summaryrefslogtreecommitdiffhomepage
path: root/libs/lmo/src
diff options
context:
space:
mode:
Diffstat (limited to 'libs/lmo/src')
-rw-r--r--libs/lmo/src/lmo_lualib.c103
-rw-r--r--libs/lmo/src/lmo_lualib.h9
2 files changed, 103 insertions, 9 deletions
diff --git a/libs/lmo/src/lmo_lualib.c b/libs/lmo/src/lmo_lualib.c
index 676f788d28..59d88a15eb 100644
--- a/libs/lmo/src/lmo_lualib.c
+++ b/libs/lmo/src/lmo_lualib.c
@@ -53,15 +53,40 @@ static int lmo_L_hash(lua_State *L) {
return 1;
}
+static lmo_luaentry_t *_lmo_push_entry(lua_State *L) {
+ lmo_luaentry_t *le;
+
+ if( (le = lua_newuserdata(L, sizeof(lmo_luaentry_t))) != NULL )
+ {
+ luaL_getmetatable(L, LMO_ENTRY_META);
+ lua_setmetatable(L, -2);
+
+ return le;
+ }
+
+ return NULL;
+}
+
static int _lmo_lookup(lua_State *L, lmo_archive_t *ar, uint32_t hash) {
lmo_entry_t *e = ar->index;
+ lmo_luaentry_t *le = NULL;
while( e != NULL )
{
if( e->key_id == hash )
{
- lua_pushlstring(L, &ar->mmap[e->offset], e->length);
- return 1;
+ if( (le = _lmo_push_entry(L)) != NULL )
+ {
+ le->archive = ar;
+ le->entry = e;
+ return 1;
+ }
+ else
+ {
+ lua_pushnil(L);
+ lua_pushstring(L, "out of memory");
+ return 2;
+ }
}
e = e->next;
@@ -121,15 +146,69 @@ static int lmo_L__tostring(lua_State *L) {
}
-/* method table */
+static int _lmo_convert_entry(lua_State *L, int idx) {
+ lmo_luaentry_t *le = luaL_checkudata(L, idx, LMO_ENTRY_META);
+
+ lua_pushlstring(L,
+ &le->archive->mmap[le->entry->offset],
+ le->entry->length
+ );
+
+ return 1;
+}
+
+static int lmo_L_entry__tostring(lua_State *L) {
+ return _lmo_convert_entry(L, 1);
+}
+
+static int lmo_L_entry__concat(lua_State *L) {
+ if( lua_isuserdata(L, 1) )
+ _lmo_convert_entry(L, 1);
+ else
+ lua_pushstring(L, lua_tostring(L, 1));
+
+ if( lua_isuserdata(L, 2) )
+ _lmo_convert_entry(L, 2);
+ else
+ lua_pushstring(L, lua_tostring(L, 2));
+
+ lua_concat(L, 2);
+
+ return 1;
+}
+
+static int lmo_L_entry__len(lua_State *L) {
+ lmo_luaentry_t *le = luaL_checkudata(L, 1, LMO_ENTRY_META);
+ lua_pushinteger(L, le->entry->length);
+ return 1;
+}
+
+static int lmo_L_entry__gc(lua_State *L) {
+ lmo_luaentry_t *le = luaL_checkudata(L, 1, LMO_ENTRY_META);
+ le->archive = NULL;
+ le->entry = NULL;
+ return 0;
+}
+
+
+/* lmo method table */
static const luaL_reg M[] = {
- {"close", lmo_L__gc},
- {"get", lmo_L_get},
- {"lookup", lmo_L_lookup},
- {"foreach", lmo_L_foreach},
+ {"close", lmo_L__gc},
+ {"get", lmo_L_get},
+ {"lookup", lmo_L_lookup},
+ {"foreach", lmo_L_foreach},
{"__tostring", lmo_L__tostring},
- {"__gc", lmo_L__gc},
- {NULL, NULL}
+ {"__gc", lmo_L__gc},
+ {NULL, NULL}
+};
+
+/* lmo.entry method table */
+static const luaL_reg E[] = {
+ {"__tostring", lmo_L_entry__tostring},
+ {"__concat", lmo_L_entry__concat},
+ {"__len", lmo_L_entry__len},
+ {"__gc", lmo_L_entry__gc},
+ {NULL, NULL}
};
/* module table */
@@ -146,6 +225,12 @@ LUALIB_API int luaopen_lmo(lua_State *L) {
lua_setfield(L, -2, "__index");
lua_setglobal(L, LMO_ARCHIVE_META);
+ luaL_newmetatable(L, LMO_ENTRY_META);
+ luaL_register(L, NULL, E);
+ lua_pushvalue(L, -1);
+ lua_setfield(L, -2, "__index");
+ lua_setglobal(L, LMO_ENTRY_META);
+
luaL_register(L, LMO_LUALIB_META, R);
return 1;
diff --git a/libs/lmo/src/lmo_lualib.h b/libs/lmo/src/lmo_lualib.h
index 096fa027fb..6435117334 100644
--- a/libs/lmo/src/lmo_lualib.h
+++ b/libs/lmo/src/lmo_lualib.h
@@ -27,6 +27,15 @@
#define LMO_LUALIB_META "lmo"
#define LMO_ARCHIVE_META "lmo.archive"
+#define LMO_ENTRY_META "lmo.entry"
+
+struct lmo_luaentry {
+ lmo_archive_t *archive;
+ lmo_entry_t *entry;
+};
+
+typedef struct lmo_luaentry lmo_luaentry_t;
+
LUALIB_API int luaopen_lmo(lua_State *L);