prosody
d3649ae194ab
util-src/compat.c

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util-src/compat.c @ 13556:d3649ae194ab

mod_s2s: Clone queued outgoing stanzas to prevent changes This clone call was lost in 902d25cd0557 Affects e.g. presence broadcasts, where the same stanza is sent many times while mutating the 'to' attribute.
author Kim Alvefur <zash@zash.se>
date Sun, 10 Nov 2024 15:10:26 +0100
parent 12976:a187600ec7d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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cfc7b2f7251e util.xpcall, util.compat: Add non-hacky multi-argument xpcall() for Lua 5.1
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1
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2 #include <lua.h>
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3 #include <lauxlib.h>
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6 static int lc_xpcall (lua_State *L) {
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7 int ret;
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8 int n_arg = lua_gettop(L);
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9 /* f, msgh, p1, p2... */
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10 luaL_argcheck(L, n_arg >= 2, 2, "value expected");
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11 lua_pushvalue(L, 1); /* f to top */
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12 lua_pushvalue(L, 2); /* msgh to top */
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13 lua_replace(L, 1); /* msgh to 1 */
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14 lua_replace(L, 2); /* f to 2 */
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15 /* msgh, f, p1, p2... */
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16 ret = lua_pcall(L, n_arg - 2, LUA_MULTRET, 1);
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17 lua_pushboolean(L, ret == 0);
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18 lua_replace(L, 1);
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19 return lua_gettop(L);
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20 }
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21
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22 int luaopen_prosody_util_compat(lua_State *L) {
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23 lua_createtable(L, 0, 2);
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24 {
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25 lua_pushcfunction(L, lc_xpcall);
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26 lua_setfield(L, -2, "xpcall");
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27 }
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28 return 1;
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29 }
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30
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31 int luaopen_util_compat(lua_State *L) {
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32 return luaopen_prosody_util_compat(L);
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33 }