[PATCH 4/6] netlink: Add l_netlink_request_sent

This is similar to l_genl_family_request_sent()
---
 ell/ell.sym   |  1 +
 ell/netlink.c | 18 ++++++++++++++++++
 ell/netlink.h |  1 +
 3 files changed, 20 insertions(+)

diff --git a/ell/ell.sym b/ell/ell.sym
index 1499081cb25e..cbeb61ff0f46 100644
--- a/ell/ell.sym
+++ b/ell/ell.sym
@@ -431,6 +431,7 @@ global:
 	l_netlink_destroy;
 	l_netlink_send;
 	l_netlink_cancel;
+	l_netlink_request_sent;
 	l_netlink_register;
 	l_netlink_unregister;
 	l_netlink_set_debug;
diff --git a/ell/netlink.c b/ell/netlink.c
index 0be3009c736f..7e6ef0f760e7 100644
--- a/ell/netlink.c
+++ b/ell/netlink.c
@@ -467,6 +467,24 @@ LIB_EXPORT bool l_netlink_cancel(struct l_netlink *netlink, unsigned int id)
 	return true;
 }
 
+LIB_EXPORT bool l_netlink_request_sent(struct l_netlink *netlink,
+							unsigned int id)
+{
+	struct command *command;
+	struct nlmsghdr *hdr;
+
+	if (unlikely(!netlink || !id))
+		return false;
+
+	command = l_hashmap_lookup(netlink->command_lookup, L_UINT_TO_PTR(id));
+	if (!command)
+		return false;
+
+	hdr = command->message->hdr;
+	return l_hashmap_lookup(netlink->command_pending,
+					L_UINT_TO_PTR(hdr->nlmsg_seq));
+}
+
 static bool add_membership(struct l_netlink *netlink, uint32_t group)
 {
 	int sk, value = group;
diff --git a/ell/netlink.h b/ell/netlink.h
index b51748195ca6..368f38619155 100644
--- a/ell/netlink.h
+++ b/ell/netlink.h
@@ -37,6 +37,7 @@ unsigned int l_netlink_send(struct l_netlink *netlink,
 				void *user_data,
 				l_netlink_destroy_func_t destroy);
 bool l_netlink_cancel(struct l_netlink *netlink, unsigned int id);
+bool l_netlink_request_sent(struct l_netlink *netlink, unsigned int id);
 
 unsigned int l_netlink_register(struct l_netlink *netlink,
 			uint32_t group, l_netlink_notify_func_t function,
-- 
2.45.2