Mercurial > prosody-modules

annotate mod_storage_memory/mod_storage_memory.lua @ 2608:362ca94192ee

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mod_smacks: Add resumed session to event "smacks-hibernation-end" Older versions of this event only have the "intermediate" session in event.session (the one used to resume the existing session), but not the resumed one. This adds event.resumed which contains the resumed one alongside to event.session.
author tmolitor <thilo@eightysoft.de>
date Sat, 11 Mar 2017 01:37:28 +0100
parents a347b71adb07
children 1e4bbff0a6fd
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fa7e402fcdc1 mod_storage_memory: Simple in-memory only storage backend without persistence
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1
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2 local memory = setmetatable({}, {
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3 __index = function(t, k)
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4 local store = module:shared(k)
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5 t[k] = store;
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6 return store;
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7 end
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8 });
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9
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10 local NULL = {};
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11
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12 local keyval_store = {};
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13 keyval_store.__index = keyval_store;
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14
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15 function keyval_store:get(username)
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16 return self.store[username or NULL];
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17 end
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18
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19 function keyval_store:set(username, data)
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20 self.store[username or NULL] = data;
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21 return true;
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22 end
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23
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24 local map_store = {};
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25 map_store.__index = map_store;
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26
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27 function map_store:get(username, key)
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28 local userstore = self.store[username or NULL];
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29 if type(userstore) == "table" then
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30 return userstore[key];
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31 end
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32 end
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33
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34 function map_store:set(username, key, data)
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35 local userstore = self.store[username or NULL];
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36 if userstore == nil then
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37 userstore = {};
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38 self.store[username or NULL] = userstore;
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39 end
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40 userstore[key] = data;
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41 return true;
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42 end
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43
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44 map_store.remove = {};
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45 function map_store:set_keys(username, keydatas)
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46 local userstore = self.store[username or NULL];
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47 if userstore == nil then
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48 userstore = {};
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49 self.store[username or NULL] = userstore;
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50 end
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51 for k,v in pairs(keydatas) do
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52 if v == self.remove then v = nil; end
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53 userstore[k] = v;
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54 end
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55 return true;
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56 end
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57
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58 local archive_store = {};
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59 archive_store.__index = archive_store;
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60
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61 function archive_store:append(username, key, value, when, with)
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62 if type(when) ~= "number" then
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63 when, with, value = value, when, with;
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64 end
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65 local a = self.store[username or NULL];
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66 if not a then
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67 a = {};
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68 self.store[username or NULL] = a;
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69 end
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70 local i = #a+1;
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71 local v = { key = key, when = when, with = with, value = value };
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72 if not key or a[key] then
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73 key = tostring(a):match"%x+$"..tostring(v):match"%x+$";
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74 v.key = key;
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75 end
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76 a[i] = v;
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77 a[key] = i;
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78 return true;
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79 end
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80
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81 local function archive_iter (a, start, stop, step, limit, when_start, when_end, match_with)
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82 local item, when, with;
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83 local count = 0;
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84 coroutine.yield(true); -- Ready
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85 for i = start, stop, step do
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86 item = a[i];
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87 when, with = item.when, item.with;
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88 if when >= when_start and when_end >= when and (not match_with or match_with == with) then
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89 coroutine.yield(item.key, item.value, when, with);
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90 count = count + 1;
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91 if limit and count >= limit then return end
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92 end
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93 end
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94 end
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95
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96 function archive_store:find(username, query)
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97 local a = self.store[username or NULL] or {};
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98 local start, stop, step = 1, #a, 1;
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99 local qstart, qend, qwith = -math.huge, math.huge;
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100 local limit;
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101 if query then
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102 module:log("debug", "query included")
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103 if query.reverse then
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104 start, stop, step = stop, start, -1;
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105 if query.before then
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106 start = a[query.before];
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107 end
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108 elseif query.after then
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109 start = a[query.after];
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110 end
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111 limit = query.limit;
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112 qstart = query.start or qstart;
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113 qend = query["end"] or qend;
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114 end
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115 if not start then return nil, "invalid-key"; end
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116 local iter = coroutine.wrap(archive_iter);
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117 iter(a, start, stop, step, limit, qstart, qend, qwith);
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118 return iter;
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119 end
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120
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121 function archive_store:delete(username, query)
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122 if not query or next(query) == nil then
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123 self.store[username or NULL] = nil;
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124 return true;
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125 end
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126 local old = self.store[username or NULL];
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127 if not old then return true; end
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128 local qstart = query.start or -math.huge;
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129 local qend = query["end"] or math.huge;
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130 local qwith = query.with;
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131 local new = {};
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132 self.store[username or NULL] = new;
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133 local t;
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Kim Alvefur <zash@zash.se>
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134 for i = 1, #old do
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Kim Alvefur <zash@zash.se>
parents: 1607
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135 i = old[i];
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Kim Alvefur <zash@zash.se>
parents: 1607
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136 t = i.when;
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Kim Alvefur <zash@zash.se>
parents: 1607
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137 if not(qstart >= t and qend <= t and (not qwith or i.with == qwith)) then
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54c8a0cb2996 mod_storage_(archive-capable): Change order of arguments to :append to be the same as return values from :find iterator (see prosody 41725f3df3cc)
Kim Alvefur <zash@zash.se>
parents: 1608
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138 self:append(username, i.key, i.value, t, i.with);
1608
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139 end
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parents: 1607
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140 end
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Kim Alvefur <zash@zash.se>
parents: 1607
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141 if #new == 0 then
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4454f124465a mod_storage_memory: Support for empty username stores
Matthew Wild <mwild1@gmail.com>
parents: 1760
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142 self.store[username or NULL] = nil;
1608
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Kim Alvefur <zash@zash.se>
parents: 1607
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143 end
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Kim Alvefur <zash@zash.se>
parents: 1607
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144 return true;
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Kim Alvefur <zash@zash.se>
parents: 1607
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145 end
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Kim Alvefur <zash@zash.se>
parents: 1607
diff changeset
146
1259
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
147 local stores = {
fa7e402fcdc1 mod_storage_memory: Simple in-memory only storage backend without persistence
Kim Alvefur <zash@zash.se>
parents:
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148 keyval = keyval_store;
1607
8b997d9cf09e mod_storage_memory: Add support for map stores
Kim Alvefur <zash@zash.se>
parents: 1259
diff changeset
149 map = map_store;
1608
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Kim Alvefur <zash@zash.se>
parents: 1607
diff changeset
150 archive = archive_store;
1259
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
151 }
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Kim Alvefur <zash@zash.se>
parents:
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152
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
153 local driver = {};
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Kim Alvefur <zash@zash.se>
parents:
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154
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
155 function driver:open(store, typ)
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
156 local store_mt = stores[typ or "keyval"];
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
157 if store_mt then
fa7e402fcdc1 mod_storage_memory: Simple in-memory only storage backend without persistence
Kim Alvefur <zash@zash.se>
parents:
diff changeset
158 return setmetatable({ store = memory[store] }, store_mt);
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Kim Alvefur <zash@zash.se>
parents:
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159 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
160 return nil, "unsupported-store";
fa7e402fcdc1 mod_storage_memory: Simple in-memory only storage backend without persistence
Kim Alvefur <zash@zash.se>
parents:
diff changeset
161 end
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
162
fa7e402fcdc1 mod_storage_memory: Simple in-memory only storage backend without persistence
Kim Alvefur <zash@zash.se>
parents:
diff changeset
163 module:provides("storage", driver);