init

pg_include/libpq/pqsignal.h

@@ -0,0 +1,51 @@
+/*-------------------------------------------------------------------------
+ *
+ * pqsignal.h
+ *	  prototypes for the reliable BSD-style signal(2) routine.
+ *
+ *
+ * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/libpq/pqsignal.h
+ *
+ * NOTES
+ *	  This shouldn't be in libpq, but the monitor and some other
+ *	  things need it...
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PQSIGNAL_H
+#define PQSIGNAL_H
+
+#include <signal.h>
+
+#ifdef HAVE_SIGPROCMASK
+extern sigset_t UnBlockSig,
+			BlockSig,
+			StartupBlockSig;
+
+#define PG_SETMASK(mask)	sigprocmask(SIG_SETMASK, mask, NULL)
+#else							/* not HAVE_SIGPROCMASK */
+extern int	UnBlockSig,
+			BlockSig,
+			StartupBlockSig;
+
+#ifndef WIN32
+#define PG_SETMASK(mask)	sigsetmask(*((int*)(mask)))
+#else
+#define PG_SETMASK(mask)		pqsigsetmask(*((int*)(mask)))
+int			pqsigsetmask(int mask);
+#endif
+
+#define sigaddset(set, signum)	(*(set) |= (sigmask(signum)))
+#define sigdelset(set, signum)	(*(set) &= ~(sigmask(signum)))
+#endif   /* not HAVE_SIGPROCMASK */
+
+typedef void (*pqsigfunc) (int);
+
+extern void pqinitmask(void);
+
+extern pqsigfunc pqsignal(int signo, pqsigfunc func);
+
+#endif   /* PQSIGNAL_H */