Examples with StatFs android.os.StatFs used on opensource projects

Example 96 with StatFs

use of android.os.StatFs in project android_frameworks_base by crdroidandroid.

the class DownloadManagerStressTest method testDownloadToCacheWithAlmostFullCache.

/**
     * Tests downloading a file to system cache when there isn't enough space in the system cache 
     * to hold the entire file. DownloadManager deletes enough files to make space for the
     * new download.
     */
@LargeTest
public void testDownloadToCacheWithAlmostFullCache() throws Exception {
    // 1MB
    int DOWNLOAD_FILE_SIZE = 1024 * 1024;
    StatFs fs = new StatFs(CACHE_DIR);
    int blockSize = fs.getBlockSize();
    int availableBlocks = fs.getAvailableBlocks();
    int availableBytes = blockSize * availableBlocks;
    Log.i(TAG, "INITIAL stage, available space in /cache: " + availableBytes);
    File outFile = File.createTempFile("DM_TEST", null, new File(CACHE_DIR));
    byte[] buffer = new byte[blockSize];
    try {
        // download size, and leave that much freespace left on the cache partition
        if (DOWNLOAD_FILE_SIZE <= availableBytes) {
            int writeSizeBytes = availableBytes - (DOWNLOAD_FILE_SIZE / 2);
            int writeSizeBlocks = writeSizeBytes / blockSize;
            int remainderSizeBlocks = availableBlocks - writeSizeBlocks;
            FileOutputStream fo = null;
            try {
                fo = new FileOutputStream(outFile);
                while (fs.getAvailableBlocks() >= remainderSizeBlocks) {
                    fo.write(buffer);
                    fs.restat(CACHE_DIR);
                }
            } catch (IOException e) {
                Log.e(LOG_TAG, "error filling file: ", e);
                throw e;
            } finally {
                if (fo != null) {
                    fo.close();
                }
            }
        }
        // /cache should now be almost full. 
        long spaceAvailable = fs.getAvailableBlocks() * blockSize;
        Log.i(TAG, "BEFORE download, available space in /cache: " + spaceAvailable);
        assertTrue(DOWNLOAD_FILE_SIZE > spaceAvailable);
        // try to download 1MB file into /cache - and it should succeed
        byte[] blobData = generateData(DOWNLOAD_FILE_SIZE, DataType.TEXT);
        long dlRequest = doBasicDownload(blobData, DOWNLOAD_TO_SYSTEM_CACHE);
        verifyAndCleanupSingleFileDownload(dlRequest, blobData);
    } finally {
        if (outFile != null) {
            outFile.delete();
        }
    }
}

Example 97 with StatFs

use of android.os.StatFs in project android_frameworks_base by crdroidandroid.

the class DiskStatsService method reportFreeSpace.

private void reportFreeSpace(File path, String name, PrintWriter pw) {
    try {
        StatFs statfs = new StatFs(path.getPath());
        long bsize = statfs.getBlockSize();
        long avail = statfs.getAvailableBlocks();
        long total = statfs.getBlockCount();
        if (bsize <= 0 || total <= 0) {
            throw new IllegalArgumentException("Invalid stat: bsize=" + bsize + " avail=" + avail + " total=" + total);
        }
        pw.print(name);
        pw.print("-Free: ");
        pw.print(avail * bsize / 1024);
        pw.print("K / ");
        pw.print(total * bsize / 1024);
        pw.print("K total = ");
        pw.print(avail * 100 / total);
        pw.println("% free");
    } catch (IllegalArgumentException e) {
        pw.print(name);
        pw.print("-Error: ");
        pw.println(e.toString());
        return;
    }
}

Example 98 with StatFs

use of android.os.StatFs in project android_frameworks_base by crdroidandroid.

the class LowStorageTest method onCreate.

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.main);
    // Update the current data info
    File path = Environment.getDataDirectory();
    StatFs stat = new StatFs(path.getPath());
    int totalBlocks = stat.getBlockCount();
    mBlockSize = (int) (stat.getBlockSize());
    TextView startSizeTextView = (TextView) findViewById(R.id.totalsize);
    startSizeTextView.setText(Long.toString((totalBlocks * mBlockSize) / BYTE_SIZE));
    Button button = (Button) findViewById(R.id.button_run);
    button.setOnClickListener(mStartListener);
}

Example 99 with StatFs

use of android.os.StatFs in project android_frameworks_base by crdroidandroid.

the class DropBoxTest method testAgeLimits.

public void testAgeLimits() throws Exception {
    File dir = getEmptyDir("testAgeLimits");
    int blockSize = new StatFs(dir.getPath()).getBlockSize();
    // Limit storage to 10 blocks with an expiration of 1 second
    int kb = blockSize * 10 / 1024;
    ContentResolver cr = getContext().getContentResolver();
    Settings.Global.putString(cr, Settings.Global.DROPBOX_AGE_SECONDS, "1");
    Settings.Global.putString(cr, Settings.Global.DROPBOX_QUOTA_KB, Integer.toString(kb));
    // Write one normal entry and another so big that it is instantly tombstoned
    long before = System.currentTimeMillis();
    DropBoxManagerService service = new DropBoxManagerService(getContext(), dir);
    DropBoxManager dropbox = new DropBoxManager(getContext(), service.getServiceStub());
    dropbox.addText("DropBoxTest", "TEST");
    addRandomEntry(dropbox, "DropBoxTest", blockSize * 20);
    // Verify that things are as expected
    DropBoxManager.Entry e0 = dropbox.getNextEntry(null, before);
    DropBoxManager.Entry e1 = dropbox.getNextEntry(null, e0.getTimeMillis());
    assertTrue(null == dropbox.getNextEntry(null, e1.getTimeMillis()));
    assertEquals("TEST", e0.getText(80));
    assertEquals(null, e1.getText(80));
    assertEquals(-1, getEntrySize(e1));
    e0.close();
    e1.close();
    // Wait a second and write another entry -- old ones should be expunged
    Thread.sleep(2000);
    dropbox.addText("DropBoxTest", "TEST1");
    e0 = dropbox.getNextEntry(null, before);
    assertTrue(null == dropbox.getNextEntry(null, e0.getTimeMillis()));
    assertEquals("TEST1", e0.getText(80));
    e0.close();
}

Example 100 with StatFs

use of android.os.StatFs in project android_frameworks_base by crdroidandroid.

the class DropBoxTest method testSizeLimits.

public void testSizeLimits() throws Exception {
    File dir = getEmptyDir("testSizeLimits");
    int blockSize = new StatFs(dir.getPath()).getBlockSize();
    // Limit storage to 10 blocks
    int kb = blockSize * 10 / 1024;
    ContentResolver cr = getContext().getContentResolver();
    Settings.Global.putString(cr, Settings.Global.DROPBOX_QUOTA_KB, Integer.toString(kb));
    // Three tags using a total of 12 blocks:
    // DropBoxTest0 [ ][ ]
    // DropBoxTest1 [x][ ][    ][ ][xxx(20 blocks)xxx]
    // DropBoxTest2 [xxxxxxxxxx][ ][ ]
    //
    // The blocks marked "x" will be removed due to storage restrictions.
    // Use random fill (so it doesn't compress), subtract a little for gzip overhead
    final int overhead = 64;
    long before = System.currentTimeMillis();
    DropBoxManagerService service = new DropBoxManagerService(getContext(), dir);
    DropBoxManager dropbox = new DropBoxManager(getContext(), service.getServiceStub());
    addRandomEntry(dropbox, "DropBoxTest0", blockSize - overhead);
    addRandomEntry(dropbox, "DropBoxTest0", blockSize - overhead);
    addRandomEntry(dropbox, "DropBoxTest1", blockSize - overhead);
    addRandomEntry(dropbox, "DropBoxTest1", blockSize - overhead);
    addRandomEntry(dropbox, "DropBoxTest1", blockSize * 2 - overhead);
    addRandomEntry(dropbox, "DropBoxTest1", blockSize - overhead);
    addRandomEntry(dropbox, "DropBoxTest1", blockSize * 20 - overhead);
    addRandomEntry(dropbox, "DropBoxTest2", blockSize * 4 - overhead);
    addRandomEntry(dropbox, "DropBoxTest2", blockSize - overhead);
    addRandomEntry(dropbox, "DropBoxTest2", blockSize - overhead);
    DropBoxManager.Entry e0 = dropbox.getNextEntry(null, before);
    DropBoxManager.Entry e1 = dropbox.getNextEntry(null, e0.getTimeMillis());
    DropBoxManager.Entry e2 = dropbox.getNextEntry(null, e1.getTimeMillis());
    DropBoxManager.Entry e3 = dropbox.getNextEntry(null, e2.getTimeMillis());
    DropBoxManager.Entry e4 = dropbox.getNextEntry(null, e3.getTimeMillis());
    DropBoxManager.Entry e5 = dropbox.getNextEntry(null, e4.getTimeMillis());
    DropBoxManager.Entry e6 = dropbox.getNextEntry(null, e5.getTimeMillis());
    DropBoxManager.Entry e7 = dropbox.getNextEntry(null, e6.getTimeMillis());
    DropBoxManager.Entry e8 = dropbox.getNextEntry(null, e7.getTimeMillis());
    DropBoxManager.Entry e9 = dropbox.getNextEntry(null, e8.getTimeMillis());
    assertTrue(null == dropbox.getNextEntry(null, e9.getTimeMillis()));
    assertEquals("DropBoxTest0", e0.getTag());
    assertEquals("DropBoxTest0", e1.getTag());
    assertEquals(blockSize - overhead, getEntrySize(e0));
    assertEquals(blockSize - overhead, getEntrySize(e1));
    assertEquals("DropBoxTest1", e2.getTag());
    assertEquals("DropBoxTest1", e3.getTag());
    assertEquals("DropBoxTest1", e4.getTag());
    assertEquals("DropBoxTest1", e5.getTag());
    assertEquals("DropBoxTest1", e6.getTag());
    // Tombstone
    assertEquals(-1, getEntrySize(e2));
    assertEquals(blockSize - overhead, getEntrySize(e3));
    assertEquals(blockSize * 2 - overhead, getEntrySize(e4));
    assertEquals(blockSize - overhead, getEntrySize(e5));
    assertEquals(-1, getEntrySize(e6));
    assertEquals("DropBoxTest2", e7.getTag());
    assertEquals("DropBoxTest2", e8.getTag());
    assertEquals("DropBoxTest2", e9.getTag());
    // Tombstone
    assertEquals(-1, getEntrySize(e7));
    assertEquals(blockSize - overhead, getEntrySize(e8));
    assertEquals(blockSize - overhead, getEntrySize(e9));
    e0.close();
    e1.close();
    e2.close();
    e3.close();
    e4.close();
    e5.close();
    e6.close();
    e7.close();
    e8.close();
    e9.close();
    // Specifying a tag name skips tombstone records.
    DropBoxManager.Entry t0 = dropbox.getNextEntry("DropBoxTest1", before);
    DropBoxManager.Entry t1 = dropbox.getNextEntry("DropBoxTest1", t0.getTimeMillis());
    DropBoxManager.Entry t2 = dropbox.getNextEntry("DropBoxTest1", t1.getTimeMillis());
    assertTrue(null == dropbox.getNextEntry("DropBoxTest1", t2.getTimeMillis()));
    assertEquals("DropBoxTest1", t0.getTag());
    assertEquals("DropBoxTest1", t1.getTag());
    assertEquals("DropBoxTest1", t2.getTag());
    assertEquals(blockSize - overhead, getEntrySize(t0));
    assertEquals(blockSize * 2 - overhead, getEntrySize(t1));
    assertEquals(blockSize - overhead, getEntrySize(t2));
    t0.close();
    t1.close();
    t2.close();
}