Examples with ErrnoException android.system.ErrnoException used on opensource projects

Example 91 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by crdroidandroid.

the class PackageInstallerSession method openWriteInternal.

private ParcelFileDescriptor openWriteInternal(String name, long offsetBytes, long lengthBytes) throws IOException {
    // Quick sanity check of state, and allocate a pipe for ourselves. We
    // then do heavy disk allocation outside the lock, but this open pipe
    // will block any attempted install transitions.
    final FileBridge bridge;
    synchronized (mLock) {
        assertPreparedAndNotSealed("openWrite");
        bridge = new FileBridge();
        mBridges.add(bridge);
    }
    try {
        // Use installer provided name for now; we always rename later
        if (!FileUtils.isValidExtFilename(name)) {
            throw new IllegalArgumentException("Invalid name: " + name);
        }
        final File target;
        final long identity = Binder.clearCallingIdentity();
        try {
            target = new File(resolveStageDir(), name);
        } finally {
            Binder.restoreCallingIdentity(identity);
        }
        // TODO: this should delegate to DCS so the system process avoids
        // holding open FDs into containers.
        final FileDescriptor targetFd = Libcore.os.open(target.getAbsolutePath(), O_CREAT | O_WRONLY, 0644);
        Os.chmod(target.getAbsolutePath(), 0644);
        // cache space to grow, if needed.
        if (lengthBytes > 0) {
            final StructStat stat = Libcore.os.fstat(targetFd);
            final long deltaBytes = lengthBytes - stat.st_size;
            // Only need to free up space when writing to internal stage
            if (stageDir != null && deltaBytes > 0) {
                mPm.freeStorage(params.volumeUuid, deltaBytes);
            }
            try {
                Libcore.os.posix_fallocate(targetFd, 0, lengthBytes);
            } catch (ErrnoException e) {
                if (e.errno == OsConstants.ENOTSUP) {
                    Libcore.os.ftruncate(targetFd, lengthBytes);
                } else {
                    throw e.rethrowAsIOException();
                }
            }
        }
        if (offsetBytes > 0) {
            Libcore.os.lseek(targetFd, offsetBytes, OsConstants.SEEK_SET);
        }
        bridge.setTargetFile(targetFd);
        bridge.start();
        return new ParcelFileDescriptor(bridge.getClientSocket());
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 92 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by crdroidandroid.

the class PackageInstallerSession method openReadInternal.

private ParcelFileDescriptor openReadInternal(String name) throws IOException {
    assertPreparedAndNotSealed("openRead");
    try {
        if (!FileUtils.isValidExtFilename(name)) {
            throw new IllegalArgumentException("Invalid name: " + name);
        }
        final File target = new File(resolveStageDir(), name);
        final FileDescriptor targetFd = Libcore.os.open(target.getAbsolutePath(), O_RDONLY, 0);
        return new ParcelFileDescriptor(targetFd);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 93 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by crdroidandroid.

the class PackageInstallerSession method createRemoveSplitMarker.

private void createRemoveSplitMarker(String splitName) throws IOException {
    try {
        final String markerName = splitName + REMOVE_SPLIT_MARKER_EXTENSION;
        if (!FileUtils.isValidExtFilename(markerName)) {
            throw new IllegalArgumentException("Invalid marker: " + markerName);
        }
        final File target = new File(resolveStageDir(), markerName);
        target.createNewFile();
        Os.chmod(target.getAbsolutePath(), 0);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 94 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by crdroidandroid.

the class PackageInstallerService method prepareStageDir.

static void prepareStageDir(File stageDir) throws IOException {
    if (stageDir.exists()) {
        throw new IOException("Session dir already exists: " + stageDir);
    }
    try {
        Os.mkdir(stageDir.getAbsolutePath(), 0755);
        Os.chmod(stageDir.getAbsolutePath(), 0755);
    } catch (ErrnoException e) {
        // This purposefully throws if directory already exists
        throw new IOException("Failed to prepare session dir: " + stageDir, e);
    }
    if (!SELinux.restorecon(stageDir)) {
        throw new IOException("Failed to restorecon session dir: " + stageDir);
    }
}

Example 95 with ErrnoException

use of android.system.ErrnoException in project android_frameworks_base by crdroidandroid.

the class ExifInterfaceTest method testExifInterfaceCommon.

private void testExifInterfaceCommon(File imageFile, ExpectedValue expectedValue) throws IOException {
    String verboseTag = imageFile.getName();
    // Creates via path.
    ExifInterface exifInterface = new ExifInterface(imageFile.getAbsolutePath());
    compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
    // Creates from an asset file.
    InputStream in = null;
    try {
        in = mContext.getAssets().open(imageFile.getName());
        exifInterface = new ExifInterface(in);
        compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
    } finally {
        IoUtils.closeQuietly(in);
    }
    // Creates via InputStream.
    in = null;
    try {
        in = new BufferedInputStream(new FileInputStream(imageFile.getAbsolutePath()));
        exifInterface = new ExifInterface(in);
        compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
    } finally {
        IoUtils.closeQuietly(in);
    }
    // Creates via FileDescriptor.
    FileDescriptor fd = null;
    try {
        fd = Os.open(imageFile.getAbsolutePath(), OsConstants.O_RDONLY, 0600);
        exifInterface = new ExifInterface(fd);
        compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    } finally {
        IoUtils.closeQuietly(fd);
    }
}