eloop: Add eloop_sock_requeue()

This function can be used to re-build eloop socket tables after forking
for eloop implementations that need this.

Signed-off-by: Roy Marples <roy@marples.name>

src/utils/eloop.c

@@ -525,6 +525,12 @@ static void eloop_sock_table_dispatch(struct epoll_event *events, int nfds)
 #endif /* CONFIG_ELOOP_EPOLL */
 
 
+int eloop_sock_requeue(void)
+{
+	return 0;
+}
+
+
 static void eloop_sock_table_destroy(struct eloop_sock_table *table)
 {
 	if (table) {

src/utils/eloop.h

@@ -312,6 +312,14 @@ int eloop_register_signal_terminate(eloop_signal_handler handler,
 int eloop_register_signal_reconfig(eloop_signal_handler handler,
 				   void *user_data);
 
+/**
+ * eloop_sock_requeue - Requeue sockets
+ *
+ * Requeue sockets after forking because some implementations require this,
+ * such as epoll and kqueue.
+ */
+int eloop_sock_requeue(void);
+
 /**
  * eloop_run - Start the event loop
  *

src/utils/eloop_win.c

@@ -692,3 +692,9 @@ void eloop_wait_for_read_sock(int sock)
 	WSAEventSelect(sock, event, 0);
 	WSACloseEvent(event);
 }
+
+
+int eloop_sock_requeue(void)
+{
+	return 0;
+}