tt_file_join(3)

NAME
     tt_file_join - register interest in messages involving a file

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_file_join(const char *filepath);

DESCRIPTION
     The tt_file_join() function informs the ToolTalk service that the process
     is interested in messages that involve the specified file.

     The ToolTalk service adds this file value to any currently registered
     patterns.  The named file becomes the default file.

     When the process joins a file, the ToolTalk service updates the file
     field of its registered patterns.  The tt_file_join() call causes the
     pattern's ToolTalk session to be stored in the database.

     The filepath argument is a pointer to the pathname of the file in which
     the process is interested.

RETURN VALUE
     Upon successful completion, the tt_file_join() function returns the
     status of the operation as one of the following Tt_status values:

        TT_OK   The operation completed successfully.

        TT_ERR_DBAVAIL
                The ToolTalk service could not access the ToolTalk database
                needed for this operation.

        TT_ERR_DBEXIST
                The ToolTalk service could not access the specified ToolTalk
                database in the expected place.

        TT_ERR_NOMP
                The ttsession(1) process is not running and the ToolTalk
                service cannot restart it.

        TT_ERR_PATH
                The specified pathname included an unsearchable directory.

SEE ALSO
     Tttt_c(5).