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- // Copyright 2014 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef DEVICE_UDEV_LINUX_UDEV_H_
- #define DEVICE_UDEV_LINUX_UDEV_H_
- #include <stdarg.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <string>
- #if !defined(USE_UDEV)
- #error "USE_UDEV not defined"
- #endif
- // Adapted from libudev.h.
- #define udev_list_entry_foreach(list_entry, first_entry) \
- for (list_entry = first_entry; list_entry != NULL; \
- list_entry = ::device::udev_list_entry_get_next(list_entry))
- // Forward declarations of opaque structs.
- struct udev;
- struct udev_device;
- struct udev_enumerate;
- struct udev_list_entry;
- struct udev_monitor;
- namespace device {
- const char* udev_device_get_action(udev_device* udev_device);
- const char* udev_device_get_devnode(udev_device* udev_device);
- const char* udev_device_get_devtype(udev_device* udev_device);
- udev_device* udev_device_get_parent(udev_device* udev_device);
- udev_device* udev_device_get_parent_with_subsystem_devtype(
- udev_device* udev_device,
- const char* subsystem,
- const char* devtype);
- udev_list_entry* udev_device_get_properties_list_entry(
- struct udev_device* udev_device);
- const char* udev_device_get_property_value(udev_device* udev_device,
- const char* key);
- const char* udev_device_get_subsystem(udev_device* udev_device);
- const char* udev_device_get_sysattr_value(udev_device* udev_device,
- const char* sysattr);
- const char* udev_device_get_sysname(udev_device* udev_device);
- const char* udev_device_get_syspath(udev_device* udev_device);
- udev_device* udev_device_new_from_devnum(udev* udev, char type, dev_t devnum);
- udev_device* udev_device_new_from_subsystem_sysname(
- udev* udev,
- const char* subsystem,
- const char* sysname);
- udev_device* udev_device_new_from_syspath(udev* udev, const char* syspath);
- void udev_device_unref(udev_device* udev_device);
- int udev_enumerate_add_match_subsystem(udev_enumerate* udev_enumerate,
- const char* subsystem);
- udev_list_entry* udev_enumerate_get_list_entry(udev_enumerate* udev_enumerate);
- udev_enumerate* udev_enumerate_new(udev* udev);
- int udev_enumerate_scan_devices(udev_enumerate* udev_enumerate);
- void udev_enumerate_unref(udev_enumerate* udev_enumerate);
- udev_list_entry* udev_list_entry_get_next(udev_list_entry* list_entry);
- const char* udev_list_entry_get_name(udev_list_entry* list_entry);
- int udev_monitor_enable_receiving(udev_monitor* udev_monitor);
- int udev_monitor_filter_add_match_subsystem_devtype(udev_monitor* udev_monitor,
- const char* subsystem,
- const char* devtype);
- int udev_monitor_get_fd(udev_monitor* udev_monitor);
- udev_monitor* udev_monitor_new_from_netlink(udev* udev, const char* name);
- udev_device* udev_monitor_receive_device(udev_monitor* udev_monitor);
- void udev_monitor_unref(udev_monitor* udev_monitor);
- udev* udev_new();
- void udev_set_log_fn(
- struct udev* udev,
- void (*log_fn)(struct udev* udev, int priority, const char* file, int line,
- const char* fn, const char* format, va_list args));
- void udev_set_log_priority(struct udev* udev, int priority);
- void udev_unref(udev* udev);
- // Calls udev_device_get_property_value() and replaces missing values with
- // the empty string.
- std::string UdevDeviceGetPropertyValue(udev_device* udev_device,
- const char* key);
- // Calls udev_device_get_sysattr_value() and replaces missing values with
- // the empty string.
- std::string UdevDeviceGetSysattrValue(udev_device* udev_device,
- const char* key);
- // Walks up the chain of parent devices calling udev_device_get_sysattr_value()
- // until a value is found. If no value is found, an empty string is returned.
- std::string UdevDeviceRecursiveGetSysattrValue(udev_device* udev_device,
- const char* key);
- // Decodes udev-encoded string. Useful for decoding "*_ENC" udev properties.
- std::string UdevDecodeString(const std::string& encoded);
- } // namespace device
- #endif // DEVICE_UDEV_LINUX_UDEV_H_
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