From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Mon, 3 Apr 2023 14:13:42 +0000 (+0200)
Subject: Treat ECONNRESET like a normal connection close.
X-Git-Tag: v3.34~214
X-Git-Url: http://bilbo.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/2fbcc71ab230e6a05e64189f6bd7c49c1df31907?hp=8ee33e91b51a3da554a097f6eb3927b74a1ea903

Treat ECONNRESET like a normal connection close.

Also return immediately with EAGAIN, or handle_message() will fail with size == -1.
---

diff --git a/src/mc/remote/CheckerSide.cpp b/src/mc/remote/CheckerSide.cpp
index 2e64dd8449..ab9feec026 100644
--- a/src/mc/remote/CheckerSide.cpp
+++ b/src/mc/remote/CheckerSide.cpp
@@ -131,9 +131,15 @@ void CheckerSide::setup_events(bool socket_only)
           std::array<char, MC_MESSAGE_LENGTH> buffer;
           ssize_t size = recv(checker->get_channel().get_socket(), buffer.data(), buffer.size(), MSG_DONTWAIT);
           if (size == -1) {
-            XBT_ERROR("Channel::receive failure: %s", strerror(errno));
-            if (errno != EAGAIN)
-              throw simgrid::xbt::errno_error();
+            if (errno == ECONNRESET) {
+              XBT_DEBUG("Channel::receive failure: %s", strerror(errno));
+              size = 0; // Connection was closed
+            } else {
+              XBT_ERROR("Channel::receive failure: %s", strerror(errno));
+              if (errno != EAGAIN)
+                throw simgrid::xbt::errno_error();
+              return;
+            }
           }
 
           if (size == 0) // The app closed the socket. It must be dead by now.