summaryrefslogtreecommitdiff
path: root/dbus-job.c
blob: fd84aa6ab38124f7812b3fc29a9b85618a83b453 (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
/*-*- Mode: C; c-basic-offset: 8 -*-*/

#include <errno.h>

#include "dbus.h"
#include "log.h"

static const char introspection[] =
        DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
        "<node>"
        " <interface name=\"org.freedesktop.systemd1.Job\">"
        "  <property name=\"Id\" type=\"u\" access=\"read\"/>"
        "  <property name=\"Unit\" type=\"(so)\" access=\"read\"/>"
        "  <property name=\"Type\" type=\"s\" access=\"read\"/>"
        "  <property name=\"State\" type=\"s\" access=\"read\"/>"
        " </interface>"
        BUS_PROPERTIES_INTERFACE
        BUS_INTROSPECTABLE_INTERFACE
        "</node>";

static int bus_job_append_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
        Job *j = data;
        const char *state;

        assert(m);
        assert(i);
        assert(property);
        assert(j);

        state = job_state_to_string(j->state);

        if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
                return -ENOMEM;

        return 0;
}

static int bus_job_append_type(Manager *m, DBusMessageIter *i, const char *property, void *data) {
        Job *j = data;
        const char *type;

        assert(m);
        assert(i);
        assert(property);
        assert(j);

        type = job_type_to_string(j->type);

        if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &type))
                return -ENOMEM;

        return 0;
}

static int bus_job_append_unit(Manager *m, DBusMessageIter *i, const char *property, void *data) {
        Job *j = data;
        DBusMessageIter sub;
        char *p;
        const char *id;

        assert(m);
        assert(i);
        assert(property);
        assert(j);

        if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
                return -ENOMEM;

        if (!(p = unit_dbus_path(j->unit)))
                return -ENOMEM;

        id = unit_id(j->unit);

        if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
            !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
                free(p);
                return -ENOMEM;
        }

        free(p);

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

        return 0;
}

static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusMessage *message) {

        const BusProperty properties[] = {
                { "org.freedesktop.systemd1.Job", "Id",    bus_property_append_uint32, "u",    &j->id },
                { "org.freedesktop.systemd1.Job", "State", bus_job_append_state,       "s",    j      },
                { "org.freedesktop.systemd1.Job", "Type",  bus_job_append_type,        "s",    j      },
                { "org.freedesktop.systemd1.Job", "Unit",  bus_job_append_unit,        "(so)", j      },
                { NULL, NULL, NULL, NULL, NULL }
        };

        return bus_default_message_handler(j->manager, message, introspection, properties);
}

DBusHandlerResult bus_job_message_handler(DBusConnection  *connection, DBusMessage  *message, void *data) {
        Manager *m = data;
        Job *j;
        int r;

        assert(connection);
        assert(message);
        assert(m);

        log_debug("Got D-Bus request: %s.%s() on %s",
                  dbus_message_get_interface(message),
                  dbus_message_get_member(message),
                  dbus_message_get_path(message));

        if ((r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j)) < 0) {

                if (r == -ENOMEM)
                        return DBUS_HANDLER_RESULT_NEED_MEMORY;

                if (r == -ENOENT)
                        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;

                return bus_send_error_reply(m, message, NULL, r);
        }

        return bus_job_message_dispatch(j, message);
}

const DBusObjectPathVTable bus_job_vtable = {
        .message_function = bus_job_message_handler
};