Method: Magick::Image#marshal_dump

Defined in:
ext/RMagick/rmimage.c

#marshal_dump ⇒ img.filename, img.to_blob

Support Marshal.dump >= 1.8.

Ruby usage:

- @verbatim Image#marshal_dump @endverbatim

Parameters:

  • self —

    this object

Returns:

[View source]

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# File 'ext/RMagick/rmimage.c', line 8171

VALUE
Image_marshal_dump(VALUE self)
{
    Image *image;
    Info *info;
    unsigned char *blob;
    size_t length;
    VALUE ary;
    ExceptionInfo exception;

    image = rm_check_destroyed(self);

    info = CloneImageInfo(NULL);
    if (!info)
    {
        rb_raise(rb_eNoMemError, "not enough memory to initialize Info object");
    }

    ary = rb_ary_new2(2);
    if (image->filename)
    {
        rb_ary_store(ary, 0, rb_str_new2(image->filename));
    }
    else
    {
        rb_ary_store(ary, 0, Qnil);
    }

    GetExceptionInfo(&exception);
    blob = ImageToBlob(info, image, &length, &exception);

    // Destroy info before raising an exception
    DestroyImageInfo(info);
    CHECK_EXCEPTION()
    (void) DestroyExceptionInfo(&exception);

    rb_ary_store(ary, 1, rb_str_new((char *)blob, (long)length));
    magick_free((void*)blob);

    return ary;
}