commit de448e0f26e710e9d2b7fc91393c40ac24b75847
author Trent Huber <trentmhuber@gmail.com> Fri Jun 14 17:06:38 2024 -0400
committer Michael Tokarev <mjt@tls.msk.ru> Sun Jun 30 19:51:44 2024 +0300
tree f6fc5e276e7a0d246614eb9eee79b8466bda377f
parent 737308fe2be4cf653c3fe9e1358b6a08f673a5d1

os-posix: Expand setrlimit() syscall compatibility

Darwin uses a subtly different version of the setrlimit() syscall as
described in the COMPATIBILITY section of the macOS man page. The value
of the rlim_cur member has been adjusted accordingly for Darwin-based
systems.

Signed-off-by: Trent Huber <trentmhuber@gmail.com>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

os-posix.c

diff --git a/os-posix.c b/os-posix.c
index a4284e2..43f9a43 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -270,7 +270,11 @@
         return;
     }
 
+#ifdef CONFIG_DARWIN
+    nofile.rlim_cur = OPEN_MAX < nofile.rlim_max ? OPEN_MAX : nofile.rlim_max;
+#else
     nofile.rlim_cur = nofile.rlim_max;
+#endif
 
     if (setrlimit(RLIMIT_NOFILE, &nofile) < 0) {
         warn_report("unable to set NOFILE limit: %s", strerror(errno));