- * 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 `coder' is optional encoder/decoder callback which the packet engine
+ * will call if it is non-NULL. It can be used to encode additional data
+ * into each packet when silc_stream_write is called or decode data before
+ * it is passed to reader when silc_stream_read is called. The `context'
+ * is passed to `coder'.