Adding upstream version 13.4.upstream/13.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/include/libpq/pqsignal.h b/src/include/libpq/pqsignal.h
new file mode 100644
index 0000000..695c4dc
--- /dev/null
+++ b/src/include/libpq/pqsignal.h
@@ -0,0 +1,42 @@
+/*-------------------------------------------------------------------------
+ *
+ * pqsignal.h
+ *	  Backend signal(2) support (see also src/port/pqsignal.c)
+ *
+ * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/libpq/pqsignal.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PQSIGNAL_H
+#define PQSIGNAL_H
+
+#include <signal.h>
+
+#ifndef WIN32
+#define PG_SETMASK(mask)	sigprocmask(SIG_SETMASK, mask, NULL)
+#else
+/* Emulate POSIX sigset_t APIs on Windows */
+typedef int sigset_t;
+
+extern int	pqsigsetmask(int mask);
+
+#define PG_SETMASK(mask)		pqsigsetmask(*(mask))
+#define sigemptyset(set)		(*(set) = 0)
+#define sigfillset(set)			(*(set) = ~0)
+#define sigaddset(set, signum)	(*(set) |= (sigmask(signum)))
+#define sigdelset(set, signum)	(*(set) &= ~(sigmask(signum)))
+#endif							/* WIN32 */
+
+extern sigset_t UnBlockSig,
+			BlockSig,
+			StartupBlockSig;
+
+extern void pqinitmask(void);
+
+/* pqsigfunc is declared in src/include/port.h */
+extern pqsigfunc pqsignal_pm(int signo, pqsigfunc func);
+
+#endif							/* PQSIGNAL_H */