Threads Library Functions              td_thr_setsigpending(3THR)

NAME
     td_thr_setsigpending, td_thr_sigsetmask - manage thread sig-
     nals for libthread_db

SYNOPSIS
     cc [ flag ... ] file ... -lthread_db [ library ... ]

     #include <proc_service.h>
     #include <thread_db.h>

     td_err_e td_thr_setsigpending(const td_thrhandle_t  *  th_p,
     const    uchar_   t   ti_sigpending_flag,   const   sigset_t
     ti_sigmask;);

     td_err_e td_thr_sigsetmask(const td_thrhandle_t *th_p, const
     sigset_t ti_sigmask);

DESCRIPTION
     The td_thr_setsigpending() and   td_thr_setsigmask()  opera-
     tions  affect  the  signal state of the thread identified by
     th_p.

     td_thr_setsigpending() sets the set of pending  signals  for
     thread    th_p   to    ti_sigpending.   The   value  of  the
     libthread-internal field that indicates whether a thread has
     any  signal pending is set to ti_sigpending_flag. To be con-
     sistent,  ti_sigpending_flag should be zero if and  only  if
     all of the bits in  ti_sigpending are zero.

     td_thr_sigsetmask() sets the signal mask of the thread  th_p
     as  if  the  thread  had  set  its own signal mask by way of
     thr_sigsetmask(3THR). The new signal mask is  the  value  of
     ti_sigmask.

     There is no equivalent to  the   SIG_BLOCK  or   SIG_UNBLOCK
     operations  of  thr_sigsetmask(3THR),  which  mask or unmask
     specific signals without affecting the mask state  of  other
     signals.   To block or unblock specific signals, either stop
     the  whole  process,  or  the  thread,  if   necessary,   by
     td_thr_dbsuspend().  Then  determine  the  thread's existing
     signal mask by calling  td_thr_get_info()  and  reading  the
     ti_sigmask  field  of  the  td_thrinfo_t structure returned.
     Modify it as desired, and  set  the  new  signal  mask  with
     td_thr_sigsetmask().

RETURN VALUES
     TD_OK The call completed successfully.

     TD_BADTH
           An invalid thread handle was passed in.

     TD_DBERR

SunOS 5.8           Last change: 20 Oct 1998                    1

Threads Library Functions              td_thr_setsigpending(3THR)

           A call to  one  of  the  imported  interface  routines
           failed.

     TD_ERR
           A  libthread_db internal error occurred.

ATTRIBUTES
     See attributes(5) for description of  the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | MT-Level                    | Safe                        |
    |_____________________________|_____________________________|

SEE ALSO
     libthread_db(3THR),                  td_thr_dbsuspend(3THR),
     td_thr_get_info(3THR), libthread_db(3LIB), attributes(5)

SunOS 5.8           Last change: 20 Oct 1998                    2