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