DiskUsage Class Reference
#include <DiskUsage.h>
Static Public Member Functions | |
| static Params::UBigInt | GetSize (const char *) |
| static void | SetBlockSize (unsigned bs) |
| static Params::UBigInt | AllocationSize (Params::UBigInt) |
| static Params::Size_t | AllocationSize (Params::Size_t size) |
Static Private Member Functions | |
| static Params::UBigInt | DepthFirstTraversal (const char *) |
Static Private Attributes | |
| static unsigned | m_block_size |
| static const int | m_max_path_name = 4096 |
Detailed Description
Provides a method to extract sizes of a given file or directory (recursively).This class uses POSIX functions (lstat, chdir, opendir, closedir, S_ISDIR) and POSIX structures (stat, dirent). So, this class requires a POSIX-compatible environment to work.
Member Function Documentation
| Params::UBigInt DiskUsage::GetSize | ( | const char * | filename | ) | [static] |
Returns the size of the given file or directory.
If the given file/directory could not be read then GetSize returns "0". Note: 0-sized files returns m_block_size.
References AllocationSize(), DepthFirstTraversal(), and m_max_path_name.
| static void DiskUsage::SetBlockSize | ( | unsigned | bs | ) | [inline, static] |
Set the block size used by AllocationSize(Params::UBigInt).
References m_block_size.
Referenced by Input::Input().
| Params::UBigInt DiskUsage::AllocationSize | ( | Params::UBigInt | size | ) | [static] |
This function returns the real size (allocated) of a given "size".
When size=0 then it occupies exactly m_block_size.
References m_block_size.
Referenced by AllocationSize(), DepthFirstTraversal(), and GetSize().
| static Params::Size_t DiskUsage::AllocationSize | ( | Params::Size_t | size | ) | [inline, static] |
Same as AllocationSize(Params::UBigInt) but casts the given size to UBigInt datatype.
References AllocationSize().
| Params::UBigInt DiskUsage::DepthFirstTraversal | ( | const char * | currdir | ) | [static, private] |
This function travels a given directory recursively.
- Returns:
- Total size of the given directory.
References AllocationSize().
Referenced by GetSize().
Member Data Documentation
unsigned DiskUsage::m_block_size [static, private] |
The smallest amount of bytes a file/directory can occupy.
Referenced by AllocationSize(), and SetBlockSize().
const int DiskUsage::m_max_path_name = 4096 [static, private] |
Maximum size of a path name. This variable is used by the getcwd function.
Referenced by GetSize().
The documentation for this class was generated from the following files: