rev |
line source |
jbe@79
|
1
|
jbe@137
|
2 #if defined(__linux__)
|
jbe@137
|
3 #define _GNU_SOURCE
|
jbe@137
|
4 #endif
|
jbe@79
|
5 #include <stdlib.h>
|
jbe@135
|
6 #include <stdint.h>
|
jbe@135
|
7 #include <string.h>
|
jbe@135
|
8 #include <errno.h>
|
jbe@79
|
9 #include <unistd.h>
|
jbe@135
|
10 #include <signal.h>
|
jbe@135
|
11 #include <fcntl.h>
|
jbe@135
|
12 #include <sys/stat.h>
|
jbe@79
|
13 #include <sys/socket.h>
|
jbe@111
|
14 #include <sys/un.h>
|
jbe@95
|
15 #include <netinet/in.h>
|
jbe@95
|
16 #include <netinet/tcp.h>
|
jbe@135
|
17 #include <sys/select.h>
|
jbe@136
|
18 #include <time.h>
|
jbe@135
|
19 #include <netdb.h>
|
jbe@107
|
20 #include <arpa/inet.h>
|
jbe@79
|
21
|
jbe@79
|
22 #include <lua.h>
|
jbe@79
|
23 #include <lauxlib.h>
|
jbe@79
|
24 #include <lualib.h>
|
jbe@79
|
25
|
jbe@80
|
26 #define MOONBR_IO_MAXSTRERRORLEN 80
|
jbe@85
|
27 #define MOONBR_IO_READBUFLEN 4096
|
jbe@80
|
28 #define MOONBR_IO_WRITEBUFLEN 4096
|
jbe@80
|
29
|
jbe@108
|
30 #define MOONBR_IO_LISTEN_BACKLOG 1024
|
jbe@108
|
31
|
jbe@80
|
32 #define moonbr_io_errmsg() \
|
jbe@80
|
33 char errmsg[MOONBR_IO_MAXSTRERRORLEN]; \
|
jbe@80
|
34 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
|
jbe@80
|
35
|
jbe@79
|
36 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
|
jbe@79
|
37 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
|
jbe@108
|
38 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
|
jbe@79
|
39
|
jbe@79
|
40 typedef struct {
|
jbe@79
|
41 int fd;
|
jbe@107
|
42 int issock;
|
jbe@107
|
43 sa_family_t addrfam;
|
jbe@94
|
44 int finished;
|
jbe@94
|
45 int closed;
|
jbe@81
|
46 int nonblocking;
|
jbe@95
|
47 int nopush;
|
jbe@85
|
48 int readerr;
|
jbe@105
|
49 int readbufin;
|
jbe@105
|
50 int readbufout;
|
jbe@81
|
51 int writeerr;
|
jbe@83
|
52 size_t writeleft;
|
jbe@132
|
53 size_t flushedleft;
|
jbe@83
|
54 #if LUA_VERSION_NUM >= 503
|
jbe@83
|
55 lua_Integer writeqin;
|
jbe@83
|
56 lua_Integer writeqout;
|
jbe@83
|
57 #else
|
jbe@83
|
58 int writeqin;
|
jbe@83
|
59 int writeqout;
|
jbe@83
|
60 #endif
|
jbe@83
|
61 size_t writeqoff;
|
jbe@103
|
62 int writebufin;
|
jbe@103
|
63 int writebufout;
|
jbe@85
|
64 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
65 char writebuf[MOONBR_IO_WRITEBUFLEN];
|
jbe@79
|
66 } moonbr_io_handle_t;
|
jbe@79
|
67
|
jbe@108
|
68 typedef struct {
|
jbe@108
|
69 int fd;
|
jbe@118
|
70 sa_family_t addrfam;
|
jbe@108
|
71 int nonblocking;
|
jbe@108
|
72 } moonbr_io_listener_t;
|
jbe@108
|
73
|
jbe@140
|
74 static int moonbr_io_yield(lua_State *L) {
|
jbe@140
|
75 return lua_yield(L, 0);
|
jbe@140
|
76 }
|
jbe@140
|
77
|
jbe@140
|
78 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
79 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
80 #else
|
jbe@140
|
81 static int moonbr_io_cont_returnall(lua_State *L) {
|
jbe@140
|
82 #endif
|
jbe@140
|
83 return lua_gettop(L);
|
jbe@140
|
84 }
|
jbe@140
|
85
|
jbe@81
|
86 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
|
87 int flags;
|
jbe@95
|
88 if (handle->nonblocking == nonblocking) return;
|
jbe@95
|
89 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@95
|
90 if (flags == -1) {
|
jbe@95
|
91 moonbr_io_errmsg();
|
jbe@96
|
92 close(handle->fd);
|
jbe@96
|
93 handle->fd = -1;
|
jbe@96
|
94 handle->closed = 1;
|
jbe@95
|
95 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@81
|
96 }
|
jbe@95
|
97 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@95
|
98 else flags &= ~O_NONBLOCK;
|
jbe@95
|
99 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
|
jbe@95
|
100 moonbr_io_errmsg();
|
jbe@96
|
101 close(handle->fd);
|
jbe@96
|
102 handle->fd = -1;
|
jbe@96
|
103 handle->closed = 1;
|
jbe@95
|
104 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@95
|
105 }
|
jbe@95
|
106 handle->nonblocking = nonblocking;
|
jbe@81
|
107 }
|
jbe@81
|
108
|
jbe@87
|
109 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
110 struct linger lingerval = { 0, };
|
jbe@107
|
111 if (!handle->issock) return;
|
jbe@87
|
112 if (timeout >= 0) {
|
jbe@87
|
113 lingerval.l_onoff = 1;
|
jbe@87
|
114 lingerval.l_linger = timeout;
|
jbe@87
|
115 }
|
jbe@87
|
116 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
|
117 moonbr_io_errmsg();
|
jbe@96
|
118 close(handle->fd);
|
jbe@96
|
119 handle->fd = -1;
|
jbe@96
|
120 handle->closed = 1;
|
jbe@95
|
121 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
122 }
|
jbe@87
|
123 }
|
jbe@87
|
124
|
jbe@133
|
125 static inline void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
126 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
127 if (
|
jbe@107
|
128 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
|
129 handle->nopush == nopush
|
jbe@107
|
130 ) return;
|
jbe@96
|
131 #if defined(TCP_NOPUSH)
|
jbe@96
|
132 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@104
|
133 #elif defined(TCP_CORK)
|
jbe@104
|
134 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
|
jbe@104
|
135 #endif
|
jbe@96
|
136 moonbr_io_errmsg();
|
jbe@96
|
137 close(handle->fd);
|
jbe@96
|
138 handle->fd = -1;
|
jbe@96
|
139 handle->closed = 1;
|
jbe@104
|
140 #if defined(TCP_NOPUSH)
|
jbe@96
|
141 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
|
jbe@96
|
142 #elif defined(TCP_CORK)
|
jbe@95
|
143 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
|
144 #endif
|
jbe@95
|
145 }
|
jbe@95
|
146 handle->nopush = nopush;
|
jbe@96
|
147 #else
|
jbe@96
|
148 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
149 #endif
|
jbe@95
|
150 }
|
jbe@95
|
151
|
jbe@86
|
152 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
153 moonbr_io_handle_t *handle;
|
jbe@85
|
154 lua_Integer maxread;
|
jbe@85
|
155 const char *terminatorstr;
|
jbe@85
|
156 size_t terminatorlen;
|
jbe@137
|
157 char terminator = 0; /* initialize to avoid compiler warning */
|
jbe@85
|
158 luaL_Buffer luabuf;
|
jbe@85
|
159 size_t luabufcnt = 0;
|
jbe@105
|
160 int remaining;
|
jbe@85
|
161 char *terminatorpos;
|
jbe@103
|
162 ssize_t bytesread;
|
jbe@85
|
163 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@85
|
164 maxread = luaL_optinteger(L, 2, 0);
|
jbe@85
|
165 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
166 if (terminatorlen) {
|
jbe@85
|
167 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
168 terminator = terminatorstr[0];
|
jbe@85
|
169 }
|
jbe@86
|
170 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
171 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
172 if (handle->readerr) {
|
jbe@85
|
173 lua_pushnil(L);
|
jbe@85
|
174 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
175 return 2;
|
jbe@85
|
176 }
|
jbe@143
|
177 if (handle->fd < 0) {
|
jbe@143
|
178 /* fake EOF to simulate shutdown */
|
jbe@143
|
179 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
180 else lua_pushinteger(L, 0);
|
jbe@143
|
181 lua_pushliteral(L, "eof");
|
jbe@143
|
182 return 2;
|
jbe@143
|
183 }
|
jbe@105
|
184 handle->readerr = 1;
|
jbe@85
|
185 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@86
|
186 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
187 while (1) {
|
jbe@105
|
188 remaining = -1;
|
jbe@142
|
189 terminatorpos = NULL;
|
jbe@105
|
190 if (
|
jbe@105
|
191 maxread > 0 &&
|
jbe@143
|
192 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
193 ) {
|
jbe@142
|
194 remaining = (size_t)maxread - luabufcnt;
|
jbe@142
|
195 terminatorpos = memchr(
|
jbe@142
|
196 handle->readbuf + handle->readbufout,
|
jbe@142
|
197 terminator,
|
jbe@142
|
198 remaining
|
jbe@142
|
199 );
|
jbe@85
|
200 } else if (terminatorlen) {
|
jbe@105
|
201 terminatorpos = memchr(
|
jbe@105
|
202 handle->readbuf + handle->readbufout,
|
jbe@105
|
203 terminator,
|
jbe@105
|
204 handle->readbufin - handle->readbufout
|
jbe@105
|
205 );
|
jbe@85
|
206 }
|
jbe@142
|
207 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
208 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
209 );
|
jbe@105
|
210 if (remaining >= 0) {
|
jbe@86
|
211 if (!drain) {
|
jbe@105
|
212 luaL_addlstring(
|
jbe@105
|
213 &luabuf,
|
jbe@105
|
214 handle->readbuf + handle->readbufout,
|
jbe@105
|
215 remaining
|
jbe@105
|
216 );
|
jbe@86
|
217 luaL_pushresult(&luabuf);
|
jbe@90
|
218 } else {
|
jbe@105
|
219 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
220 }
|
jbe@143
|
221 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
222 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
223 handle->readbufout += remaining;
|
jbe@105
|
224 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
225 handle->readbufin = 0;
|
jbe@143
|
226 handle->readbufout = 0;
|
jbe@105
|
227 }
|
jbe@104
|
228 handle->readerr = 0;
|
jbe@143
|
229 return 2;
|
jbe@85
|
230 }
|
jbe@105
|
231 if (!drain) luaL_addlstring(
|
jbe@105
|
232 &luabuf,
|
jbe@105
|
233 handle->readbuf + handle->readbufout,
|
jbe@105
|
234 handle->readbufin - handle->readbufout
|
jbe@105
|
235 );
|
jbe@105
|
236 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
237 handle->readbufout = 0;
|
jbe@85
|
238 do {
|
jbe@103
|
239 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
240 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
241 if (
|
jbe@105
|
242 bytesread == 0 || (
|
jbe@105
|
243 nonblocking &&
|
jbe@105
|
244 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
245 )
|
jbe@105
|
246 ) {
|
jbe@105
|
247 handle->readbufin = 0;
|
jbe@143
|
248 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
249 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
250 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
251 else lua_pushliteral(L, "block");
|
jbe@105
|
252 handle->readerr = 0;
|
jbe@143
|
253 return 2;
|
jbe@105
|
254 }
|
jbe@103
|
255 if (bytesread < 0) {
|
jbe@85
|
256 moonbr_io_errmsg();
|
jbe@85
|
257 lua_pushnil(L);
|
jbe@85
|
258 lua_pushstring(L, errmsg);
|
jbe@85
|
259 return 2;
|
jbe@85
|
260 }
|
jbe@105
|
261 handle->readbufin = bytesread;
|
jbe@86
|
262 }
|
jbe@85
|
263 }
|
jbe@85
|
264
|
jbe@85
|
265 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
266 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
267 }
|
jbe@85
|
268
|
jbe@85
|
269 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
270 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
271 }
|
jbe@86
|
272
|
jbe@86
|
273 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
274 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
275 }
|
jbe@86
|
276
|
jbe@86
|
277 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
278 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
279 }
|
jbe@85
|
280
|
jbe@140
|
281 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
282 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
283 #else
|
jbe@140
|
284 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
285 #endif
|
jbe@143
|
286 lua_Integer remaining;
|
jbe@143
|
287 size_t len;
|
jbe@140
|
288 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
289 int ctx = 0;
|
jbe@140
|
290 lua_getctx(L, &ctx);
|
jbe@140
|
291 #endif
|
jbe@140
|
292 remaining = lua_tointeger(L, 3);
|
jbe@140
|
293 while (1) {
|
jbe@140
|
294 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
295 lua_pushvalue(L, 1);
|
jbe@140
|
296 lua_pushvalue(L, 3);
|
jbe@140
|
297 lua_pushvalue(L, 4);
|
jbe@140
|
298 lua_call(L, 3, 2);
|
jbe@143
|
299 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
300 lua_insert(L, -2);
|
jbe@143
|
301 len = lua_rawlen(L, -1);
|
jbe@143
|
302 if (ctx == 0) {
|
jbe@143
|
303 lua_replace(L, 5);
|
jbe@143
|
304 ctx = 1;
|
jbe@143
|
305 } else if (ctx == 1) {
|
jbe@143
|
306 lua_pushvalue(L, 5);
|
jbe@143
|
307 lua_newtable(L);
|
jbe@143
|
308 lua_replace(L, 5);
|
jbe@143
|
309 lua_rawseti(L, 5, 2);
|
jbe@143
|
310 lua_rawseti(L, 5, 1);
|
jbe@143
|
311 ctx = 2;
|
jbe@140
|
312 } else {
|
jbe@143
|
313 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
314 }
|
jbe@144
|
315 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
316 lua_pop(L, 1);
|
jbe@144
|
317 if (remaining >= 0 && len) {
|
jbe@143
|
318 remaining -= len;
|
jbe@143
|
319 lua_pushinteger(L, remaining);
|
jbe@143
|
320 lua_replace(L, 3);
|
jbe@143
|
321 }
|
jbe@140
|
322 lua_pushvalue(L, 2);
|
jbe@140
|
323 lua_pushvalue(L, 1);
|
jbe@140
|
324 lua_pushliteral(L, "r");
|
jbe@140
|
325 lua_callk(L, 2, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
326 }
|
jbe@140
|
327 if (ctx == 1) {
|
jbe@140
|
328 lua_pushvalue(L, 5);
|
jbe@140
|
329 } else {
|
jbe@140
|
330 luaL_Buffer buf;
|
jbe@140
|
331 lua_Integer i, chunkcount;
|
jbe@140
|
332 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
333 luaL_buffinit(L, &buf);
|
jbe@140
|
334 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
335 lua_rawgeti(L, 5, i);
|
jbe@140
|
336 luaL_addvalue(&buf);
|
jbe@140
|
337 }
|
jbe@140
|
338 luaL_pushresult(&buf);
|
jbe@140
|
339 }
|
jbe@143
|
340 lua_pushvalue(L, -2);
|
jbe@143
|
341 return 2;
|
jbe@140
|
342 }
|
jbe@140
|
343
|
jbe@140
|
344 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
345 lua_settop(L, 4);
|
jbe@140
|
346 lua_pushnil(L);
|
jbe@140
|
347 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
348 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
349 #else
|
jbe@140
|
350 return moonbr_io_read_cont(L);
|
jbe@140
|
351 #endif
|
jbe@140
|
352 }
|
jbe@140
|
353
|
jbe@140
|
354 static int moonbr_io_read_yield(lua_State *L) {
|
jbe@140
|
355 int args;
|
jbe@140
|
356 lua_pushcfunction(L, moonbr_io_read_call);
|
jbe@140
|
357 lua_insert(L, 1);
|
jbe@140
|
358 args = lua_gettop(L);
|
jbe@140
|
359 lua_pushcfunction(L, moonbr_io_yield);
|
jbe@140
|
360 lua_insert(L, 3);
|
jbe@140
|
361 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall);
|
jbe@140
|
362 return lua_gettop(L);
|
jbe@140
|
363 }
|
jbe@140
|
364
|
jbe@144
|
365 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
366 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
367 #else
|
jbe@144
|
368 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
369 #endif
|
jbe@144
|
370 lua_Integer remaining, len;
|
jbe@144
|
371 size_t totallen = 0;
|
jbe@144
|
372 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
373 int ctx = 0;
|
jbe@144
|
374 lua_getctx(L, &ctx);
|
jbe@144
|
375 #endif
|
jbe@144
|
376 remaining = lua_tointeger(L, 3);
|
jbe@144
|
377 while (1) {
|
jbe@144
|
378 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
379 lua_pushvalue(L, 1);
|
jbe@144
|
380 lua_pushvalue(L, 3);
|
jbe@144
|
381 lua_pushvalue(L, 4);
|
jbe@144
|
382 lua_call(L, 3, 2);
|
jbe@144
|
383 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
384 lua_insert(L, -2);
|
jbe@144
|
385 len = lua_tointeger(L, -1);
|
jbe@144
|
386 lua_pop(L, 1);
|
jbe@144
|
387 totallen += len;
|
jbe@144
|
388 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
389 lua_pop(L, 1);
|
jbe@144
|
390 if (remaining >= 0 && len) {
|
jbe@144
|
391 remaining -= len;
|
jbe@144
|
392 lua_pushinteger(L, remaining);
|
jbe@144
|
393 lua_replace(L, 3);
|
jbe@144
|
394 }
|
jbe@144
|
395 lua_pushvalue(L, 2);
|
jbe@144
|
396 lua_pushvalue(L, 1);
|
jbe@144
|
397 lua_pushliteral(L, "r");
|
jbe@144
|
398 lua_callk(L, 2, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
399 }
|
jbe@144
|
400 lua_pushinteger(L, totallen);
|
jbe@144
|
401 lua_pushvalue(L, -2);
|
jbe@144
|
402 return 2;
|
jbe@144
|
403 }
|
jbe@144
|
404
|
jbe@144
|
405 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
406 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
407 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
408 #else
|
jbe@144
|
409 return moonbr_io_drain_cont(L);
|
jbe@144
|
410 #endif
|
jbe@144
|
411 }
|
jbe@144
|
412
|
jbe@144
|
413 static int moonbr_io_drain_yield(lua_State *L) {
|
jbe@144
|
414 int args;
|
jbe@144
|
415 lua_pushcfunction(L, moonbr_io_drain_call);
|
jbe@144
|
416 lua_insert(L, 1);
|
jbe@144
|
417 args = lua_gettop(L);
|
jbe@144
|
418 lua_pushcfunction(L, moonbr_io_yield);
|
jbe@144
|
419 lua_insert(L, 3);
|
jbe@144
|
420 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall);
|
jbe@144
|
421 return lua_gettop(L);
|
jbe@144
|
422 }
|
jbe@144
|
423
|
jbe@81
|
424 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
425 moonbr_io_handle_t *handle;
|
jbe@80
|
426 int i, top;
|
jbe@80
|
427 const char *str;
|
jbe@92
|
428 size_t strlen;
|
jbe@103
|
429 ssize_t written;
|
jbe@80
|
430 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
431 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
432 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
433 if (handle->writeerr) {
|
jbe@80
|
434 lua_pushnil(L);
|
jbe@80
|
435 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
436 return 2;
|
jbe@80
|
437 }
|
jbe@103
|
438 handle->writeerr = 1;
|
jbe@81
|
439 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
440 top = lua_gettop(L);
|
jbe@81
|
441 lua_getuservalue(L, 1);
|
jbe@103
|
442 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
443 for (i=2; i<=top; i++) {
|
jbe@84
|
444 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
445 lua_pushvalue(L, i);
|
jbe@84
|
446 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
447 handle->writeleft += strlen;
|
jbe@81
|
448 }
|
jbe@132
|
449 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
450 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
451 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
452 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
453 while (handle->writeqoff < strlen) {
|
jbe@103
|
454 if (
|
jbe@132
|
455 strlen - handle->writeqoff <
|
jbe@103
|
456 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
457 ) {
|
jbe@103
|
458 memcpy(
|
jbe@103
|
459 handle->writebuf + handle->writebufin,
|
jbe@103
|
460 str + handle->writeqoff,
|
jbe@103
|
461 strlen - handle->writeqoff
|
jbe@103
|
462 );
|
jbe@103
|
463 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
464 break;
|
jbe@80
|
465 } else {
|
jbe@103
|
466 memcpy(
|
jbe@103
|
467 handle->writebuf + handle->writebufin,
|
jbe@103
|
468 str + handle->writeqoff,
|
jbe@103
|
469 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
470 );
|
jbe@103
|
471 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@103
|
472 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@133
|
473 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
474 written = write(
|
jbe@103
|
475 handle->fd,
|
jbe@103
|
476 handle->writebuf + handle->writebufout,
|
jbe@103
|
477 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
478 );
|
jbe@103
|
479 if (written < 0) {
|
jbe@81
|
480 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
481 goto moonbr_io_write_impl_block;
|
jbe@81
|
482 } else if (errno != EINTR) {
|
jbe@80
|
483 moonbr_io_errmsg();
|
jbe@80
|
484 lua_pushnil(L);
|
jbe@80
|
485 lua_pushstring(L, errmsg);
|
jbe@80
|
486 return 2;
|
jbe@80
|
487 }
|
jbe@103
|
488 } else {
|
jbe@103
|
489 handle->writebufout += written;
|
jbe@103
|
490 handle->writeleft -= written;
|
jbe@133
|
491 if (handle->flushedleft) {
|
jbe@133
|
492 if (written >= handle->flushedleft) {
|
jbe@133
|
493 handle->flushedleft = 0;
|
jbe@133
|
494 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
495 } else {
|
jbe@133
|
496 handle->flushedleft -= written;
|
jbe@133
|
497 }
|
jbe@133
|
498 }
|
jbe@80
|
499 }
|
jbe@80
|
500 }
|
jbe@103
|
501 handle->writebufin = 0;
|
jbe@103
|
502 handle->writebufout = 0;
|
jbe@80
|
503 }
|
jbe@80
|
504 }
|
jbe@81
|
505 handle->writeqoff = 0;
|
jbe@81
|
506 lua_pop(L, 1);
|
jbe@81
|
507 lua_pushnil(L);
|
jbe@83
|
508 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
509 }
|
jbe@132
|
510 while (handle->flushedleft) {
|
jbe@133
|
511 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@132
|
512 written = write(
|
jbe@132
|
513 handle->fd,
|
jbe@132
|
514 handle->writebuf + handle->writebufout,
|
jbe@132
|
515 handle->writebufin - handle->writebufout
|
jbe@132
|
516 );
|
jbe@132
|
517 if (written < 0) {
|
jbe@132
|
518 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
519 goto moonbr_io_write_impl_block;
|
jbe@132
|
520 } else if (errno != EINTR) {
|
jbe@132
|
521 moonbr_io_errmsg();
|
jbe@132
|
522 lua_pushnil(L);
|
jbe@132
|
523 lua_pushstring(L, errmsg);
|
jbe@132
|
524 return 2;
|
jbe@81
|
525 }
|
jbe@132
|
526 } else {
|
jbe@132
|
527 handle->writebufout += written;
|
jbe@132
|
528 handle->writeleft -= written;
|
jbe@133
|
529 if (handle->flushedleft) {
|
jbe@133
|
530 if (written >= handle->flushedleft) {
|
jbe@133
|
531 handle->flushedleft = 0;
|
jbe@133
|
532 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
533 } else {
|
jbe@133
|
534 handle->flushedleft -= written;
|
jbe@133
|
535 }
|
jbe@133
|
536 }
|
jbe@81
|
537 }
|
jbe@132
|
538 }
|
jbe@132
|
539 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
540 handle->writebufin = 0;
|
jbe@103
|
541 handle->writebufout = 0;
|
jbe@81
|
542 }
|
jbe@103
|
543 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
544 else lua_pushvalue(L, 1);
|
jbe@103
|
545 handle->writeerr = 0;
|
jbe@80
|
546 return 1;
|
jbe@81
|
547 moonbr_io_write_impl_block:
|
jbe@91
|
548 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
549 handle->writeerr = 0;
|
jbe@81
|
550 return 1;
|
jbe@81
|
551 }
|
jbe@81
|
552
|
jbe@81
|
553 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
554 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
555 }
|
jbe@81
|
556
|
jbe@81
|
557 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
558 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
559 }
|
jbe@80
|
560
|
jbe@80
|
561 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
562 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
563 }
|
jbe@81
|
564
|
jbe@81
|
565 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
566 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
567 }
|
jbe@80
|
568
|
jbe@88
|
569 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
570 moonbr_io_handle_t *handle;
|
jbe@88
|
571 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
572 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
573 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
574 if (handle->writeleft) {
|
jbe@94
|
575 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
576 lua_pushvalue(L, 1);
|
jbe@116
|
577 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
578 handle->finished = 1;
|
jbe@116
|
579 lua_error(L);
|
jbe@116
|
580 }
|
jbe@94
|
581 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
582 handle->finished = 1;
|
jbe@94
|
583 return 2;
|
jbe@88
|
584 }
|
jbe@94
|
585 }
|
jbe@94
|
586 handle->finished = 1;
|
jbe@107
|
587 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@88
|
588 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
589 moonbr_io_errmsg();
|
jbe@88
|
590 lua_pushnil(L);
|
jbe@88
|
591 lua_pushstring(L, errmsg);
|
jbe@88
|
592 return 2;
|
jbe@88
|
593 }
|
jbe@94
|
594 } else {
|
jbe@94
|
595 if (close(handle->fd)) {
|
jbe@94
|
596 moonbr_io_errmsg();
|
jbe@94
|
597 handle->fd = -1;
|
jbe@94
|
598 lua_pushnil(L);
|
jbe@94
|
599 lua_pushstring(L, errmsg);
|
jbe@94
|
600 return 2;
|
jbe@94
|
601 }
|
jbe@94
|
602 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
603 }
|
jbe@88
|
604 lua_pushboolean(L, 1);
|
jbe@88
|
605 return 1;
|
jbe@88
|
606 }
|
jbe@88
|
607
|
jbe@94
|
608 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
609 moonbr_io_handle_t *handle;
|
jbe@83
|
610 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
611 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
612 if (!reset) {
|
jbe@87
|
613 if (handle->writeleft) {
|
jbe@87
|
614 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
615 lua_pushvalue(L, 1);
|
jbe@116
|
616 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
617 handle->closed = 1;
|
jbe@116
|
618 close(handle->fd);
|
jbe@116
|
619 handle->fd = -1;
|
jbe@116
|
620 lua_error(L);
|
jbe@116
|
621 }
|
jbe@129
|
622 handle->closed = 1;
|
jbe@87
|
623 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
624 close(handle->fd);
|
jbe@87
|
625 handle->fd = -1;
|
jbe@87
|
626 return 2;
|
jbe@87
|
627 }
|
jbe@129
|
628 } else {
|
jbe@129
|
629 handle->closed = 1;
|
jbe@129
|
630 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
631 }
|
jbe@129
|
632 } else {
|
jbe@129
|
633 handle->closed = 1;
|
jbe@83
|
634 }
|
jbe@94
|
635 if (handle->fd >= 0) {
|
jbe@94
|
636 if (close(handle->fd)) {
|
jbe@94
|
637 moonbr_io_errmsg();
|
jbe@94
|
638 handle->fd = -1;
|
jbe@94
|
639 lua_pushnil(L);
|
jbe@94
|
640 lua_pushstring(L, errmsg);
|
jbe@94
|
641 return 2;
|
jbe@94
|
642 }
|
jbe@104
|
643 handle->fd = -1;
|
jbe@83
|
644 }
|
jbe@83
|
645 lua_pushboolean(L, 1);
|
jbe@83
|
646 return 1;
|
jbe@84
|
647
|
jbe@83
|
648 }
|
jbe@83
|
649
|
jbe@94
|
650 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
651 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
652 }
|
jbe@94
|
653
|
jbe@84
|
654 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
655 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
656 }
|
jbe@84
|
657
|
jbe@108
|
658 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
659 moonbr_io_handle_t *handle;
|
jbe@88
|
660 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
661 if (handle->fd >= 0) {
|
jbe@88
|
662 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
663 lua_pushvalue(L, 1);
|
jbe@88
|
664 lua_pushinteger(L, 0);
|
jbe@88
|
665 lua_call(L, 2, 0);
|
jbe@88
|
666 }
|
jbe@88
|
667 return 0;
|
jbe@88
|
668 }
|
jbe@88
|
669
|
jbe@100
|
670 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
671 moonbr_io_handle_t *handle;
|
jbe@88
|
672 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
673 if (!handle->closed) {
|
jbe@100
|
674 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
675 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
676 lua_call(L, 1, 0);
|
jbe@88
|
677 }
|
jbe@88
|
678 }
|
jbe@88
|
679
|
jbe@107
|
680 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@79
|
681 moonbr_io_handle_t *handle;
|
jbe@107
|
682 struct sockaddr addr;
|
jbe@107
|
683 socklen_t addrlen;
|
jbe@79
|
684 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@79
|
685 handle->fd = fd;
|
jbe@107
|
686 addrlen = sizeof(addr);
|
jbe@107
|
687 if (getsockname(fd, &addr, &addrlen)) {
|
jbe@107
|
688 if (errno != ENOTSOCK) {
|
jbe@107
|
689 moonbr_io_errmsg();
|
jbe@107
|
690 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
691 }
|
jbe@107
|
692 handle->issock = 0;
|
jbe@107
|
693 } else {
|
jbe@107
|
694 handle->issock = 1;
|
jbe@107
|
695 handle->addrfam = addr.sa_family;
|
jbe@107
|
696 }
|
jbe@94
|
697 handle->finished = 0;
|
jbe@94
|
698 handle->closed = 0;
|
jbe@81
|
699 handle->nonblocking = -1;
|
jbe@95
|
700 handle->nopush = -1;
|
jbe@85
|
701 handle->readerr = 0;
|
jbe@105
|
702 handle->readbufin = 0;
|
jbe@105
|
703 handle->readbufout = 0;
|
jbe@81
|
704 handle->writeerr = 0;
|
jbe@81
|
705 handle->writeleft = 0;
|
jbe@132
|
706 handle->flushedleft = 0;
|
jbe@83
|
707 handle->writeqin = 0;
|
jbe@83
|
708 handle->writeqout = 0;
|
jbe@81
|
709 handle->writeqoff = 0;
|
jbe@103
|
710 handle->writebufin = 0;
|
jbe@103
|
711 handle->writebufout = 0;
|
jbe@87
|
712 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@79
|
713 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
714 lua_setmetatable(L, -2);
|
jbe@79
|
715 lua_newtable(L); // uservalue
|
jbe@81
|
716 lua_newtable(L);
|
jbe@103
|
717 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
718 lua_newtable(L); // public
|
jbe@107
|
719 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
720 struct sockaddr_in6 addr_in6;
|
jbe@107
|
721 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
722 const char *addrstr;
|
jbe@107
|
723 addrlen = sizeof(addr_in6);
|
jbe@107
|
724 if (getsockname(fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
725 moonbr_io_errmsg();
|
jbe@107
|
726 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
727 }
|
jbe@107
|
728 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
729 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
730 }
|
jbe@107
|
731 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
732 if (!addrstr) {
|
jbe@107
|
733 moonbr_io_errmsg();
|
jbe@107
|
734 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
735 } else {
|
jbe@107
|
736 lua_pushstring(L, addrstr);
|
jbe@107
|
737 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
738 }
|
jbe@107
|
739 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
740 lua_setfield(L, -2, "local_tcpport");
|
jbe@107
|
741 if (getpeername(fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
742 moonbr_io_errmsg();
|
jbe@107
|
743 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
744 }
|
jbe@107
|
745 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
746 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
747 }
|
jbe@107
|
748 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
749 if (!addrstr) {
|
jbe@107
|
750 moonbr_io_errmsg();
|
jbe@107
|
751 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
752 } else {
|
jbe@107
|
753 lua_pushstring(L, addrstr);
|
jbe@107
|
754 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
755 }
|
jbe@107
|
756 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
757 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
758 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
759 struct sockaddr_in addr_in;
|
jbe@107
|
760 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
761 const char *addrstr;
|
jbe@107
|
762 addrlen = sizeof(addr_in);
|
jbe@107
|
763 if (getsockname(fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
764 moonbr_io_errmsg();
|
jbe@107
|
765 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
766 }
|
jbe@107
|
767 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
768 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
769 }
|
jbe@107
|
770 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
771 if (!addrstr) {
|
jbe@107
|
772 moonbr_io_errmsg();
|
jbe@107
|
773 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
774 } else {
|
jbe@107
|
775 lua_pushstring(L, addrstr);
|
jbe@107
|
776 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
777 }
|
jbe@107
|
778 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
779 lua_setfield(L, -2, "local_tcpport");
|
jbe@107
|
780 if (getpeername(fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
781 moonbr_io_errmsg();
|
jbe@107
|
782 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
783 }
|
jbe@107
|
784 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
785 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
786 }
|
jbe@107
|
787 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
788 if (!addrstr) {
|
jbe@107
|
789 moonbr_io_errmsg();
|
jbe@107
|
790 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
791 } else {
|
jbe@107
|
792 lua_pushstring(L, addrstr);
|
jbe@107
|
793 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
794 }
|
jbe@107
|
795 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
796 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
797 }
|
jbe@79
|
798 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
799 lua_setmetatable(L, -2);
|
jbe@79
|
800 lua_setfield(L, -2, "public");
|
jbe@79
|
801 lua_setuservalue(L, -2);
|
jbe@79
|
802 }
|
jbe@79
|
803
|
jbe@79
|
804 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
805 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
806 lua_getuservalue(L, 1);
|
jbe@79
|
807 lua_getfield(L, -1, "public");
|
jbe@79
|
808 lua_pushvalue(L, 2);
|
jbe@79
|
809 lua_gettable(L, -2);
|
jbe@79
|
810 return 1;
|
jbe@79
|
811 }
|
jbe@79
|
812
|
jbe@79
|
813 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
814 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
815 lua_getuservalue(L, 1);
|
jbe@79
|
816 lua_getfield(L, -1, "public");
|
jbe@79
|
817 lua_pushvalue(L, 2);
|
jbe@79
|
818 lua_pushvalue(L, 3);
|
jbe@79
|
819 lua_settable(L, -3);
|
jbe@79
|
820 return 0;
|
jbe@79
|
821 }
|
jbe@79
|
822
|
jbe@111
|
823 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
824 const char *path;
|
jbe@111
|
825 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
826 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
827 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
828 ) - 1; /* one byte for termination */
|
jbe@111
|
829 int sock;
|
jbe@111
|
830 path = luaL_checkstring(L, 1);
|
jbe@111
|
831 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
832 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
833 sock = socket(
|
jbe@111
|
834 PF_LOCAL,
|
jbe@111
|
835 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
836 0
|
jbe@111
|
837 );
|
jbe@111
|
838 if (sock < 0) {
|
jbe@111
|
839 moonbr_io_errmsg();
|
jbe@111
|
840 lua_pushnil(L);
|
jbe@111
|
841 lua_pushstring(L, errmsg);
|
jbe@111
|
842 return 2;
|
jbe@111
|
843 }
|
jbe@111
|
844 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
845 if (!nonblocking && errno == EINTR) {
|
jbe@111
|
846 moonbr_io_errmsg();
|
jbe@111
|
847 close(sock);
|
jbe@111
|
848 lua_pushnil(L);
|
jbe@111
|
849 lua_pushstring(L, errmsg);
|
jbe@111
|
850 return 2;
|
jbe@111
|
851 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@111
|
852 moonbr_io_errmsg();
|
jbe@111
|
853 lua_pushnil(L);
|
jbe@111
|
854 lua_pushstring(L, errmsg);
|
jbe@111
|
855 return 2;
|
jbe@111
|
856 }
|
jbe@111
|
857 }
|
jbe@111
|
858 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
859 return 1;
|
jbe@111
|
860 }
|
jbe@111
|
861
|
jbe@111
|
862 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
863 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
864 }
|
jbe@111
|
865
|
jbe@111
|
866 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
867 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
868 }
|
jbe@111
|
869
|
jbe@99
|
870 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
871 const char *host, *port;
|
jbe@98
|
872 struct addrinfo hints = { 0, };
|
jbe@98
|
873 struct addrinfo *res, *addrinfo;
|
jbe@98
|
874 int errcode;
|
jbe@98
|
875 int sock;
|
jbe@98
|
876 host = luaL_checkstring(L, 1);
|
jbe@98
|
877 port = luaL_checkstring(L, 2);
|
jbe@98
|
878 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
879 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
880 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
881 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
882 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
883 if (errcode) {
|
jbe@102
|
884 freeaddrinfo(res);
|
jbe@98
|
885 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
886 moonbr_io_errmsg();
|
jbe@98
|
887 lua_pushnil(L);
|
jbe@98
|
888 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
889 } else {
|
jbe@98
|
890 lua_pushnil(L);
|
jbe@98
|
891 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
892 }
|
jbe@98
|
893 return 2;
|
jbe@98
|
894 }
|
jbe@98
|
895 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
896 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
897 }
|
jbe@98
|
898 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
899 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
900 }
|
jbe@98
|
901 addrinfo = res;
|
jbe@98
|
902 moonbr_io_tcpconnect_found:
|
jbe@99
|
903 sock = socket(
|
jbe@134
|
904 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
905 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
906 addrinfo->ai_protocol
|
jbe@99
|
907 );
|
jbe@98
|
908 if (sock < 0) {
|
jbe@98
|
909 moonbr_io_errmsg();
|
jbe@108
|
910 freeaddrinfo(res);
|
jbe@98
|
911 lua_pushnil(L);
|
jbe@98
|
912 lua_pushstring(L, errmsg);
|
jbe@108
|
913 return 2;
|
jbe@98
|
914 }
|
jbe@98
|
915 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
916 freeaddrinfo(res);
|
jbe@99
|
917 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
918 moonbr_io_errmsg();
|
jbe@99
|
919 close(sock);
|
jbe@99
|
920 lua_pushnil(L);
|
jbe@99
|
921 lua_pushstring(L, errmsg);
|
jbe@99
|
922 return 2;
|
jbe@99
|
923 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
924 moonbr_io_errmsg();
|
jbe@99
|
925 lua_pushnil(L);
|
jbe@99
|
926 lua_pushstring(L, errmsg);
|
jbe@99
|
927 return 2;
|
jbe@99
|
928 }
|
jbe@108
|
929 } else {
|
jbe@108
|
930 freeaddrinfo(res);
|
jbe@98
|
931 }
|
jbe@107
|
932 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
933 return 1;
|
jbe@98
|
934 }
|
jbe@98
|
935
|
jbe@99
|
936 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
937 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
938 }
|
jbe@99
|
939
|
jbe@99
|
940 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
941 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
942 }
|
jbe@99
|
943
|
jbe@112
|
944 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
945 moonbr_io_listener_t *listener;
|
jbe@112
|
946 const char *path;
|
jbe@118
|
947 struct stat sb;
|
jbe@112
|
948 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
949 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
950 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
951 ) - 1; /* one byte for termination */
|
jbe@112
|
952 int sock;
|
jbe@112
|
953 path = luaL_checkstring(L, 1);
|
jbe@112
|
954 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
955 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
956 if (stat(path, &sb) == 0) {
|
jbe@118
|
957 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
958 }
|
jbe@112
|
959 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
960 listener->fd = -1;
|
jbe@112
|
961 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
962 sock = socket(
|
jbe@112
|
963 PF_LOCAL,
|
jbe@112
|
964 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
965 0
|
jbe@112
|
966 );
|
jbe@112
|
967 if (sock < 0) {
|
jbe@112
|
968 moonbr_io_errmsg();
|
jbe@112
|
969 lua_pushnil(L);
|
jbe@112
|
970 lua_pushstring(L, errmsg);
|
jbe@112
|
971 return 2;
|
jbe@112
|
972 }
|
jbe@112
|
973 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@112
|
974 moonbr_io_errmsg();
|
jbe@112
|
975 close(sock);
|
jbe@112
|
976 lua_pushnil(L);
|
jbe@112
|
977 lua_pushstring(L, errmsg);
|
jbe@112
|
978 return 2;
|
jbe@112
|
979 }
|
jbe@112
|
980 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@112
|
981 moonbr_io_errmsg();
|
jbe@112
|
982 close(sock);
|
jbe@112
|
983 lua_pushnil(L);
|
jbe@112
|
984 lua_pushstring(L, errmsg);
|
jbe@112
|
985 return 2;
|
jbe@112
|
986 }
|
jbe@112
|
987 listener->fd = sock;
|
jbe@118
|
988 listener->addrfam = AF_LOCAL;
|
jbe@112
|
989 listener->nonblocking = -1;
|
jbe@112
|
990 return 1;
|
jbe@112
|
991 }
|
jbe@112
|
992
|
jbe@108
|
993 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
994 moonbr_io_listener_t *listener;
|
jbe@108
|
995 const char *host, *port;
|
jbe@108
|
996 struct addrinfo hints = { 0, };
|
jbe@108
|
997 struct addrinfo *res, *addrinfo;
|
jbe@108
|
998 int errcode;
|
jbe@108
|
999 int sock;
|
jbe@108
|
1000 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1001 port = luaL_checkstring(L, 2);
|
jbe@108
|
1002 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1003 listener->fd = -1;
|
jbe@108
|
1004 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1005 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1006 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1007 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1008 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1009 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1010 if (errcode) {
|
jbe@108
|
1011 freeaddrinfo(res);
|
jbe@108
|
1012 if (errcode == EAI_SYSTEM) {
|
jbe@108
|
1013 moonbr_io_errmsg();
|
jbe@108
|
1014 lua_pushnil(L);
|
jbe@108
|
1015 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1016 } else {
|
jbe@108
|
1017 lua_pushnil(L);
|
jbe@108
|
1018 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1019 }
|
jbe@108
|
1020 return 2;
|
jbe@108
|
1021 }
|
jbe@108
|
1022 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1023 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1024 }
|
jbe@108
|
1025 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1026 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1027 }
|
jbe@108
|
1028 addrinfo = res;
|
jbe@108
|
1029 moonbr_io_tcpconnect_found:
|
jbe@118
|
1030 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1031 sock = socket(
|
jbe@134
|
1032 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1033 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1034 addrinfo->ai_protocol
|
jbe@108
|
1035 );
|
jbe@108
|
1036 if (sock < 0) {
|
jbe@108
|
1037 moonbr_io_errmsg();
|
jbe@108
|
1038 freeaddrinfo(res);
|
jbe@108
|
1039 lua_pushnil(L);
|
jbe@108
|
1040 lua_pushstring(L, errmsg);
|
jbe@108
|
1041 return 2;
|
jbe@108
|
1042 }
|
jbe@120
|
1043 {
|
jbe@120
|
1044 static const int reuseval = 1;
|
jbe@120
|
1045 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@120
|
1046 moonbr_io_errmsg();
|
jbe@120
|
1047 freeaddrinfo(res);
|
jbe@120
|
1048 close(sock);
|
jbe@120
|
1049 lua_pushnil(L);
|
jbe@120
|
1050 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1051 return 2;
|
jbe@120
|
1052 }
|
jbe@120
|
1053 }
|
jbe@108
|
1054 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1055 moonbr_io_errmsg();
|
jbe@108
|
1056 freeaddrinfo(res);
|
jbe@108
|
1057 close(sock);
|
jbe@108
|
1058 lua_pushnil(L);
|
jbe@108
|
1059 lua_pushstring(L, errmsg);
|
jbe@108
|
1060 return 2;
|
jbe@108
|
1061 }
|
jbe@108
|
1062 freeaddrinfo(res);
|
jbe@108
|
1063 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@108
|
1064 moonbr_io_errmsg();
|
jbe@108
|
1065 close(sock);
|
jbe@108
|
1066 lua_pushnil(L);
|
jbe@108
|
1067 lua_pushstring(L, errmsg);
|
jbe@108
|
1068 return 2;
|
jbe@108
|
1069 }
|
jbe@108
|
1070 listener->fd = sock;
|
jbe@108
|
1071 listener->nonblocking = -1;
|
jbe@108
|
1072 return 1;
|
jbe@108
|
1073 }
|
jbe@108
|
1074
|
jbe@108
|
1075 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1076 moonbr_io_listener_t *listener;
|
jbe@108
|
1077 int fd;
|
jbe@108
|
1078 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1079 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1080 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1081 int flags;
|
jbe@108
|
1082 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1083 if (flags == -1) {
|
jbe@108
|
1084 moonbr_io_errmsg();
|
jbe@108
|
1085 close(listener->fd);
|
jbe@108
|
1086 listener->fd = -1;
|
jbe@108
|
1087 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1088 }
|
jbe@108
|
1089 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1090 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1091 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@108
|
1092 moonbr_io_errmsg();
|
jbe@108
|
1093 close(listener->fd);
|
jbe@108
|
1094 listener->fd = -1;
|
jbe@108
|
1095 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1096 }
|
jbe@108
|
1097 listener->nonblocking = nonblocking;
|
jbe@108
|
1098 }
|
jbe@108
|
1099 while (1) {
|
jbe@108
|
1100 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@108
|
1101 if (fd < 0) {
|
jbe@108
|
1102 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1103 lua_pushboolean(L, 0);
|
jbe@108
|
1104 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1105 return 2;
|
jbe@108
|
1106 } else if (errno != EINTR) {
|
jbe@108
|
1107 moonbr_io_errmsg();
|
jbe@108
|
1108 lua_pushnil(L);
|
jbe@108
|
1109 lua_pushstring(L, errmsg);
|
jbe@108
|
1110 return 2;
|
jbe@108
|
1111 }
|
jbe@108
|
1112 } else {
|
jbe@108
|
1113 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1114 return 1;
|
jbe@108
|
1115 }
|
jbe@108
|
1116 }
|
jbe@108
|
1117 }
|
jbe@108
|
1118
|
jbe@108
|
1119 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1120 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1121 }
|
jbe@108
|
1122
|
jbe@108
|
1123 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1124 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1125 }
|
jbe@108
|
1126
|
jbe@108
|
1127 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1128 moonbr_io_listener_t *listener;
|
jbe@118
|
1129 struct sockaddr_un addr;
|
jbe@118
|
1130 socklen_t addrlen;
|
jbe@118
|
1131 struct stat sb;
|
jbe@108
|
1132 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1133 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1134 addrlen = sizeof(addr);
|
jbe@118
|
1135 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1136 if (close(listener->fd)) {
|
jbe@108
|
1137 moonbr_io_errmsg();
|
jbe@108
|
1138 listener->fd = -1;
|
jbe@118
|
1139 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1140 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1141 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1142 }
|
jbe@118
|
1143 }
|
jbe@108
|
1144 lua_pushnil(L);
|
jbe@108
|
1145 lua_pushstring(L, errmsg);
|
jbe@108
|
1146 return 2;
|
jbe@108
|
1147 }
|
jbe@108
|
1148 listener->fd = -1;
|
jbe@118
|
1149 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1150 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1151 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1152 }
|
jbe@118
|
1153 }
|
jbe@108
|
1154 lua_pushboolean(L, 1);
|
jbe@108
|
1155 return 1;
|
jbe@108
|
1156 }
|
jbe@108
|
1157
|
jbe@108
|
1158 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1159 moonbr_io_listener_t *listener;
|
jbe@108
|
1160 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1161 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1162 listener->fd = -1;
|
jbe@108
|
1163 return 0;
|
jbe@108
|
1164 }
|
jbe@108
|
1165
|
jbe@106
|
1166 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1167 moonbr_io_handle_t *handle;
|
jbe@108
|
1168 moonbr_io_listener_t *listener;
|
jbe@106
|
1169 int fd, isnum;
|
jbe@106
|
1170 int nfds = 0;
|
jbe@106
|
1171 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
1172 struct timeval timeout = {0, };
|
jbe@106
|
1173 int status;
|
jbe@106
|
1174 FD_ZERO(&readfds);
|
jbe@106
|
1175 FD_ZERO(&writefds);
|
jbe@106
|
1176 FD_ZERO(&exceptfds);
|
jbe@106
|
1177 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1178 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1179 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1180 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1181 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1182 if (handle) {
|
jbe@109
|
1183 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1184 fd = handle->fd;
|
jbe@122
|
1185 if (
|
jbe@122
|
1186 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1187 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1188 ) {
|
jbe@109
|
1189 lua_pushboolean(L, 1);
|
jbe@109
|
1190 return 1;
|
jbe@109
|
1191 }
|
jbe@106
|
1192 } else {
|
jbe@108
|
1193 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1194 if (listener) {
|
jbe@108
|
1195 fd = listener->fd;
|
jbe@108
|
1196 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1197 } else {
|
jbe@108
|
1198 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
1199 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
1200 }
|
jbe@106
|
1201 }
|
jbe@138
|
1202 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1203 FD_SET(fd, &readfds);
|
jbe@106
|
1204 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1205 }
|
jbe@106
|
1206 }
|
jbe@106
|
1207 }
|
jbe@106
|
1208 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
1209 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1210 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1211 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1212 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1213 if (handle) {
|
jbe@109
|
1214 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1215 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1216 fd = handle->fd;
|
jbe@106
|
1217 } else {
|
jbe@108
|
1218 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1219 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1220 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1221 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1222 }
|
jbe@138
|
1223 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1224 FD_SET(fd, &writefds);
|
jbe@106
|
1225 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1226 }
|
jbe@106
|
1227 }
|
jbe@106
|
1228 }
|
jbe@106
|
1229 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1230 lua_Number n;
|
jbe@106
|
1231 n = lua_tonumberx(L, 3, &isnum);
|
jbe@106
|
1232 if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
1233 timeout.tv_sec = n;
|
jbe@106
|
1234 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
1235 } else {
|
jbe@106
|
1236 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1237 }
|
jbe@106
|
1238 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
1239 } else {
|
jbe@106
|
1240 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
1241 }
|
jbe@106
|
1242 if (status == -1) {
|
jbe@106
|
1243 if (errno == EINTR) {
|
jbe@106
|
1244 lua_pushboolean(L, 0);
|
jbe@106
|
1245 lua_pushliteral(L, "Signal received while polling file descriptors");
|
jbe@106
|
1246 return 2;
|
jbe@106
|
1247 } else {
|
jbe@106
|
1248 moonbr_io_errmsg();
|
jbe@106
|
1249 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
1250 }
|
jbe@106
|
1251 } else if (status == 0) {
|
jbe@106
|
1252 lua_pushboolean(L, 0);
|
jbe@106
|
1253 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
1254 return 2;
|
jbe@106
|
1255 } else {
|
jbe@106
|
1256 lua_pushboolean(L, 1);
|
jbe@106
|
1257 return 1;
|
jbe@106
|
1258 }
|
jbe@106
|
1259 }
|
jbe@106
|
1260
|
jbe@115
|
1261 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1262 lua_Number sub;
|
jbe@115
|
1263 struct timespec tp;
|
jbe@115
|
1264 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1265 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1266 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1267 }
|
jbe@115
|
1268 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1269 return 1;
|
jbe@115
|
1270 }
|
jbe@115
|
1271
|
jbe@79
|
1272 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
1273 {"read", moonbr_io_read},
|
jbe@85
|
1274 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
1275 {"read_call", moonbr_io_read_call},
|
jbe@140
|
1276 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
1277 {"drain", moonbr_io_drain},
|
jbe@86
|
1278 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
1279 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
1280 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
1281 {"write", moonbr_io_write},
|
jbe@81
|
1282 {"write_nb", moonbr_io_write_nb},
|
jbe@80
|
1283 {"flush", moonbr_io_flush},
|
jbe@81
|
1284 {"flush_nb", moonbr_io_flush_nb},
|
jbe@88
|
1285 {"finish", moonbr_io_finish},
|
jbe@87
|
1286 {"close", moonbr_io_close},
|
jbe@85
|
1287 {"reset", moonbr_io_reset},
|
jbe@79
|
1288 {NULL, NULL}
|
jbe@79
|
1289 };
|
jbe@79
|
1290
|
jbe@79
|
1291 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1292 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1293 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1294 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1295 {NULL, NULL}
|
jbe@108
|
1296 };
|
jbe@108
|
1297
|
jbe@108
|
1298 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1299 {"accept", moonbr_io_accept},
|
jbe@108
|
1300 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1301 {"close", moonbr_io_unlisten},
|
jbe@108
|
1302 {NULL, NULL}
|
jbe@108
|
1303 };
|
jbe@108
|
1304
|
jbe@108
|
1305 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1306 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1307 {NULL, NULL}
|
jbe@79
|
1308 };
|
jbe@79
|
1309
|
jbe@79
|
1310 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1311 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1312 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1313 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1314 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
1315 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
1316 {"tcplisten", moonbr_io_tcplisten},
|
jbe@106
|
1317 {"poll", moonbr_io_poll},
|
jbe@115
|
1318 {"timeref", moonbr_io_timeref},
|
jbe@79
|
1319 {NULL, NULL}
|
jbe@79
|
1320 };
|
jbe@79
|
1321
|
jbe@79
|
1322 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
1323
|
jbe@113
|
1324 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@113
|
1325
|
jbe@80
|
1326 lua_newtable(L); // module
|
jbe@80
|
1327
|
jbe@79
|
1328 lua_newtable(L); // public metatable
|
jbe@79
|
1329 lua_newtable(L); // handle methods
|
jbe@79
|
1330 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
1331 lua_pushvalue(L, -1);
|
jbe@108
|
1332 lua_setfield(L, -4, "prototype_handle");
|
jbe@79
|
1333 lua_setfield(L, -2, "__index");
|
jbe@79
|
1334 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1335
|
jbe@79
|
1336 lua_newtable(L); // handle metatable
|
jbe@79
|
1337 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@79
|
1338 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
1339
|
jbe@108
|
1340 lua_newtable(L); // listener metatable
|
jbe@108
|
1341 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
1342 lua_newtable(L); // listener methods
|
jbe@108
|
1343 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
1344 lua_pushvalue(L, -1);
|
jbe@108
|
1345 lua_setfield(L, -4, "prototype_listener");
|
jbe@108
|
1346 lua_setfield(L, -2, "__index");
|
jbe@108
|
1347 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1348
|
jbe@79
|
1349 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
1350 return 1;
|
jbe@79
|
1351
|
jbe@79
|
1352 }
|
jbe@79
|
1353
|