summaryrefslogtreecommitdiffstats
path: root/src/core/dbus-timer.c
blob: b396aed0478240df2637db62fe168c864bd2c74d (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
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd 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 2 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
  General Public License for more details.

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

#include <errno.h>

#include "dbus-unit.h"
#include "dbus-timer.h"
#include "dbus-execute.h"
#include "dbus-common.h"

#define BUS_TIMER_INTERFACE                                             \
        " <interface name=\"org.freedesktop.systemd1.Timer\">\n"        \
        "  <property name=\"Unit\" type=\"s\" access=\"read\"/>\n"      \
        "  <property name=\"Timers\" type=\"a(stt)\" access=\"read\"/>\n" \
        "  <property name=\"NextElapseUSec\" type=\"t\" access=\"read\"/>\n" \
        "  <property name=\"Result\" type=\"s\" access=\"read\"/>\n"    \
        " </interface>\n"

#define INTROSPECTION                                                   \
        DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
        "<node>\n"                                                      \
        BUS_UNIT_INTERFACE                                              \
        BUS_TIMER_INTERFACE                                             \
        BUS_PROPERTIES_INTERFACE                                        \
        BUS_PEER_INTERFACE                                              \
        BUS_INTROSPECTABLE_INTERFACE                                    \
        "</node>\n"

#define INTERFACES_LIST                              \
        BUS_UNIT_INTERFACES_LIST                     \
        "org.freedesktop.systemd1.Timer\0"

const char bus_timer_interface[] _introspect_("Timer") = BUS_TIMER_INTERFACE;

const char bus_timer_invalidating_properties[] =
        "Timers\0"
        "NextElapseUSec\0"
        "Result\0";

static int bus_timer_append_timers(DBusMessageIter *i, const char *property, void *data) {
        Timer *p = data;
        DBusMessageIter sub, sub2;
        TimerValue *k;

        assert(i);
        assert(property);
        assert(p);

        if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(stt)", &sub))
                return -ENOMEM;

        LIST_FOREACH(value, k, p->values) {
                char *buf;
                const char *t;
                size_t l;
                bool b;

                t = timer_base_to_string(k->base);
                assert(endswith(t, "Sec"));

                /* s/Sec/USec/ */
                l = strlen(t);
                if (!(buf = new(char, l+2)))
                        return -ENOMEM;

                memcpy(buf, t, l-3);
                memcpy(buf+l-3, "USec", 5);

                b = dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) &&
                        dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &buf) &&
                        dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT64, &k->value) &&
                        dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT64, &k->next_elapse) &&
                        dbus_message_iter_close_container(&sub, &sub2);

                free(buf);
                if (!b)
                        return -ENOMEM;
        }

        if (!dbus_message_iter_close_container(i, &sub))
                return -ENOMEM;

        return 0;
}

static int bus_timer_append_unit(DBusMessageIter *i, const char *property, void *data) {
        Unit *u = data;
        Timer *timer = TIMER(u);
        const char *t;

        assert(i);
        assert(property);
        assert(u);

        t = UNIT_DEREF(timer->unit) ? UNIT_DEREF(timer->unit)->id : "";

        return dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t) ? 0 : -ENOMEM;
}

static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_timer_append_timer_result, timer_result, TimerResult);

static const BusProperty bus_timer_properties[] = {
        { "Unit",           bus_timer_append_unit,        "s", 0 },
        { "Timers",         bus_timer_append_timers, "a(stt)", 0 },
        { "NextElapseUSec", bus_property_append_usec,     "t", offsetof(Timer, next_elapse) },
        { "Result",         bus_timer_append_timer_result,"s", offsetof(Timer, result)      },
        { NULL, }
};

DBusHandlerResult bus_timer_message_handler(Unit *u, DBusConnection *c, DBusMessage *message) {
        Timer *t = TIMER(u);
        const BusBoundProperties bps[] = {
                { "org.freedesktop.systemd1.Unit",  bus_unit_properties,  u },
                { "org.freedesktop.systemd1.Timer", bus_timer_properties, t },
                { NULL, }
        };

        return bus_default_message_handler(c, message, INTROSPECTION, INTERFACES_LIST, bps);
}