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Cygwin: wait_sig: allow to compute process-wide mask of pending signals 

Add a signal __SIGPENDINGALL to allow computing the mask of all
currently pending signals.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2022-03-01 16:14:39 +01:00
parent 05e7a60dd7
commit 195169186b
2 changed files with 22 additions and 1 deletions
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20
winsup/cygwin/sigproc.cc
View File

@ -1371,6 +1371,26 @@ wait_sig (VOID *)
case __SIGSTRACE:
strace.activate (false);
break;
case __SIGPENDINGALL:
{
unsigned bit;
bool issig_wait;
*pack.mask = 0;
while ((q = q->next))
{
if (q->sigtls->sigmask & (bit = SIGTOMASK (q->si.si_signo)))
{
tl_entry = cygheap->find_tls (q->si.si_signo, issig_wait);
if (tl_entry)
{
*pack.mask |= bit;
cygheap->unlock_tls (tl_entry);
}
}
}
}
break;
case __SIGPENDING:
{
unsigned bit;

3
winsup/cygwin/sigproc.h
View File

@ -22,7 +22,8 @@ enum
__SIGHOLD = -(_NSIG + 7),
__SIGNOHOLD = -(_NSIG + 8),
__SIGSETPGRP = -(_NSIG + 9),
__SIGTHREADEXIT = -(_NSIG + 10)
__SIGTHREADEXIT = -(_NSIG + 10),
__SIGPENDINGALL = -(_NSIG + 11),
};
#endif