annotate lua/luadyncall/src/ldynload.c @ 14:7752fcb107e7

- erlang binding build fix, linker arg was at wrong place
author cslag
date Sat, 26 Mar 2016 16:09:04 +0100
parents 0cfcc391201f
children
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0
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1 #include "lua.h"
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2 #include "lauxlib.h"
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3 #include "dynload.h"
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4
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5 int lua_dlLoadLibrary(lua_State *L)
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6 {
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7 const char* libpath;
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8 if ( lua_isnoneornil(L, 1) )
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9 libpath = NULL;
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10 else
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11 libpath = lua_tostring(L, 1);
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12 DLLib* pLib;
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13 pLib = dlLoadLibrary(libpath);
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14 if (pLib == NULL) return 0;
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15 lua_pushlightuserdata(L, pLib);
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16 return 1;
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17 }
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18
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19 int lua_dlFreeLibrary(lua_State *L)
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20 {
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21 DLLib* pLib = (DLLib*) lua_touserdata(L, 1);
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22 dlFreeLibrary(pLib);
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23 return 0;
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24 }
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25
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26 int lua_dlFindSymbol(lua_State *L)
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27 {
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28 DLLib* pLib = (void*) lua_touserdata(L, 1);
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29 const char* pSymbolName = (const char*) lua_tostring(L, 2);
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30 void* addr = dlFindSymbol(pLib, pSymbolName);
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31 if (addr == NULL) return 0;
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32 lua_pushlightuserdata(L, addr);
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33 return 1;
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34 }
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35
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36 static const struct luaL_Reg luareg_dynload[] =
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37 {
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38 { "dlLoadLibrary", lua_dlLoadLibrary },
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39 { "dlFreeLibrary", lua_dlFreeLibrary },
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40 { "dlFindSymbol", lua_dlFindSymbol },
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41 { NULL, NULL }
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42 };
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43
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44 // LUALIB_API
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45 int luaopen_ldynload(lua_State *L)
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46 {
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47 lua_createtable(L, 0, 0);
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48 luaL_register(L, NULL, luareg_dynload);
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49 return 1;
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50 }
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51