Method: Magick::Image#marshal_dump

Defined in:
ext/RMagick/rmimage.cpp

#marshal_dump ⇒ Array<String>

Support Marshal.dump.

Returns:

  • (Array<String>) —

    The first element in the array is the file name. The second element is the string of blob.



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# File 'ext/RMagick/rmimage.cpp', line 9017

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);
    rb_ary_store(ary, 0, rb_str_new2(image->filename));

    exception = AcquireExceptionInfo();
    GVL_STRUCT_TYPE(ImageToBlob) args = { info, image, &length, exception };
    blob = (unsigned char *)CALL_FUNC_WITHOUT_GVL(GVL_FUNC(ImageToBlob), &args);

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

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

    return ary;
}