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 When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
 TD_THR_SETSIGPENDING 3C_DB "Oct 20, 1998"
 NAME
td_thr_setsigpending, td_thr_sigsetmask - manage thread signals for libc_db

 SYNOPSIS


cc [ flag... ] file... -lc_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() 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 consistent, 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 calling
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().



 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 attributes:






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)