prosody
59557bc3c4b8
util-src/table.c

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util-src/table.c @ 12084:59557bc3c4b8 0.11

net.server_epoll: Process all queued events from epoll before timers Should call timers less frequently when many sockets are waiting for processing. May help under heavy load. Requested by Ge0rG Backport of 2bcd84123eba requested by Roi
author Kim Alvefur <zash@zash.se>
date Thu, 21 Oct 2021 15:59:16 +0200
parent 7969:1c6a07606309
child 12402:8deb401a21f6
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7c4cf87f4dff util.table, Makefile: New C module that allows pre-allocation of tables to improve performance and decrease memory fragmentation
Matthew Wild <mwild1@gmail.com>
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1 #include <lua.h>
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2 #include <lauxlib.h>
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3
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4 static int Lcreate_table(lua_State *L) {
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5 lua_createtable(L, luaL_checkinteger(L, 1), luaL_checkinteger(L, 2));
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6 return 1;
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7 }
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8
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9 static int Lpack(lua_State *L) {
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10 unsigned int n_args = lua_gettop(L);
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11 lua_createtable(L, n_args, 1);
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12 lua_insert(L, 1);
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14 for(int arg = n_args; arg >= 1; arg--) {
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15 lua_rawseti(L, 1, arg);
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16 }
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18 lua_pushinteger(L, n_args);
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19 lua_setfield(L, -2, "n");
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20 return 1;
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21 }
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22
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23 int luaopen_util_table(lua_State *L) {
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24 #if (LUA_VERSION_NUM > 501)
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25 luaL_checkversion(L);
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26 #endif
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27 lua_createtable(L, 0, 2);
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28 lua_pushcfunction(L, Lcreate_table);
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29 lua_setfield(L, -2, "create");
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30 lua_pushcfunction(L, Lpack);
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31 lua_setfield(L, -2, "pack");
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32 return 1;
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33 }