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>
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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@149
|
26 #include <assert.h>
|
jbe@149
|
27
|
jbe@80
|
28 #define MOONBR_IO_MAXSTRERRORLEN 80
|
jbe@85
|
29 #define MOONBR_IO_READBUFLEN 4096
|
jbe@80
|
30 #define MOONBR_IO_WRITEBUFLEN 4096
|
jbe@80
|
31
|
jbe@108
|
32 #define MOONBR_IO_LISTEN_BACKLOG 1024
|
jbe@108
|
33
|
jbe@80
|
34 #define moonbr_io_errmsg() \
|
jbe@80
|
35 char errmsg[MOONBR_IO_MAXSTRERRORLEN]; \
|
jbe@80
|
36 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
|
jbe@80
|
37
|
jbe@79
|
38 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
|
jbe@79
|
39 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
|
jbe@108
|
40 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
|
jbe@79
|
41
|
jbe@79
|
42 typedef struct {
|
jbe@79
|
43 int fd;
|
jbe@107
|
44 int issock;
|
jbe@107
|
45 sa_family_t addrfam;
|
jbe@94
|
46 int finished;
|
jbe@94
|
47 int closed;
|
jbe@81
|
48 int nonblocking;
|
jbe@95
|
49 int nopush;
|
jbe@85
|
50 int readerr;
|
jbe@105
|
51 int readbufin;
|
jbe@105
|
52 int readbufout;
|
jbe@81
|
53 int writeerr;
|
jbe@83
|
54 size_t writeleft;
|
jbe@132
|
55 size_t flushedleft;
|
jbe@83
|
56 #if LUA_VERSION_NUM >= 503
|
jbe@83
|
57 lua_Integer writeqin;
|
jbe@83
|
58 lua_Integer writeqout;
|
jbe@83
|
59 #else
|
jbe@83
|
60 int writeqin;
|
jbe@83
|
61 int writeqout;
|
jbe@83
|
62 #endif
|
jbe@83
|
63 size_t writeqoff;
|
jbe@103
|
64 int writebufin;
|
jbe@103
|
65 int writebufout;
|
jbe@85
|
66 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
67 char writebuf[MOONBR_IO_WRITEBUFLEN];
|
jbe@79
|
68 } moonbr_io_handle_t;
|
jbe@79
|
69
|
jbe@108
|
70 typedef struct {
|
jbe@108
|
71 int fd;
|
jbe@118
|
72 sa_family_t addrfam;
|
jbe@108
|
73 int nonblocking;
|
jbe@108
|
74 } moonbr_io_listener_t;
|
jbe@108
|
75
|
jbe@148
|
76 static int moonbr_io_yield(lua_State *L) {
|
jbe@149
|
77 return lua_yield(L, lua_gettop(L));
|
jbe@140
|
78 }
|
jbe@140
|
79
|
jbe@140
|
80 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
81 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
82 #else
|
jbe@140
|
83 static int moonbr_io_cont_returnall(lua_State *L) {
|
jbe@140
|
84 #endif
|
jbe@140
|
85 return lua_gettop(L);
|
jbe@140
|
86 }
|
jbe@140
|
87
|
jbe@145
|
88 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
|
jbe@145
|
89 static int yieldfunc(lua_State *L) { \
|
jbe@145
|
90 int args; \
|
jbe@145
|
91 lua_pushcfunction(L, callfunc); \
|
jbe@145
|
92 lua_insert(L, 1); \
|
jbe@145
|
93 args = lua_gettop(L); \
|
jbe@148
|
94 lua_pushcfunction(L, moonbr_io_yield); \
|
jbe@145
|
95 lua_insert(L, 3); \
|
jbe@145
|
96 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
|
jbe@145
|
97 return lua_gettop(L); \
|
jbe@145
|
98 }
|
jbe@145
|
99
|
jbe@81
|
100 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
|
101 int flags;
|
jbe@95
|
102 if (handle->nonblocking == nonblocking) return;
|
jbe@95
|
103 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@95
|
104 if (flags == -1) {
|
jbe@95
|
105 moonbr_io_errmsg();
|
jbe@96
|
106 close(handle->fd);
|
jbe@96
|
107 handle->fd = -1;
|
jbe@96
|
108 handle->closed = 1;
|
jbe@95
|
109 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@81
|
110 }
|
jbe@95
|
111 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@95
|
112 else flags &= ~O_NONBLOCK;
|
jbe@95
|
113 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
|
jbe@95
|
114 moonbr_io_errmsg();
|
jbe@96
|
115 close(handle->fd);
|
jbe@96
|
116 handle->fd = -1;
|
jbe@96
|
117 handle->closed = 1;
|
jbe@95
|
118 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@95
|
119 }
|
jbe@95
|
120 handle->nonblocking = nonblocking;
|
jbe@81
|
121 }
|
jbe@81
|
122
|
jbe@87
|
123 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
124 struct linger lingerval = { 0, };
|
jbe@107
|
125 if (!handle->issock) return;
|
jbe@87
|
126 if (timeout >= 0) {
|
jbe@87
|
127 lingerval.l_onoff = 1;
|
jbe@87
|
128 lingerval.l_linger = timeout;
|
jbe@87
|
129 }
|
jbe@87
|
130 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
|
131 moonbr_io_errmsg();
|
jbe@96
|
132 close(handle->fd);
|
jbe@96
|
133 handle->fd = -1;
|
jbe@96
|
134 handle->closed = 1;
|
jbe@95
|
135 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
136 }
|
jbe@87
|
137 }
|
jbe@87
|
138
|
jbe@133
|
139 static inline void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
140 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
141 if (
|
jbe@107
|
142 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
|
143 handle->nopush == nopush
|
jbe@107
|
144 ) return;
|
jbe@96
|
145 #if defined(TCP_NOPUSH)
|
jbe@96
|
146 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@104
|
147 #elif defined(TCP_CORK)
|
jbe@104
|
148 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
|
jbe@104
|
149 #endif
|
jbe@96
|
150 moonbr_io_errmsg();
|
jbe@96
|
151 close(handle->fd);
|
jbe@96
|
152 handle->fd = -1;
|
jbe@96
|
153 handle->closed = 1;
|
jbe@104
|
154 #if defined(TCP_NOPUSH)
|
jbe@96
|
155 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
|
jbe@96
|
156 #elif defined(TCP_CORK)
|
jbe@95
|
157 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
|
158 #endif
|
jbe@95
|
159 }
|
jbe@95
|
160 handle->nopush = nopush;
|
jbe@96
|
161 #else
|
jbe@96
|
162 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
163 #endif
|
jbe@95
|
164 }
|
jbe@95
|
165
|
jbe@86
|
166 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
167 moonbr_io_handle_t *handle;
|
jbe@85
|
168 lua_Integer maxread;
|
jbe@85
|
169 const char *terminatorstr;
|
jbe@85
|
170 size_t terminatorlen;
|
jbe@137
|
171 char terminator = 0; /* initialize to avoid compiler warning */
|
jbe@85
|
172 luaL_Buffer luabuf;
|
jbe@85
|
173 size_t luabufcnt = 0;
|
jbe@105
|
174 int remaining;
|
jbe@85
|
175 char *terminatorpos;
|
jbe@103
|
176 ssize_t bytesread;
|
jbe@85
|
177 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@85
|
178 maxread = luaL_optinteger(L, 2, 0);
|
jbe@85
|
179 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
180 if (terminatorlen) {
|
jbe@85
|
181 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
182 terminator = terminatorstr[0];
|
jbe@85
|
183 }
|
jbe@86
|
184 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
185 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
186 if (handle->readerr) {
|
jbe@85
|
187 lua_pushnil(L);
|
jbe@85
|
188 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
189 return 2;
|
jbe@85
|
190 }
|
jbe@143
|
191 if (handle->fd < 0) {
|
jbe@143
|
192 /* fake EOF to simulate shutdown */
|
jbe@143
|
193 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
194 else lua_pushinteger(L, 0);
|
jbe@143
|
195 lua_pushliteral(L, "eof");
|
jbe@143
|
196 return 2;
|
jbe@143
|
197 }
|
jbe@105
|
198 handle->readerr = 1;
|
jbe@85
|
199 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@86
|
200 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
201 while (1) {
|
jbe@105
|
202 remaining = -1;
|
jbe@142
|
203 terminatorpos = NULL;
|
jbe@105
|
204 if (
|
jbe@105
|
205 maxread > 0 &&
|
jbe@143
|
206 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
207 ) {
|
jbe@142
|
208 remaining = (size_t)maxread - luabufcnt;
|
jbe@142
|
209 terminatorpos = memchr(
|
jbe@142
|
210 handle->readbuf + handle->readbufout,
|
jbe@142
|
211 terminator,
|
jbe@142
|
212 remaining
|
jbe@142
|
213 );
|
jbe@85
|
214 } else if (terminatorlen) {
|
jbe@105
|
215 terminatorpos = memchr(
|
jbe@105
|
216 handle->readbuf + handle->readbufout,
|
jbe@105
|
217 terminator,
|
jbe@105
|
218 handle->readbufin - handle->readbufout
|
jbe@105
|
219 );
|
jbe@85
|
220 }
|
jbe@142
|
221 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
222 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
223 );
|
jbe@105
|
224 if (remaining >= 0) {
|
jbe@86
|
225 if (!drain) {
|
jbe@105
|
226 luaL_addlstring(
|
jbe@105
|
227 &luabuf,
|
jbe@105
|
228 handle->readbuf + handle->readbufout,
|
jbe@105
|
229 remaining
|
jbe@105
|
230 );
|
jbe@86
|
231 luaL_pushresult(&luabuf);
|
jbe@90
|
232 } else {
|
jbe@105
|
233 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
234 }
|
jbe@143
|
235 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
236 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
237 handle->readbufout += remaining;
|
jbe@105
|
238 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
239 handle->readbufin = 0;
|
jbe@143
|
240 handle->readbufout = 0;
|
jbe@105
|
241 }
|
jbe@104
|
242 handle->readerr = 0;
|
jbe@143
|
243 return 2;
|
jbe@85
|
244 }
|
jbe@105
|
245 if (!drain) luaL_addlstring(
|
jbe@105
|
246 &luabuf,
|
jbe@105
|
247 handle->readbuf + handle->readbufout,
|
jbe@105
|
248 handle->readbufin - handle->readbufout
|
jbe@105
|
249 );
|
jbe@105
|
250 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
251 handle->readbufout = 0;
|
jbe@85
|
252 do {
|
jbe@103
|
253 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
254 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
255 if (
|
jbe@105
|
256 bytesread == 0 || (
|
jbe@105
|
257 nonblocking &&
|
jbe@105
|
258 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
259 )
|
jbe@105
|
260 ) {
|
jbe@105
|
261 handle->readbufin = 0;
|
jbe@143
|
262 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
263 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
264 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
265 else lua_pushliteral(L, "block");
|
jbe@105
|
266 handle->readerr = 0;
|
jbe@143
|
267 return 2;
|
jbe@105
|
268 }
|
jbe@103
|
269 if (bytesread < 0) {
|
jbe@85
|
270 moonbr_io_errmsg();
|
jbe@85
|
271 lua_pushnil(L);
|
jbe@85
|
272 lua_pushstring(L, errmsg);
|
jbe@85
|
273 return 2;
|
jbe@85
|
274 }
|
jbe@105
|
275 handle->readbufin = bytesread;
|
jbe@86
|
276 }
|
jbe@85
|
277 }
|
jbe@85
|
278
|
jbe@85
|
279 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
280 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
281 }
|
jbe@85
|
282
|
jbe@85
|
283 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
284 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
285 }
|
jbe@86
|
286
|
jbe@86
|
287 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
288 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
289 }
|
jbe@86
|
290
|
jbe@86
|
291 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
292 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
293 }
|
jbe@85
|
294
|
jbe@140
|
295 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
296 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
297 #else
|
jbe@140
|
298 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
299 #endif
|
jbe@143
|
300 lua_Integer remaining;
|
jbe@143
|
301 size_t len;
|
jbe@140
|
302 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
303 int ctx = 0;
|
jbe@140
|
304 lua_getctx(L, &ctx);
|
jbe@140
|
305 #endif
|
jbe@140
|
306 remaining = lua_tointeger(L, 3);
|
jbe@140
|
307 while (1) {
|
jbe@140
|
308 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
309 lua_pushvalue(L, 1);
|
jbe@140
|
310 lua_pushvalue(L, 3);
|
jbe@140
|
311 lua_pushvalue(L, 4);
|
jbe@140
|
312 lua_call(L, 3, 2);
|
jbe@143
|
313 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
314 lua_insert(L, -2);
|
jbe@143
|
315 len = lua_rawlen(L, -1);
|
jbe@143
|
316 if (ctx == 0) {
|
jbe@143
|
317 lua_replace(L, 5);
|
jbe@143
|
318 ctx = 1;
|
jbe@143
|
319 } else if (ctx == 1) {
|
jbe@143
|
320 lua_pushvalue(L, 5);
|
jbe@143
|
321 lua_newtable(L);
|
jbe@143
|
322 lua_replace(L, 5);
|
jbe@143
|
323 lua_rawseti(L, 5, 2);
|
jbe@143
|
324 lua_rawseti(L, 5, 1);
|
jbe@143
|
325 ctx = 2;
|
jbe@140
|
326 } else {
|
jbe@143
|
327 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
328 }
|
jbe@144
|
329 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
330 lua_pop(L, 1);
|
jbe@144
|
331 if (remaining >= 0 && len) {
|
jbe@143
|
332 remaining -= len;
|
jbe@143
|
333 lua_pushinteger(L, remaining);
|
jbe@143
|
334 lua_replace(L, 3);
|
jbe@143
|
335 }
|
jbe@140
|
336 lua_pushvalue(L, 2);
|
jbe@152
|
337 lua_callk(L, 0, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
338 }
|
jbe@140
|
339 if (ctx == 1) {
|
jbe@140
|
340 lua_pushvalue(L, 5);
|
jbe@140
|
341 } else {
|
jbe@140
|
342 luaL_Buffer buf;
|
jbe@140
|
343 lua_Integer i, chunkcount;
|
jbe@140
|
344 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
345 luaL_buffinit(L, &buf);
|
jbe@140
|
346 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
347 lua_rawgeti(L, 5, i);
|
jbe@140
|
348 luaL_addvalue(&buf);
|
jbe@140
|
349 }
|
jbe@140
|
350 luaL_pushresult(&buf);
|
jbe@140
|
351 }
|
jbe@143
|
352 lua_pushvalue(L, -2);
|
jbe@143
|
353 return 2;
|
jbe@140
|
354 }
|
jbe@140
|
355
|
jbe@140
|
356 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
357 lua_settop(L, 4);
|
jbe@140
|
358 lua_pushnil(L);
|
jbe@140
|
359 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
360 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
361 #else
|
jbe@140
|
362 return moonbr_io_read_cont(L);
|
jbe@140
|
363 #endif
|
jbe@140
|
364 }
|
jbe@140
|
365
|
jbe@145
|
366 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
|
jbe@140
|
367
|
jbe@144
|
368 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
369 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
370 #else
|
jbe@144
|
371 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
372 #endif
|
jbe@144
|
373 lua_Integer remaining, len;
|
jbe@144
|
374 size_t totallen = 0;
|
jbe@144
|
375 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
376 int ctx = 0;
|
jbe@144
|
377 lua_getctx(L, &ctx);
|
jbe@144
|
378 #endif
|
jbe@144
|
379 remaining = lua_tointeger(L, 3);
|
jbe@144
|
380 while (1) {
|
jbe@144
|
381 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
382 lua_pushvalue(L, 1);
|
jbe@144
|
383 lua_pushvalue(L, 3);
|
jbe@144
|
384 lua_pushvalue(L, 4);
|
jbe@144
|
385 lua_call(L, 3, 2);
|
jbe@144
|
386 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
387 lua_insert(L, -2);
|
jbe@144
|
388 len = lua_tointeger(L, -1);
|
jbe@144
|
389 lua_pop(L, 1);
|
jbe@144
|
390 totallen += len;
|
jbe@144
|
391 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
392 lua_pop(L, 1);
|
jbe@144
|
393 if (remaining >= 0 && len) {
|
jbe@144
|
394 remaining -= len;
|
jbe@144
|
395 lua_pushinteger(L, remaining);
|
jbe@144
|
396 lua_replace(L, 3);
|
jbe@144
|
397 }
|
jbe@144
|
398 lua_pushvalue(L, 2);
|
jbe@152
|
399 lua_callk(L, 0, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
400 }
|
jbe@144
|
401 lua_pushinteger(L, totallen);
|
jbe@144
|
402 lua_pushvalue(L, -2);
|
jbe@144
|
403 return 2;
|
jbe@144
|
404 }
|
jbe@144
|
405
|
jbe@144
|
406 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
407 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
408 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
409 #else
|
jbe@144
|
410 return moonbr_io_drain_cont(L);
|
jbe@144
|
411 #endif
|
jbe@144
|
412 }
|
jbe@144
|
413
|
jbe@145
|
414 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
|
jbe@144
|
415
|
jbe@81
|
416 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
417 moonbr_io_handle_t *handle;
|
jbe@80
|
418 int i, top;
|
jbe@80
|
419 const char *str;
|
jbe@92
|
420 size_t strlen;
|
jbe@103
|
421 ssize_t written;
|
jbe@80
|
422 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
423 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
424 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
425 if (handle->writeerr) {
|
jbe@80
|
426 lua_pushnil(L);
|
jbe@80
|
427 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
428 return 2;
|
jbe@80
|
429 }
|
jbe@103
|
430 handle->writeerr = 1;
|
jbe@81
|
431 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
432 top = lua_gettop(L);
|
jbe@81
|
433 lua_getuservalue(L, 1);
|
jbe@103
|
434 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
435 for (i=2; i<=top; i++) {
|
jbe@84
|
436 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
437 lua_pushvalue(L, i);
|
jbe@84
|
438 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
439 handle->writeleft += strlen;
|
jbe@81
|
440 }
|
jbe@132
|
441 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
442 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
443 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
444 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
445 while (handle->writeqoff < strlen) {
|
jbe@103
|
446 if (
|
jbe@132
|
447 strlen - handle->writeqoff <
|
jbe@103
|
448 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
449 ) {
|
jbe@103
|
450 memcpy(
|
jbe@103
|
451 handle->writebuf + handle->writebufin,
|
jbe@103
|
452 str + handle->writeqoff,
|
jbe@103
|
453 strlen - handle->writeqoff
|
jbe@103
|
454 );
|
jbe@103
|
455 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
456 break;
|
jbe@80
|
457 } else {
|
jbe@103
|
458 memcpy(
|
jbe@103
|
459 handle->writebuf + handle->writebufin,
|
jbe@103
|
460 str + handle->writeqoff,
|
jbe@103
|
461 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
462 );
|
jbe@103
|
463 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@103
|
464 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@133
|
465 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
466 written = write(
|
jbe@103
|
467 handle->fd,
|
jbe@103
|
468 handle->writebuf + handle->writebufout,
|
jbe@103
|
469 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
470 );
|
jbe@103
|
471 if (written < 0) {
|
jbe@81
|
472 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
473 goto moonbr_io_write_impl_block;
|
jbe@81
|
474 } else if (errno != EINTR) {
|
jbe@80
|
475 moonbr_io_errmsg();
|
jbe@80
|
476 lua_pushnil(L);
|
jbe@80
|
477 lua_pushstring(L, errmsg);
|
jbe@80
|
478 return 2;
|
jbe@80
|
479 }
|
jbe@103
|
480 } else {
|
jbe@103
|
481 handle->writebufout += written;
|
jbe@103
|
482 handle->writeleft -= written;
|
jbe@133
|
483 if (handle->flushedleft) {
|
jbe@133
|
484 if (written >= handle->flushedleft) {
|
jbe@133
|
485 handle->flushedleft = 0;
|
jbe@133
|
486 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
487 } else {
|
jbe@133
|
488 handle->flushedleft -= written;
|
jbe@133
|
489 }
|
jbe@133
|
490 }
|
jbe@80
|
491 }
|
jbe@80
|
492 }
|
jbe@103
|
493 handle->writebufin = 0;
|
jbe@103
|
494 handle->writebufout = 0;
|
jbe@80
|
495 }
|
jbe@80
|
496 }
|
jbe@81
|
497 handle->writeqoff = 0;
|
jbe@81
|
498 lua_pop(L, 1);
|
jbe@81
|
499 lua_pushnil(L);
|
jbe@83
|
500 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
501 }
|
jbe@132
|
502 while (handle->flushedleft) {
|
jbe@133
|
503 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@132
|
504 written = write(
|
jbe@132
|
505 handle->fd,
|
jbe@132
|
506 handle->writebuf + handle->writebufout,
|
jbe@132
|
507 handle->writebufin - handle->writebufout
|
jbe@132
|
508 );
|
jbe@132
|
509 if (written < 0) {
|
jbe@132
|
510 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
511 goto moonbr_io_write_impl_block;
|
jbe@132
|
512 } else if (errno != EINTR) {
|
jbe@132
|
513 moonbr_io_errmsg();
|
jbe@132
|
514 lua_pushnil(L);
|
jbe@132
|
515 lua_pushstring(L, errmsg);
|
jbe@132
|
516 return 2;
|
jbe@81
|
517 }
|
jbe@132
|
518 } else {
|
jbe@132
|
519 handle->writebufout += written;
|
jbe@132
|
520 handle->writeleft -= written;
|
jbe@133
|
521 if (handle->flushedleft) {
|
jbe@133
|
522 if (written >= handle->flushedleft) {
|
jbe@133
|
523 handle->flushedleft = 0;
|
jbe@133
|
524 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
525 } else {
|
jbe@133
|
526 handle->flushedleft -= written;
|
jbe@133
|
527 }
|
jbe@133
|
528 }
|
jbe@81
|
529 }
|
jbe@132
|
530 }
|
jbe@132
|
531 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
532 handle->writebufin = 0;
|
jbe@103
|
533 handle->writebufout = 0;
|
jbe@81
|
534 }
|
jbe@103
|
535 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
536 else lua_pushvalue(L, 1);
|
jbe@103
|
537 handle->writeerr = 0;
|
jbe@80
|
538 return 1;
|
jbe@81
|
539 moonbr_io_write_impl_block:
|
jbe@91
|
540 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
541 handle->writeerr = 0;
|
jbe@81
|
542 return 1;
|
jbe@81
|
543 }
|
jbe@81
|
544
|
jbe@81
|
545 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
546 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
547 }
|
jbe@81
|
548
|
jbe@81
|
549 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
550 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
551 }
|
jbe@80
|
552
|
jbe@80
|
553 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
554 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
555 }
|
jbe@81
|
556
|
jbe@81
|
557 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
558 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
559 }
|
jbe@80
|
560
|
jbe@145
|
561 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
562 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@145
|
563 #else
|
jbe@145
|
564 static int moonbr_io_write_cont(lua_State *L) {
|
jbe@145
|
565 #endif
|
jbe@145
|
566 while (1) {
|
jbe@145
|
567 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
568 lua_pushvalue(L, 1);
|
jbe@145
|
569 lua_call(L, 1, 2);
|
jbe@145
|
570 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
571 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
572 lua_pushvalue(L, 1);
|
jbe@145
|
573 return 1;
|
jbe@145
|
574 }
|
jbe@145
|
575 lua_pop(L, 2);
|
jbe@145
|
576 lua_pushvalue(L, 2);
|
jbe@152
|
577 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
|
jbe@145
|
578 }
|
jbe@145
|
579 }
|
jbe@145
|
580
|
jbe@145
|
581 static int moonbr_io_write_call(lua_State *L) {
|
jbe@145
|
582 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
583 lua_insert(L, 3);
|
jbe@145
|
584 lua_pushvalue(L, 1);
|
jbe@145
|
585 lua_insert(L, 4);
|
jbe@145
|
586 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
587 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
588 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
589 lua_pushvalue(L, 1);
|
jbe@145
|
590 return 1;
|
jbe@145
|
591 }
|
jbe@145
|
592 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
593 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
594 #else
|
jbe@145
|
595 return moonbr_io_write_cont(L);
|
jbe@145
|
596 #endif
|
jbe@145
|
597 }
|
jbe@145
|
598
|
jbe@145
|
599 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
|
jbe@145
|
600
|
jbe@145
|
601 static int moonbr_io_flush_call(lua_State *L) {
|
jbe@145
|
602 lua_pushcfunction(L, moonbr_io_flush_nb);
|
jbe@145
|
603 lua_insert(L, 3);
|
jbe@145
|
604 lua_pushvalue(L, 1);
|
jbe@145
|
605 lua_insert(L, 4);
|
jbe@145
|
606 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
607 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
608 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
609 lua_pushvalue(L, 1);
|
jbe@145
|
610 return 1;
|
jbe@145
|
611 }
|
jbe@145
|
612 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
613 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
614 #else
|
jbe@145
|
615 return moonbr_io_write_cont(L);
|
jbe@145
|
616 #endif
|
jbe@145
|
617 }
|
jbe@145
|
618
|
jbe@145
|
619 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
|
jbe@145
|
620
|
jbe@88
|
621 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
622 moonbr_io_handle_t *handle;
|
jbe@88
|
623 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
624 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
625 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
626 if (handle->writeleft) {
|
jbe@94
|
627 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
628 lua_pushvalue(L, 1);
|
jbe@116
|
629 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
630 handle->finished = 1;
|
jbe@116
|
631 lua_error(L);
|
jbe@116
|
632 }
|
jbe@94
|
633 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
634 handle->finished = 1;
|
jbe@94
|
635 return 2;
|
jbe@88
|
636 }
|
jbe@94
|
637 }
|
jbe@94
|
638 handle->finished = 1;
|
jbe@107
|
639 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@88
|
640 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
641 moonbr_io_errmsg();
|
jbe@88
|
642 lua_pushnil(L);
|
jbe@88
|
643 lua_pushstring(L, errmsg);
|
jbe@88
|
644 return 2;
|
jbe@88
|
645 }
|
jbe@94
|
646 } else {
|
jbe@94
|
647 if (close(handle->fd)) {
|
jbe@94
|
648 moonbr_io_errmsg();
|
jbe@94
|
649 handle->fd = -1;
|
jbe@94
|
650 lua_pushnil(L);
|
jbe@94
|
651 lua_pushstring(L, errmsg);
|
jbe@94
|
652 return 2;
|
jbe@94
|
653 }
|
jbe@94
|
654 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
655 }
|
jbe@88
|
656 lua_pushboolean(L, 1);
|
jbe@88
|
657 return 1;
|
jbe@88
|
658 }
|
jbe@88
|
659
|
jbe@94
|
660 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
661 moonbr_io_handle_t *handle;
|
jbe@83
|
662 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
663 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
664 if (!reset) {
|
jbe@87
|
665 if (handle->writeleft) {
|
jbe@87
|
666 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
667 lua_pushvalue(L, 1);
|
jbe@116
|
668 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
669 handle->closed = 1;
|
jbe@116
|
670 close(handle->fd);
|
jbe@116
|
671 handle->fd = -1;
|
jbe@116
|
672 lua_error(L);
|
jbe@116
|
673 }
|
jbe@129
|
674 handle->closed = 1;
|
jbe@87
|
675 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
676 close(handle->fd);
|
jbe@87
|
677 handle->fd = -1;
|
jbe@87
|
678 return 2;
|
jbe@87
|
679 }
|
jbe@129
|
680 } else {
|
jbe@129
|
681 handle->closed = 1;
|
jbe@129
|
682 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
683 }
|
jbe@129
|
684 } else {
|
jbe@129
|
685 handle->closed = 1;
|
jbe@83
|
686 }
|
jbe@94
|
687 if (handle->fd >= 0) {
|
jbe@94
|
688 if (close(handle->fd)) {
|
jbe@94
|
689 moonbr_io_errmsg();
|
jbe@94
|
690 handle->fd = -1;
|
jbe@94
|
691 lua_pushnil(L);
|
jbe@94
|
692 lua_pushstring(L, errmsg);
|
jbe@94
|
693 return 2;
|
jbe@94
|
694 }
|
jbe@104
|
695 handle->fd = -1;
|
jbe@83
|
696 }
|
jbe@83
|
697 lua_pushboolean(L, 1);
|
jbe@83
|
698 return 1;
|
jbe@84
|
699
|
jbe@83
|
700 }
|
jbe@83
|
701
|
jbe@94
|
702 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
703 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
704 }
|
jbe@94
|
705
|
jbe@84
|
706 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
707 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
708 }
|
jbe@84
|
709
|
jbe@108
|
710 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
711 moonbr_io_handle_t *handle;
|
jbe@88
|
712 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
713 if (handle->fd >= 0) {
|
jbe@88
|
714 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
715 lua_pushvalue(L, 1);
|
jbe@88
|
716 lua_pushinteger(L, 0);
|
jbe@88
|
717 lua_call(L, 2, 0);
|
jbe@88
|
718 }
|
jbe@88
|
719 return 0;
|
jbe@88
|
720 }
|
jbe@88
|
721
|
jbe@100
|
722 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
723 moonbr_io_handle_t *handle;
|
jbe@88
|
724 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
725 if (!handle->closed) {
|
jbe@100
|
726 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
727 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
728 lua_call(L, 1, 0);
|
jbe@88
|
729 }
|
jbe@88
|
730 }
|
jbe@88
|
731
|
jbe@107
|
732 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@79
|
733 moonbr_io_handle_t *handle;
|
jbe@107
|
734 struct sockaddr addr;
|
jbe@107
|
735 socklen_t addrlen;
|
jbe@79
|
736 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@79
|
737 handle->fd = fd;
|
jbe@107
|
738 addrlen = sizeof(addr);
|
jbe@107
|
739 if (getsockname(fd, &addr, &addrlen)) {
|
jbe@107
|
740 if (errno != ENOTSOCK) {
|
jbe@107
|
741 moonbr_io_errmsg();
|
jbe@107
|
742 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
743 }
|
jbe@107
|
744 handle->issock = 0;
|
jbe@107
|
745 } else {
|
jbe@107
|
746 handle->issock = 1;
|
jbe@107
|
747 handle->addrfam = addr.sa_family;
|
jbe@107
|
748 }
|
jbe@94
|
749 handle->finished = 0;
|
jbe@94
|
750 handle->closed = 0;
|
jbe@81
|
751 handle->nonblocking = -1;
|
jbe@95
|
752 handle->nopush = -1;
|
jbe@85
|
753 handle->readerr = 0;
|
jbe@105
|
754 handle->readbufin = 0;
|
jbe@105
|
755 handle->readbufout = 0;
|
jbe@81
|
756 handle->writeerr = 0;
|
jbe@81
|
757 handle->writeleft = 0;
|
jbe@132
|
758 handle->flushedleft = 0;
|
jbe@83
|
759 handle->writeqin = 0;
|
jbe@83
|
760 handle->writeqout = 0;
|
jbe@81
|
761 handle->writeqoff = 0;
|
jbe@103
|
762 handle->writebufin = 0;
|
jbe@103
|
763 handle->writebufout = 0;
|
jbe@87
|
764 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@79
|
765 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
766 lua_setmetatable(L, -2);
|
jbe@79
|
767 lua_newtable(L); // uservalue
|
jbe@81
|
768 lua_newtable(L);
|
jbe@103
|
769 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
770 lua_newtable(L); // public
|
jbe@107
|
771 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
772 struct sockaddr_in6 addr_in6;
|
jbe@107
|
773 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
774 const char *addrstr;
|
jbe@107
|
775 addrlen = sizeof(addr_in6);
|
jbe@107
|
776 if (getsockname(fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
777 moonbr_io_errmsg();
|
jbe@107
|
778 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
779 }
|
jbe@107
|
780 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
781 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
782 }
|
jbe@107
|
783 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
784 if (!addrstr) {
|
jbe@107
|
785 moonbr_io_errmsg();
|
jbe@107
|
786 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
787 } else {
|
jbe@107
|
788 lua_pushstring(L, addrstr);
|
jbe@107
|
789 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
790 }
|
jbe@107
|
791 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
792 lua_setfield(L, -2, "local_tcpport");
|
jbe@107
|
793 if (getpeername(fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
794 moonbr_io_errmsg();
|
jbe@107
|
795 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
796 }
|
jbe@107
|
797 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
798 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
799 }
|
jbe@107
|
800 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
801 if (!addrstr) {
|
jbe@107
|
802 moonbr_io_errmsg();
|
jbe@107
|
803 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
804 } else {
|
jbe@107
|
805 lua_pushstring(L, addrstr);
|
jbe@107
|
806 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
807 }
|
jbe@107
|
808 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
809 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
810 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
811 struct sockaddr_in addr_in;
|
jbe@107
|
812 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
813 const char *addrstr;
|
jbe@107
|
814 addrlen = sizeof(addr_in);
|
jbe@107
|
815 if (getsockname(fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
816 moonbr_io_errmsg();
|
jbe@107
|
817 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
818 }
|
jbe@107
|
819 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
820 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
821 }
|
jbe@107
|
822 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
823 if (!addrstr) {
|
jbe@107
|
824 moonbr_io_errmsg();
|
jbe@107
|
825 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
826 } else {
|
jbe@107
|
827 lua_pushstring(L, addrstr);
|
jbe@107
|
828 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
829 }
|
jbe@107
|
830 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
831 lua_setfield(L, -2, "local_tcpport");
|
jbe@107
|
832 if (getpeername(fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
833 moonbr_io_errmsg();
|
jbe@107
|
834 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
835 }
|
jbe@107
|
836 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
837 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
838 }
|
jbe@107
|
839 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
840 if (!addrstr) {
|
jbe@107
|
841 moonbr_io_errmsg();
|
jbe@107
|
842 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
843 } else {
|
jbe@107
|
844 lua_pushstring(L, addrstr);
|
jbe@107
|
845 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
846 }
|
jbe@107
|
847 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
848 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
849 }
|
jbe@79
|
850 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
851 lua_setmetatable(L, -2);
|
jbe@79
|
852 lua_setfield(L, -2, "public");
|
jbe@79
|
853 lua_setuservalue(L, -2);
|
jbe@79
|
854 }
|
jbe@79
|
855
|
jbe@79
|
856 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
857 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
858 lua_getuservalue(L, 1);
|
jbe@79
|
859 lua_getfield(L, -1, "public");
|
jbe@79
|
860 lua_pushvalue(L, 2);
|
jbe@79
|
861 lua_gettable(L, -2);
|
jbe@79
|
862 return 1;
|
jbe@79
|
863 }
|
jbe@79
|
864
|
jbe@79
|
865 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
866 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
867 lua_getuservalue(L, 1);
|
jbe@79
|
868 lua_getfield(L, -1, "public");
|
jbe@79
|
869 lua_pushvalue(L, 2);
|
jbe@79
|
870 lua_pushvalue(L, 3);
|
jbe@79
|
871 lua_settable(L, -3);
|
jbe@79
|
872 return 0;
|
jbe@79
|
873 }
|
jbe@79
|
874
|
jbe@111
|
875 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
876 const char *path;
|
jbe@111
|
877 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
878 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
879 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
880 ) - 1; /* one byte for termination */
|
jbe@111
|
881 int sock;
|
jbe@111
|
882 path = luaL_checkstring(L, 1);
|
jbe@111
|
883 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
884 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
885 sock = socket(
|
jbe@111
|
886 PF_LOCAL,
|
jbe@111
|
887 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
888 0
|
jbe@111
|
889 );
|
jbe@111
|
890 if (sock < 0) {
|
jbe@111
|
891 moonbr_io_errmsg();
|
jbe@111
|
892 lua_pushnil(L);
|
jbe@111
|
893 lua_pushstring(L, errmsg);
|
jbe@111
|
894 return 2;
|
jbe@111
|
895 }
|
jbe@111
|
896 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
897 if (!nonblocking && errno == EINTR) {
|
jbe@111
|
898 moonbr_io_errmsg();
|
jbe@111
|
899 close(sock);
|
jbe@111
|
900 lua_pushnil(L);
|
jbe@111
|
901 lua_pushstring(L, errmsg);
|
jbe@111
|
902 return 2;
|
jbe@111
|
903 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@111
|
904 moonbr_io_errmsg();
|
jbe@111
|
905 lua_pushnil(L);
|
jbe@111
|
906 lua_pushstring(L, errmsg);
|
jbe@111
|
907 return 2;
|
jbe@111
|
908 }
|
jbe@111
|
909 }
|
jbe@111
|
910 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
911 return 1;
|
jbe@111
|
912 }
|
jbe@111
|
913
|
jbe@111
|
914 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
915 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
916 }
|
jbe@111
|
917
|
jbe@111
|
918 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
919 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
920 }
|
jbe@111
|
921
|
jbe@99
|
922 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
923 const char *host, *port;
|
jbe@98
|
924 struct addrinfo hints = { 0, };
|
jbe@98
|
925 struct addrinfo *res, *addrinfo;
|
jbe@98
|
926 int errcode;
|
jbe@98
|
927 int sock;
|
jbe@98
|
928 host = luaL_checkstring(L, 1);
|
jbe@98
|
929 port = luaL_checkstring(L, 2);
|
jbe@98
|
930 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
931 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
932 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
933 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
934 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
935 if (errcode) {
|
jbe@102
|
936 freeaddrinfo(res);
|
jbe@98
|
937 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
938 moonbr_io_errmsg();
|
jbe@98
|
939 lua_pushnil(L);
|
jbe@98
|
940 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
941 } else {
|
jbe@98
|
942 lua_pushnil(L);
|
jbe@98
|
943 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
944 }
|
jbe@98
|
945 return 2;
|
jbe@98
|
946 }
|
jbe@98
|
947 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
948 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
949 }
|
jbe@98
|
950 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
951 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
952 }
|
jbe@98
|
953 addrinfo = res;
|
jbe@98
|
954 moonbr_io_tcpconnect_found:
|
jbe@99
|
955 sock = socket(
|
jbe@134
|
956 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
957 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
958 addrinfo->ai_protocol
|
jbe@99
|
959 );
|
jbe@98
|
960 if (sock < 0) {
|
jbe@98
|
961 moonbr_io_errmsg();
|
jbe@108
|
962 freeaddrinfo(res);
|
jbe@98
|
963 lua_pushnil(L);
|
jbe@98
|
964 lua_pushstring(L, errmsg);
|
jbe@108
|
965 return 2;
|
jbe@98
|
966 }
|
jbe@98
|
967 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
968 freeaddrinfo(res);
|
jbe@99
|
969 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
970 moonbr_io_errmsg();
|
jbe@99
|
971 close(sock);
|
jbe@99
|
972 lua_pushnil(L);
|
jbe@99
|
973 lua_pushstring(L, errmsg);
|
jbe@99
|
974 return 2;
|
jbe@99
|
975 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
976 moonbr_io_errmsg();
|
jbe@99
|
977 lua_pushnil(L);
|
jbe@99
|
978 lua_pushstring(L, errmsg);
|
jbe@99
|
979 return 2;
|
jbe@99
|
980 }
|
jbe@108
|
981 } else {
|
jbe@108
|
982 freeaddrinfo(res);
|
jbe@98
|
983 }
|
jbe@107
|
984 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
985 return 1;
|
jbe@98
|
986 }
|
jbe@98
|
987
|
jbe@99
|
988 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
989 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
990 }
|
jbe@99
|
991
|
jbe@99
|
992 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
993 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
994 }
|
jbe@99
|
995
|
jbe@112
|
996 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
997 moonbr_io_listener_t *listener;
|
jbe@112
|
998 const char *path;
|
jbe@118
|
999 struct stat sb;
|
jbe@112
|
1000 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
1001 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
1002 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
1003 ) - 1; /* one byte for termination */
|
jbe@112
|
1004 int sock;
|
jbe@112
|
1005 path = luaL_checkstring(L, 1);
|
jbe@112
|
1006 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
1007 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
1008 if (stat(path, &sb) == 0) {
|
jbe@118
|
1009 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
1010 }
|
jbe@112
|
1011 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1012 listener->fd = -1;
|
jbe@112
|
1013 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
1014 sock = socket(
|
jbe@112
|
1015 PF_LOCAL,
|
jbe@112
|
1016 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
1017 0
|
jbe@112
|
1018 );
|
jbe@112
|
1019 if (sock < 0) {
|
jbe@112
|
1020 moonbr_io_errmsg();
|
jbe@112
|
1021 lua_pushnil(L);
|
jbe@112
|
1022 lua_pushstring(L, errmsg);
|
jbe@112
|
1023 return 2;
|
jbe@112
|
1024 }
|
jbe@112
|
1025 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@112
|
1026 moonbr_io_errmsg();
|
jbe@112
|
1027 close(sock);
|
jbe@112
|
1028 lua_pushnil(L);
|
jbe@112
|
1029 lua_pushstring(L, errmsg);
|
jbe@112
|
1030 return 2;
|
jbe@112
|
1031 }
|
jbe@112
|
1032 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@112
|
1033 moonbr_io_errmsg();
|
jbe@112
|
1034 close(sock);
|
jbe@112
|
1035 lua_pushnil(L);
|
jbe@112
|
1036 lua_pushstring(L, errmsg);
|
jbe@112
|
1037 return 2;
|
jbe@112
|
1038 }
|
jbe@112
|
1039 listener->fd = sock;
|
jbe@118
|
1040 listener->addrfam = AF_LOCAL;
|
jbe@112
|
1041 listener->nonblocking = -1;
|
jbe@112
|
1042 return 1;
|
jbe@112
|
1043 }
|
jbe@112
|
1044
|
jbe@108
|
1045 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
1046 moonbr_io_listener_t *listener;
|
jbe@108
|
1047 const char *host, *port;
|
jbe@108
|
1048 struct addrinfo hints = { 0, };
|
jbe@108
|
1049 struct addrinfo *res, *addrinfo;
|
jbe@108
|
1050 int errcode;
|
jbe@108
|
1051 int sock;
|
jbe@108
|
1052 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1053 port = luaL_checkstring(L, 2);
|
jbe@108
|
1054 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1055 listener->fd = -1;
|
jbe@108
|
1056 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1057 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1058 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1059 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1060 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1061 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1062 if (errcode) {
|
jbe@108
|
1063 freeaddrinfo(res);
|
jbe@108
|
1064 if (errcode == EAI_SYSTEM) {
|
jbe@108
|
1065 moonbr_io_errmsg();
|
jbe@108
|
1066 lua_pushnil(L);
|
jbe@108
|
1067 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1068 } else {
|
jbe@108
|
1069 lua_pushnil(L);
|
jbe@108
|
1070 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1071 }
|
jbe@108
|
1072 return 2;
|
jbe@108
|
1073 }
|
jbe@108
|
1074 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1075 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1076 }
|
jbe@108
|
1077 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1078 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1079 }
|
jbe@108
|
1080 addrinfo = res;
|
jbe@108
|
1081 moonbr_io_tcpconnect_found:
|
jbe@118
|
1082 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1083 sock = socket(
|
jbe@134
|
1084 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1085 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1086 addrinfo->ai_protocol
|
jbe@108
|
1087 );
|
jbe@108
|
1088 if (sock < 0) {
|
jbe@108
|
1089 moonbr_io_errmsg();
|
jbe@108
|
1090 freeaddrinfo(res);
|
jbe@108
|
1091 lua_pushnil(L);
|
jbe@108
|
1092 lua_pushstring(L, errmsg);
|
jbe@108
|
1093 return 2;
|
jbe@108
|
1094 }
|
jbe@120
|
1095 {
|
jbe@120
|
1096 static const int reuseval = 1;
|
jbe@120
|
1097 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@120
|
1098 moonbr_io_errmsg();
|
jbe@120
|
1099 freeaddrinfo(res);
|
jbe@120
|
1100 close(sock);
|
jbe@120
|
1101 lua_pushnil(L);
|
jbe@120
|
1102 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1103 return 2;
|
jbe@120
|
1104 }
|
jbe@120
|
1105 }
|
jbe@108
|
1106 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1107 moonbr_io_errmsg();
|
jbe@108
|
1108 freeaddrinfo(res);
|
jbe@108
|
1109 close(sock);
|
jbe@108
|
1110 lua_pushnil(L);
|
jbe@108
|
1111 lua_pushstring(L, errmsg);
|
jbe@108
|
1112 return 2;
|
jbe@108
|
1113 }
|
jbe@108
|
1114 freeaddrinfo(res);
|
jbe@108
|
1115 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@108
|
1116 moonbr_io_errmsg();
|
jbe@108
|
1117 close(sock);
|
jbe@108
|
1118 lua_pushnil(L);
|
jbe@108
|
1119 lua_pushstring(L, errmsg);
|
jbe@108
|
1120 return 2;
|
jbe@108
|
1121 }
|
jbe@108
|
1122 listener->fd = sock;
|
jbe@108
|
1123 listener->nonblocking = -1;
|
jbe@108
|
1124 return 1;
|
jbe@108
|
1125 }
|
jbe@108
|
1126
|
jbe@108
|
1127 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1128 moonbr_io_listener_t *listener;
|
jbe@108
|
1129 int fd;
|
jbe@108
|
1130 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1131 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1132 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1133 int flags;
|
jbe@108
|
1134 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1135 if (flags == -1) {
|
jbe@108
|
1136 moonbr_io_errmsg();
|
jbe@108
|
1137 close(listener->fd);
|
jbe@108
|
1138 listener->fd = -1;
|
jbe@108
|
1139 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1140 }
|
jbe@108
|
1141 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1142 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1143 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@108
|
1144 moonbr_io_errmsg();
|
jbe@108
|
1145 close(listener->fd);
|
jbe@108
|
1146 listener->fd = -1;
|
jbe@108
|
1147 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1148 }
|
jbe@108
|
1149 listener->nonblocking = nonblocking;
|
jbe@108
|
1150 }
|
jbe@108
|
1151 while (1) {
|
jbe@108
|
1152 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@108
|
1153 if (fd < 0) {
|
jbe@108
|
1154 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1155 lua_pushboolean(L, 0);
|
jbe@108
|
1156 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1157 return 2;
|
jbe@108
|
1158 } else if (errno != EINTR) {
|
jbe@108
|
1159 moonbr_io_errmsg();
|
jbe@108
|
1160 lua_pushnil(L);
|
jbe@108
|
1161 lua_pushstring(L, errmsg);
|
jbe@108
|
1162 return 2;
|
jbe@108
|
1163 }
|
jbe@108
|
1164 } else {
|
jbe@108
|
1165 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1166 return 1;
|
jbe@108
|
1167 }
|
jbe@108
|
1168 }
|
jbe@108
|
1169 }
|
jbe@108
|
1170
|
jbe@108
|
1171 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1172 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1173 }
|
jbe@108
|
1174
|
jbe@108
|
1175 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1176 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1177 }
|
jbe@108
|
1178
|
jbe@108
|
1179 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1180 moonbr_io_listener_t *listener;
|
jbe@118
|
1181 struct sockaddr_un addr;
|
jbe@118
|
1182 socklen_t addrlen;
|
jbe@118
|
1183 struct stat sb;
|
jbe@108
|
1184 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1185 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1186 addrlen = sizeof(addr);
|
jbe@118
|
1187 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1188 if (close(listener->fd)) {
|
jbe@108
|
1189 moonbr_io_errmsg();
|
jbe@108
|
1190 listener->fd = -1;
|
jbe@118
|
1191 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1192 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1193 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1194 }
|
jbe@118
|
1195 }
|
jbe@108
|
1196 lua_pushnil(L);
|
jbe@108
|
1197 lua_pushstring(L, errmsg);
|
jbe@108
|
1198 return 2;
|
jbe@108
|
1199 }
|
jbe@108
|
1200 listener->fd = -1;
|
jbe@118
|
1201 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1202 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1203 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1204 }
|
jbe@118
|
1205 }
|
jbe@108
|
1206 lua_pushboolean(L, 1);
|
jbe@108
|
1207 return 1;
|
jbe@108
|
1208 }
|
jbe@108
|
1209
|
jbe@108
|
1210 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1211 moonbr_io_listener_t *listener;
|
jbe@108
|
1212 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1213 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1214 listener->fd = -1;
|
jbe@108
|
1215 return 0;
|
jbe@108
|
1216 }
|
jbe@108
|
1217
|
jbe@106
|
1218 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1219 moonbr_io_handle_t *handle;
|
jbe@108
|
1220 moonbr_io_listener_t *listener;
|
jbe@106
|
1221 int fd, isnum;
|
jbe@106
|
1222 int nfds = 0;
|
jbe@106
|
1223 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
1224 struct timeval timeout = {0, };
|
jbe@106
|
1225 int status;
|
jbe@106
|
1226 FD_ZERO(&readfds);
|
jbe@106
|
1227 FD_ZERO(&writefds);
|
jbe@106
|
1228 FD_ZERO(&exceptfds);
|
jbe@106
|
1229 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1230 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1231 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1232 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1233 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1234 if (handle) {
|
jbe@109
|
1235 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1236 fd = handle->fd;
|
jbe@122
|
1237 if (
|
jbe@122
|
1238 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1239 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1240 ) {
|
jbe@109
|
1241 lua_pushboolean(L, 1);
|
jbe@109
|
1242 return 1;
|
jbe@109
|
1243 }
|
jbe@106
|
1244 } else {
|
jbe@108
|
1245 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1246 if (listener) {
|
jbe@108
|
1247 fd = listener->fd;
|
jbe@108
|
1248 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1249 } else {
|
jbe@108
|
1250 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
1251 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
1252 }
|
jbe@106
|
1253 }
|
jbe@138
|
1254 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1255 FD_SET(fd, &readfds);
|
jbe@106
|
1256 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1257 }
|
jbe@106
|
1258 }
|
jbe@106
|
1259 }
|
jbe@106
|
1260 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
1261 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1262 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1263 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1264 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1265 if (handle) {
|
jbe@109
|
1266 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1267 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1268 fd = handle->fd;
|
jbe@106
|
1269 } else {
|
jbe@108
|
1270 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1271 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1272 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1273 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1274 }
|
jbe@138
|
1275 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1276 FD_SET(fd, &writefds);
|
jbe@106
|
1277 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1278 }
|
jbe@106
|
1279 }
|
jbe@106
|
1280 }
|
jbe@106
|
1281 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1282 lua_Number n;
|
jbe@106
|
1283 n = lua_tonumberx(L, 3, &isnum);
|
jbe@146
|
1284 if (isnum && n<0) {
|
jbe@146
|
1285 lua_pushboolean(L, 0);
|
jbe@146
|
1286 lua_pushliteral(L, "Negative timeout");
|
jbe@146
|
1287 return 2;
|
jbe@146
|
1288 } else if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
1289 timeout.tv_sec = n;
|
jbe@106
|
1290 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
1291 } else {
|
jbe@106
|
1292 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1293 }
|
jbe@106
|
1294 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
1295 } else {
|
jbe@106
|
1296 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
1297 }
|
jbe@106
|
1298 if (status == -1) {
|
jbe@106
|
1299 if (errno == EINTR) {
|
jbe@146
|
1300 lua_pushnil(L);
|
jbe@106
|
1301 lua_pushliteral(L, "Signal received while polling file descriptors");
|
jbe@106
|
1302 return 2;
|
jbe@106
|
1303 } else {
|
jbe@106
|
1304 moonbr_io_errmsg();
|
jbe@106
|
1305 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
1306 }
|
jbe@106
|
1307 } else if (status == 0) {
|
jbe@106
|
1308 lua_pushboolean(L, 0);
|
jbe@106
|
1309 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
1310 return 2;
|
jbe@106
|
1311 } else {
|
jbe@106
|
1312 lua_pushboolean(L, 1);
|
jbe@106
|
1313 return 1;
|
jbe@106
|
1314 }
|
jbe@106
|
1315 }
|
jbe@106
|
1316
|
jbe@115
|
1317 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1318 lua_Number sub;
|
jbe@115
|
1319 struct timespec tp;
|
jbe@115
|
1320 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1321 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1322 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1323 }
|
jbe@115
|
1324 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1325 return 1;
|
jbe@115
|
1326 }
|
jbe@115
|
1327
|
jbe@79
|
1328 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
1329 {"read", moonbr_io_read},
|
jbe@85
|
1330 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
1331 {"read_call", moonbr_io_read_call},
|
jbe@140
|
1332 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
1333 {"drain", moonbr_io_drain},
|
jbe@86
|
1334 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
1335 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
1336 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
1337 {"write", moonbr_io_write},
|
jbe@81
|
1338 {"write_nb", moonbr_io_write_nb},
|
jbe@145
|
1339 {"write_call", moonbr_io_write_call},
|
jbe@145
|
1340 {"write_yield", moonbr_io_write_yield},
|
jbe@80
|
1341 {"flush", moonbr_io_flush},
|
jbe@81
|
1342 {"flush_nb", moonbr_io_flush_nb},
|
jbe@145
|
1343 {"flush_call", moonbr_io_flush_call},
|
jbe@145
|
1344 {"flush_yield", moonbr_io_flush_yield},
|
jbe@88
|
1345 {"finish", moonbr_io_finish},
|
jbe@87
|
1346 {"close", moonbr_io_close},
|
jbe@85
|
1347 {"reset", moonbr_io_reset},
|
jbe@79
|
1348 {NULL, NULL}
|
jbe@79
|
1349 };
|
jbe@79
|
1350
|
jbe@79
|
1351 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1352 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1353 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1354 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1355 {NULL, NULL}
|
jbe@108
|
1356 };
|
jbe@108
|
1357
|
jbe@108
|
1358 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1359 {"accept", moonbr_io_accept},
|
jbe@108
|
1360 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1361 {"close", moonbr_io_unlisten},
|
jbe@108
|
1362 {NULL, NULL}
|
jbe@108
|
1363 };
|
jbe@108
|
1364
|
jbe@108
|
1365 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1366 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1367 {NULL, NULL}
|
jbe@79
|
1368 };
|
jbe@79
|
1369
|
jbe@79
|
1370 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1371 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1372 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1373 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1374 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
1375 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
1376 {"tcplisten", moonbr_io_tcplisten},
|
jbe@106
|
1377 {"poll", moonbr_io_poll},
|
jbe@115
|
1378 {"timeref", moonbr_io_timeref},
|
jbe@79
|
1379 {NULL, NULL}
|
jbe@79
|
1380 };
|
jbe@79
|
1381
|
jbe@79
|
1382 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
1383
|
jbe@113
|
1384 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@113
|
1385
|
jbe@80
|
1386 lua_newtable(L); // module
|
jbe@80
|
1387
|
jbe@79
|
1388 lua_newtable(L); // public metatable
|
jbe@79
|
1389 lua_newtable(L); // handle methods
|
jbe@79
|
1390 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
1391 lua_pushvalue(L, -1);
|
jbe@146
|
1392 lua_setfield(L, -4, "handle_pt");
|
jbe@79
|
1393 lua_setfield(L, -2, "__index");
|
jbe@79
|
1394 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1395
|
jbe@79
|
1396 lua_newtable(L); // handle metatable
|
jbe@79
|
1397 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@146
|
1398 lua_pushvalue(L, -1);
|
jbe@146
|
1399 lua_setfield(L, -3, "handle_mt");
|
jbe@79
|
1400 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
1401
|
jbe@108
|
1402 lua_newtable(L); // listener metatable
|
jbe@108
|
1403 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
1404 lua_newtable(L); // listener methods
|
jbe@108
|
1405 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
1406 lua_pushvalue(L, -1);
|
jbe@146
|
1407 lua_setfield(L, -4, "listener_pt");
|
jbe@108
|
1408 lua_setfield(L, -2, "__index");
|
jbe@146
|
1409 lua_pushvalue(L, -1);
|
jbe@146
|
1410 lua_setfield(L, -3, "listener_mt");
|
jbe@108
|
1411 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1412
|
jbe@79
|
1413 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
1414 return 1;
|
jbe@79
|
1415
|
jbe@79
|
1416 }
|
jbe@79
|
1417
|