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allow the sgi-webuci prepare_req function to reload the lua context if necessary (not used yet)

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This commit is contained in:
Felix Fietkau 2008-06-04 00:01:21 +00:00
parent 18efb3f75b
commit f7fab0d54f
2 changed files with 36 additions and 16 deletions
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1
libs/sgi-webuci/root/usr/lib/boa/luci.lua
View file

@ -47,6 +47,7 @@ function prepare_req(uri)
luci.dispatcher.createindex()
env = {}
env.REQUEST_URI = uri
-- TODO: setting luci-plugin.reload = true allows this function to trigger a context reload
end
function handle_req(context)

51
libs/sgi-webuci/src/luci.c
View file

@ -27,56 +27,63 @@ static lua_State *L = NULL;
extern int luci_parse_header (lua_State *L);
static int luci_init(struct httpd_plugin *p)
static lua_State *luci_context_init(struct httpd_plugin *p)
{
char *path = NULL;
lua_State *Lnew;
int ret = 0;
L = luaL_newstate();
if (!L)
Lnew = luaL_newstate();
if (!Lnew)
goto error;
luaL_openlibs(L);
luaL_openlibs(Lnew);
path = malloc(strlen(p->dir) + sizeof(LUAMAIN) + 2);
strcpy(path, p->dir);
strcat(path, "/" LUAMAIN);
ret = luaL_dofile(L, path);
ret = luaL_dofile(Lnew, path);
lua_getfield(L, LUA_GLOBALSINDEX, "luci-plugin");
lua_getfield(Lnew, LUA_GLOBALSINDEX, "luci-plugin");
do {
if (!lua_istable(L, -1)) {
if (!lua_istable(Lnew, -1)) {
ret = 1;
break;
}
lua_getfield(L, -1, "init");
if (!lua_isfunction(L, -1))
lua_getfield(Lnew, -1, "init");
if (!lua_isfunction(Lnew, -1))
break;
lua_pushstring(L, p->dir);
ret = lua_pcall(L, 1, 0, 0);
lua_pushstring(Lnew, p->dir);
ret = lua_pcall(Lnew, 1, 0, 0);
} while (0);
free(path);
if (ret != 0)
goto error;
return 1;
return Lnew;
error:
fprintf(stderr, "Error: ");
if (L) {
const char *s = lua_tostring(L, -1);
if (Lnew) {
const char *s = lua_tostring(Lnew, -1);
if (!s)
s = "unknown error";
fprintf(stderr, "%s\n", s);
lua_close(L);
lua_close(Lnew);
} else {
fprintf(stderr, "Out of memory!\n");
}
return 0;
return NULL;
}
static int luci_init(struct httpd_plugin *p)
{
L = luci_context_init(p);
return (L != NULL);
}
static void pushvar(char *name, char *val)
@ -116,8 +123,20 @@ done:
static int luci_prepare_req(struct httpd_plugin *p, struct http_context *ctx)
{
int ret;
bool reload = false;
lua_getglobal(L, "luci-plugin");
lua_getfield(L, -1, "reload");
if (lua_isboolean(L, -1))
reload = lua_toboolean(L, -1);
lua_pop(L, 1);
if (reload) {
lua_close(L);
L = luci_context_init(p);
lua_getglobal(L, "luci-plugin");
}
lua_getfield(L, -1, "prepare_req");
ret = lua_isfunction(L, -1);