From: Alan T. DeKok <aland@freeradius.org>
Date: Wed, 17 Jan 2018 14:53:01 +0000 (-0500)
Subject: return "no more data" when too many outstanding packets.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26e552131f44755dcef089ff91ba00cb306e91bd;p=thirdparty%2Ffreeradius-server.git

return "no more data" when too many outstanding packets.

Once a socket is ready, the network side tries to read many
packets.  So we have to check for max_outstanding ourselves
---

diff --git a/src/modules/proto_detail/proto_detail_work.c b/src/modules/proto_detail/proto_detail_work.c
index 8f6bdd41867..c06e3885a61 100644
--- a/src/modules/proto_detail/proto_detail_work.c
+++ b/src/modules/proto_detail/proto_detail_work.c
@@ -165,6 +165,16 @@ static ssize_t mod_read(void *instance, void **packet_ctx, fr_time_t **recv_time
 		return 0;
 	}
 
+	/*
+	 *	Once a socket is ready, the network side tries to read
+	 *	many packets.  So if we want to stop it from reading,
+	 *	we have to check this ourselves.
+	 */
+	if (inst->outstanding >= inst->max_outstanding) {
+		rad_assert(inst->paused);
+		return 0;
+	}
+
 	/*
 	 *	Seek to the current read offset.
 	 */