| // Copyright 2021 The ChromiumOS Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SPACED_DISK_USAGE_IMPL_H_ |
| #define SPACED_DISK_USAGE_IMPL_H_ |
| |
| #include <sys/quota.h> |
| #include <sys/statvfs.h> |
| |
| #include <memory> |
| #include <optional> |
| #include <utility> |
| |
| #include <base/task/task_runner.h> |
| #include <base/files/file_path.h> |
| #include <brillo/blkdev_utils/lvm.h> |
| #include <brillo/brillo_export.h> |
| |
| #include "spaced/disk_usage.h" |
| |
| namespace spaced { |
| |
| class BRILLO_EXPORT DiskUsageUtilImpl : public DiskUsageUtil { |
| public: |
| DiskUsageUtilImpl(const base::FilePath& rootdev, |
| std::optional<brillo::Thinpool> thinpool); |
| ~DiskUsageUtilImpl() override = default; |
| |
| int64_t GetFreeDiskSpace(const base::FilePath& path) override; |
| int64_t GetTotalDiskSpace(const base::FilePath& path) override; |
| int64_t GetRootDeviceSize() override; |
| bool IsQuotaSupported(const base::FilePath& path) override; |
| int64_t GetQuotaCurrentSpaceForUid(const base::FilePath& path, |
| uint32_t uid) override; |
| int64_t GetQuotaCurrentSpaceForGid(const base::FilePath& path, |
| uint32_t gid) override; |
| int64_t GetQuotaCurrentSpaceForProjectId(const base::FilePath& path, |
| uint32_t project_id) override; |
| |
| protected: |
| // Runs statvfs() on a given path. |
| virtual int StatVFS(const base::FilePath& path, struct statvfs* st); |
| |
| // Runs quotactl() on the given device. |
| virtual int QuotaCtl(int cmd, |
| const base::FilePath& device, |
| int id, |
| struct dqblk* dq); |
| |
| // Get backing device for a given file path. |
| virtual base::FilePath GetDevice(const base::FilePath& path); |
| |
| // Gets the block device size in bytes for a given device. |
| virtual int64_t GetBlockDeviceSize(const base::FilePath& device); |
| |
| private: |
| int64_t GetQuotaCurrentSpaceForId(const base::FilePath& path, |
| uint32_t id, |
| int quota_type); |
| |
| const base::FilePath rootdev_; |
| std::optional<brillo::Thinpool> thinpool_; |
| }; |
| |
| } // namespace spaced |
| |
| #endif // SPACED_DISK_USAGE_IMPL_H_ |