moonbridge: moonbridge

moonbridge

annotate moonbridge_io.c @ 79:22dbb9d09f02

Stub for new non-blocking I/O library

author	jbe
date	Sun Apr 05 18:01:31 2015 +0200 (2015-04-05)
parents
children	1a0346580e6d

rev	line source
jbe@79	1
jbe@79	2 #include <stdlib.h>
jbe@79	3 #include <unistd.h>
jbe@79	4 #include <stdint.h>
jbe@79	5 #include <errno.h>
jbe@79	6 #include <string.h>
jbe@79	7 #include <stdio.h>
jbe@79	8 #include <time.h>
jbe@79	9 #include <sys/time.h>
jbe@79	10 #include <sys/socket.h>
jbe@79	11 #include <sys/select.h>
jbe@79	12
jbe@79	13 #include <lua.h>
jbe@79	14 #include <lauxlib.h>
jbe@79	15 #include <lualib.h>
jbe@79	16
jbe@79	17 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
jbe@79	18 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
jbe@79	19
jbe@79	20 typedef struct {
jbe@79	21 int fd;
jbe@79	22 } moonbr_io_handle_t;
jbe@79	23
jbe@79	24 void moonbr_io_pushhandle(lua_State *L, int fd) {
jbe@79	25 moonbr_io_handle_t *handle;
jbe@79	26 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
jbe@79	27 handle->fd = fd;
jbe@79	28 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@79	29 lua_setmetatable(L, -2);
jbe@79	30 lua_newtable(L); // uservalue
jbe@79	31 lua_newtable(L); // public
jbe@79	32 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
jbe@79	33 lua_setmetatable(L, -2);
jbe@79	34 lua_setfield(L, -2, "public");
jbe@79	35 lua_setuservalue(L, -2);
jbe@79	36 }
jbe@79	37
jbe@79	38 static int moonbr_io_handleindex(lua_State *L) {
jbe@79	39 lua_getuservalue(L, 1);
jbe@79	40 lua_getfield(L, -1, "public");
jbe@79	41 lua_pushvalue(L, 2);
jbe@79	42 lua_gettable(L, -2);
jbe@79	43 return 1;
jbe@79	44 }
jbe@79	45
jbe@79	46 static int moonbr_io_handlenewindex(lua_State *L) {
jbe@79	47 lua_getuservalue(L, 1);
jbe@79	48 lua_getfield(L, -1, "public");
jbe@79	49 lua_pushvalue(L, 2);
jbe@79	50 lua_pushvalue(L, 3);
jbe@79	51 lua_settable(L, -3);
jbe@79	52 return 0;
jbe@79	53 }
jbe@79	54
jbe@79	55 static int moonbr_io_getdummy(lua_State *L) {
jbe@79	56 moonbr_io_pushhandle(L, 1);
jbe@79	57 return 1;
jbe@79	58 }
jbe@79	59
jbe@79	60 static int moonbr_io_testmethod(lua_State *L) {
jbe@79	61 fprintf(stderr, "DEBUG\n");
jbe@79	62 return 0;
jbe@79	63 }
jbe@79	64
jbe@79	65 static const struct luaL_Reg moonbr_io_handle_methods[] = {
jbe@79	66 {"testmethod", moonbr_io_testmethod},
jbe@79	67 {NULL, NULL}
jbe@79	68 };
jbe@79	69
jbe@79	70 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
jbe@79	71 {"__index", moonbr_io_handleindex},
jbe@79	72 {"__newindex", moonbr_io_handlenewindex},
jbe@79	73 {NULL, NULL}
jbe@79	74 };
jbe@79	75
jbe@79	76 static const struct luaL_Reg moonbr_io_module_funcs[] = {
jbe@79	77 {"getdummy", moonbr_io_getdummy},
jbe@79	78 {NULL, NULL}
jbe@79	79 };
jbe@79	80
jbe@79	81 int luaopen_moonbridge_io(lua_State *L) {
jbe@79	82
jbe@79	83 lua_newtable(L); // public metatable
jbe@79	84 lua_newtable(L); // handle methods
jbe@79	85 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
jbe@79	86 lua_setfield(L, -2, "__index");
jbe@79	87 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
jbe@79	88
jbe@79	89 lua_newtable(L); // handle metatable
jbe@79	90 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
jbe@79	91 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
jbe@79	92
jbe@79	93 lua_newtable(L); // module
jbe@79	94 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
jbe@79	95 return 1;
jbe@79	96
jbe@79	97 }
jbe@79	98