init MaxOpenFiles by process limit

kingcanfish · Oct 20, 2022 · 97a0ab4 · 97a0ab4
1 parent 6ede89e
commit 97a0ab4
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/net_unix.go b/net_unix.go
@@ -13,6 +13,15 @@ import (
 	"syscall"
 )
 
+func init() {
+	var limit syscall.Rlimit
+	if err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &limit); err ==nil {
+		if n := int(limit.Max); n > 0 {
+			MaxOpenFiles = n
+		}
+	}
+}
+
 //go:norace
 func dupStdConn(conn net.Conn) (*Conn, error) {
 	sc, ok := conn.(interface {