xref: /freebsd/sys/contrib/openzfs/cmd/zed/zed_conf.h (revision 4ac8f4067096a9d4a00e41cd53bd5c4fa295fd15)
1 /*
2  * This file is part of the ZFS Event Daemon (ZED).
3  *
4  * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
5  * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
6  * Refer to the OpenZFS git commit log for authoritative copyright attribution.
7  *
8  * The contents of this file are subject to the terms of the
9  * Common Development and Distribution License Version 1.0 (CDDL-1.0).
10  * You can obtain a copy of the license from the top-level file
11  * "OPENSOLARIS.LICENSE" or at <http://opensource.org/licenses/CDDL-1.0>.
12  * You may not use this file except in compliance with the license.
13  */
14 
15 #ifndef	ZED_CONF_H
16 #define	ZED_CONF_H
17 
18 #include <libzfs.h>
19 #include <stdint.h>
20 #include "zed_strings.h"
21 
22 struct zed_conf {
23 	char		*pid_file;		/* abs path to pid file */
24 	char		*zedlet_dir;		/* abs path to zedlet dir */
25 	char		*state_file;		/* abs path to state file */
26 
27 	libzfs_handle_t	*zfs_hdl;		/* handle to libzfs */
28 	zed_strings_t	*zedlets;		/* names of enabled zedlets */
29 	char		*path;		/* custom $PATH for zedlets to use */
30 
31 	int		pid_fd;			/* fd to pid file for lock */
32 	int		state_fd;		/* fd to state file */
33 	int		zevent_fd;		/* fd for access to zevents */
34 
35 	int16_t max_jobs;		/* max zedlets to run at one time */
36 	int32_t max_zevent_buf_len;	/* max size of kernel event list */
37 
38 	boolean_t	do_force:1;		/* true if force enabled */
39 	boolean_t	do_foreground:1;	/* true if run in foreground */
40 	boolean_t	do_memlock:1;		/* true if locking memory */
41 	boolean_t	do_verbose:1;		/* true if verbosity enabled */
42 	boolean_t	do_zero:1;		/* true if zeroing state */
43 	boolean_t	do_idle:1;		/* true if idle enabled */
44 };
45 
46 void zed_conf_init(struct zed_conf *zcp);
47 void zed_conf_destroy(struct zed_conf *zcp);
48 
49 void zed_conf_parse_opts(struct zed_conf *zcp, int argc, char **argv);
50 
51 int zed_conf_scan_dir(struct zed_conf *zcp);
52 
53 int zed_conf_write_pid(struct zed_conf *zcp);
54 
55 int zed_conf_open_state(struct zed_conf *zcp);
56 int zed_conf_read_state(struct zed_conf *zcp, uint64_t *eidp, int64_t etime[]);
57 int zed_conf_write_state(struct zed_conf *zcp, uint64_t eid, int64_t etime[]);
58 
59 #endif	/* !ZED_CONF_H */
60