udev/lib/libudev-private.h

   1 /*
   2  * libudev - interface to udev device information
   3  *
   4  * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
   5  *
   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.
  10  *
  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.
  15  *
  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/>.
  18  */
  19
  20 #ifndef _LIBUDEV_PRIVATE_H_
  21 #define _LIBUDEV_PRIVATE_H_
  22
  23 #include "config.h"
  24
  25 #include <syslog.h>
  26 #include "libudev.h"
  27 #include "../udev.h"
  28
  29 #ifdef USE_LOG
  30 #ifdef USE_DEBUG
  31 #define dbg(udev, arg...) \
  32         udev_log(udev, LOG_DEBUG, __FILE__, __LINE__, __FUNCTION__, ## arg)
  33 #else
  34 #define dbg(format, arg...) do { } while (0)
  35 #endif /* USE_DEBUG */
  36
  37 #define info(udev, arg...) \
  38         udev_log(udev, LOG_INFO, __FILE__, __LINE__, __FUNCTION__, ## arg)
  39
  40 #define err(udev, arg...) \
  41         udev_log(udev, LOG_ERR, __FILE__, __LINE__, __FUNCTION__, ## arg)
  42 #else
  43 #define dbg(format, arg...) do { } while (0)
  44 #define info(format, arg...) do { } while (0)
  45 #define err(format, arg...) do { } while (0)
  46 #endif
  47
  48 /* libudev */
  49 void udev_log(struct udev *udev,
  50               int priority, const char *file, int line, const char *fn,
  51               const char *format, ...)
  52               __attribute__ ((format(printf, 6, 7)));
  53 extern struct udev_device *device_init(struct udev *udev);
  54 extern const char *udev_get_rules_path(struct udev *udev);
  55 extern int udev_get_run(struct udev *udev);
  56
  57 /* libudev-device */
  58 extern int device_set_devpath(struct udev_device *udev_device, const char *devpath);
  59 extern int device_set_subsystem(struct udev_device *udev_device, const char *subsystem);
  60 extern int device_set_devname(struct udev_device *udev_device, const char *devname);
  61 extern int device_add_devlink(struct udev_device *udev_device, const char *devlink);
  62 extern int device_add_property(struct udev_device *udev_device, const char *property);
  63
  64 /* udev_ctrl - daemon runtime setup */
  65 struct udev_ctrl;
  66 extern struct udev_ctrl *udev_ctrl_new_from_socket(struct udev *udev, const char *socket_path);
  67 extern int udev_ctrl_enable_receiving(struct udev_ctrl *uctrl);
  68 extern struct udev_ctrl *udev_ctrl_ref(struct udev_ctrl *uctrl);
  69 extern void udev_ctrl_unref(struct udev_ctrl *uctrl);
  70 extern struct udev *udev_ctrl_get_udev(struct udev_ctrl *uctrl);
  71 extern int udev_ctrl_get_fd(struct udev_ctrl *uctrl);
  72 extern int udev_ctrl_send_set_log_level(struct udev_ctrl *uctrl, int priority);
  73 extern int udev_ctrl_send_stop_exec_queue(struct udev_ctrl *uctrl);
  74 extern int udev_ctrl_send_start_exec_queue(struct udev_ctrl *uctrl);
  75 extern int udev_ctrl_send_reload_rules(struct udev_ctrl *uctrl);
  76 extern int udev_ctrl_send_set_env(struct udev_ctrl *uctrl, const char *key);
  77 extern int udev_ctrl_send_set_max_childs(struct udev_ctrl *uctrl, int count);
  78 extern int udev_ctrl_send_set_max_childs_running(struct udev_ctrl *uctrl, int count);
  79 struct udev_ctrl_msg;
  80 extern struct udev_ctrl_msg *udev_ctrl_msg(struct udev_ctrl *uctrl);
  81 extern struct udev_ctrl_msg *udev_ctrl_receive_msg(struct udev_ctrl *uctrl);
  82 extern struct udev_ctrl_msg *udev_ctrl_msg_ref(struct udev_ctrl_msg *ctrl_msg);
  83 extern void udev_ctrl_msg_unref(struct udev_ctrl_msg *ctrl_msg);
  84 extern int udev_ctrl_get_set_log_level(struct udev_ctrl_msg *ctrl_msg);
  85 extern int udev_ctrl_get_stop_exec_queue(struct udev_ctrl_msg *ctrl_msg);
  86 extern int udev_ctrl_get_start_exec_queue(struct udev_ctrl_msg *ctrl_msg);
  87 extern int udev_ctrl_get_reload_rules(struct udev_ctrl_msg *ctrl_msg);
  88 extern const char *udev_ctrl_get_set_env(struct udev_ctrl_msg *ctrl_msg);
  89 extern int udev_ctrl_get_set_max_childs(struct udev_ctrl_msg *ctrl_msg);
  90 extern int udev_ctrl_get_set_max_childs_running(struct udev_ctrl_msg *ctrl_msg);
  91
  92 /* libudev-utils */
  93 extern ssize_t util_get_sys_subsystem(struct udev *udev, const char *devpath, char *subsystem, size_t size);
  94 #endif