From 88751da1145e1bbc4ed32fd100184f3f0d7e2ad1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@isc.org>
Date: Tue, 15 Feb 2022 14:44:29 +0100
Subject: [PATCH] Add UV_RUNTIME_CHECK() macro to print uv_strerror()

When libuv functions fail, they return correct return value that could
be useful for more detailed debugging.  Currently, we usually just check
whether the return value is 0 and invoke assertion error if it doesn't
throwing away the details why the call has failed.  Unfortunately, this
often happen on more exotic platforms.

Add a UV_RUNTIME_CHECK() macro that can be used to print more detailed
error message (via uv_strerror() before ending the execution of the
program abruptly with the assertion.

(cherry picked from commit 62e15bb06db5e7d209e8c20d7bdb1501df7dfba8)
Conflict: NA
Reference: https://gitlab.isc.org/isc-projects/bind9/-/commit/88751da1145e1bbc4ed32fd100184f3f0d7e2ad1
---
 lib/isc/netmgr/netmgr-int.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/isc/netmgr/netmgr-int.h b/lib/isc/netmgr/netmgr-int.h
index 326535c..23bc2a2 100644
--- a/lib/isc/netmgr/netmgr-int.h
+++ b/lib/isc/netmgr/netmgr-int.h
@@ -1607,3 +1607,9 @@ isc__nmsocket_writetimeout_cb(void *data, isc_result_t eresult);
  * changed in the future.
  */
 #define STREAM_CLIENTS_PER_CONN 23
+
+#define UV_RUNTIME_CHECK(func, ret)                                           \
+       if (ret != 0) {                                                       \
+               isc_error_fatal(__FILE__, __LINE__, "%s failed: %s\n", #func, \
+                               uv_strerror(ret));                            \
+       }
-- 
2.27.0

