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
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*******************************************************************************
* pxgsettings - A helper binary to query gsettings
* Copyright (C) 2006 Nathaniel McCallum <nathaniel@natemccallum.com>
* Copyright (C) 2011 Dominique Leuenberger <dominique@leuenberger.net>
*
* This library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#include <cstdio>
#include <unistd.h>
#include <signal.h>
#include <stdexcept>
#include <glib.h>
#include <glib-object.h>
#include <gio/gio.h>
using namespace std;
static GMainLoop* loop = NULL;
static int print_value(GVariant *value, const char *suffix) {
if (!value) return 0;
if (g_variant_is_of_type(value, G_VARIANT_TYPE_STRING)) {
return printf("%s%s", g_variant_get_string(value, NULL), suffix);
}
else if(g_variant_is_of_type(value, G_VARIANT_TYPE_INT32)) {
return printf("%d%s", g_variant_get_int32(value), suffix);
}
else if(g_variant_is_of_type(value, G_VARIANT_TYPE_BOOLEAN)) {
gboolean result;
result = g_variant_get_boolean(value);
return printf("%s%s", result ? "true" : "false", suffix);
}
else if(g_variant_is_of_type(value, G_VARIANT_TYPE_ARRAY)) {
int count;
const gchar** items;
items = g_variant_get_strv(value, NULL);
for (count=0; items[count]; count++) {
printf("%s%s", count < 1 ? "" : ",", items[count]);
}
printf("%s", suffix);
return count;
}
else {
throw exception();
}
return 0;
}
static void on_value_change(GSettings *settings, const gchar *key, gpointer user_data) {
printf("%s/%s\t", (gchar *)user_data, key);
print_value(g_settings_get_value(settings, key), "\n");
}
static void on_sig(int /*signal*/) {
g_main_loop_quit(loop);
}
static gboolean err(GIOChannel* /*source*/, GIOCondition /*condition*/, gpointer /*data*/) {
g_main_loop_quit(loop);
return false;
}
static gboolean in(GIOChannel *source, GIOCondition condition, gpointer data) {
gchar *key, *val;
GIOStatus st = g_io_channel_read_line(source, &key, NULL, NULL, NULL);
// Remove the trailing '\n'
for (int i=0 ; key && key[i] ; i++)
if (key[i] == '\n')
key[i] = '\0';
// If we were successful
if (key && st == G_IO_STATUS_NORMAL) {
if (!g_strrstr(key, "\t"))
goto exit;
val = g_strrstr(key, "\t") + 1;
*(val-1) = '\0';
g_free(key);
return true;
}
else if (key && st == G_IO_STATUS_AGAIN) {
g_free(key);
return in(source, condition, data);
}
exit:
g_free(key);
return err(source, condition, data);
}
int main(int argc, char **argv) {
if (argc < 2) return 1;
// Register sighup handler
if (signal(SIGHUP, on_sig) == SIG_ERR || signal(SIGPIPE, on_sig) == SIG_ERR || signal(SIGABRT, on_sig) == SIG_ERR) {
fprintf(stderr, "Unable to trap signals!");
return 2;
}
// Switch stdout to line buffering
if (setvbuf(stdout, NULL, _IOLBF, 0)) {
fprintf(stderr, "Unable to switch stdout to line buffering!");
return 3;
}
// Switch stdin to line buffering
if (setvbuf(stdin, NULL, _IOLBF, 0)) {
fprintf(stderr, "Unable to switch stdin to line buffering!");
return 4;
}
// Init
g_type_init();
// Get the main loop
loop = g_main_loop_new(NULL, false);
// Setup our GIO Channels
GIOChannel* inchan = g_io_channel_unix_new(fileno(stdin));
GIOChannel* outchan = g_io_channel_unix_new(fileno(stdout));
g_io_add_watch(inchan, G_IO_IN, in, NULL);
g_io_add_watch(inchan, G_IO_PRI, in, NULL);
g_io_add_watch(inchan, G_IO_ERR, err, NULL);
g_io_add_watch(inchan, G_IO_HUP, err, NULL);
g_io_add_watch(outchan, G_IO_ERR, err, NULL);
g_io_add_watch(outchan, G_IO_HUP, err, NULL);
// Get GSettings obkecy
GSettings* settings;
for (int i=1; i<argc; i++) {
settings = g_settings_new(argv[i]);
gchar** keys = g_settings_list_keys(settings);
for (int j=0; keys[j]; on_value_change(settings, keys[j++],argv[i] ));
g_signal_connect(settings, "changed::", (GCallback) on_value_change, argv[i]);
}
g_main_loop_run(loop);
// Cleanup
g_object_unref(settings);
g_io_channel_shutdown(inchan, FALSE, NULL);
g_io_channel_shutdown(outchan, FALSE, NULL);
g_io_channel_unref(inchan);
g_io_channel_unref(outchan);
g_main_loop_unref(loop);
}
|
