windows: Use an adaptively sized buffer for nonblocking writes.

[libserialport.git] / libserialport_internal.h

diff --git a/libserialport_internal.h b/libserialport_internal.h
index 6ea5e5a2e57ebfa345357ed4acfdf4dd80f3d916..46c77a8b65446ebf6cbe07ceba4c210051f25ae4 100644 (file)
--- a/libserialport_internal.h
+++ b/libserialport_internal.h
@@ -107,7 +107,8 @@ struct sp_port {
        OVERLAPPED read_ovl;
        OVERLAPPED wait_ovl;
        DWORD events;
-       BYTE pending_byte;
+       BYTE *write_buf;
+       DWORD write_buf_size;
        BOOL writing;
        BOOL wait_running;
 #else