Manual Pages for UNIX Operating System command usage for man td_thr_sigsetmask

Threads Debugging Library Functions   td_thr_setsigpending(3C_DB)



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

SYNOPSIS
     cc [ flag... ] file... -lc_db [ library... ]
     #include 
     #include 

     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() functions
     affect the signal state of the thread identified by th_p.


     The td_thr_setsigpending() function sets the set of  pending
     signals  for  thread th_p to ti_sigpending. The value of the
     libc-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 0 if and only  if  all
     of the bits in ti_sigpending are 0.


     The td_thr_sigsetmask() function sets the signal mask of the
     thread  th_p  as  if  the thread had set its own signal mask
     with thr_sigsetmask(3C). 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(3C),  which  mask  or  unmask
     specific signals without affecting the mask state  of  other
     signals. To block or unblock specific signals,

         1.   stop either the entire process or the  thread  with
              td_thr_dbsuspend(),

         2.   determine the thread's existing signal mask by cal-
              ling td_thr_get_info(3C_DB),

         3.   modify the ti_sigmask member  of  the  td_thrinfo_t
              structure as desired, and

         4.   set the new signal mask withtd_thr_sigsetmask().





SunOS 5.11          Last change: 20 Oct 1998                    1






Threads Debugging Library Functions   td_thr_setsigpending(3C_DB)



RETURN VALUES
     TD_OK       The call completed successfully.


     TD_BADTH    An invalid thread handle was passed in.


     TD_DBERR    A call to one of the imported interface routines
                 failed.


     TD_ERR      A libc_db internal error occurred.


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



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


SEE ALSO
     libc_db(3LIB),                      td_thr_dbsuspend(3C_DB),
     td_thr_get_info(3C_DB), attributes(5)

























SunOS 5.11          Last change: 20 Oct 1998                    2