From: Alexander A. Klimov <alexander.klimov@icinga.com>
Date: Fri, 5 Apr 2019 07:22:42 +0000 (+0200)
Subject: /v1/events: don't deadlock other coroutines
X-Git-Tag: v2.11.0-rc1~162^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=2e4e2e1a79384a614bf1106860f4a6505e997adc;p=icinga2

/v1/events: don't deadlock other coroutines
---

diff --git a/lib/remote/eventshandler.cpp b/lib/remote/eventshandler.cpp
index 4bc028514..98e815354 100644
--- a/lib/remote/eventshandler.cpp
+++ b/lib/remote/eventshandler.cpp
@@ -101,6 +101,7 @@ bool EventsHandler::HandleRequest(
 	}
 
 	asio::const_buffer newLine ("\n", 1);
+	AsioConditionVariable dontLockOwnStrand (stream.get_io_service(), true);
 
 	for (;;) {
 		auto event (queue->WaitForEvent(&request, yc));
@@ -119,6 +120,8 @@ bool EventsHandler::HandleRequest(
 			stream.async_flush(yc);
 		} else if (server.Disconnected()) {
 			return true;
+		} else {
+			dontLockOwnStrand.Wait(yc);
 		}
 	}
 }