Class: CBOR::Buffer

Inherits:
Object
  • Object
show all
Defined in:
ext/cbor/buffer_class.c

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 124

static VALUE Buffer_initialize(int argc, VALUE* argv, VALUE self)
{
    VALUE io = Qnil;
    VALUE options = Qnil;

    if(argc == 0 || (argc == 1 && argv[0] == Qnil)) {
        /* Qnil */

    } else if(argc == 1) {
        VALUE v = argv[0];
        if(rb_type(v) == T_HASH) {
            options = v;
        } else {
            io = v;
        }

    } else if(argc == 2) {
        io = argv[0];
        options = argv[1];
        if(rb_type(options) != T_HASH) {
            rb_raise(rb_eArgError, "expected Hash but found %s.", rb_obj_classname(io));
        }

    } else {
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..1)", argc);
    }

    BUFFER(self, b);

    MessagePack_Buffer_initialize(b, io, options);

    return self;
}

Instance Method Details

#<<(string_or_buffer) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 194

static VALUE Buffer_append(VALUE self, VALUE string_or_buffer)
{
    BUFFER(self, b);

    VALUE string = string_or_buffer;  // TODO optimize if string_or_buffer is a Buffer
    StringValue(string);

    msgpack_buffer_append_string(b, string);

    return self;
}

#clear ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 158

static VALUE Buffer_clear(VALUE self)
{
    BUFFER(self, b);
    msgpack_buffer_clear(b);
    return Qnil;
}

#close ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 467

static VALUE Buffer_close(VALUE self)
{
    BUFFER(self, b);
    if(b->io != Qnil) {
        return rb_funcall(b->io, s_close, 0);
    }
    return Qnil;
}

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'ext/cbor/buffer_class.c', line 172

static VALUE Buffer_empty_p(VALUE self)
{
    BUFFER(self, b);
    if(msgpack_buffer_top_readable_size(b) == 0) {
        return Qtrue;
    } else {
        return Qfalse;
    }
}

#flush ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 454

static VALUE Buffer_flush(VALUE self)
{
    BUFFER(self, b);
    msgpack_buffer_flush(b);
    return self;
}

#io ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 461

static VALUE Buffer_io(VALUE self)
{
    BUFFER(self, b);
    return b->io;
}

#read(*args) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 381

static VALUE Buffer_read(int argc, VALUE* argv, VALUE self)
{
    VALUE out = Qnil;
    unsigned long n = -1;
    bool all = false;

    switch(argc) {
    case 2:
        out = argv[1];
        /* pass through */
    case 1:
        n = FIX2ULONG(argv[0]);
        break;
    case 0:
        all = true;
        break;
    default:
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..2)", argc);
    }

    BUFFER(self, b);

    if(out != Qnil) {
        CHECK_STRING_TYPE(out);
    }

    if(all) {
        return read_all(b, out);
    }

    if(n == 0) {
        /* do nothing */
        MAKE_EMPTY_STRING(out);
        return out;
    }

#ifndef DISABLE_BUFFER_READ_TO_S_OPTIMIZE
    if(!msgpack_buffer_has_io(b) && out == Qnil &&
            msgpack_buffer_all_readable_size(b) <= n) {
        /* same as to_s && clear; optimize */
        VALUE str = msgpack_buffer_all_as_string(b);
        msgpack_buffer_clear(b);

        if(RSTRING_LEN(str) == 0) {
            return Qnil;
        } else {
            return str;
        }
    }
#endif

    MAKE_EMPTY_STRING(out);
    read_until_eof(b, out, n);

    if(RSTRING_LEN(out) == 0) {
        return Qnil;
    } else {
        return out;
    }
}

#read_all(*args) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 335

static VALUE Buffer_read_all(int argc, VALUE* argv, VALUE self)
{
    VALUE out = Qnil;
    unsigned long n = 0;
    bool all = false;

    switch(argc) {
    case 2:
        out = argv[1];
        /* pass through */
    case 1:
        n = FIX2ULONG(argv[0]);
        break;
    case 0:
        all = true;
        break;
    default:
        rb_raise(rb_eArgError, "wrong number of arguments (%d for 0..2)", argc);
    }

    BUFFER(self, b);

    if(out != Qnil) {
        CHECK_STRING_TYPE(out);
    }

    if(all) {
        return read_all(b, out);
    }

    if(n == 0) {
        /* do nothing */
        MAKE_EMPTY_STRING(out);
        return out;
    }

    if(!msgpack_buffer_ensure_readable(b, n)) {
        rb_raise(rb_eEOFError, "end of buffer reached");
    }

    MAKE_EMPTY_STRING(out);
    msgpack_buffer_read_to_string_nonblock(b, out, n);

    return out;
}

#size ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 165

static VALUE Buffer_size(VALUE self)
{
    BUFFER(self, b);
    size_t size = msgpack_buffer_all_readable_size(b);
    return SIZET2NUM(size);
}

#skip(sn) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 300

static VALUE Buffer_skip(VALUE self, VALUE sn)
{
    BUFFER(self, b);

    unsigned long n = FIX2ULONG(sn);

    /* do nothing */
    if(n == 0) {
        return ULONG2NUM(0);
    }

    size_t sz = read_until_eof(b, Qnil, n);
    return ULONG2NUM(sz);
}

#skip_all(sn) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 315

static VALUE Buffer_skip_all(VALUE self, VALUE sn)
{
    BUFFER(self, b);

    unsigned long n = FIX2ULONG(sn);

    /* do nothing */
    if(n == 0) {
        return self;
    }

    if(!msgpack_buffer_ensure_readable(b, n)) {
        rb_raise(rb_eEOFError, "end of buffer reached");
    }

    msgpack_buffer_skip_nonblock(b, n);

    return self;
}

#to_a ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 448

static VALUE Buffer_to_a(VALUE self)
{
    BUFFER(self, b);
    return msgpack_buffer_all_as_string_array(b);
}

#to_str ⇒ Object Also known as: to_s 



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# File 'ext/cbor/buffer_class.c', line 442

static VALUE Buffer_to_str(VALUE self)
{
    BUFFER(self, b);
    return msgpack_buffer_all_as_string(b);
}

#write(string_or_buffer) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 182

static VALUE Buffer_write(VALUE self, VALUE string_or_buffer)
{
    BUFFER(self, b);

    VALUE string = string_or_buffer;  // TODO optimize if string_or_buffer is a Buffer
    StringValue(string);

    size_t length = msgpack_buffer_append_string(b, string);

    return SIZET2NUM(length);
}

#write_to(io) ⇒ Object 



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# File 'ext/cbor/buffer_class.c', line 476

static VALUE Buffer_write_to(VALUE self, VALUE io)
{
    BUFFER(self, b);
    size_t sz = msgpack_buffer_flush_to_io(b, io, s_write, true);
    return ULONG2NUM(sz);
}