Fix: Don't allocate buffers if we don't need to

diff --git a/gatchat/gatserver.c b/gatchat/gatserver.c
index 5b5e2f7..05392e9 100644 (file)
--- a/gatchat/gatserver.c
+++ b/gatchat/gatserver.c
@@ -136,7 +136,12 @@ static void send_common(GAtServer *server, const char *buf, unsigned int len)
                                                        buf + bytes_written,
                                                        wbytes);
 
-               if (ring_buffer_avail(write_buf) == 0)
+               /*
+                * Make sure we don't allocate a buffer if we've written
+                * everything out already
+                */
+               if (ring_buffer_avail(write_buf) == 0 &&
+                               bytes_written < towrite)
                        write_buf = allocate_next(server);
        }