Add rpmsqIsCaught() for testing if a signal has been caught

2 files changed, 13 insertions, 0 deletions

diff --git a/rpmio/rpmsq.c b/rpmio/rpmsq.c
index 160329aa6..6d866266f 100644
--- a/rpmio/rpmsq.c
+++ b/rpmio/rpmsq.c
@@ -171,6 +171,11 @@ static struct rpmsig_s {
     { -1,	NULL },
 };
 
+int rpmsqIsCaught(int signum)
+{
+    return sigismember(&rpmsqCaught, signum);
+}
+
 void rpmsqAction(int signum,
 		void * info, void * context)
 {
diff --git a/rpmio/rpmsq.h b/rpmio/rpmsq.h
index 796ecb203..32246508e 100644
--- a/rpmio/rpmsq.h
+++ b/rpmio/rpmsq.h
@@ -54,6 +54,14 @@ struct rpmsqElem {
 extern sigset_t rpmsqCaught;
 
 /** \ingroup rpmsq
+ * Test if given signal has been caught (while signals blocked).
+ * Similar to sigismember() but operates on internal signal queue.
+ * @param signum	signal to test for
+ * @return		1 if caught, 0 if not and -1 on error
+ */
+int rpmsqIsCaught(int signum);
+
+/** \ingroup rpmsq
  * Default signal handler.
  * @param signum	signal number
  * @param info		(siginfo_t) signal info