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 #include <config.h> 00033 #include <drizzled/function/str/strfunc.h> 00034 00035 #include "memcached_functions.h" 00036 #include "memc_cas.h" 00037 00038 #include <libmemcached/memcached.h> 00039 00040 #include <string> 00041 00042 using namespace std; 00043 using namespace drizzled; 00044 00045 int64_t MemcachedCas::val_int() 00046 { 00047 memcached_return rc; 00048 time_t expiration= 0; 00049 String *key; 00050 String *res; 00051 String *cas; 00052 null_value= false; 00053 00054 if ((arg_count != 3 && arg_count != 4) || 00055 ! (key= args[0]->val_str(&value)) || 00056 ! (res= args[1]->val_str(&value)) || 00057 ! (cas= args[2]->val_str(&value)) || 00058 ! memc) 00059 { 00060 return 0; 00061 } 00062 00063 if (arg_count == 4) 00064 { 00065 String *tmp_exp= args[3]->val_str(&value);; 00066 00067 expiration= (time_t)atoi(tmp_exp->c_ptr()); 00068 } 00069 00070 rc= memcached_cas(memc, key->c_ptr(), key->length(), 00071 res->c_ptr(), res->length(), 00072 expiration, (uint16_t) 0, 00073 (uint64_t) strtol(cas->c_ptr(), (char **)NULL, 10)); 00074 00075 if (rc != MEMCACHED_SUCCESS) 00076 { 00077 return 0; 00078 } 00079 00080 return 1; 00081 }