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Make it possible to load Lua dynamically on Unix. (Luis Carvalho)

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This commit is contained in:
Bram Moolenaar
2010-07-22 21:32:16 +02:00
parent 766fb0d2b2
commit 2334b6d594
8 changed files with 114 additions and 71 deletions
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27
src/if_lua.c
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@@ -41,6 +41,19 @@ static const char LUAVIM_FREE[] = "luaV_free";
#ifdef DYNAMIC_LUA
#ifndef WIN3264
# include <dlfcn.h>
# define HANDLE void*
# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
# define symbol_from_dll dlsym
# define close_dll dlclose
#else
# define load_dll LoadLibrary
# define symbol_from_dll GetProcAddress
# define close_dll FreeLibrary
#endif
/* lauxlib */
#define luaL_register dll_luaL_register
#define luaL_typerror dll_luaL_typerror
@@ -227,14 +240,14 @@ static const luaV_Reg luaV_dll[] = {
{NULL, NULL}
};
static HINSTANCE hinstLua = 0;
static HANDLE hinstLua = NULL;
static void
end_dynamic_lua(void)
{
if (hinstLua)
{
FreeLibrary(hinstLua);
close_dll(hinstLua);
hinstLua = 0;
}
}
@@ -244,7 +257,7 @@ lua_link_init(char *libname, int verbose)
{
const luaV_Reg *reg;
if (hinstLua) return OK;
hinstLua = LoadLibrary(libname);
hinstLua = load_dll(libname);
if (!hinstLua)
{
if (verbose)
@@ -253,8 +266,9 @@ lua_link_init(char *libname, int verbose)
}
for (reg = luaV_dll; reg->func; reg++)
{
if ((*reg->func = GetProcAddress(hinstLua, reg->name)) == NULL) {
FreeLibrary(hinstLua);
if ((*reg->func = symbol_from_dll(hinstLua, reg->name)) == NULL)
{
close_dll(hinstLua);
hinstLua = 0;
if (verbose)
EMSG2(_(e_loadfunc), reg->name);
@@ -364,7 +378,8 @@ luaV_pushtypval(lua_State *L, typval_T *tv)
/* check cache */
lua_pushlightuserdata(L, (void *) d);
lua_rawget(L, LUA_ENVIRONINDEX);
if (lua_isnil(L, -1)) { /* not interned? */
if (lua_isnil(L, -1)) /* not interned? */
{
hashtab_T *ht = &d->dv_hashtab;
hashitem_T *hi;
int n = ht->ht_used; /* remaining items */