* limitations under the License.
*/
-#include <lua.h>
-#include <lualib.h>
-#include <lauxlib.h>
+#include "nixio.h"
#include <stdio.h>
#include <string.h>
#include <errno.h>
-#include "nixio.h"
#define VERSION 0.1
/* pushes nil, error number and errstring on the stack */
int nixio__perror(lua_State *L) {
- lua_pushnil(L);
+ if (errno == EAGAIN) {
+ lua_pushboolean(L, 0);
+ } else {
+ lua_pushnil(L);
+ }
lua_pushinteger(L, errno);
lua_pushstring(L, strerror(errno));
return 3;
return sock;
}
+FILE* nixio__checkfile(lua_State *L) {
+ FILE **fpp = (FILE**)luaL_checkudata(L, 1, NIXIO_FILE_META);
+ luaL_argcheck(L, *fpp, 1, "invalid file object");
+ return *fpp;
+}
+
/* read fd from nixio_sock object */
int nixio__checksockfd(lua_State *L) {
return nixio__checksock(L)->fd;
int nixio__tofd(lua_State *L, int ud) {
void *udata = lua_touserdata(L, ud);
int fd = -1;
- if (udata && lua_getmetatable(L, ud)) {
+ if (lua_getmetatable(L, ud)) {
luaL_getmetatable(L, NIXIO_META);
+ luaL_getmetatable(L, NIXIO_FILE_META);
luaL_getmetatable(L, LUA_FILEHANDLE);
- if (lua_rawequal(L, -2, -3)) {
+ if (lua_rawequal(L, -3, -4)) {
fd = ((nixio_sock*)udata)->fd;
- } else if (lua_rawequal(L, -1, -3)) {
- fd = fileno(*((FILE **)udata));
+ } else if (lua_rawequal(L, -2, -4) || lua_rawequal(L, -1, -4)) {
+ fd = (*((FILE **)udata)) ? fileno(*((FILE **)udata)) : -1;
}
- lua_pop(L, 3);
+ lua_pop(L, 4);
}
return fd;
}
+static int nixio_strerror(lua_State *L) {
+ lua_pushstring(L, strerror(luaL_checkinteger(L, 1)));
+ return 1;
+}
+
/* object table */
static const luaL_reg R[] = {
+ {"strerror", nixio_strerror},
{NULL, NULL}
};
/* create metatable */
luaL_newmetatable(L, NIXIO_META);
- /* method table */
- lua_newtable(L);
+ /* metatable.__index = metatable */
lua_pushvalue(L, -1);
-
- /* metatable.__index = M */
- lua_setfield(L, -3, "__index");
- lua_remove(L, -2);
+ lua_setfield(L, -2, "__index");
/* register module */
luaL_register(L, "nixio", R);
+ /* register metatable as socket_meta */
+ lua_pushvalue(L, -2);
+ lua_setfield(L, -2, "meta_socket");
+
/* register methods */
+ nixio_open_file(L);
nixio_open_socket(L);
nixio_open_sockopt(L);
nixio_open_bind(L);
nixio_open_address(L);
nixio_open_poll(L);
nixio_open_io(L);
+ nixio_open_splice(L);
+ nixio_open_tls_context(L);
+ nixio_open_tls_socket(L);
/* module version */
lua_pushnumber(L, VERSION);
lua_setfield(L, -2, "version");
+ /* some constants */
+ lua_createtable(L, 0, 7);
+
+ NIXIO_PUSH_CONSTANT(EACCES);
+ NIXIO_PUSH_CONSTANT(ENOSYS);
+ NIXIO_PUSH_CONSTANT(EINVAL);
+ NIXIO_PUSH_CONSTANT(EWOULDBLOCK);
+ NIXIO_PUSH_CONSTANT(EAGAIN);
+ NIXIO_PUSH_CONSTANT(ENOMEM);
+ NIXIO_PUSH_CONSTANT(ENOENT);
+
+ lua_setfield(L, -2, "const");
+
/* remove meta table */
lua_remove(L, -2);