commit bash-20210209 snapshot

include/timer.h

@@ -0,0 +1,63 @@
+/* timer.h -- data structures used by the shell timers in lib/sh/timers.c */
+
+/* Copyright (C) 2021 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   Bash is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with Bash.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "bashjmp.h"
+typedef struct _shtimer
+{
+  struct timeval tmout;
+
+  int fd;
+  int flags;
+
+  int alrmflag;					/* should be set by alrm_handler */
+
+  SigHandler *alrm_handler;
+  SigHandler *old_handler;
+
+  procenv_t jmpenv;
+
+  void (*handler) (struct _shtimer *);		/* XXX - unused right now */
+  PTR_T	*data;					/* reserved */
+} sh_timer;
+
+#define SHTIMER_ALARM	0x01			/* mutually exclusive */
+#define SHTIMER_SELECT	0x02
+#define SHTIMER_LONGJMP	0x04
+
+#define SHTIMER_SIGSET	0x100
+
+extern sh_timer *shtimer_alloc (void);
+extern void shtimer_flush (sh_timer *);
+extern void shtimer_dispose (sh_timer *);
+
+extern void shtimer_set (sh_timer *, time_t, long);
+extern void shtimer_unset (sh_timer *);
+
+extern void shtimer_cleanup (sh_timer *);
+extern void shtimer_clear (sh_timer *);
+
+extern int shtimer_chktimeout (sh_timer *);
+
+extern int shtimer_select (sh_timer *);
+extern int shtimer_alrm (sh_timer *);