Added blocking support for wrapped packet stream.

[silc.git] / lib / silccore / silcpacket.h

diff --git a/lib/silccore/silcpacket.h b/lib/silccore/silcpacket.h
index c7527a43fa4a2656acc536124be1143ae72d14de..7ddabff11732bfbfc7b7c6fe856756738b1847f7 100644 (file)
--- a/lib/silccore/silcpacket.h
+++ b/lib/silccore/silcpacket.h
@@ -4,7 +4,7 @@
 
   Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 1997 - 2006 Pekka Riikonen
+  Copyright (C) 1997 - 2007 Pekka Riikonen
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -85,6 +85,7 @@ typedef SilcUInt8 SilcPacketType;
 #define SILC_PACKET_RESUME_ROUTER        26      /* Backup router resume */
 #define SILC_PACKET_FTP                  27      /* File Transfer */
 #define SILC_PACKET_RESUME_CLIENT        28      /* Client resume */
+#define SILC_PACKET_ACK                  29      /* Acknowledgement */
 
 #define SILC_PACKET_PRIVATE              200     /* Private range start  */
 #define SILC_PACKET_MAX                  255     /* RESERVED */
@@ -617,7 +618,8 @@ void silc_packet_stream_unlink(SilcPacketStream stream,
  *
  *    SilcStream silc_packet_stream_wrap(SilcPacketStream stream,
  *                                       SilcPacketType type,
- *                                       SilcPacketFlags flags);
+ *                                       SilcPacketFlags flags,
+ *                                       SilcBool blocking_mode);
  *
  * DESCRIPTION
  *
@@ -629,11 +631,18 @@ void silc_packet_stream_unlink(SilcPacketStream stream,
  *    stream can be destroyed by calling silc_stream_destroy.  It does not
  *    destroy the wrapped packet stream.
  *
- *    The silc_stream_set_notifier must be called before the returned stream
- *    can be used to receive packets.  The SILC_STREAM_CAN_READ will be
- *    returned to the notifier callback to indicate that a packet is ready
- *    for reading.  Calling silc_stream_read once returns one complete SILC
- *    packet data payload (which is of type of `type').
+ *    If the `blocking_mode' mode is TRUE then the silc_stream_read and
+ *    silc_stream_write may block the calling process or thread until SILC
+ *    packet is read or written.  If it is FALSE the stream is in non-blocking
+ *    mode and the calls never block.  The returned stream is thread-safe and
+ *    packets may be read and written in multi-threaded environment.
+ *
+ *    In non-blocking mode the silc_stream_set_notifier must be called before
+ *    the returned stream can be used to read packets.  The stream status
+ *    SILC_STREAM_CAN_READ will be returned to the notifier callback to
+ *    indicate that a packet is ready for reading.  Calling silc_stream_read
+ *    once returns one complete SILC packet data payload (which is of type of
+ *    `type').
  *
  *    The returned SilcStream can be used as any normal stream and all
  *    SilcStream API functions may be used with the stream.  This returns
@@ -642,7 +651,8 @@ void silc_packet_stream_unlink(SilcPacketStream stream,
  ***/
 SilcStream silc_packet_stream_wrap(SilcPacketStream stream,
                                   SilcPacketType type,
-                                  SilcPacketFlags flags);
+                                  SilcPacketFlags flags,
+                                  SilcBool blocking_mode);
 
 /****f* silccore/SilcPacketAPI/silc_packet_get_sender
  *