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// Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <brillo/udev/udev_device.h>
#include <libudev.h>
#include <base/logging.h>
namespace brillo {
UdevDevice::UdevDevice() : device_(nullptr) {}
UdevDevice::UdevDevice(udev_device* device) : device_(device) {
CHECK(device_);
udev_device_ref(device_);
}
UdevDevice::~UdevDevice() {
if (device_) {
udev_device_unref(device_);
device_ = nullptr;
}
}
std::unique_ptr<UdevDevice> UdevDevice::GetParent() const {
// udev_device_get_parent does not increase the reference count of the
// returned udev_device struct.
udev_device* parent_device = udev_device_get_parent(device_);
return parent_device ? std::make_unique<UdevDevice>(parent_device) : nullptr;
}
std::unique_ptr<UdevDevice> UdevDevice::GetParentWithSubsystemDeviceType(
const char* subsystem, const char* device_type) const {
// udev_device_get_parent_with_subsystem_devtype does not increase the
// reference count of the returned udev_device struct.
udev_device* parent_device = udev_device_get_parent_with_subsystem_devtype(
device_, subsystem, device_type);
return parent_device ? std::make_unique<UdevDevice>(parent_device) : nullptr;
}
bool UdevDevice::IsInitialized() const {
return udev_device_get_is_initialized(device_);
}
uint64_t UdevDevice::GetMicrosecondsSinceInitialized() const {
return udev_device_get_usec_since_initialized(device_);
}
uint64_t UdevDevice::GetSequenceNumber() const {
return udev_device_get_seqnum(device_);
}
const char* UdevDevice::GetDevicePath() const {
return udev_device_get_devpath(device_);
}
const char* UdevDevice::GetDeviceNode() const {
return udev_device_get_devnode(device_);
}
dev_t UdevDevice::GetDeviceNumber() const {
return udev_device_get_devnum(device_);
}
const char* UdevDevice::GetDeviceType() const {
return udev_device_get_devtype(device_);
}
const char* UdevDevice::GetDriver() const {
return udev_device_get_driver(device_);
}
const char* UdevDevice::GetSubsystem() const {
return udev_device_get_subsystem(device_);
}
const char* UdevDevice::GetSysPath() const {
return udev_device_get_syspath(device_);
}
const char* UdevDevice::GetSysName() const {
return udev_device_get_sysname(device_);
}
const char* UdevDevice::GetSysNumber() const {
return udev_device_get_sysnum(device_);
}
const char* UdevDevice::GetAction() const {
return udev_device_get_action(device_);
}
std::unique_ptr<UdevListEntry> UdevDevice::GetDeviceLinksListEntry() const {
udev_list_entry* list_entry = udev_device_get_devlinks_list_entry(device_);
return list_entry ? std::make_unique<UdevListEntry>(list_entry) : nullptr;
}
std::unique_ptr<UdevListEntry> UdevDevice::GetPropertiesListEntry() const {
udev_list_entry* list_entry = udev_device_get_properties_list_entry(device_);
return list_entry ? std::make_unique<UdevListEntry>(list_entry) : nullptr;
}
const char* UdevDevice::GetPropertyValue(const char* key) const {
return udev_device_get_property_value(device_, key);
}
std::unique_ptr<UdevListEntry> UdevDevice::GetTagsListEntry() const {
udev_list_entry* list_entry = udev_device_get_tags_list_entry(device_);
return list_entry ? std::make_unique<UdevListEntry>(list_entry) : nullptr;
}
std::unique_ptr<UdevListEntry> UdevDevice::GetSysAttributeListEntry() const {
udev_list_entry* list_entry = udev_device_get_sysattr_list_entry(device_);
return list_entry ? std::make_unique<UdevListEntry>(list_entry) : nullptr;
}
const char* UdevDevice::GetSysAttributeValue(const char* attribute) const {
return udev_device_get_sysattr_value(device_, attribute);
}
std::unique_ptr<UdevDevice> UdevDevice::Clone() {
return std::make_unique<UdevDevice>(device_);
}
} // namespace brillo
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