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  man pages->HP-UX 11i man pages -> tt_fd (3)              


 tt_fd(library call)                                     tt_fd(library call)

 NAME    [Toc]    [Back]
      tt_fd - return a file descriptor

 SYNOPSIS    [Toc]    [Back]
      #include <Tt/tt_c.h>
      int tt_fd(void)

 DESCRIPTION    [Toc]    [Back]
      The tt_fd function returns a file descriptor.  The returned file
      descriptor alerts the process that a message has arrived for the
      default procid in the default session.

      File descriptors are either active or inactive.  When the file
      descriptor becomes active, the process must call tt_message_receive(3)
      to receive the message.

 RETURN VALUE    [Toc]    [Back]
      Upon successful completion, the tt_fd function returns the file
      descriptor for the current procid.  The application can use
      tt_int_error(3) to extract one of the following Tt_status values from
      the returned integer:

      TT_OK     The operation completed successfully.

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

                The current default process identifier is out of date or

                The specified ToolTalk session is out of date or invalid.

 APPLICATION USAGE    [Toc]    [Back]
      The application must have a separate file descriptor for each procid.
      To get an associated file descriptor, the application should use tt_fd
      each time it calls tt_open(3).

 SEE ALSO    [Toc]    [Back]
      Tt/tt_c.h - Tttt_c(5), tt_open(3), tt_int_error(3),

                                    - 1 -       Formatted:  January 24, 2005
[ Back ]
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