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Commit b65ce576 authored by Jeff Sharkey's avatar Jeff Sharkey
Browse files

Expose longer statfs values, add derived values. 

Since fsblkcnt_t is 8 bytes, provide methods to access larger value
instead of casting to int.  This would start being an issue around
8TB filesystems.

Also add convenience methods to calculate values in bytes.

Change-Id: Ib924425d8d6d82785466f611ca71800cc1e952b6
parent 9de56d22

api/current.txt

+6 −0
Original line number Diff line number Diff line
@@ -16597,9 +16597,15 @@ package android.os { 
  public class StatFs {

    ctor public StatFs(java.lang.String);

    method public int getAvailableBlocks();

    method public long getAvailableBlocksLong();

    method public long getAvailableBytes();

    method public int getBlockCount();

    method public long getBlockCountLong();

    method public int getBlockSize();

    method public long getBlockSizeLong();

    method public int getFreeBlocks();

    method public long getFreeBlocksLong();

    method public long getFreeBytes();

    method public void restat(java.lang.String);

  }

























core/java/android/os/StatFs.java



+50
−0






























Original line number
Diff line number
Diff line








@@ -64,6 +64,14 @@ public class StatFs {













        return (int) mStat.f_bsize;















    }





























    /**













     * The size, in bytes, of a block on the file system. This corresponds to













     * the Unix {@code statfs.f_bsize} field.













     */













    public long getBlockSizeLong() {













        return mStat.f_bsize;













    }





























    /**















     * The total number of blocks on the file system. This corresponds to the















     * Unix {@code statfs.f_blocks} field.









@@ -72,6 +80,14 @@ public class StatFs {













        return (int) mStat.f_blocks;















    }





























    /**













     * The size, in bytes, of a block on the file system. This corresponds to













     * the Unix {@code statfs.f_bsize} field.













     */













    public long getBlockCountLong() {













        return mStat.f_blocks;













    }





























    /**















     * The total number of blocks that are free on the file system, including















     * reserved blocks (that are not available to normal applications). This









@@ -82,6 +98,24 @@ public class StatFs {













        return (int) mStat.f_bfree;















    }





























    /**













     * 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 statfs.f_bfree} field. Most applications













     * will want to use {@link #getAvailableBlocks()} instead.













     */













    public long getFreeBlocksLong() {













        return mStat.f_bfree;













    }



























    /**













     * The number of bytes that are free on the file system, including













     * reserved blocks (that are not available to normal applications).













     */













    public long getFreeBytes() {













        return mStat.f_bfree * mStat.f_bsize;













    }





























    /**















     * The number of blocks that are free on the file system and available to















     * applications. This corresponds to the Unix {@code statfs.f_bavail} field.









@@ -89,4 +123,20 @@ public class StatFs {













    public int getAvailableBlocks() {















        return (int) mStat.f_bavail;















    }



























    /**













     * The number of blocks that are free on the file system and available to













     * applications. This corresponds to the Unix {@code statfs.f_bavail} field.













     */













    public long getAvailableBlocksLong() {













        return mStat.f_bavail;













    }



























    /**













     * The number of bytes that are free on the file system and available to













     * applications.













     */













    public long getAvailableBytes() {













        return mStat.f_bavail * mStat.f_bsize;













    }















}