Software /
code /
prosody
File
util-src/strbitop.c @ 13147:e560f7c691ce
util.sqlite3: Don't cache prepared statements for one-off queries
The :execute method is mainly used for one-off queries such as creating
tables and indices. There is no need to cache this prepared statement,
as those queries are only done on startup.
Further, prepared statements can't be reused without being reset, so
this was likely broken anyway.
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 10 Jun 2023 22:20:26 +0200 (19 months ago) |
parent | 12976:a187600ec7d6 |
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/* * This project is MIT licensed. Please see the * COPYING file in the source package for more information. * * Copyright (C) 2016 Kim Alvefur */ #include <lua.h> #include <lauxlib.h> /* TODO Deduplicate code somehow */ static int strop_and(lua_State *L) { luaL_Buffer buf; size_t a, b, i; const char *str_a = luaL_checklstring(L, 1, &a); const char *str_b = luaL_checklstring(L, 2, &b); luaL_buffinit(L, &buf); if(a == 0 || b == 0) { lua_settop(L, 1); return 1; } for(i = 0; i < a; i++) { luaL_addchar(&buf, str_a[i] & str_b[i % b]); } luaL_pushresult(&buf); return 1; } static int strop_or(lua_State *L) { luaL_Buffer buf; size_t a, b, i; const char *str_a = luaL_checklstring(L, 1, &a); const char *str_b = luaL_checklstring(L, 2, &b); luaL_buffinit(L, &buf); if(a == 0 || b == 0) { lua_settop(L, 1); return 1; } for(i = 0; i < a; i++) { luaL_addchar(&buf, str_a[i] | str_b[i % b]); } luaL_pushresult(&buf); return 1; } static int strop_xor(lua_State *L) { luaL_Buffer buf; size_t a, b, i; const char *str_a = luaL_checklstring(L, 1, &a); const char *str_b = luaL_checklstring(L, 2, &b); luaL_buffinit(L, &buf); if(a == 0 || b == 0) { lua_settop(L, 1); return 1; } for(i = 0; i < a; i++) { luaL_addchar(&buf, str_a[i] ^ str_b[i % b]); } luaL_pushresult(&buf); return 1; } LUA_API int luaopen_prosody_util_strbitop(lua_State *L) { luaL_Reg exports[] = { { "sand", strop_and }, { "sor", strop_or }, { "sxor", strop_xor }, { NULL, NULL } }; lua_newtable(L); luaL_setfuncs(L, exports, 0); return 1; } LUA_API int luaopen_util_strbitop(lua_State *L) { return luaopen_prosody_util_strbitop(L); }