1 | <?php |
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2 | |
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3 | // security - hide paths |
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4 | if (!defined('ADODB_DIR')) die(); |
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5 | |
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6 | global $ADODB_INCLUDED_MEMCACHE; |
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7 | $ADODB_INCLUDED_MEMCACHE = 1; |
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8 | |
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9 | /* |
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10 | |
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11 | V4.90 8 June 2006 (c) 2000-2007 John Lim (jlim#natsoft.com.my). All rights reserved. |
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12 | Released under both BSD license and Lesser GPL library license. |
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13 | Whenever there is any discrepancy between the two licenses, |
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14 | the BSD license will take precedence. See License.txt. |
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15 | Set tabs to 4 for best viewing. |
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16 | |
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17 | Latest version is available at http://adodb.sourceforge.net |
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18 | |
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19 | */ |
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20 | |
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21 | function &getmemcache($key,&$err, $timeout=0, $host, $port) |
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22 | { |
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23 | $false = false; |
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24 | $err = false; |
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25 | |
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26 | if (!function_exists('memcache_pconnect')) { |
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27 | $err = 'Memcache module PECL extension not found!'; |
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28 | return $false; |
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29 | } |
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30 | |
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31 | $memcache = new Memcache; |
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32 | if (!@$memcache->pconnect($host, $port)) { |
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33 | $err = 'Can\'t connect to memcache server on: '.$host.':'.$port; |
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34 | return $false; |
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35 | } |
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36 | |
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37 | $rs = $memcache->get($key); |
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38 | if (!$rs) { |
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39 | $err = 'Item with such key doesn\'t exists on the memcached server.'; |
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40 | return $false; |
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41 | } |
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42 | |
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43 | $tdiff = intval($rs->timeCreated+$timeout - time()); |
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44 | if ($tdiff <= 2) { |
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45 | switch($tdiff) { |
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46 | case 2: |
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47 | if ((rand() & 15) == 0) { |
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48 | $err = "Timeout 2"; |
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49 | return $false; |
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50 | } |
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51 | break; |
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52 | case 1: |
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53 | if ((rand() & 3) == 0) { |
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54 | $err = "Timeout 1"; |
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55 | return $false; |
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56 | } |
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57 | break; |
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58 | default: |
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59 | $err = "Timeout 0"; |
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60 | return $false; |
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61 | } |
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62 | } |
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63 | return $rs; |
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64 | } |
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65 | |
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66 | function putmemcache($key, $rs, $host, $port, $compress, $debug=false) |
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67 | { |
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68 | $false = false; |
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69 | $true = true; |
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70 | |
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71 | if (!function_exists('memcache_pconnect')) { |
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72 | if ($debug) ADOConnection::outp(" Memcache module PECL extension not found!<br>\n"); |
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73 | return $false; |
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74 | } |
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75 | |
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76 | $memcache = new Memcache; |
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77 | if (!@$memcache->pconnect($host, $port)) { |
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78 | if ($debug) ADOConnection::outp(" Can't connect to memcache server on: $host:$port<br>\n"); |
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79 | return $false; |
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80 | } |
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81 | |
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82 | $rs->timeCreated = time(); |
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83 | if (!$memcache->set($key, $rs, $compress, 0)) { |
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84 | if ($debug) ADOConnection::outp(" Failed to save data at the memcached server!<br>\n"); |
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85 | return $false; |
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86 | } |
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87 | return $true; |
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88 | } |
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89 | |
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90 | function flushmemcache($key=false, $host, $port, $debug=false) |
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91 | { |
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92 | if (!function_exists('memcache_pconnect')) { |
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93 | if ($debug) ADOConnection::outp(" Memcache module PECL extension not found!<br>\n"); |
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94 | return; |
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95 | } |
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96 | |
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97 | $memcache = new Memcache; |
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98 | if (!@$memcache->pconnect($host, $port)) { |
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99 | if ($debug) ADOConnection::outp(" Can't connect to memcache server on: $host:$port<br>\n"); |
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100 | return; |
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101 | } |
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102 | |
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103 | if ($key) { |
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104 | if (!$memcache->delete($key)) { |
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105 | if ($debug) ADOConnection::outp("CacheFlush: $key entery doesn't exist on memcached server!<br>\n"); |
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106 | } else { |
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107 | if ($debug) ADOConnection::outp("CacheFlush: $key entery flushed from memcached server!<br>\n"); |
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108 | } |
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109 | } else { |
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110 | if (!$memcache->flush()) { |
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111 | if ($debug) ADOConnection::outp("CacheFlush: Failure flushing all enteries from memcached server!<br>\n"); |
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112 | } else { |
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113 | if ($debug) ADOConnection::outp("CacheFlush: All enteries flushed from memcached server!<br>\n"); |
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114 | } |
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115 | } |
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116 | return; |
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117 | } |
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118 | ?> |
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