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

Example 26 with StatFs

use of android.os.StatFs in project platform_frameworks_base by android.

the class PackageManagerTests method checkInt.

private boolean checkInt(long pkgLen) {
    StatFs intStats = new StatFs(Environment.getDataDirectory().getPath());
    long intSize = (long) intStats.getBlockCount() * (long) intStats.getBlockSize();
    long iSize = (long) intStats.getAvailableBlocks() * (long) intStats.getBlockSize();
    // TODO check for thresholds here?
    return pkgLen <= iSize;
}

Example 27 with StatFs

use of android.os.StatFs in project platform_frameworks_base by android.

the class AppCacheTest method testFreeApplicationCacheSomeFiles.

public void testFreeApplicationCacheSomeFiles() throws Exception {
    StatFs st = new StatFs("/data");
    long blks1 = getFreeStorageBlks(st);
    File cacheDir = mContext.getCacheDir();
    assertNotNull(cacheDir);
    createTestFiles1(cacheDir, "testtmpdir", 5);
    long blks2 = getFreeStorageBlks(st);
    Log.i(TAG, "blk1=" + blks1 + ", blks2=" + blks2);
    long diff = (blks1 - blks2 - 2);
    if (!invokePMFreeApplicationCache(diff * st.getBlockSize())) {
        fail("Could not successfully invoke PackageManager free app cache API");
    }
    long blks3 = getFreeStorageBlks(st);
    //blks3 should be greater than blks2 and less than blks1
    if (!((blks3 <= blks1) && (blks3 >= blks2))) {
        failStr("Expected " + (blks1 - blks2) + " number of blocks to be freed but freed only " + (blks1 - blks3));
    }
}

Example 28 with StatFs

use of android.os.StatFs in project platform_frameworks_base by android.

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 29 with StatFs

use of android.os.StatFs in project platform_frameworks_base by android.

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 30 with StatFs

use of android.os.StatFs in project platform_frameworks_base by android.

the class LowStorageTest method updateInfo.

public void updateInfo(Context context) {
    fillupdisk(this);
    synchronized (fillUpDone) {
        try {
            fillUpDone.wait(WAIT_FOR_FINISH);
        } catch (Exception e) {
            Log.v(TAG, "wait was interrupted.");
        }
    }
    try {
        // The stat didn't relect the correct data right away
        // put some extra time to make sure if get the right size.
        Thread.sleep(WAIT_FOR_SYSTEM_UPDATE);
        File path = Environment.getDataDirectory();
        StatFs stat = new StatFs(path.getPath());
        long availableBlocks = stat.getAvailableBlocks();
        TextView freeSizeTextView = (TextView) findViewById(R.id.freesize);
        freeSizeTextView.setText(Long.toString((availableBlocks * mBlockSize) / BYTE_SIZE));
        TextView statusTextView = (TextView) findViewById(R.id.status);
        statusTextView.setText("Finished. You can start the test now.");
    } catch (Exception e) {
        Log.v(TAG, e.toString());
    }
}