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-rw-r--r--include/timer.h64
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diff --git a/include/timer.h b/include/timer.h
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+/* 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;
+
+ int (*tm_handler) (struct _shtimer *); /* called on timeout if set */
+ PTR_T *data; /* reserved */
+} sh_timer;
+
+#define SHTIMER_ALARM 0x01 /* mutually exclusive */
+#define SHTIMER_SELECT 0x02
+#define SHTIMER_LONGJMP 0x04
+
+#define SHTIMER_SIGSET 0x100
+#define SHTIMER_ALRMSET 0x200
+
+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 *);