Added some more signatures

src/disk.h

@@ -6,6 +6,18 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+/// @brief The information about a disk.
+typedef struct {
+	/// @brief The virtual size of the disk.
+	uint64_t virtual_size;
+
+	/// @brief The actual size of the disk.
+	uint64_t actual_size;
+
+	/// @brief The path to the backing file of the disk. This is NULL if the disk is not backed.
+	char* backing_file;
+} DiskInfo;
+
 /// @brief Creates an empty disk at the given path, with the given size and with the given permissions.
 /// @param path The path to the disk to create.
 /// @param size The size of the disk to create.
@@ -30,3 +42,13 @@ Result trim_disk(const char* path);
 /// @param backing_disk The new path to the backing disk.
 /// @return The result of the operation.
 Result rebase_disk(const char* path, const char* backing_disk);
+
+/// @brief Gathers information about a disk.
+/// @param path The path to the disk to gather information about.
+/// @param out_info The information about the disk.
+/// @return The result of the operation.
+Result get_disk_info(const char* path, DiskInfo* out_info);
+
+/// @brief Frees the resources used by the given disk information.
+/// @param info The disk information to free.
+void free_disk_info(DiskInfo* info);