-/*
- * libudev - interface to udev device information
- *
- * Copyright (C) 2008-2010 Kay Sievers <kay.sievers@vrfy.org>
- *
- * 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 file is part of systemd.
+
+ Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
+
+ 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 <stdio.h>
#include <stdlib.h>
struct udev_list sysattr_list;
struct udev_list tags_list;
unsigned long long int seqnum;
- unsigned long long int usec_initialized;
+ usec_t usec_initialized;
int devlink_priority;
int refcount;
dev_t devnum;
return 0;
}
-static int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
+int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem)
{
free(udev_device->subsystem);
udev_device->subsystem = strdup(subsystem);
next = strchr(slink, ' ');
while (next != NULL) {
next[0] = '\0';
- udev_device_add_devlink(udev_device, slink, 0);
+ udev_device_add_devlink(udev_device, slink);
slink = &next[1];
next = strchr(slink, ' ');
}
if (slink[0] != '\0')
- udev_device_add_devlink(udev_device, slink, 0);
+ udev_device_add_devlink(udev_device, slink);
} else if (startswith(property, "TAGS=")) {
char tags[UTIL_PATH_SIZE];
char *next;
switch(line[0]) {
case 'S':
util_strscpyl(filename, sizeof(filename), "/dev/", val, NULL);
- udev_device_add_devlink(udev_device, filename, 0);
+ udev_device_add_devlink(udev_device, filename);
break;
case 'L':
udev_device_set_devlink_priority(udev_device, atoi(val));
return udev_device_new_from_syspath(udev, path);
}
-struct udev_device *udev_device_new_from_id_filename(struct udev *udev, char *id)
+/**
+ * udev_device_new_from_device_id:
+ * @udev: udev library context
+ * @id: text string identifying a kernel device
+ *
+ * Create new udev device, and fill in information from the sys
+ * device and the udev database entry. The device is looked-up
+ * by a special string:
+ * b8:2 - block device major:minor
+ * c128:1 - char device major:minor
+ * n3 - network device ifindex
+ * +sound:card29 - kernel driver core subsystem:device name
+ *
+ * The initial refcount is 1, and needs to be decremented to
+ * release the resources of the udev device.
+ *
+ * Returns: a new udev device, or #NULL, if it does not exist
+ **/
+_public_ struct udev_device *udev_device_new_from_device_id(struct udev *udev, char *id)
{
char type;
int maj, min;
*
* Get the instance number of the device.
*
- * Returns: the trailing number string of of the device name
+ * Returns: the trailing number string of the device name
**/
_public_ const char *udev_device_get_sysnum(struct udev_device *udev_device)
{
**/
_public_ unsigned long long int udev_device_get_usec_since_initialized(struct udev_device *udev_device)
{
- unsigned long long now_ts;
+ usec_t now_ts;
if (udev_device == NULL)
return 0;
udev_device_read_db(udev_device, NULL);
if (udev_device->usec_initialized == 0)
return 0;
- now_ts = now_usec();
+ now_ts = now(CLOCK_MONOTONIC);
if (now_ts == 0)
return 0;
return now_ts - udev_device->usec_initialized;
}
-unsigned long long udev_device_get_usec_initialized(struct udev_device *udev_device)
+usec_t udev_device_get_usec_initialized(struct udev_device *udev_device)
{
return udev_device->usec_initialized;
}
-void udev_device_set_usec_initialized(struct udev_device *udev_device, unsigned long long usec_initialized)
+void udev_device_set_usec_initialized(struct udev_device *udev_device, usec_t usec_initialized)
{
char num[32];
udev_device->usec_initialized = usec_initialized;
- snprintf(num, sizeof(num), "%llu", usec_initialized);
+ snprintf(num, sizeof(num), "%llu", (unsigned long long)usec_initialized);
udev_device_add_property(udev_device, "USEC_INITIALIZED", num);
}
return 0;
}
-int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink, int unique)
+int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink)
{
struct udev_list_entry *list_entry;
list_entry = udev_list_entry_add(&udev_device->devlinks_list, devlink, NULL);
if (list_entry == NULL)
return -ENOMEM;
- if (unique)
- udev_list_entry_set_num(list_entry, true);
return 0;
}