00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*- 00002 * vim:expandtab:shiftwidth=2:tabstop=2:smarttab: 00003 * 00004 * Copyright (C) 2009, Patrick "CaptTofu" Galbraith, Padraig O'Sullivan 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions are met: 00009 * 00010 * * Redistributions of source code must retain the above copyright notice, 00011 * this list of conditions and the following disclaimer. 00012 * * Redistributions in binary form must reproduce the above copyright notice, 00013 * this list of conditions and the following disclaimer in the documentation 00014 * and/or other materials provided with the distribution. 00015 * * Neither the name of Patrick Galbraith nor the names of its contributors 00016 * may be used to endorse or promote products derived from this software 00017 * without specific prior written permission. 00018 * 00019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00021 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 00023 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00024 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00025 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00026 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00027 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 00029 * THE POSSIBILITY OF SUCH DAMAGE. 00030 */ 00031 00032 #pragma once 00033 00034 #include <drizzled/function/str/strfunc.h> 00035 #include <drizzled/item/func.h> 00036 #include <string> 00037 00038 /* implements memc_cas */ 00039 class MemcachedCas : public drizzled::Item_int_func 00040 { 00041 drizzled::String value; 00042 drizzled::String failure_buff; 00043 public: 00044 MemcachedCas() 00045 : 00046 Item_int_func(), 00047 failure_buff("error ... ", &drizzled::my_charset_bin) 00048 {} 00049 00050 const char *func_name() const 00051 { 00052 return "memc_cas"; 00053 } 00054 00055 int64_t val_int(); 00056 00057 void fix_length_and_dec() 00058 { 00059 max_length= 32; 00060 } 00061 bool check_argument_count(int n) 00062 { 00063 return ((n == 3 || n == 4)); 00064 } 00065 }; 00066