From 7a914e7f3d3d53ccbde50d0933cbaf576720c24e Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Thu, 28 Nov 2019 12:23:14 +0100
Subject: [PATCH] unix: retry on EINTR in uv_sleep()
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Reception of a signal makes nanosleep() return prematurely. Restart the
system call when that happens.

PR-URL: https://github.com/libuv/libuv/pull/2552
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
---
 src/unix/core.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/unix/core.c b/src/unix/core.c
index 6b10af56..04999dce 100644
--- a/src/unix/core.c
+++ b/src/unix/core.c
@@ -1558,8 +1558,14 @@ int uv_gettimeofday(uv_timeval64_t* tv) {
 
 void uv_sleep(unsigned int msec) {
   struct timespec timeout;
+  int rc;
 
   timeout.tv_sec = msec / 1000;
   timeout.tv_nsec = (msec % 1000) * 1000 * 1000;
-  nanosleep(&timeout, NULL);
+
+  do
+    rc = nanosleep(&timeout, &timeout);
+  while (rc == -1 && errno == EINTR);
+
+  assert(rc == 0);
 }