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 */ 00036 #include <config.h> 00037 #include <drizzled/function/str/strfunc.h> 00038 00039 #include "memcached_functions.h" 00040 #include "memc_get.h" 00041 00042 #include <libmemcached/memcached.h> 00043 00044 #include <string> 00045 00046 using namespace std; 00047 using namespace drizzled; 00048 00054 String *MemcachedGet::val_str(String *str) 00055 { 00056 memcached_return rc; 00057 String *key; 00058 uint32_t flags; 00059 size_t val_len; 00060 00061 if (arg_count != 1 || 00062 ! (key= args[0]->val_str(str)) || 00063 ! memc) 00064 { 00065 return &failure_buff; 00066 } 00067 00068 char *value= memcached_get(memc, key->c_ptr(), key->length(), &val_len, &flags, &rc); 00069 if (rc != MEMCACHED_SUCCESS) 00070 { 00071 null_value= true; 00072 return NULL; 00073 } 00074 00075 buffer.realloc(val_len); 00076 buffer.length(val_len); 00077 memcpy(buffer.ptr(), value, val_len); 00078 free(value); 00079 00080 return &buffer; 00081 } 00082