Drizzled Public API Documentation

memc_get.cc
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00001 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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00004  * Copyright (C) 2009, Patrick "CaptTofu" Galbraith, Padraig O'Sullivan
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00007  * Redistribution and use in source and binary forms, with or without
00008  * modification, are permitted provided that the following conditions are met:
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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