summaryrefslogtreecommitdiff
path: root/src/core/dbus-scope.c
blob: b20b6e7ffeb0c72570da909f8094590aa425d5fd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/***
  This file is part of systemd.

  Copyright 2013 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include "unit.h"
#include "scope.h"
#include "dbus-unit.h"
#include "dbus-cgroup.h"
#include "dbus-kill.h"
#include "dbus-scope.h"
#include "bus-util.h"

static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, scope_result, ScopeResult);

const sd_bus_vtable bus_scope_vtable[] = {
        SD_BUS_VTABLE_START(0),
        SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Scope, timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
        SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Scope, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
        SD_BUS_VTABLE_END
};

const char* const bus_scope_changing_properties[] = {
        "Result",
        NULL
};

static int bus_scope_set_transient_property(
                Scope *s,
                const char *name,
                sd_bus_message *message,
                UnitSetPropertiesMode mode,
                sd_bus_error *error) {

        int r;

        assert(s);
        assert(name);
        assert(message);

        if (streq(name, "PIDs")) {
                unsigned n = 0;
                uint32_t pid;

                r = set_ensure_allocated(&s->pids, trivial_hash_func, trivial_compare_func);
                if (r < 0)
                        return r;

                r = sd_bus_message_enter_container(message, 'a', "u");
                if (r < 0)
                        return r;

                while ((r = sd_bus_message_read(message, "u", &pid)) > 0) {

                        if (pid <= 1)
                                return -EINVAL;

                        if (mode != UNIT_CHECK) {
                                r = set_put(s->pids, LONG_TO_PTR(pid));
                                if (r < 0 && r != -EEXIST)
                                        return r;
                        }

                        n++;
                }
                if (r < 0)
                        return r;

                r = sd_bus_message_exit_container(message);
                if (r < 0)
                        return r;

                if (n <= 0)
                        return -EINVAL;

                return 1;

        } else if (streq(name, "TimeoutStopUSec")) {

                if (mode != UNIT_CHECK) {
                        r = sd_bus_message_read(message, "t", &s->timeout_stop_usec);
                        if (r < 0)
                                return r;

                        unit_write_drop_in_format(UNIT(s), mode, name, "[Scope]\nTimeoutStopSec=%lluus\n", (unsigned long long) s->timeout_stop_usec);
                } else {
                        r = sd_bus_message_skip(message, "t");
                        if (r < 0)
                                return r;
                }

                return 1;
        }

        return 0;
}

int bus_scope_set_property(
                Unit *u,
                const char *name,
                sd_bus_message *message,
                UnitSetPropertiesMode mode,
                sd_bus_error *error) {

        Scope *s = SCOPE(u);
        int r;

        assert(s);
        assert(name);
        assert(message);

        r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, mode, error);
        if (r != 0)
                return r;

        if (u->load_state == UNIT_STUB) {
                /* While we are created we still accept PIDs */

                r = bus_scope_set_transient_property(s, name, message, mode, error);
                if (r != 0)
                        return r;

                r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, mode, error);
                if (r != 0)
                        return r;
        }

        return 0;
}

int bus_scope_commit_properties(Unit *u) {
        assert(u);

        unit_realize_cgroup(u);
        return 0;
}