Drizzled Public API Documentation

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