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tt_open(3)
CDE
NAME
  tt_open - return the process identifier for the calling process

SYNOPSIS
  #include <tt_c.h>
  char *tt_open(void);

DESCRIPTION
  The tt_open function returns the process identifier for the calling
  process.

RETURN VALUE
  The tt_open function also sets this identifier as the default procid for
  the process. The tt_open(3) function is typically the first ToolTalk
  function called by a process.

  The application must call tt_open(3) before other tt_ calls are made.
  However, there are two exceptions: tt_default_session_set(3) and
  tt_X_session(3) can be called before tt_open.

  A process can call tt_open more than once to obtain multiple procids. To
  open another session, the process must make the following calls in the
  order specified:

       tt_default_session_set(3)
       tt_open

RETURN VALUE
  Upon successful completion, the tt_open function returns the character
  value that uniquely identifies the process. The application can use
  tt_ptr_error(3) to extract one of the following Tt_status values from the
  returned pointer:

  TT_OK
      The operation completed successfully.

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

APPLICATION USAGE
  The application should use tt_free(3) to free any data stored in the
  address returned by the ToolTalk API.

  Each procid has its own associated file descriptor, and can join another
  session. To switch to another procid, the application should call
  tt_default_procid_set.

SEE ALSO
  tt_c.h(5), tt_fd(3), tt_default_procid(3), tt_default_procid_set(3),
  tt_default_session(3), tt_default_session_set(3), tt_ptr_error(3),
  tt_free(3)

Index for Section 3

Alphabetical listing for T

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