[newlib-cygwin] Cygwin: wait_sig: allow to compute process-wide mask of pending signals
Corinna Vinschen
corinna@sourceware.org
Tue Mar 1 15:24:40 GMT 2022
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=195169186bfd58e45aaa31236575fb9d5957adad
commit 195169186bfd58e45aaa31236575fb9d5957adad
Author: Corinna Vinschen <corinna@vinschen.de>
Date: Tue Mar 1 16:14:39 2022 +0100
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>
Diff:
---
winsup/cygwin/sigproc.cc | 20 ++++++++++++++++++++
winsup/cygwin/sigproc.h | 3 ++-
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc
index edfdffd7c..449777cda 100644
--- a/winsup/cygwin/sigproc.cc
+++ b/winsup/cygwin/sigproc.cc
@@ -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;
diff --git a/winsup/cygwin/sigproc.h b/winsup/cygwin/sigproc.h
index 2a3d248d1..23287c85b 100644
--- a/winsup/cygwin/sigproc.h
+++ b/winsup/cygwin/sigproc.h
@@ -22,7 +22,8 @@ enum
__SIGHOLD = -(_NSIG + 7),
__SIGNOHOLD = -(_NSIG + 8),
__SIGSETPGRP = -(_NSIG + 9),
- __SIGTHREADEXIT = -(_NSIG + 10)
+ __SIGTHREADEXIT = -(_NSIG + 10),
+ __SIGPENDINGALL = -(_NSIG + 11),
};
#endif
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