cmd/zed/zed_conf.h

   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 */