client: client_defer_output() can create the first defer buffer

client_defer_output() was designed to add new buffers to an existing deferred_send buffer. Tweak it and allow it to create a new buffer list.

client: client_defer_output() can create the first defer buffer
4516bd11 · Max Kellermann · 20f06162 · 4516bd11
Commit 4516bd11 authored Aug 28, 2008 by Max Kellermann
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Showing with 5 additions and 5 deletions

client.c src/client.c +5 -5

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--- a/src/client.c
+++ b/src/client.c
@@ -722,7 +722,7 @@ int client_print(int fd, const char *buffer, size_t buflen)
 static void client_defer_output(struct client *client,
 				const void *data, size_t length)
 {
-	struct sllnode *buf;
+	struct sllnode **buf_r;
 	assert(client->deferred_send != NULL);
@@ -738,10 +738,10 @@ static void client_defer_output(struct client *client,
 		return;
 	}
-	buf = client->deferred_send;
+	buf_r = &client->deferred_send;
-	while (buf->next)
+	while (*buf_r != NULL)
-		buf = buf->next;
+		buf_r = &(*buf_r)->next;
-	buf->next = new_sllnode(data, length);
+	*buf_r = new_sllnode(data, length);
 }
 static void client_write_output(struct client *client)