#include "../uloop.h"
#include "../list.h"
+struct lua_uloop_fd {
+ struct uloop_fd fd;
+ int r;
+ int fd_r;
+};
+
struct lua_uloop_timeout {
struct uloop_timeout t;
int r;
static lua_State *state;
+static void *
+ul_create_userdata(lua_State *L, size_t size, const luaL_Reg *reg, lua_CFunction gc)
+{
+ void *ret = lua_newuserdata(L, size);
+
+ memset(ret, 0, size);
+ lua_createtable(L, 0, 2);
+ lua_pushvalue(L, -1);
+ lua_setfield(L, -2, "__index");
+ lua_pushcfunction(L, gc);
+ lua_setfield(L, -2, "__gc");
+ lua_pushvalue(L, -1);
+ lua_setmetatable(L, -3);
+ lua_pushvalue(L, -2);
+ luaI_openlib(L, NULL, reg, 1);
+ lua_pushvalue(L, -2);
+
+ return ret;
+}
+
static void ul_timer_cb(struct uloop_timeout *t)
{
struct lua_uloop_timeout *tout = container_of(t, struct lua_uloop_timeout, t);
lua_getglobal(state, "__uloop_cb");
lua_rawgeti(state, -1, tout->r);
+ lua_remove(state, -2);
+
lua_call(state, 0, 0);
+
}
static int ul_timer_set(lua_State *L)
struct lua_uloop_timeout *tout = lua_touserdata(L, 1);
uloop_timeout_cancel(&tout->t);
+
+ /* obj.__index.__gc = nil , make sure executing only once*/
+ lua_getfield(L, -1, "__index");
+ lua_pushstring(L, "__gc");
+ lua_pushnil(L);
+ lua_settable(L, -3);
+
lua_getglobal(state, "__uloop_cb");
- luaL_unref(L, -1, tout->r);
+ luaL_unref(state, -1, tout->r);
return 1;
}
lua_pushvalue(L, -2);
ref = luaL_ref(L, -2);
- tout = lua_newuserdata(L, sizeof(*tout));
- lua_createtable(L, 0, 2);
- lua_pushvalue(L, -1);
- lua_setfield(L, -2, "__index");
- lua_pushcfunction(L, ul_timer_free);
- lua_setfield(L, -2, "__gc");
- lua_pushvalue(L, -1);
- lua_setmetatable(L, -3);
- lua_pushvalue(L, -2);
- luaI_openlib(L, NULL, timer_m, 1);
- lua_pushvalue(L, -2);
-
- memset(tout, 0, sizeof(*tout));
-
+ tout = ul_create_userdata(L, sizeof(*tout), timer_m, ul_timer_free);
tout->r = ref;
tout->t.cb = ul_timer_cb;
+
if (set)
uloop_timeout_set(&tout->t, set);
return 1;
}
+static void ul_ufd_cb(struct uloop_fd *fd, unsigned int events)
+{
+ struct lua_uloop_fd *ufd = container_of(fd, struct lua_uloop_fd, fd);
+
+ lua_getglobal(state, "__uloop_cb");
+ lua_rawgeti(state, -1, ufd->r);
+ lua_remove(state, -2);
+
+ /* push fd object */
+ lua_getglobal(state, "__uloop_fds");
+ lua_rawgeti(state, -1, ufd->fd_r);
+ lua_remove(state, -2);
+
+ /* push events */
+ lua_pushinteger(state, events);
+ lua_call(state, 2, 0);
+}
+
+
+static int get_sock_fd(lua_State* L, int idx) {
+ int fd;
+ if(lua_isnumber(L, idx)) {
+ fd = lua_tonumber(L, idx);
+ } else {
+ luaL_checktype(L, idx, LUA_TUSERDATA);
+ lua_getfield(L, idx, "getfd");
+ if(lua_isnil(L, -1))
+ return luaL_error(L, "socket type missing 'getfd' method");
+ lua_pushvalue(L, idx - 1);
+ lua_call(L, 1, 1);
+ fd = lua_tointeger(L, -1);
+ lua_pop(L, 1);
+ }
+ return fd;
+}
+
+static int ul_ufd_delete(lua_State *L)
+{
+ struct lua_uloop_fd *ufd = lua_touserdata(L, 1);
+
+ uloop_fd_delete(&ufd->fd);
+
+ /* obj.__index.__gc = nil , make sure executing only once*/
+ lua_getfield(L, -1, "__index");
+ lua_pushstring(L, "__gc");
+ lua_pushnil(L);
+ lua_settable(L, -3);
+
+ lua_getglobal(state, "__uloop_cb");
+ luaL_unref(state, -1, ufd->r);
+ lua_remove(state, -1);
+
+ lua_getglobal(state, "__uloop_fds");
+ luaL_unref(state, -1, ufd->fd_r);
+ lua_remove(state, -1);
+
+ return 1;
+}
+
+static const luaL_Reg ufd_m[] = {
+ { "delete", ul_ufd_delete },
+ { NULL, NULL }
+};
+
+static int ul_ufd_add(lua_State *L)
+{
+ struct lua_uloop_fd *ufd;
+ int fd = 0;
+ unsigned int flags = 0;
+ int ref;
+ int fd_ref;
+
+ if (lua_isnumber(L, -1)) {
+ flags = lua_tointeger(L, -1);
+ lua_pop(L, 1);
+ }
+
+ if (!lua_isfunction(L, -1)) {
+ lua_pushstring(L, "invalid arg list");
+ lua_error(L);
+
+ return 0;
+ }
+
+ fd = get_sock_fd(L, -2);
+
+ lua_getglobal(L, "__uloop_cb");
+ lua_pushvalue(L, -2);
+ ref = luaL_ref(L, -2);
+ lua_pop(L, 1);
+
+ lua_getglobal(L, "__uloop_fds");
+ lua_pushvalue(L, -3);
+ fd_ref = luaL_ref(L, -2);
+ lua_pop(L, 1);
+
+ ufd = ul_create_userdata(L, sizeof(*ufd), ufd_m, ul_ufd_delete);
+ ufd->r = ref;
+ ufd->fd.fd = fd;
+ ufd->fd_r = fd_ref;
+ ufd->fd.cb = ul_ufd_cb;
+ if (flags)
+ uloop_fd_add(&ufd->fd, flags);
+
+ return 1;
+}
+
+static int ul_process_free(lua_State *L)
+{
+ struct lua_uloop_process *proc = lua_touserdata(L, 1);
+
+ /* obj.__index.__gc = nil , make sure executing only once*/
+ lua_getfield(L, -1, "__index");
+ lua_pushstring(L, "__gc");
+ lua_pushnil(L);
+ lua_settable(L, -3);
+
+ if (proc->r != LUA_NOREF) {
+ uloop_process_delete(&proc->p);
+
+ lua_getglobal(state, "__uloop_cb");
+ luaL_unref(state, -1, proc->r);
+ lua_remove(state, -1);
+ }
+
+ return 1;
+}
+
+static const luaL_Reg process_m[] = {
+ { "delete", ul_process_free },
+ { NULL, NULL }
+};
+
static void ul_process_cb(struct uloop_process *p, int ret)
{
struct lua_uloop_process *proc = container_of(p, struct lua_uloop_process, p);
lua_getglobal(state, "__uloop_cb");
lua_rawgeti(state, -1, proc->r);
+
luaL_unref(state, -2, proc->r);
+ proc->r = LUA_NOREF;
+ lua_remove(state, -2);
lua_pushinteger(state, ret >> 8);
lua_call(state, 1, 0);
}
lua_pushvalue(L, -2);
ref = luaL_ref(L, -2);
- proc = lua_newuserdata(L, sizeof(*proc));
- memset(proc, 0, sizeof(*proc));
-
+ proc = ul_create_userdata(L, sizeof(*proc), process_m, ul_process_free);
proc->r = ref;
proc->p.pid = pid;
proc->p.cb = ul_process_cb;
return 1;
}
+static int ul_end(lua_State *L)
+{
+ uloop_end();
+ return 1;
+}
+
static luaL_reg uloop_func[] = {
{"init", ul_init},
{"run", ul_run},
{"timer", ul_timer},
{"process", ul_process},
+ {"fd_add", ul_ufd_add},
+ {"cancel", ul_end},
{NULL, NULL},
};
+/* avoid warnings about missing declarations */
+int luaopen_uloop(lua_State *L);
+int luaclose_uloop(lua_State *L);
+
int luaopen_uloop(lua_State *L)
{
state = L;
lua_createtable(L, 1, 0);
lua_setglobal(L, "__uloop_cb");
+ lua_createtable(L, 1, 0);
+ lua_setglobal(L, "__uloop_fds");
+
luaL_openlib(L, "uloop", uloop_func, 0);
lua_pushstring(L, "_VERSION");
lua_pushstring(L, "1.0");
lua_rawset(L, -3);
+ lua_pushstring(L, "ULOOP_READ");
+ lua_pushinteger(L, ULOOP_READ);
+ lua_rawset(L, -3);
+
+ lua_pushstring(L, "ULOOP_WRITE");
+ lua_pushinteger(L, ULOOP_WRITE);
+ lua_rawset(L, -3);
+
+ lua_pushstring(L, "ULOOP_EDGE_TRIGGER");
+ lua_pushinteger(L, ULOOP_EDGE_TRIGGER);
+ lua_rawset(L, -3);
+
+ lua_pushstring(L, "ULOOP_BLOCKING");
+ lua_pushinteger(L, ULOOP_BLOCKING);
+ lua_rawset(L, -3);
+
return 1;
}
projects / project / libubox.git / blobdiff