Examples with StructFlock libcore.io.StructFlock used on opensource projects

Example 1 with StructFlock

use of libcore.io.StructFlock in project XobotOS by xamarin.

the class FileChannelImpl method release.

/**
     * Non-API method to release a given lock on a file channel. Assumes that
     * the lock will mark itself invalid after successful unlocking.
     */
public void release(FileLock lock) throws IOException {
    checkOpen();
    StructFlock flock = new StructFlock();
    flock.l_type = (short) F_UNLCK;
    flock.l_whence = (short) SEEK_SET;
    flock.l_start = lock.position();
    flock.l_len = translateLockLength(lock.size());
    try {
        Libcore.os.fcntlFlock(fd, F_SETLKW64, flock);
    } catch (ErrnoException errnoException) {
        throw errnoException.rethrowAsIOException();
    }
    removeLock(lock);
}

Example 2 with StructFlock

use of libcore.io.StructFlock in project XobotOS by xamarin.

the class FileChannelImpl method basicLock.

private FileLock basicLock(long position, long size, boolean shared, boolean wait) throws IOException {
    int accessMode = (mode & O_ACCMODE);
    if (accessMode == O_RDONLY) {
        if (!shared) {
            throw new NonWritableChannelException();
        }
    } else if (accessMode == O_WRONLY) {
        if (shared) {
            throw new NonReadableChannelException();
        }
    }
    if (position < 0 || size < 0) {
        throw new IllegalArgumentException("position=" + position + " size=" + size);
    }
    FileLock pendingLock = new FileLockImpl(this, position, size, shared);
    addLock(pendingLock);
    StructFlock flock = new StructFlock();
    flock.l_type = (short) (shared ? F_RDLCK : F_WRLCK);
    flock.l_whence = (short) SEEK_SET;
    flock.l_start = position;
    flock.l_len = translateLockLength(size);
    boolean success = false;
    try {
        success = (Libcore.os.fcntlFlock(fd, wait ? F_SETLKW64 : F_SETLK64, flock) != -1);
    } catch (ErrnoException errnoException) {
        throw errnoException.rethrowAsIOException();
    } finally {
        if (!success) {
            removeLock(pendingLock);
        }
    }
    return success ? pendingLock : null;
}

Example 3 with StructFlock

use of libcore.io.StructFlock in project j2objc by google.

the class FileChannelImpl method basicLock.

private FileLock basicLock(long position, long size, boolean shared, boolean wait) throws IOException {
    int accessMode = (mode & O_ACCMODE);
    if (accessMode == O_RDONLY) {
        if (!shared) {
            throw new NonWritableChannelException();
        }
    } else if (accessMode == O_WRONLY) {
        if (shared) {
            throw new NonReadableChannelException();
        }
    }
    if (position < 0 || size < 0) {
        throw new IllegalArgumentException("position=" + position + " size=" + size);
    }
    FileLock pendingLock = new FileLockImpl(this, position, size, shared);
    addLock(pendingLock);
    StructFlock flock = new StructFlock();
    flock.l_type = (short) (shared ? F_RDLCK : F_WRLCK);
    flock.l_whence = (short) SEEK_SET;
    flock.l_start = position;
    flock.l_len = translateLockLength(size);
    boolean success = false;
    try {
        success = (Libcore.os.fcntlFlock(fd, wait ? F_SETLKW64 : F_SETLK64, flock) != -1);
    } catch (ErrnoException errnoException) {
        throw errnoException.rethrowAsIOException();
    } finally {
        if (!success) {
            removeLock(pendingLock);
        }
    }
    return success ? pendingLock : null;
}

Example 4 with StructFlock

use of libcore.io.StructFlock in project j2objc by google.

the class FileChannelImpl method release.

/**
     * Non-API method to release a given lock on a file channel. Assumes that
     * the lock will mark itself invalid after successful unlocking.
     */
public void release(FileLock lock) throws IOException {
    checkOpen();
    StructFlock flock = new StructFlock();
    flock.l_type = (short) F_UNLCK;
    flock.l_whence = (short) SEEK_SET;
    flock.l_start = lock.position();
    flock.l_len = translateLockLength(lock.size());
    try {
        Libcore.os.fcntlFlock(fd, F_SETLKW64, flock);
    } catch (ErrnoException errnoException) {
        throw errnoException.rethrowAsIOException();
    }
    removeLock(lock);
}

Example 5 with StructFlock

use of libcore.io.StructFlock in project robovm by robovm.

the class FileChannelImpl method basicLock.

private FileLock basicLock(long position, long size, boolean shared, boolean wait) throws IOException {
    int accessMode = (mode & O_ACCMODE);
    if (accessMode == O_RDONLY) {
        if (!shared) {
            throw new NonWritableChannelException();
        }
    } else if (accessMode == O_WRONLY) {
        if (shared) {
            throw new NonReadableChannelException();
        }
    }
    if (position < 0 || size < 0) {
        throw new IllegalArgumentException("position=" + position + " size=" + size);
    }
    FileLock pendingLock = new FileLockImpl(this, position, size, shared);
    addLock(pendingLock);
    StructFlock flock = new StructFlock();
    flock.l_type = (short) (shared ? F_RDLCK : F_WRLCK);
    flock.l_whence = (short) SEEK_SET;
    flock.l_start = position;
    flock.l_len = translateLockLength(size);
    boolean success = false;
    try {
        success = (Libcore.os.fcntlFlock(fd, wait ? F_SETLKW64 : F_SETLK64, flock) != -1);
    } catch (ErrnoException errnoException) {
        throw errnoException.rethrowAsIOException();
    } finally {
        if (!success) {
            removeLock(pendingLock);
        }
    }
    return success ? pendingLock : null;
}