File Doc Category Size Date Package
StatFs.java API Doc Android 5.1 API 4312 Thu Mar 12 22:22:10 GMT 2015 android.os

StatFs

java.lang.Object

public class StatFs extends Object

Retrieve overall information about the space on a filesystem. This is a wrapper for Unix statvfs().

Fields Summary
private android.system.StructStatVfs
mStat
Constructors Summary
public StatFs(String path)
Construct a new StatFs for looking at the stats of the filesystem at {@code path}. Upon construction, the stat of the file system will be performed, and the values retrieved available from the methods on this class.
param
path path in the desired file system to stat.
mStat = doStat(path);
Methods Summary
private static android.system.StructStatVfs doStat(java.lang.String path)
try { return Os.statvfs(path); } catch (ErrnoException e) { throw new IllegalArgumentException("Invalid path: " + path, e); }
public int getAvailableBlocks()
deprecated
Use {@link #getAvailableBlocksLong()} instead.
return (int) mStat.f_bavail;
public long getAvailableBlocksLong()
The number of blocks that are free on the file system and available to applications. This corresponds to the Unix {@code statvfs.f_bavail} field.
return mStat.f_bavail;
public long getAvailableBytes()
The number of bytes that are free on the file system and available to applications.
return mStat.f_bavail * mStat.f_bsize;
public int getBlockCount()
deprecated
Use {@link #getBlockCountLong()} instead.
return (int) mStat.f_blocks;
public long getBlockCountLong()
The total number of blocks on the file system. This corresponds to the Unix {@code statvfs.f_blocks} field.
return mStat.f_blocks;
public int getBlockSize()
deprecated
Use {@link #getBlockSizeLong()} instead.
return (int) mStat.f_bsize;
public long getBlockSizeLong()
The size, in bytes, of a block on the file system. This corresponds to the Unix {@code statvfs.f_bsize} field.
return mStat.f_bsize;
public int getFreeBlocks()
deprecated
Use {@link #getFreeBlocksLong()} instead.
return (int) mStat.f_bfree;
public long getFreeBlocksLong()
The total number of blocks that are free on the file system, including reserved blocks (that are not available to normal applications). This corresponds to the Unix {@code statvfs.f_bfree} field. Most applications will want to use {@link #getAvailableBlocks()} instead.
return mStat.f_bfree;
public long getFreeBytes()
The number of bytes that are free on the file system, including reserved blocks (that are not available to normal applications). Most applications will want to use {@link #getAvailableBytes()} instead.
return mStat.f_bfree * mStat.f_bsize;
public long getTotalBytes()
The total number of bytes supported by the file system.
return mStat.f_blocks * mStat.f_bsize;
public void restat(java.lang.String path)
Perform a restat of the file system referenced by this object. This is the same as re-constructing the object with the same file system path, and the new stat values are available upon return.
mStat = doStat(path);