chiark / gitweb /
notify: add minimal readiness/status protocol for spawned daemons
[elogind.git] / src / mount.h
1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
2
3 #ifndef foomounthfoo
4 #define foomounthfoo
5
6 /***
7   This file is part of systemd.
8
9   Copyright 2010 Lennart Poettering
10
11   systemd is free software; you can redistribute it and/or modify it
12   under the terms of the GNU General Public License as published by
13   the Free Software Foundation; either version 2 of the License, or
14   (at your option) any later version.
15
16   systemd is distributed in the hope that it will be useful, but
17   WITHOUT ANY WARRANTY; without even the implied warranty of
18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19   General Public License for more details.
20
21   You should have received a copy of the GNU General Public License
22   along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 ***/
24
25 typedef struct Mount Mount;
26
27 #include "unit.h"
28
29 typedef enum MountState {
30         MOUNT_DEAD,
31         MOUNT_MOUNTING,               /* /bin/mount is running, but the mount is not done yet. */
32         MOUNT_MOUNTING_DONE,          /* /bin/mount is running, and the mount is done. */
33         MOUNT_MOUNTED,
34         MOUNT_REMOUNTING,
35         MOUNT_UNMOUNTING,
36         MOUNT_MOUNTING_SIGTERM,
37         MOUNT_MOUNTING_SIGKILL,
38         MOUNT_REMOUNTING_SIGTERM,
39         MOUNT_REMOUNTING_SIGKILL,
40         MOUNT_UNMOUNTING_SIGTERM,
41         MOUNT_UNMOUNTING_SIGKILL,
42         MOUNT_MAINTAINANCE,
43         _MOUNT_STATE_MAX,
44         _MOUNT_STATE_INVALID = -1
45 } MountState;
46
47 typedef enum MountExecCommand {
48         MOUNT_EXEC_MOUNT,
49         MOUNT_EXEC_UNMOUNT,
50         MOUNT_EXEC_REMOUNT,
51         _MOUNT_EXEC_COMMAND_MAX,
52         _MOUNT_EXEC_COMMAND_INVALID = -1
53 } MountExecCommand;
54
55 typedef struct MountParameters {
56         char *what;
57         char *options;
58         char *fstype;
59 } MountParameters;
60
61 struct Mount {
62         Meta meta;
63
64         char *where;
65
66         MountParameters parameters_etc_fstab;
67         MountParameters parameters_proc_self_mountinfo;
68         MountParameters parameters_fragment;
69
70         bool from_etc_fstab:1;
71         bool from_proc_self_mountinfo:1;
72         bool from_fragment:1;
73
74         /* Used while looking for mount points that vanished or got
75          * added from/to /proc/self/mountinfo */
76         bool is_mounted:1;
77         bool just_mounted:1;
78         bool just_changed:1;
79
80         bool failure:1;
81
82         usec_t timeout_usec;
83
84         ExecCommand exec_command[_MOUNT_EXEC_COMMAND_MAX];
85         ExecContext exec_context;
86
87         MountState state, deserialized_state;
88
89         KillMode kill_mode;
90
91         ExecCommand* control_command;
92         MountExecCommand control_command_id;
93         pid_t control_pid;
94
95         Watch timer_watch;
96 };
97
98 extern const UnitVTable mount_vtable;
99
100 void mount_fd_event(Manager *m, int events);
101
102 int mount_path_is_mounted(Manager *m, const char* path);
103
104 const char* mount_state_to_string(MountState i);
105 MountState mount_state_from_string(const char *s);
106
107 const char* mount_exec_command_to_string(MountExecCommand i);
108 MountExecCommand mount_exec_command_from_string(const char *s);
109
110 #endif