[Bug #20708] Retry `open` on EINTR

Co-Authored-By: Martin Dorey <[email protected]>

1 files changed, 4 insertions, 1 deletions

diff --git a/io.c b/io.c
index 54b60b7357..590e8d11d7 100644
--- a/io.c
+++ b/io.c
@@ -6956,7 +6956,10 @@ sysopen_func(void *ptr)
 static inline int
 rb_sysopen_internal(struct sysopen_struct *data)
 {
-    int fd = IO_WITHOUT_GVL_INT(sysopen_func, data);
+    int fd;
+    do {
+        fd = IO_WITHOUT_GVL_INT(sysopen_func, data);
+    } while (fd < 0 && errno == EINTR);
     if (0 <= fd)
         rb_update_max_fd(fd);
     return fd;