4 * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #include <sys/select.h>
31 static void log_fn(struct udev *udev,
32 int priority, const char *file, int line, const char *fn,
33 const char *format, va_list args)
35 printf("test-libudev: %s %s:%d ", fn, file, line);
36 vprintf(format, args);
39 static int print_devlinks_cb(struct udev_device *udev_device, const char *value, void *data)
41 printf("link: '%s'\n", value);
45 static int print_properties_cb(struct udev_device *udev_device, const char *key, const char *value, void *data)
47 printf("property: '%s=%s'\n", key, value);
51 static void print_device(struct udev_device *device)
56 printf("*** device: %p ***\n", device);
57 str = udev_device_get_devpath(device);
58 printf("devpath: '%s'\n", str);
59 str = udev_device_get_subsystem(device);
60 printf("subsystem: '%s'\n", str);
61 str = udev_device_get_devname(device);
62 printf("devname: '%s'\n", str);
63 count = udev_device_get_devlinks(device, print_devlinks_cb, NULL);
64 printf("found %i links\n", count);
65 count = udev_device_get_properties(device, print_properties_cb, NULL);
66 printf("found %i properties\n", count);
70 static int test_device(struct udev *udev, const char *devpath)
72 struct udev_device *device;
74 printf("looking at device: %s\n", devpath);
75 device = udev_device_new_from_devpath(udev, devpath);
77 printf("no device\n");
81 udev_device_unref(device);
85 static int devices_enum_cb(struct udev *udev,
86 const char *devpath, const char *subsystem, const char *name,
89 printf("device: '%s' (%s) '%s'\n", devpath, subsystem, name);
93 static int test_enumerate(struct udev *udev, const char *subsystem)
97 count = udev_devices_enumerate(udev, subsystem, devices_enum_cb, NULL);
98 printf("found %i devices\n\n", count);
102 static int test_monitor(struct udev *udev, const char *socket_path)
104 struct udev_monitor *udev_monitor;
108 udev_monitor = udev_monitor_new_from_socket(udev, socket_path);
109 if (udev_monitor == NULL) {
110 printf("no socket\n");
114 fd = udev_monitor_get_fd(udev_monitor);
118 struct udev_device *device;
121 FD_SET(STDIN_FILENO, &readfds);
122 FD_SET(fd, &readfds);
124 printf("waiting for events on %s, press ENTER to exit\n", socket_path);
125 fdcount = select(fd+1, &readfds, NULL, NULL, NULL);
126 printf("select fd count: %i\n", fdcount);
128 if (FD_ISSET(fd, &readfds)) {
129 device = udev_monitor_get_device(udev_monitor);
130 if (device == NULL) {
131 printf("no device from socket\n");
134 print_device(device);
135 udev_device_unref(device);
138 if (FD_ISSET(STDIN_FILENO, &readfds)) {
139 printf("exiting loop\n");
144 udev_monitor_unref(udev_monitor);
148 int main(int argc, char *argv[], char *envp[])
151 const char *devpath = "/devices/virtual/mem/null";
152 const char *subsystem = NULL;
153 const char *socket = "@/org/kernel/udev/monitor";
156 if (argv[1] != NULL) {
165 printf("context: %p\n", udev);
167 printf("no context\n");
170 udev_set_log_fn(udev, log_fn);
171 printf("set log: %p\n", log_fn);
173 str = udev_get_sys_path(udev);
174 printf("sys_path: '%s'\n", str);
175 str = udev_get_dev_path(udev);
176 printf("dev_path: '%s'\n", str);
178 test_device(udev, devpath);
179 test_enumerate(udev, subsystem);
180 test_monitor(udev, socket);