spool/BYRR...CG6Q/rx.lock
spool/BYRR...CG6Q/rx/
spool/BYRR...CG6Q/tx.lock
+spool/BYRR...CG6Q/tx/AQUT...DGNT.seen
spool/BYRR...CG6Q/tx/NSYY...ZUU6
+spool/BYRR...CG6Q/tx/VCSR...3VXX.seen
spool/BYRR...CG6Q/tx/ZI5U...5RRQ
@end verbatim
-Except for @code{tmp}, all other directories are Base32-encoded node
-identifiers (@code{2WHB...OABQ}, @code{BYRR...CG6Q} in our example).
-Each node subdirectory has @code{rx} (received, partly received and
-currently unprocessed packets) and @code{tx} (for outbound packets)
+Except for @file{tmp}, all other directories are Base32-encoded node
+identifiers (@file{2WHB...OABQ}, @file{BYRR...CG6Q} in our example).
+Each node subdirectory has @file{rx} (received, partly received and
+currently unprocessed packets) and @file{tx} (for outbound packets)
directories.
-Each @code{rx}/@code{tx} directory contains one file per encrypted
+Each @file{rx}/@file{tx} directory contains one file per encrypted
packet. Its filename is Base32 encoded BLAKE2b hash of the contents. So
-it can be integrity checked at any time. @code{5ZIB...UMKW.part} is
-partly received file from @code{2WHB...OABQ} node. @code{tx} directory
+it can be integrity checked at any time. @file{5ZIB...UMKW.part} is
+partly received file from @file{2WHB...OABQ} node. @file{tx} directory
can not contain partly written files -- they are moved atomically from
-@code{tmp}.
+@file{tmp}.
-Only one process can work with @code{rx}/@code{tx} directories at once,
+When @ref{nncp-toss} utility is called with @option{-seen} option, it
+will create empty @file{XXX.seen} files, telling that some kind of
+packet was already tossed sometime.
+
+Only one process can work with @file{rx}/@file{tx} directories at once,
so there are corresponding lock files.