Examples of org.jruby.util.io.OpenFile.lock()

org.jruby.util.io.OpenFile.lock()

        int r, n;


        if (!block.isGiven()) return enumeratorize(context.runtime, this, methodName);
        fptr = getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            fptr.checkCharReadable(context);


            fptr.READ_CHECK(context);
            if (fptr.needsReadConversion()) {

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        adviceArgCheck(context, advice);


        RubyIO io = GetWriteIO();
        fptr = io.getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            off = offset.isNil() ? 0 : offset.convertToInteger().getIntValue();
            l = len.isNil() ? 0 : len.convertToInteger().getIntValue();


            // TODO: implement advise

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        if (!io2.openFile.isWritable()) throw runtime.newIOError("to IO is not writable");


        // attempt to preserve position of original
        OpenFile fptr = io1.getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            long pos = fptr.tell(context);
            long size = 0;


            try {

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        Ruby runtime = context.runtime;
        OpenFile fptr;


        RubyIO io = GetWriteIO();
        fptr = io.getOpenFileChecked();
        fptr.lock();
        try {
            return (fptr.getMode() & OpenFile.SYNC) != 0 ? runtime.getTrue() : runtime.getFalse();
        } finally {
            fptr.unlock();
        }

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    // rb_io_pos
    @JRubyMethod(name = {"pos", "tell"})
    public RubyFixnum pos(ThreadContext context) {
        OpenFile fptr = getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            long pos = fptr.tell(context);
            if (pos < 0 && fptr.errno() != null) throw context.runtime.newErrnoFromErrno(fptr.errno(), fptr.getPath());
            pos -= fptr.rbuf.len;
            return context.runtime.newFixnum(pos);

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        long pos;


        pos = offset.convertToInteger().getLongValue();
        fptr = getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            pos = fptr.seek(context, pos, PosixShim.SEEK_SET);
            if (pos < 0 && fptr.errno() != null) throw context.runtime.newErrnoFromErrno(fptr.errno(), fptr.getPath());
        } finally {
            if (locked) fptr.unlock();

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        long pos;


        pos = RubyNumeric.num2long(offset);
        fptr = getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            pos = fptr.seek(context, pos, whence);
            if (pos < 0 && fptr.errno() != null) throw getRuntime().newErrnoFromErrno(fptr.errno(), fptr.getPath());
        } finally {
            if (locked) fptr.unlock();

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                offset = args[0];
        }
        pos = offset.convertToInteger().getLongValue();
        fptr = getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            if ((fptr.isReadable()) &&
                    (fptr.READ_DATA_BUFFERED() || fptr.READ_CHAR_PENDING())) {
                throw runtime.newIOError("sysseek for buffered IO");
            }

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    public RubyFixnum rewind(ThreadContext context) {
        Ruby runtime = context.runtime;
        OpenFile fptr;


        fptr = getOpenFileChecked();
        boolean locked = fptr.lock();
        try {
            if (fptr.seek(context, 0L, 0) < 0 && fptr.errno() != null)
                throw context.runtime.newErrnoFromErrno(fptr.errno(), fptr.getPath());
            RubyArgsFile.ArgsFileData data = RubyArgsFile.ArgsFileData.getDataFrom(runtime.getArgsFile());
            if (this == data.currentFile) {

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        boolean noLimit = false;
        Encoding enc;
        
        OpenFile fptr = getOpenFileChecked();


        boolean locked = fptr.lock();
        try {
            fptr.checkCharReadable(context);


            if (rs.isNil() && _limit < 0) {
                str = fptr.readAll(context, 0, context.nil);

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