~drizzle-trunk/drizzle/development

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 * Copyright (C) 2009, Patrick "CaptTofu" Galbraith, Padraig O'Sullivan
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *   * Neither the name of Patrick Galbraith nor the names of its contributors
 *     may be used to endorse or promote products derived from this software
 *     without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <config.h>
#include <drizzled/item/func.h>
#include <drizzled/function/str/strfunc.h>

#include "memcached_functions.h"
#include "memc_behavior_get.h"

#include <libmemcached/memcached.h>

#include <string>
#include <algorithm>

using namespace std;
using namespace drizzled;

void MemcachedBehaviorGet::setFailureString(const char *error)
{
  size_t size= strlen(error);
  failure_buff.realloc(size);
  failure_buff.length(size);
  memcpy(failure_buff.ptr(), error, size);
}

String *MemcachedBehaviorGet::val_str(String *str)
{
  String *tmp_behavior;

  if (arg_count != 1 ||
      ! (tmp_behavior= args[0]->val_str(str)) ||
      ! memc)
  {
    setFailureString("USAGE: memc_behavior_get('<behavior type>')");
    return &failure_buff;
  }

  /*
   * We don't want the user to have to type in all input in upper
   * case so we transform the input strings to upper case here.
   */

  memcached_behavior* it = find_ptr(behavior_map, boost::to_upper_copy(string(tmp_behavior->c_ptr())));
  if (not it) 
  {
    setFailureString("UNKNOWN BEHAVIOR TYPE!");
    return &failure_buff;
  }
	
  memcached_behavior mbehavior= *it;

  uint64_t isetting= memcached_behavior_get(memc, mbehavior);

  switch (mbehavior)
  {
  case MEMCACHED_BEHAVIOR_SUPPORT_CAS:
  case MEMCACHED_BEHAVIOR_NO_BLOCK:
  case MEMCACHED_BEHAVIOR_BUFFER_REQUESTS:
  case MEMCACHED_BEHAVIOR_USER_DATA:
  case MEMCACHED_BEHAVIOR_SORT_HOSTS:
  case MEMCACHED_BEHAVIOR_VERIFY_KEY:
  case MEMCACHED_BEHAVIOR_TCP_NODELAY:
  case MEMCACHED_BEHAVIOR_KETAMA:
  case MEMCACHED_BEHAVIOR_CACHE_LOOKUPS:
    if (isetting == 1)
      return_buff.append("1");
    else if (isetting == 0)
      return_buff.append("0");
    else
    {
      setFailureString("INVALID VALUE FOR BEHAVIOR - MUST be 1 OR 0!");
      return &failure_buff;
    }
    break;
  case MEMCACHED_BEHAVIOR_DISTRIBUTION:
    {
      string setting(dist_settings_reverse_map[isetting]);
      return_buff.append(setting.c_str());
    }
    break;
  case MEMCACHED_BEHAVIOR_HASH:
    {
      string setting(hash_settings_reverse_map[isetting]);
      return_buff.append(setting.c_str());
    }
    break;
  case MEMCACHED_BEHAVIOR_KETAMA_HASH:
    {
      string setting(ketama_hash_settings_reverse_map[isetting]);
      return_buff.append(setting.c_str());
    }
    break;
  case MEMCACHED_BEHAVIOR_SOCKET_SEND_SIZE:
  case MEMCACHED_BEHAVIOR_SOCKET_RECV_SIZE:
  case MEMCACHED_BEHAVIOR_POLL_TIMEOUT:
  case MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT:
  case MEMCACHED_BEHAVIOR_RETRY_TIMEOUT:
  case MEMCACHED_BEHAVIOR_IO_MSG_WATERMARK:
  case MEMCACHED_BEHAVIOR_IO_BYTES_WATERMARK:
    {
      size_t setting_len= 0;
      char tmp_buff[16];

      snprintf(tmp_buff, 16, "%"PRIu64, isetting);
      setting_len= strlen(tmp_buff);
      return_buff.realloc(setting_len);
      return_buff.length(setting_len);
      memcpy(return_buff.ptr(),tmp_buff, setting_len);
    }
    break;
  default:
    break;
  }

  return &return_buff;
}