 ircd::m::room::head::generate::generate(json::stack::array &out,
                                         const m::room::head &head,
                                         const opts &opts)
+try
 {
 	if(!head.room)
 		return;
@@ -158,6 +159,17 @@ ircd::m::room::head::generate::generate(json::stack::array &out,
 
 	assert(limit >= 0);
 }
+catch(const std::exception &e)
+{
+	log::error
+	{
+		log, "%s prev_events generator :%s",
+		string_view{head.room},
+		e.what(),
+	};
+
+	throw;
+}
 
 void
 ircd::m::append_v1(json::stack::array &out,