implement readiness

Signed-off-by: Miek Gieben <miek@miek.nl>

plugin/traffic/xds/fields.go

@@ -1,37 +1,57 @@
 package xds
 
+// Assignment returns the current assignment map.
 func (c *Client) Assignments() *assignment {
 	c.mu.RLock()
 	defer c.mu.RUnlock()
 	return c.assignments
 }
 
+// SetAssignment sets the assignment map.
 func (c *Client) SetAssignments(a *assignment) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 	c.assignments = a
 }
 
+// Version returns the last version seen from the API for this typeURL.
 func (c *Client) Version(typeURL string) string {
 	c.mu.RLock()
 	defer c.mu.RUnlock()
 	return c.version[typeURL]
 }
 
+// SetVersion sets the version for this typeURL.
 func (c *Client) SetVersion(typeURL, a string) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 	c.version[typeURL] = a
 }
 
+// Nonce returns the last nonce seen from the API for this typeURL.
 func (c *Client) Nonce(typeURL string) string {
 	c.mu.RLock()
 	defer c.mu.RUnlock()
 	return c.nonce[typeURL]
 }
 
+// SetNonce sets the nonce. for this typeURL.
 func (c *Client) SetNonce(typeURL, n string) {
 	c.mu.Lock()
 	defer c.mu.Unlock()
 	c.nonce[typeURL] = n
 }
+
+// SetSynced sets the synced boolean to true.
+func (c *Client) setSynced() {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+	c.synced = true
+}
+
+// Synced return true if the clients has synced.
+func (c *Client) HasSynced() bool {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	return c.synced
+}