rev |
line source |
jbe@79
|
1
|
jbe@137
|
2 #if defined(__linux__)
|
jbe@137
|
3 #define _GNU_SOURCE
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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@205
|
21 #include <sys/types.h>
|
jbe@205
|
22 #include <sys/wait.h>
|
jbe@79
|
23
|
jbe@79
|
24 #include <lua.h>
|
jbe@79
|
25 #include <lauxlib.h>
|
jbe@79
|
26 #include <lualib.h>
|
jbe@79
|
27
|
jbe@149
|
28 #include <assert.h>
|
jbe@149
|
29
|
jbe@80
|
30 #define MOONBR_IO_MAXSTRERRORLEN 80
|
jbe@85
|
31 #define MOONBR_IO_READBUFLEN 4096
|
jbe@80
|
32 #define MOONBR_IO_WRITEBUFLEN 4096
|
jbe@80
|
33
|
jbe@108
|
34 #define MOONBR_IO_LISTEN_BACKLOG 1024
|
jbe@108
|
35
|
jbe@80
|
36 #define moonbr_io_errmsg() \
|
jbe@80
|
37 char errmsg[MOONBR_IO_MAXSTRERRORLEN]; \
|
jbe@80
|
38 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
|
jbe@80
|
39
|
jbe@79
|
40 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
|
jbe@79
|
41 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
|
jbe@108
|
42 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
|
jbe@205
|
43 #define MOONBR_IO_CHILD_MT_REGKEY "moonbridge_io_child"
|
jbe@205
|
44 #define MOONBR_IO_CHILD_PT_REGKEY "moonbridge_io_child_pt"
|
jbe@79
|
45
|
jbe@79
|
46 typedef struct {
|
jbe@79
|
47 int fd;
|
jbe@107
|
48 int issock;
|
jbe@107
|
49 sa_family_t addrfam;
|
jbe@94
|
50 int finished;
|
jbe@94
|
51 int closed;
|
jbe@81
|
52 int nonblocking;
|
jbe@95
|
53 int nopush;
|
jbe@85
|
54 int readerr;
|
jbe@105
|
55 int readbufin;
|
jbe@105
|
56 int readbufout;
|
jbe@81
|
57 int writeerr;
|
jbe@83
|
58 size_t writeleft;
|
jbe@132
|
59 size_t flushedleft;
|
jbe@83
|
60 #if LUA_VERSION_NUM >= 503
|
jbe@83
|
61 lua_Integer writeqin;
|
jbe@83
|
62 lua_Integer writeqout;
|
jbe@83
|
63 #else
|
jbe@83
|
64 int writeqin;
|
jbe@83
|
65 int writeqout;
|
jbe@83
|
66 #endif
|
jbe@83
|
67 size_t writeqoff;
|
jbe@103
|
68 int writebufin;
|
jbe@103
|
69 int writebufout;
|
jbe@85
|
70 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
71 char writebuf[MOONBR_IO_WRITEBUFLEN];
|
jbe@79
|
72 } moonbr_io_handle_t;
|
jbe@79
|
73
|
jbe@108
|
74 typedef struct {
|
jbe@108
|
75 int fd;
|
jbe@118
|
76 sa_family_t addrfam;
|
jbe@108
|
77 int nonblocking;
|
jbe@108
|
78 } moonbr_io_listener_t;
|
jbe@108
|
79
|
jbe@205
|
80 typedef struct {
|
jbe@205
|
81 pid_t pid;
|
jbe@205
|
82 } moonbr_io_child_t;
|
jbe@205
|
83
|
jbe@148
|
84 static int moonbr_io_yield(lua_State *L) {
|
jbe@149
|
85 return lua_yield(L, lua_gettop(L));
|
jbe@140
|
86 }
|
jbe@140
|
87
|
jbe@140
|
88 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
89 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
90 #else
|
jbe@140
|
91 static int moonbr_io_cont_returnall(lua_State *L) {
|
jbe@140
|
92 #endif
|
jbe@140
|
93 return lua_gettop(L);
|
jbe@140
|
94 }
|
jbe@140
|
95
|
jbe@145
|
96 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
|
jbe@145
|
97 static int yieldfunc(lua_State *L) { \
|
jbe@145
|
98 int args; \
|
jbe@145
|
99 lua_pushcfunction(L, callfunc); \
|
jbe@145
|
100 lua_insert(L, 1); \
|
jbe@145
|
101 args = lua_gettop(L); \
|
jbe@148
|
102 lua_pushcfunction(L, moonbr_io_yield); \
|
jbe@145
|
103 lua_insert(L, 3); \
|
jbe@145
|
104 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
|
jbe@145
|
105 return lua_gettop(L); \
|
jbe@145
|
106 }
|
jbe@145
|
107
|
jbe@81
|
108 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
|
109 int flags;
|
jbe@95
|
110 if (handle->nonblocking == nonblocking) return;
|
jbe@95
|
111 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@95
|
112 if (flags == -1) {
|
jbe@95
|
113 moonbr_io_errmsg();
|
jbe@96
|
114 close(handle->fd);
|
jbe@96
|
115 handle->fd = -1;
|
jbe@96
|
116 handle->closed = 1;
|
jbe@95
|
117 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@81
|
118 }
|
jbe@95
|
119 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@95
|
120 else flags &= ~O_NONBLOCK;
|
jbe@95
|
121 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
|
jbe@95
|
122 moonbr_io_errmsg();
|
jbe@96
|
123 close(handle->fd);
|
jbe@96
|
124 handle->fd = -1;
|
jbe@96
|
125 handle->closed = 1;
|
jbe@95
|
126 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@95
|
127 }
|
jbe@95
|
128 handle->nonblocking = nonblocking;
|
jbe@81
|
129 }
|
jbe@81
|
130
|
jbe@87
|
131 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
132 struct linger lingerval = { 0, };
|
jbe@107
|
133 if (!handle->issock) return;
|
jbe@87
|
134 if (timeout >= 0) {
|
jbe@87
|
135 lingerval.l_onoff = 1;
|
jbe@87
|
136 lingerval.l_linger = timeout;
|
jbe@87
|
137 }
|
jbe@87
|
138 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
|
139 moonbr_io_errmsg();
|
jbe@96
|
140 close(handle->fd);
|
jbe@96
|
141 handle->fd = -1;
|
jbe@96
|
142 handle->closed = 1;
|
jbe@95
|
143 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
144 }
|
jbe@87
|
145 }
|
jbe@87
|
146
|
jbe@133
|
147 static inline void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
148 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
149 if (
|
jbe@107
|
150 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
|
151 handle->nopush == nopush
|
jbe@107
|
152 ) return;
|
jbe@96
|
153 #if defined(TCP_NOPUSH)
|
jbe@96
|
154 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@104
|
155 #elif defined(TCP_CORK)
|
jbe@104
|
156 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
|
jbe@104
|
157 #endif
|
jbe@96
|
158 moonbr_io_errmsg();
|
jbe@96
|
159 close(handle->fd);
|
jbe@96
|
160 handle->fd = -1;
|
jbe@96
|
161 handle->closed = 1;
|
jbe@104
|
162 #if defined(TCP_NOPUSH)
|
jbe@96
|
163 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
|
jbe@96
|
164 #elif defined(TCP_CORK)
|
jbe@95
|
165 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
|
166 #endif
|
jbe@95
|
167 }
|
jbe@95
|
168 handle->nopush = nopush;
|
jbe@96
|
169 #else
|
jbe@96
|
170 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
171 #endif
|
jbe@95
|
172 }
|
jbe@95
|
173
|
jbe@86
|
174 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
175 moonbr_io_handle_t *handle;
|
jbe@85
|
176 lua_Integer maxread;
|
jbe@85
|
177 const char *terminatorstr;
|
jbe@85
|
178 size_t terminatorlen;
|
jbe@193
|
179 char terminator;
|
jbe@85
|
180 luaL_Buffer luabuf;
|
jbe@85
|
181 size_t luabufcnt = 0;
|
jbe@105
|
182 int remaining;
|
jbe@85
|
183 char *terminatorpos;
|
jbe@103
|
184 ssize_t bytesread;
|
jbe@85
|
185 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@153
|
186 maxread = luaL_optinteger(L, 2, -1);
|
jbe@85
|
187 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
188 if (terminatorlen) {
|
jbe@85
|
189 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
190 terminator = terminatorstr[0];
|
jbe@85
|
191 }
|
jbe@86
|
192 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
193 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
194 if (handle->readerr) {
|
jbe@85
|
195 lua_pushnil(L);
|
jbe@85
|
196 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
197 return 2;
|
jbe@85
|
198 }
|
jbe@143
|
199 if (handle->fd < 0) {
|
jbe@143
|
200 /* fake EOF to simulate shutdown */
|
jbe@143
|
201 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
202 else lua_pushinteger(L, 0);
|
jbe@143
|
203 lua_pushliteral(L, "eof");
|
jbe@143
|
204 return 2;
|
jbe@143
|
205 }
|
jbe@105
|
206 handle->readerr = 1;
|
jbe@85
|
207 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@86
|
208 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
209 while (1) {
|
jbe@105
|
210 remaining = -1;
|
jbe@142
|
211 terminatorpos = NULL;
|
jbe@105
|
212 if (
|
jbe@153
|
213 maxread >= 0 &&
|
jbe@143
|
214 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
215 ) {
|
jbe@142
|
216 remaining = (size_t)maxread - luabufcnt;
|
jbe@193
|
217 if (terminatorlen) {
|
jbe@193
|
218 terminatorpos = memchr(
|
jbe@193
|
219 handle->readbuf + handle->readbufout,
|
jbe@193
|
220 terminator,
|
jbe@193
|
221 remaining
|
jbe@193
|
222 );
|
jbe@193
|
223 }
|
jbe@85
|
224 } else if (terminatorlen) {
|
jbe@105
|
225 terminatorpos = memchr(
|
jbe@105
|
226 handle->readbuf + handle->readbufout,
|
jbe@105
|
227 terminator,
|
jbe@105
|
228 handle->readbufin - handle->readbufout
|
jbe@105
|
229 );
|
jbe@85
|
230 }
|
jbe@142
|
231 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
232 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
233 );
|
jbe@105
|
234 if (remaining >= 0) {
|
jbe@86
|
235 if (!drain) {
|
jbe@105
|
236 luaL_addlstring(
|
jbe@105
|
237 &luabuf,
|
jbe@105
|
238 handle->readbuf + handle->readbufout,
|
jbe@105
|
239 remaining
|
jbe@105
|
240 );
|
jbe@86
|
241 luaL_pushresult(&luabuf);
|
jbe@90
|
242 } else {
|
jbe@105
|
243 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
244 }
|
jbe@143
|
245 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
246 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
247 handle->readbufout += remaining;
|
jbe@105
|
248 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
249 handle->readbufin = 0;
|
jbe@143
|
250 handle->readbufout = 0;
|
jbe@105
|
251 }
|
jbe@104
|
252 handle->readerr = 0;
|
jbe@143
|
253 return 2;
|
jbe@85
|
254 }
|
jbe@105
|
255 if (!drain) luaL_addlstring(
|
jbe@105
|
256 &luabuf,
|
jbe@105
|
257 handle->readbuf + handle->readbufout,
|
jbe@105
|
258 handle->readbufin - handle->readbufout
|
jbe@105
|
259 );
|
jbe@105
|
260 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
261 handle->readbufout = 0;
|
jbe@85
|
262 do {
|
jbe@103
|
263 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
264 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
265 if (
|
jbe@105
|
266 bytesread == 0 || (
|
jbe@105
|
267 nonblocking &&
|
jbe@105
|
268 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
269 )
|
jbe@105
|
270 ) {
|
jbe@105
|
271 handle->readbufin = 0;
|
jbe@143
|
272 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
273 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
274 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
275 else lua_pushliteral(L, "block");
|
jbe@105
|
276 handle->readerr = 0;
|
jbe@143
|
277 return 2;
|
jbe@105
|
278 }
|
jbe@103
|
279 if (bytesread < 0) {
|
jbe@85
|
280 moonbr_io_errmsg();
|
jbe@85
|
281 lua_pushnil(L);
|
jbe@85
|
282 lua_pushstring(L, errmsg);
|
jbe@85
|
283 return 2;
|
jbe@85
|
284 }
|
jbe@105
|
285 handle->readbufin = bytesread;
|
jbe@86
|
286 }
|
jbe@85
|
287 }
|
jbe@85
|
288
|
jbe@85
|
289 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
290 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
291 }
|
jbe@85
|
292
|
jbe@85
|
293 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
294 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
295 }
|
jbe@86
|
296
|
jbe@86
|
297 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
298 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
299 }
|
jbe@86
|
300
|
jbe@86
|
301 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
302 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
303 }
|
jbe@85
|
304
|
jbe@140
|
305 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
306 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
307 #else
|
jbe@140
|
308 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
309 #endif
|
jbe@143
|
310 lua_Integer remaining;
|
jbe@143
|
311 size_t len;
|
jbe@140
|
312 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
313 int ctx = 0;
|
jbe@140
|
314 lua_getctx(L, &ctx);
|
jbe@140
|
315 #endif
|
jbe@140
|
316 remaining = lua_tointeger(L, 3);
|
jbe@140
|
317 while (1) {
|
jbe@140
|
318 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
319 lua_pushvalue(L, 1);
|
jbe@140
|
320 lua_pushvalue(L, 3);
|
jbe@140
|
321 lua_pushvalue(L, 4);
|
jbe@140
|
322 lua_call(L, 3, 2);
|
jbe@143
|
323 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
324 lua_insert(L, -2);
|
jbe@143
|
325 len = lua_rawlen(L, -1);
|
jbe@143
|
326 if (ctx == 0) {
|
jbe@143
|
327 lua_replace(L, 5);
|
jbe@143
|
328 ctx = 1;
|
jbe@143
|
329 } else if (ctx == 1) {
|
jbe@143
|
330 lua_pushvalue(L, 5);
|
jbe@143
|
331 lua_newtable(L);
|
jbe@143
|
332 lua_replace(L, 5);
|
jbe@143
|
333 lua_rawseti(L, 5, 2);
|
jbe@143
|
334 lua_rawseti(L, 5, 1);
|
jbe@143
|
335 ctx = 2;
|
jbe@140
|
336 } else {
|
jbe@143
|
337 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
338 }
|
jbe@144
|
339 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
340 lua_pop(L, 1);
|
jbe@144
|
341 if (remaining >= 0 && len) {
|
jbe@143
|
342 remaining -= len;
|
jbe@143
|
343 lua_pushinteger(L, remaining);
|
jbe@143
|
344 lua_replace(L, 3);
|
jbe@143
|
345 }
|
jbe@140
|
346 lua_pushvalue(L, 2);
|
jbe@152
|
347 lua_callk(L, 0, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
348 }
|
jbe@140
|
349 if (ctx == 1) {
|
jbe@140
|
350 lua_pushvalue(L, 5);
|
jbe@140
|
351 } else {
|
jbe@140
|
352 luaL_Buffer buf;
|
jbe@140
|
353 lua_Integer i, chunkcount;
|
jbe@140
|
354 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
355 luaL_buffinit(L, &buf);
|
jbe@140
|
356 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
357 lua_rawgeti(L, 5, i);
|
jbe@140
|
358 luaL_addvalue(&buf);
|
jbe@140
|
359 }
|
jbe@140
|
360 luaL_pushresult(&buf);
|
jbe@140
|
361 }
|
jbe@143
|
362 lua_pushvalue(L, -2);
|
jbe@143
|
363 return 2;
|
jbe@140
|
364 }
|
jbe@140
|
365
|
jbe@140
|
366 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
367 lua_settop(L, 4);
|
jbe@140
|
368 lua_pushnil(L);
|
jbe@140
|
369 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
370 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
371 #else
|
jbe@140
|
372 return moonbr_io_read_cont(L);
|
jbe@140
|
373 #endif
|
jbe@140
|
374 }
|
jbe@140
|
375
|
jbe@145
|
376 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
|
jbe@140
|
377
|
jbe@144
|
378 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
379 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
380 #else
|
jbe@144
|
381 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
382 #endif
|
jbe@144
|
383 lua_Integer remaining, len;
|
jbe@144
|
384 size_t totallen = 0;
|
jbe@144
|
385 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
386 int ctx = 0;
|
jbe@144
|
387 lua_getctx(L, &ctx);
|
jbe@144
|
388 #endif
|
jbe@144
|
389 remaining = lua_tointeger(L, 3);
|
jbe@144
|
390 while (1) {
|
jbe@144
|
391 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
392 lua_pushvalue(L, 1);
|
jbe@144
|
393 lua_pushvalue(L, 3);
|
jbe@144
|
394 lua_pushvalue(L, 4);
|
jbe@144
|
395 lua_call(L, 3, 2);
|
jbe@144
|
396 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
397 lua_insert(L, -2);
|
jbe@144
|
398 len = lua_tointeger(L, -1);
|
jbe@144
|
399 lua_pop(L, 1);
|
jbe@144
|
400 totallen += len;
|
jbe@144
|
401 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
402 lua_pop(L, 1);
|
jbe@144
|
403 if (remaining >= 0 && len) {
|
jbe@144
|
404 remaining -= len;
|
jbe@144
|
405 lua_pushinteger(L, remaining);
|
jbe@144
|
406 lua_replace(L, 3);
|
jbe@144
|
407 }
|
jbe@144
|
408 lua_pushvalue(L, 2);
|
jbe@152
|
409 lua_callk(L, 0, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
410 }
|
jbe@144
|
411 lua_pushinteger(L, totallen);
|
jbe@144
|
412 lua_pushvalue(L, -2);
|
jbe@144
|
413 return 2;
|
jbe@144
|
414 }
|
jbe@144
|
415
|
jbe@144
|
416 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
417 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
418 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
419 #else
|
jbe@144
|
420 return moonbr_io_drain_cont(L);
|
jbe@144
|
421 #endif
|
jbe@144
|
422 }
|
jbe@144
|
423
|
jbe@145
|
424 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
|
jbe@144
|
425
|
jbe@81
|
426 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
427 moonbr_io_handle_t *handle;
|
jbe@80
|
428 int i, top;
|
jbe@80
|
429 const char *str;
|
jbe@92
|
430 size_t strlen;
|
jbe@103
|
431 ssize_t written;
|
jbe@80
|
432 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
433 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
434 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
435 if (handle->writeerr) {
|
jbe@80
|
436 lua_pushnil(L);
|
jbe@80
|
437 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
438 return 2;
|
jbe@80
|
439 }
|
jbe@103
|
440 handle->writeerr = 1;
|
jbe@81
|
441 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
442 top = lua_gettop(L);
|
jbe@81
|
443 lua_getuservalue(L, 1);
|
jbe@103
|
444 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
445 for (i=2; i<=top; i++) {
|
jbe@84
|
446 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
447 lua_pushvalue(L, i);
|
jbe@84
|
448 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
449 handle->writeleft += strlen;
|
jbe@81
|
450 }
|
jbe@132
|
451 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
452 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
453 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
454 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
455 while (handle->writeqoff < strlen) {
|
jbe@103
|
456 if (
|
jbe@132
|
457 strlen - handle->writeqoff <
|
jbe@103
|
458 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
459 ) {
|
jbe@103
|
460 memcpy(
|
jbe@103
|
461 handle->writebuf + handle->writebufin,
|
jbe@103
|
462 str + handle->writeqoff,
|
jbe@103
|
463 strlen - handle->writeqoff
|
jbe@103
|
464 );
|
jbe@103
|
465 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
466 break;
|
jbe@80
|
467 } else {
|
jbe@103
|
468 memcpy(
|
jbe@103
|
469 handle->writebuf + handle->writebufin,
|
jbe@103
|
470 str + handle->writeqoff,
|
jbe@103
|
471 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
472 );
|
jbe@103
|
473 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@103
|
474 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@133
|
475 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
476 written = write(
|
jbe@103
|
477 handle->fd,
|
jbe@103
|
478 handle->writebuf + handle->writebufout,
|
jbe@103
|
479 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
480 );
|
jbe@103
|
481 if (written < 0) {
|
jbe@81
|
482 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
483 goto moonbr_io_write_impl_block;
|
jbe@81
|
484 } else if (errno != EINTR) {
|
jbe@80
|
485 moonbr_io_errmsg();
|
jbe@80
|
486 lua_pushnil(L);
|
jbe@80
|
487 lua_pushstring(L, errmsg);
|
jbe@80
|
488 return 2;
|
jbe@80
|
489 }
|
jbe@103
|
490 } else {
|
jbe@103
|
491 handle->writebufout += written;
|
jbe@103
|
492 handle->writeleft -= written;
|
jbe@133
|
493 if (handle->flushedleft) {
|
jbe@133
|
494 if (written >= handle->flushedleft) {
|
jbe@133
|
495 handle->flushedleft = 0;
|
jbe@133
|
496 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
497 } else {
|
jbe@133
|
498 handle->flushedleft -= written;
|
jbe@133
|
499 }
|
jbe@133
|
500 }
|
jbe@80
|
501 }
|
jbe@80
|
502 }
|
jbe@103
|
503 handle->writebufin = 0;
|
jbe@103
|
504 handle->writebufout = 0;
|
jbe@80
|
505 }
|
jbe@80
|
506 }
|
jbe@81
|
507 handle->writeqoff = 0;
|
jbe@81
|
508 lua_pop(L, 1);
|
jbe@81
|
509 lua_pushnil(L);
|
jbe@83
|
510 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
511 }
|
jbe@132
|
512 while (handle->flushedleft) {
|
jbe@133
|
513 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@132
|
514 written = write(
|
jbe@132
|
515 handle->fd,
|
jbe@132
|
516 handle->writebuf + handle->writebufout,
|
jbe@132
|
517 handle->writebufin - handle->writebufout
|
jbe@132
|
518 );
|
jbe@132
|
519 if (written < 0) {
|
jbe@132
|
520 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
521 goto moonbr_io_write_impl_block;
|
jbe@132
|
522 } else if (errno != EINTR) {
|
jbe@132
|
523 moonbr_io_errmsg();
|
jbe@132
|
524 lua_pushnil(L);
|
jbe@132
|
525 lua_pushstring(L, errmsg);
|
jbe@132
|
526 return 2;
|
jbe@81
|
527 }
|
jbe@132
|
528 } else {
|
jbe@132
|
529 handle->writebufout += written;
|
jbe@132
|
530 handle->writeleft -= written;
|
jbe@133
|
531 if (handle->flushedleft) {
|
jbe@133
|
532 if (written >= handle->flushedleft) {
|
jbe@133
|
533 handle->flushedleft = 0;
|
jbe@133
|
534 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
535 } else {
|
jbe@133
|
536 handle->flushedleft -= written;
|
jbe@133
|
537 }
|
jbe@133
|
538 }
|
jbe@81
|
539 }
|
jbe@132
|
540 }
|
jbe@132
|
541 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
542 handle->writebufin = 0;
|
jbe@103
|
543 handle->writebufout = 0;
|
jbe@81
|
544 }
|
jbe@103
|
545 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
546 else lua_pushvalue(L, 1);
|
jbe@103
|
547 handle->writeerr = 0;
|
jbe@80
|
548 return 1;
|
jbe@81
|
549 moonbr_io_write_impl_block:
|
jbe@91
|
550 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
551 handle->writeerr = 0;
|
jbe@81
|
552 return 1;
|
jbe@81
|
553 }
|
jbe@81
|
554
|
jbe@81
|
555 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
556 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
557 }
|
jbe@81
|
558
|
jbe@81
|
559 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
560 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
561 }
|
jbe@80
|
562
|
jbe@80
|
563 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
564 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
565 }
|
jbe@81
|
566
|
jbe@81
|
567 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
568 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
569 }
|
jbe@80
|
570
|
jbe@145
|
571 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
572 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@145
|
573 #else
|
jbe@145
|
574 static int moonbr_io_write_cont(lua_State *L) {
|
jbe@145
|
575 #endif
|
jbe@145
|
576 while (1) {
|
jbe@145
|
577 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
578 lua_pushvalue(L, 1);
|
jbe@145
|
579 lua_call(L, 1, 2);
|
jbe@145
|
580 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
581 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
582 lua_pushvalue(L, 1);
|
jbe@145
|
583 return 1;
|
jbe@145
|
584 }
|
jbe@145
|
585 lua_pop(L, 2);
|
jbe@145
|
586 lua_pushvalue(L, 2);
|
jbe@152
|
587 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
|
jbe@145
|
588 }
|
jbe@145
|
589 }
|
jbe@145
|
590
|
jbe@145
|
591 static int moonbr_io_write_call(lua_State *L) {
|
jbe@145
|
592 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
593 lua_insert(L, 3);
|
jbe@145
|
594 lua_pushvalue(L, 1);
|
jbe@145
|
595 lua_insert(L, 4);
|
jbe@145
|
596 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
597 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
598 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
599 lua_pushvalue(L, 1);
|
jbe@145
|
600 return 1;
|
jbe@145
|
601 }
|
jbe@145
|
602 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
603 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
604 #else
|
jbe@145
|
605 return moonbr_io_write_cont(L);
|
jbe@145
|
606 #endif
|
jbe@145
|
607 }
|
jbe@145
|
608
|
jbe@145
|
609 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
|
jbe@145
|
610
|
jbe@145
|
611 static int moonbr_io_flush_call(lua_State *L) {
|
jbe@145
|
612 lua_pushcfunction(L, moonbr_io_flush_nb);
|
jbe@145
|
613 lua_insert(L, 3);
|
jbe@145
|
614 lua_pushvalue(L, 1);
|
jbe@145
|
615 lua_insert(L, 4);
|
jbe@145
|
616 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
617 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
618 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
619 lua_pushvalue(L, 1);
|
jbe@145
|
620 return 1;
|
jbe@145
|
621 }
|
jbe@145
|
622 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
623 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
624 #else
|
jbe@145
|
625 return moonbr_io_write_cont(L);
|
jbe@145
|
626 #endif
|
jbe@145
|
627 }
|
jbe@145
|
628
|
jbe@145
|
629 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
|
jbe@145
|
630
|
jbe@88
|
631 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
632 moonbr_io_handle_t *handle;
|
jbe@88
|
633 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
634 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
635 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
636 if (handle->writeleft) {
|
jbe@94
|
637 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
638 lua_pushvalue(L, 1);
|
jbe@116
|
639 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
640 handle->finished = 1;
|
jbe@116
|
641 lua_error(L);
|
jbe@116
|
642 }
|
jbe@94
|
643 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
644 handle->finished = 1;
|
jbe@94
|
645 return 2;
|
jbe@88
|
646 }
|
jbe@94
|
647 }
|
jbe@94
|
648 handle->finished = 1;
|
jbe@107
|
649 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@88
|
650 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
651 moonbr_io_errmsg();
|
jbe@88
|
652 lua_pushnil(L);
|
jbe@88
|
653 lua_pushstring(L, errmsg);
|
jbe@88
|
654 return 2;
|
jbe@88
|
655 }
|
jbe@94
|
656 } else {
|
jbe@94
|
657 if (close(handle->fd)) {
|
jbe@94
|
658 moonbr_io_errmsg();
|
jbe@94
|
659 handle->fd = -1;
|
jbe@94
|
660 lua_pushnil(L);
|
jbe@94
|
661 lua_pushstring(L, errmsg);
|
jbe@94
|
662 return 2;
|
jbe@94
|
663 }
|
jbe@94
|
664 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
665 }
|
jbe@88
|
666 lua_pushboolean(L, 1);
|
jbe@88
|
667 return 1;
|
jbe@88
|
668 }
|
jbe@88
|
669
|
jbe@94
|
670 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
671 moonbr_io_handle_t *handle;
|
jbe@83
|
672 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
673 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
674 if (!reset) {
|
jbe@87
|
675 if (handle->writeleft) {
|
jbe@87
|
676 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
677 lua_pushvalue(L, 1);
|
jbe@116
|
678 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
679 handle->closed = 1;
|
jbe@116
|
680 close(handle->fd);
|
jbe@116
|
681 handle->fd = -1;
|
jbe@116
|
682 lua_error(L);
|
jbe@116
|
683 }
|
jbe@129
|
684 handle->closed = 1;
|
jbe@87
|
685 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
686 close(handle->fd);
|
jbe@87
|
687 handle->fd = -1;
|
jbe@87
|
688 return 2;
|
jbe@87
|
689 }
|
jbe@129
|
690 } else {
|
jbe@129
|
691 handle->closed = 1;
|
jbe@129
|
692 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
693 }
|
jbe@129
|
694 } else {
|
jbe@129
|
695 handle->closed = 1;
|
jbe@83
|
696 }
|
jbe@94
|
697 if (handle->fd >= 0) {
|
jbe@94
|
698 if (close(handle->fd)) {
|
jbe@94
|
699 moonbr_io_errmsg();
|
jbe@94
|
700 handle->fd = -1;
|
jbe@94
|
701 lua_pushnil(L);
|
jbe@94
|
702 lua_pushstring(L, errmsg);
|
jbe@94
|
703 return 2;
|
jbe@94
|
704 }
|
jbe@104
|
705 handle->fd = -1;
|
jbe@83
|
706 }
|
jbe@83
|
707 lua_pushboolean(L, 1);
|
jbe@83
|
708 return 1;
|
jbe@84
|
709
|
jbe@83
|
710 }
|
jbe@83
|
711
|
jbe@94
|
712 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
713 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
714 }
|
jbe@94
|
715
|
jbe@84
|
716 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
717 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
718 }
|
jbe@84
|
719
|
jbe@108
|
720 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
721 moonbr_io_handle_t *handle;
|
jbe@88
|
722 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
723 if (handle->fd >= 0) {
|
jbe@88
|
724 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
725 lua_pushvalue(L, 1);
|
jbe@88
|
726 lua_pushinteger(L, 0);
|
jbe@88
|
727 lua_call(L, 2, 0);
|
jbe@88
|
728 }
|
jbe@88
|
729 return 0;
|
jbe@88
|
730 }
|
jbe@88
|
731
|
jbe@100
|
732 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
733 moonbr_io_handle_t *handle;
|
jbe@88
|
734 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
735 if (!handle->closed) {
|
jbe@100
|
736 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
737 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
738 lua_call(L, 1, 0);
|
jbe@88
|
739 }
|
jbe@88
|
740 }
|
jbe@88
|
741
|
jbe@208
|
742 static int moonbr_io_pushhandle_impl(lua_State *L) {
|
jbe@208
|
743 int *fd;
|
jbe@79
|
744 moonbr_io_handle_t *handle;
|
jbe@107
|
745 struct sockaddr addr;
|
jbe@107
|
746 socklen_t addrlen;
|
jbe@208
|
747 fd = lua_touserdata(L, 1);
|
jbe@79
|
748 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@208
|
749 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@107
|
750 addrlen = sizeof(addr);
|
jbe@208
|
751 if (getsockname(*fd, &addr, &addrlen)) {
|
jbe@107
|
752 if (errno != ENOTSOCK) {
|
jbe@107
|
753 moonbr_io_errmsg();
|
jbe@107
|
754 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
755 }
|
jbe@107
|
756 handle->issock = 0;
|
jbe@107
|
757 } else {
|
jbe@107
|
758 handle->issock = 1;
|
jbe@107
|
759 handle->addrfam = addr.sa_family;
|
jbe@107
|
760 }
|
jbe@94
|
761 handle->finished = 0;
|
jbe@94
|
762 handle->closed = 0;
|
jbe@81
|
763 handle->nonblocking = -1;
|
jbe@95
|
764 handle->nopush = -1;
|
jbe@85
|
765 handle->readerr = 0;
|
jbe@105
|
766 handle->readbufin = 0;
|
jbe@105
|
767 handle->readbufout = 0;
|
jbe@81
|
768 handle->writeerr = 0;
|
jbe@81
|
769 handle->writeleft = 0;
|
jbe@132
|
770 handle->flushedleft = 0;
|
jbe@83
|
771 handle->writeqin = 0;
|
jbe@83
|
772 handle->writeqout = 0;
|
jbe@81
|
773 handle->writeqoff = 0;
|
jbe@103
|
774 handle->writebufin = 0;
|
jbe@103
|
775 handle->writebufout = 0;
|
jbe@208
|
776 handle->fd = *fd; /* required for set_linger call */
|
jbe@87
|
777 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@208
|
778 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@79
|
779 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
780 lua_setmetatable(L, -2);
|
jbe@79
|
781 lua_newtable(L); // uservalue
|
jbe@81
|
782 lua_newtable(L);
|
jbe@103
|
783 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
784 lua_newtable(L); // public
|
jbe@107
|
785 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
786 struct sockaddr_in6 addr_in6;
|
jbe@107
|
787 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
788 const char *addrstr;
|
jbe@107
|
789 addrlen = sizeof(addr_in6);
|
jbe@208
|
790 if (getsockname(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
791 moonbr_io_errmsg();
|
jbe@107
|
792 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
793 }
|
jbe@107
|
794 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
795 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
796 }
|
jbe@107
|
797 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
798 if (!addrstr) {
|
jbe@107
|
799 moonbr_io_errmsg();
|
jbe@107
|
800 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
801 } else {
|
jbe@107
|
802 lua_pushstring(L, addrstr);
|
jbe@107
|
803 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
804 }
|
jbe@107
|
805 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
806 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
807 if (getpeername(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
808 moonbr_io_errmsg();
|
jbe@107
|
809 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
810 }
|
jbe@107
|
811 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
812 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
813 }
|
jbe@107
|
814 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
815 if (!addrstr) {
|
jbe@107
|
816 moonbr_io_errmsg();
|
jbe@107
|
817 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
818 } else {
|
jbe@107
|
819 lua_pushstring(L, addrstr);
|
jbe@107
|
820 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
821 }
|
jbe@107
|
822 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
823 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
824 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
825 struct sockaddr_in addr_in;
|
jbe@107
|
826 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
827 const char *addrstr;
|
jbe@107
|
828 addrlen = sizeof(addr_in);
|
jbe@208
|
829 if (getsockname(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
830 moonbr_io_errmsg();
|
jbe@107
|
831 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
832 }
|
jbe@107
|
833 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
834 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
835 }
|
jbe@107
|
836 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
837 if (!addrstr) {
|
jbe@107
|
838 moonbr_io_errmsg();
|
jbe@107
|
839 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
840 } else {
|
jbe@107
|
841 lua_pushstring(L, addrstr);
|
jbe@107
|
842 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
843 }
|
jbe@107
|
844 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
845 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
846 if (getpeername(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
847 moonbr_io_errmsg();
|
jbe@107
|
848 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
849 }
|
jbe@107
|
850 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
851 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
852 }
|
jbe@107
|
853 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
854 if (!addrstr) {
|
jbe@107
|
855 moonbr_io_errmsg();
|
jbe@107
|
856 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
857 } else {
|
jbe@107
|
858 lua_pushstring(L, addrstr);
|
jbe@107
|
859 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
860 }
|
jbe@107
|
861 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
862 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
863 }
|
jbe@79
|
864 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
865 lua_setmetatable(L, -2);
|
jbe@79
|
866 lua_setfield(L, -2, "public");
|
jbe@79
|
867 lua_setuservalue(L, -2);
|
jbe@208
|
868 handle->fd = *fd;
|
jbe@208
|
869 *fd = -1; /* closing is now handled by garbage collection */
|
jbe@208
|
870 return 1;
|
jbe@208
|
871 }
|
jbe@208
|
872
|
jbe@208
|
873 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@208
|
874 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
875 lua_pushlightuserdata(L, &fd);
|
jbe@208
|
876 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
877 if (fd != -1) close(fd);
|
jbe@208
|
878 lua_error(L);
|
jbe@208
|
879 }
|
jbe@79
|
880 }
|
jbe@79
|
881
|
jbe@79
|
882 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
883 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
884 luaL_checkany(L, 2);
|
jbe@79
|
885 lua_getuservalue(L, 1);
|
jbe@79
|
886 lua_getfield(L, -1, "public");
|
jbe@79
|
887 lua_pushvalue(L, 2);
|
jbe@79
|
888 lua_gettable(L, -2);
|
jbe@79
|
889 return 1;
|
jbe@79
|
890 }
|
jbe@79
|
891
|
jbe@79
|
892 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
893 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
894 luaL_checkany(L, 2);
|
jbe@205
|
895 luaL_checkany(L, 3);
|
jbe@79
|
896 lua_getuservalue(L, 1);
|
jbe@79
|
897 lua_getfield(L, -1, "public");
|
jbe@79
|
898 lua_pushvalue(L, 2);
|
jbe@79
|
899 lua_pushvalue(L, 3);
|
jbe@79
|
900 lua_settable(L, -3);
|
jbe@79
|
901 return 0;
|
jbe@79
|
902 }
|
jbe@79
|
903
|
jbe@111
|
904 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
905 const char *path;
|
jbe@111
|
906 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
907 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
908 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
909 ) - 1; /* one byte for termination */
|
jbe@111
|
910 int sock;
|
jbe@111
|
911 path = luaL_checkstring(L, 1);
|
jbe@111
|
912 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
913 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
914 sock = socket(
|
jbe@111
|
915 PF_LOCAL,
|
jbe@111
|
916 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
917 0
|
jbe@111
|
918 );
|
jbe@111
|
919 if (sock < 0) {
|
jbe@111
|
920 moonbr_io_errmsg();
|
jbe@111
|
921 lua_pushnil(L);
|
jbe@111
|
922 lua_pushstring(L, errmsg);
|
jbe@111
|
923 return 2;
|
jbe@111
|
924 }
|
jbe@111
|
925 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
926 if (!nonblocking && errno == EINTR) {
|
jbe@111
|
927 moonbr_io_errmsg();
|
jbe@111
|
928 close(sock);
|
jbe@111
|
929 lua_pushnil(L);
|
jbe@111
|
930 lua_pushstring(L, errmsg);
|
jbe@111
|
931 return 2;
|
jbe@111
|
932 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@111
|
933 moonbr_io_errmsg();
|
jbe@111
|
934 lua_pushnil(L);
|
jbe@111
|
935 lua_pushstring(L, errmsg);
|
jbe@111
|
936 return 2;
|
jbe@111
|
937 }
|
jbe@111
|
938 }
|
jbe@111
|
939 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
940 return 1;
|
jbe@111
|
941 }
|
jbe@111
|
942
|
jbe@111
|
943 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
944 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
945 }
|
jbe@111
|
946
|
jbe@111
|
947 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
948 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
949 }
|
jbe@111
|
950
|
jbe@99
|
951 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
952 const char *host, *port;
|
jbe@98
|
953 struct addrinfo hints = { 0, };
|
jbe@98
|
954 struct addrinfo *res, *addrinfo;
|
jbe@98
|
955 int errcode;
|
jbe@98
|
956 int sock;
|
jbe@98
|
957 host = luaL_checkstring(L, 1);
|
jbe@98
|
958 port = luaL_checkstring(L, 2);
|
jbe@98
|
959 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
960 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
961 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
962 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
963 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
964 if (errcode) {
|
jbe@102
|
965 freeaddrinfo(res);
|
jbe@98
|
966 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
967 moonbr_io_errmsg();
|
jbe@98
|
968 lua_pushnil(L);
|
jbe@98
|
969 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
970 } else {
|
jbe@98
|
971 lua_pushnil(L);
|
jbe@98
|
972 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
973 }
|
jbe@98
|
974 return 2;
|
jbe@98
|
975 }
|
jbe@98
|
976 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
977 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
978 }
|
jbe@98
|
979 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
980 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
981 }
|
jbe@98
|
982 addrinfo = res;
|
jbe@98
|
983 moonbr_io_tcpconnect_found:
|
jbe@99
|
984 sock = socket(
|
jbe@134
|
985 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
986 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
987 addrinfo->ai_protocol
|
jbe@99
|
988 );
|
jbe@98
|
989 if (sock < 0) {
|
jbe@98
|
990 moonbr_io_errmsg();
|
jbe@108
|
991 freeaddrinfo(res);
|
jbe@98
|
992 lua_pushnil(L);
|
jbe@98
|
993 lua_pushstring(L, errmsg);
|
jbe@108
|
994 return 2;
|
jbe@98
|
995 }
|
jbe@98
|
996 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
997 freeaddrinfo(res);
|
jbe@99
|
998 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
999 moonbr_io_errmsg();
|
jbe@99
|
1000 close(sock);
|
jbe@99
|
1001 lua_pushnil(L);
|
jbe@99
|
1002 lua_pushstring(L, errmsg);
|
jbe@99
|
1003 return 2;
|
jbe@99
|
1004 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
1005 moonbr_io_errmsg();
|
jbe@99
|
1006 lua_pushnil(L);
|
jbe@99
|
1007 lua_pushstring(L, errmsg);
|
jbe@99
|
1008 return 2;
|
jbe@99
|
1009 }
|
jbe@108
|
1010 } else {
|
jbe@108
|
1011 freeaddrinfo(res);
|
jbe@98
|
1012 }
|
jbe@107
|
1013 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
1014 return 1;
|
jbe@98
|
1015 }
|
jbe@98
|
1016
|
jbe@99
|
1017 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
1018 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
1019 }
|
jbe@99
|
1020
|
jbe@99
|
1021 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
1022 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
1023 }
|
jbe@99
|
1024
|
jbe@112
|
1025 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
1026 moonbr_io_listener_t *listener;
|
jbe@112
|
1027 const char *path;
|
jbe@118
|
1028 struct stat sb;
|
jbe@112
|
1029 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
1030 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
1031 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
1032 ) - 1; /* one byte for termination */
|
jbe@112
|
1033 int sock;
|
jbe@112
|
1034 path = luaL_checkstring(L, 1);
|
jbe@112
|
1035 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
1036 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
1037 if (stat(path, &sb) == 0) {
|
jbe@118
|
1038 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
1039 }
|
jbe@112
|
1040 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1041 listener->fd = -1;
|
jbe@112
|
1042 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
1043 sock = socket(
|
jbe@112
|
1044 PF_LOCAL,
|
jbe@112
|
1045 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
1046 0
|
jbe@112
|
1047 );
|
jbe@112
|
1048 if (sock < 0) {
|
jbe@112
|
1049 moonbr_io_errmsg();
|
jbe@112
|
1050 lua_pushnil(L);
|
jbe@112
|
1051 lua_pushstring(L, errmsg);
|
jbe@112
|
1052 return 2;
|
jbe@112
|
1053 }
|
jbe@112
|
1054 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@112
|
1055 moonbr_io_errmsg();
|
jbe@112
|
1056 close(sock);
|
jbe@112
|
1057 lua_pushnil(L);
|
jbe@112
|
1058 lua_pushstring(L, errmsg);
|
jbe@112
|
1059 return 2;
|
jbe@112
|
1060 }
|
jbe@112
|
1061 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@112
|
1062 moonbr_io_errmsg();
|
jbe@112
|
1063 close(sock);
|
jbe@112
|
1064 lua_pushnil(L);
|
jbe@112
|
1065 lua_pushstring(L, errmsg);
|
jbe@112
|
1066 return 2;
|
jbe@112
|
1067 }
|
jbe@112
|
1068 listener->fd = sock;
|
jbe@118
|
1069 listener->addrfam = AF_LOCAL;
|
jbe@112
|
1070 listener->nonblocking = -1;
|
jbe@112
|
1071 return 1;
|
jbe@112
|
1072 }
|
jbe@112
|
1073
|
jbe@108
|
1074 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
1075 moonbr_io_listener_t *listener;
|
jbe@108
|
1076 const char *host, *port;
|
jbe@108
|
1077 struct addrinfo hints = { 0, };
|
jbe@108
|
1078 struct addrinfo *res, *addrinfo;
|
jbe@108
|
1079 int errcode;
|
jbe@108
|
1080 int sock;
|
jbe@108
|
1081 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1082 port = luaL_checkstring(L, 2);
|
jbe@108
|
1083 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1084 listener->fd = -1;
|
jbe@108
|
1085 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1086 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1087 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1088 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1089 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1090 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1091 if (errcode) {
|
jbe@108
|
1092 freeaddrinfo(res);
|
jbe@108
|
1093 if (errcode == EAI_SYSTEM) {
|
jbe@108
|
1094 moonbr_io_errmsg();
|
jbe@108
|
1095 lua_pushnil(L);
|
jbe@108
|
1096 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1097 } else {
|
jbe@108
|
1098 lua_pushnil(L);
|
jbe@108
|
1099 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1100 }
|
jbe@108
|
1101 return 2;
|
jbe@108
|
1102 }
|
jbe@108
|
1103 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1104 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1105 }
|
jbe@108
|
1106 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1107 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1108 }
|
jbe@108
|
1109 addrinfo = res;
|
jbe@108
|
1110 moonbr_io_tcpconnect_found:
|
jbe@118
|
1111 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1112 sock = socket(
|
jbe@134
|
1113 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1114 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1115 addrinfo->ai_protocol
|
jbe@108
|
1116 );
|
jbe@108
|
1117 if (sock < 0) {
|
jbe@108
|
1118 moonbr_io_errmsg();
|
jbe@108
|
1119 freeaddrinfo(res);
|
jbe@108
|
1120 lua_pushnil(L);
|
jbe@108
|
1121 lua_pushstring(L, errmsg);
|
jbe@108
|
1122 return 2;
|
jbe@108
|
1123 }
|
jbe@120
|
1124 {
|
jbe@120
|
1125 static const int reuseval = 1;
|
jbe@120
|
1126 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@120
|
1127 moonbr_io_errmsg();
|
jbe@120
|
1128 freeaddrinfo(res);
|
jbe@120
|
1129 close(sock);
|
jbe@120
|
1130 lua_pushnil(L);
|
jbe@120
|
1131 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1132 return 2;
|
jbe@120
|
1133 }
|
jbe@120
|
1134 }
|
jbe@108
|
1135 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1136 moonbr_io_errmsg();
|
jbe@108
|
1137 freeaddrinfo(res);
|
jbe@108
|
1138 close(sock);
|
jbe@108
|
1139 lua_pushnil(L);
|
jbe@108
|
1140 lua_pushstring(L, errmsg);
|
jbe@108
|
1141 return 2;
|
jbe@108
|
1142 }
|
jbe@108
|
1143 freeaddrinfo(res);
|
jbe@108
|
1144 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@108
|
1145 moonbr_io_errmsg();
|
jbe@108
|
1146 close(sock);
|
jbe@108
|
1147 lua_pushnil(L);
|
jbe@108
|
1148 lua_pushstring(L, errmsg);
|
jbe@108
|
1149 return 2;
|
jbe@108
|
1150 }
|
jbe@108
|
1151 listener->fd = sock;
|
jbe@108
|
1152 listener->nonblocking = -1;
|
jbe@108
|
1153 return 1;
|
jbe@108
|
1154 }
|
jbe@108
|
1155
|
jbe@108
|
1156 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1157 moonbr_io_listener_t *listener;
|
jbe@108
|
1158 int fd;
|
jbe@108
|
1159 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1160 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1161 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1162 int flags;
|
jbe@108
|
1163 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1164 if (flags == -1) {
|
jbe@108
|
1165 moonbr_io_errmsg();
|
jbe@108
|
1166 close(listener->fd);
|
jbe@108
|
1167 listener->fd = -1;
|
jbe@108
|
1168 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1169 }
|
jbe@108
|
1170 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1171 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1172 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@108
|
1173 moonbr_io_errmsg();
|
jbe@108
|
1174 close(listener->fd);
|
jbe@108
|
1175 listener->fd = -1;
|
jbe@108
|
1176 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1177 }
|
jbe@108
|
1178 listener->nonblocking = nonblocking;
|
jbe@108
|
1179 }
|
jbe@108
|
1180 while (1) {
|
jbe@108
|
1181 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@108
|
1182 if (fd < 0) {
|
jbe@108
|
1183 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1184 lua_pushboolean(L, 0);
|
jbe@108
|
1185 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1186 return 2;
|
jbe@108
|
1187 } else if (errno != EINTR) {
|
jbe@108
|
1188 moonbr_io_errmsg();
|
jbe@108
|
1189 lua_pushnil(L);
|
jbe@108
|
1190 lua_pushstring(L, errmsg);
|
jbe@108
|
1191 return 2;
|
jbe@108
|
1192 }
|
jbe@108
|
1193 } else {
|
jbe@108
|
1194 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1195 return 1;
|
jbe@108
|
1196 }
|
jbe@108
|
1197 }
|
jbe@108
|
1198 }
|
jbe@108
|
1199
|
jbe@108
|
1200 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1201 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1202 }
|
jbe@108
|
1203
|
jbe@108
|
1204 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1205 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1206 }
|
jbe@108
|
1207
|
jbe@108
|
1208 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1209 moonbr_io_listener_t *listener;
|
jbe@118
|
1210 struct sockaddr_un addr;
|
jbe@118
|
1211 socklen_t addrlen;
|
jbe@118
|
1212 struct stat sb;
|
jbe@108
|
1213 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1214 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1215 addrlen = sizeof(addr);
|
jbe@118
|
1216 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1217 if (close(listener->fd)) {
|
jbe@108
|
1218 moonbr_io_errmsg();
|
jbe@108
|
1219 listener->fd = -1;
|
jbe@118
|
1220 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1221 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1222 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1223 }
|
jbe@118
|
1224 }
|
jbe@108
|
1225 lua_pushnil(L);
|
jbe@108
|
1226 lua_pushstring(L, errmsg);
|
jbe@108
|
1227 return 2;
|
jbe@108
|
1228 }
|
jbe@108
|
1229 listener->fd = -1;
|
jbe@118
|
1230 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1231 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1232 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1233 }
|
jbe@118
|
1234 }
|
jbe@108
|
1235 lua_pushboolean(L, 1);
|
jbe@108
|
1236 return 1;
|
jbe@108
|
1237 }
|
jbe@108
|
1238
|
jbe@108
|
1239 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1240 moonbr_io_listener_t *listener;
|
jbe@108
|
1241 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1242 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1243 listener->fd = -1;
|
jbe@108
|
1244 return 0;
|
jbe@108
|
1245 }
|
jbe@108
|
1246
|
jbe@205
|
1247 static int moonbr_io_exec(lua_State *L) {
|
jbe@205
|
1248 char **argv;
|
jbe@205
|
1249 int i, argc;
|
jbe@205
|
1250 int sockin[2], sockout[2], sockerr[2];
|
jbe@205
|
1251 volatile int errorcond = 0;
|
jbe@205
|
1252 volatile char errmsgbuf[MOONBR_IO_MAXSTRERRORLEN];
|
jbe@205
|
1253 moonbr_io_child_t *child;
|
jbe@205
|
1254 argc = lua_gettop(L);
|
jbe@205
|
1255 argv = lua_newuserdata(L, (argc + 1) * sizeof(char *));
|
jbe@205
|
1256 for (i=0; i<argc; i++) argv[i] = (char *)luaL_checkstring(L, i+1);
|
jbe@205
|
1257 argv[argc] = NULL;
|
jbe@208
|
1258 child = lua_newuserdata(L, sizeof(moonbr_io_child_t));
|
jbe@208
|
1259 child->pid = 0;
|
jbe@208
|
1260 lua_newtable(L);
|
jbe@208
|
1261 lua_setuservalue(L, -2);
|
jbe@208
|
1262 luaL_getmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@208
|
1263 lua_setmetatable(L, -2);
|
jbe@206
|
1264 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
|
jbe@205
|
1265 moonbr_io_errmsg();
|
jbe@205
|
1266 lua_pushnil(L);
|
jbe@205
|
1267 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1268 return 2;
|
jbe@205
|
1269 }
|
jbe@206
|
1270 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockout)) {
|
jbe@205
|
1271 moonbr_io_errmsg();
|
jbe@205
|
1272 close(sockin[0]);
|
jbe@205
|
1273 close(sockin[1]);
|
jbe@205
|
1274 lua_pushnil(L);
|
jbe@205
|
1275 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1276 return 2;
|
jbe@205
|
1277 }
|
jbe@206
|
1278 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockerr)) {
|
jbe@205
|
1279 moonbr_io_errmsg();
|
jbe@205
|
1280 close(sockin[0]);
|
jbe@205
|
1281 close(sockin[1]);
|
jbe@205
|
1282 close(sockout[0]);
|
jbe@205
|
1283 close(sockout[1]);
|
jbe@205
|
1284 lua_pushnil(L);
|
jbe@205
|
1285 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1286 return 2;
|
jbe@205
|
1287 }
|
jbe@205
|
1288 child->pid = vfork();
|
jbe@205
|
1289 if (child->pid == -1) {
|
jbe@205
|
1290 moonbr_io_errmsg();
|
jbe@205
|
1291 close(sockin[0]);
|
jbe@205
|
1292 close(sockin[1]);
|
jbe@205
|
1293 close(sockout[0]);
|
jbe@205
|
1294 close(sockout[1]);
|
jbe@205
|
1295 close(sockerr[0]);
|
jbe@205
|
1296 close(sockerr[1]);
|
jbe@205
|
1297 lua_pushnil(L);
|
jbe@205
|
1298 lua_pushfstring(L, "Could not fork: %s", errmsg);
|
jbe@205
|
1299 return 2;
|
jbe@205
|
1300 }
|
jbe@205
|
1301 if (!child->pid) {
|
jbe@208
|
1302 if (dup2(sockin[1], 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1303 if (dup2(sockout[1], 1) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1304 if (dup2(sockerr[1], 2) == -1) goto moonbr_io_exec_error1;
|
jbe@205
|
1305 closefrom(4);
|
jbe@208
|
1306 if (fcntl(0, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1307 if (fcntl(1, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1308 if (fcntl(2, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@205
|
1309 if (execvp(argv[0], argv)) {
|
jbe@205
|
1310 errorcond = 2;
|
jbe@205
|
1311 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@205
|
1312 _exit(0);
|
jbe@205
|
1313 }
|
jbe@208
|
1314 moonbr_io_exec_error1:
|
jbe@206
|
1315 errorcond = 1;
|
jbe@206
|
1316 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@206
|
1317 _exit(0);
|
jbe@205
|
1318 }
|
jbe@205
|
1319 close(sockin[1]);
|
jbe@205
|
1320 close(sockout[1]);
|
jbe@205
|
1321 close(sockerr[1]);
|
jbe@205
|
1322 if (errorcond) {
|
jbe@205
|
1323 int status;
|
jbe@205
|
1324 close(sockin[0]);
|
jbe@205
|
1325 close(sockout[0]);
|
jbe@205
|
1326 close(sockerr[0]);
|
jbe@205
|
1327 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1328 if (errno != EINTR) {
|
jbe@205
|
1329 moonbr_io_errmsg();
|
jbe@205
|
1330 luaL_error(L, "Error in waitpid call after unsuccessful exec: %s", errmsg);
|
jbe@205
|
1331 }
|
jbe@205
|
1332 }
|
jbe@208
|
1333 child->pid = 0;
|
jbe@205
|
1334 lua_pushnil(L);
|
jbe@205
|
1335 if (errorcond == 2) lua_pushfstring(L, "Could not execute: %s", errmsgbuf);
|
jbe@205
|
1336 else lua_pushfstring(L, "Error in fork: %s", errmsgbuf);
|
jbe@205
|
1337 return 2;
|
jbe@205
|
1338 }
|
jbe@208
|
1339 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1340 lua_pushlightuserdata(L, &sockin[0]);
|
jbe@208
|
1341 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1342 if (sockin[0] != -1) close(sockin[0]);
|
jbe@208
|
1343 close(sockout[0]);
|
jbe@208
|
1344 close(sockerr[0]);
|
jbe@208
|
1345 goto moonbr_io_exec_error2;
|
jbe@208
|
1346 }
|
jbe@205
|
1347 lua_setfield(L, -2, "stdin");
|
jbe@208
|
1348 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1349 lua_pushlightuserdata(L, &sockout[0]);
|
jbe@208
|
1350 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1351 if (sockout[0] != -1) close(sockout[0]);
|
jbe@208
|
1352 close(sockerr[0]);
|
jbe@208
|
1353 goto moonbr_io_exec_error2;
|
jbe@208
|
1354 }
|
jbe@205
|
1355 lua_setfield(L, -2, "stdout");
|
jbe@208
|
1356 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1357 lua_pushlightuserdata(L, &sockerr[0]);
|
jbe@208
|
1358 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1359 if (sockerr[0] != -1) close(sockerr[0]);
|
jbe@208
|
1360 goto moonbr_io_exec_error2;
|
jbe@208
|
1361 }
|
jbe@205
|
1362 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1363 return 1;
|
jbe@208
|
1364 moonbr_io_exec_error2:
|
jbe@208
|
1365 {
|
jbe@208
|
1366 int status;
|
jbe@208
|
1367 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@208
|
1368 if (errno != EINTR) {
|
jbe@208
|
1369 moonbr_io_errmsg();
|
jbe@208
|
1370 luaL_error(L, "Error in waitpid call after error creating socket handles: %s", errmsg);
|
jbe@208
|
1371 }
|
jbe@208
|
1372 }
|
jbe@208
|
1373 }
|
jbe@208
|
1374 child->pid = 0;
|
jbe@208
|
1375 return lua_error(L);
|
jbe@205
|
1376 }
|
jbe@205
|
1377
|
jbe@205
|
1378 static int moonbr_io_childindex(lua_State *L) {
|
jbe@205
|
1379 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1380 luaL_checkany(L, 2);
|
jbe@205
|
1381 lua_getuservalue(L, 1);
|
jbe@205
|
1382 lua_pushvalue(L, 2);
|
jbe@205
|
1383 lua_gettable(L, -2);
|
jbe@205
|
1384 if (lua_isnil(L, -1)) {
|
jbe@205
|
1385 luaL_getmetatable(L, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1386 lua_pushvalue(L, 2);
|
jbe@205
|
1387 lua_gettable(L, -2);
|
jbe@205
|
1388 }
|
jbe@205
|
1389 return 1;
|
jbe@205
|
1390 }
|
jbe@205
|
1391
|
jbe@205
|
1392 static int moonbr_io_childnewindex(lua_State *L) {
|
jbe@205
|
1393 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1394 luaL_checkany(L, 2);
|
jbe@205
|
1395 luaL_checkany(L, 3);
|
jbe@205
|
1396 lua_getuservalue(L, 1);
|
jbe@205
|
1397 lua_pushvalue(L, 2);
|
jbe@205
|
1398 lua_pushvalue(L, 3);
|
jbe@205
|
1399 lua_settable(L, -3);
|
jbe@205
|
1400 return 0;
|
jbe@205
|
1401 }
|
jbe@205
|
1402
|
jbe@205
|
1403 static int moonbr_io_childgc(lua_State *L) {
|
jbe@205
|
1404 moonbr_io_child_t *child;
|
jbe@205
|
1405 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1406 if (child->pid) {
|
jbe@205
|
1407 int status;
|
jbe@205
|
1408 if (kill(child->pid, SIGKILL)) {
|
jbe@205
|
1409 moonbr_io_errmsg();
|
jbe@205
|
1410 luaL_error(L, "Error in kill call during garbage collection: %s", errmsg);
|
jbe@205
|
1411 }
|
jbe@205
|
1412 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1413 if (errno != EINTR) {
|
jbe@205
|
1414 moonbr_io_errmsg();
|
jbe@205
|
1415 luaL_error(L, "Error in waitpid call during garbage collection: %s", errmsg);
|
jbe@205
|
1416 }
|
jbe@205
|
1417 }
|
jbe@205
|
1418 }
|
jbe@205
|
1419 return 0;
|
jbe@205
|
1420 }
|
jbe@205
|
1421
|
jbe@205
|
1422 static int moonbr_io_kill(lua_State *L) {
|
jbe@205
|
1423 moonbr_io_child_t *child;
|
jbe@205
|
1424 int sig;
|
jbe@205
|
1425 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1426 sig = luaL_optinteger(L, 2, SIGTERM);
|
jbe@205
|
1427 if (!child->pid) luaL_error(L, "Attempt to kill an already collected child process");
|
jbe@205
|
1428 if (kill(child->pid, sig)) {
|
jbe@205
|
1429 moonbr_io_errmsg();
|
jbe@205
|
1430 luaL_error(L, "Error in kill call: %s", errmsg);
|
jbe@205
|
1431 }
|
jbe@205
|
1432 lua_settop(L, 1);
|
jbe@205
|
1433 return 1;
|
jbe@205
|
1434 }
|
jbe@205
|
1435
|
jbe@205
|
1436 static int moonbr_io_wait_impl(lua_State *L, int nonblocking) {
|
jbe@205
|
1437 moonbr_io_child_t *child;
|
jbe@205
|
1438 pid_t waitedpid;
|
jbe@205
|
1439 int status;
|
jbe@205
|
1440 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1441 if (!child->pid) luaL_error(L, "Attempt to wait for an already collected child process");
|
jbe@205
|
1442 while ((waitedpid = waitpid(child->pid, &status, nonblocking ? WNOHANG : 0)) == -1) {
|
jbe@205
|
1443 if (errno != EINTR) {
|
jbe@205
|
1444 moonbr_io_errmsg();
|
jbe@205
|
1445 luaL_error(L, "Error in waitpid call: %s", errmsg);
|
jbe@205
|
1446 }
|
jbe@205
|
1447 }
|
jbe@205
|
1448 if (!waitedpid) {
|
jbe@205
|
1449 lua_pushnil(L);
|
jbe@205
|
1450 } else {
|
jbe@205
|
1451 child->pid = 0;
|
jbe@205
|
1452 if (WIFEXITED(status)) {
|
jbe@205
|
1453 lua_pushinteger(L, WEXITSTATUS(status));
|
jbe@205
|
1454 } else if (WIFSIGNALED(status)) {
|
jbe@205
|
1455 lua_pushinteger(L, -WTERMSIG(status));
|
jbe@205
|
1456 } else {
|
jbe@205
|
1457 luaL_error(L, "Unexpected status value returned by waitpid call");
|
jbe@205
|
1458 }
|
jbe@205
|
1459 }
|
jbe@205
|
1460 return 1;
|
jbe@205
|
1461 }
|
jbe@205
|
1462
|
jbe@205
|
1463 static int moonbr_io_wait(lua_State *L) {
|
jbe@205
|
1464 return moonbr_io_wait_impl(L, 0);
|
jbe@205
|
1465 }
|
jbe@205
|
1466
|
jbe@205
|
1467 static int moonbr_io_wait_nb(lua_State *L) {
|
jbe@205
|
1468 return moonbr_io_wait_impl(L, 1);
|
jbe@205
|
1469 }
|
jbe@205
|
1470
|
jbe@205
|
1471 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1472 static int moonbr_io_wait_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@205
|
1473 #else
|
jbe@205
|
1474 static int moonbr_io_wait_cont(lua_State *L) {
|
jbe@205
|
1475 #endif
|
jbe@205
|
1476 #if !(LUA_VERSION_NUM >= 503)
|
jbe@205
|
1477 int ctx = 0;
|
jbe@205
|
1478 lua_getctx(L, &ctx);
|
jbe@205
|
1479 #endif
|
jbe@205
|
1480 while (1) {
|
jbe@205
|
1481 lua_pushcfunction(L, moonbr_io_wait_nb);
|
jbe@205
|
1482 lua_pushvalue(L, 1);
|
jbe@205
|
1483 lua_call(L, 1, 1);
|
jbe@205
|
1484 if (!lua_isnil(L, -1)) break;
|
jbe@205
|
1485 lua_pushvalue(L, 2);
|
jbe@205
|
1486 lua_callk(L, 0, 0, ctx, moonbr_io_wait_cont);
|
jbe@205
|
1487 }
|
jbe@205
|
1488 return 1;
|
jbe@205
|
1489 }
|
jbe@205
|
1490
|
jbe@205
|
1491 static int moonbr_io_wait_call(lua_State *L) {
|
jbe@205
|
1492 lua_settop(L, 2);
|
jbe@205
|
1493 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1494 return moonbr_io_wait_cont(L, 0, 0);
|
jbe@205
|
1495 #else
|
jbe@205
|
1496 return moonbr_io_wait_cont(L);
|
jbe@205
|
1497 #endif
|
jbe@205
|
1498 }
|
jbe@205
|
1499
|
jbe@205
|
1500 moonbr_io_yield_wrapper(moonbr_io_wait_yield, moonbr_io_wait_call);
|
jbe@205
|
1501
|
jbe@106
|
1502 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1503 moonbr_io_handle_t *handle;
|
jbe@108
|
1504 moonbr_io_listener_t *listener;
|
jbe@106
|
1505 int fd, isnum;
|
jbe@106
|
1506 int nfds = 0;
|
jbe@106
|
1507 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
1508 struct timeval timeout = {0, };
|
jbe@106
|
1509 int status;
|
jbe@106
|
1510 FD_ZERO(&readfds);
|
jbe@106
|
1511 FD_ZERO(&writefds);
|
jbe@106
|
1512 FD_ZERO(&exceptfds);
|
jbe@106
|
1513 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1514 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1515 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1516 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1517 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1518 if (handle) {
|
jbe@109
|
1519 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1520 fd = handle->fd;
|
jbe@122
|
1521 if (
|
jbe@122
|
1522 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1523 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1524 ) {
|
jbe@109
|
1525 lua_pushboolean(L, 1);
|
jbe@109
|
1526 return 1;
|
jbe@109
|
1527 }
|
jbe@106
|
1528 } else {
|
jbe@108
|
1529 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1530 if (listener) {
|
jbe@108
|
1531 fd = listener->fd;
|
jbe@108
|
1532 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1533 } else {
|
jbe@108
|
1534 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
1535 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
1536 }
|
jbe@106
|
1537 }
|
jbe@138
|
1538 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1539 FD_SET(fd, &readfds);
|
jbe@106
|
1540 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1541 }
|
jbe@106
|
1542 }
|
jbe@106
|
1543 }
|
jbe@106
|
1544 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
1545 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1546 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1547 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1548 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1549 if (handle) {
|
jbe@109
|
1550 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1551 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1552 fd = handle->fd;
|
jbe@106
|
1553 } else {
|
jbe@108
|
1554 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1555 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1556 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1557 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1558 }
|
jbe@138
|
1559 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1560 FD_SET(fd, &writefds);
|
jbe@106
|
1561 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1562 }
|
jbe@106
|
1563 }
|
jbe@106
|
1564 }
|
jbe@106
|
1565 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1566 lua_Number n;
|
jbe@106
|
1567 n = lua_tonumberx(L, 3, &isnum);
|
jbe@146
|
1568 if (isnum && n<0) {
|
jbe@146
|
1569 lua_pushboolean(L, 0);
|
jbe@146
|
1570 lua_pushliteral(L, "Negative timeout");
|
jbe@146
|
1571 return 2;
|
jbe@146
|
1572 } else if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
1573 timeout.tv_sec = n;
|
jbe@106
|
1574 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
1575 } else {
|
jbe@106
|
1576 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1577 }
|
jbe@106
|
1578 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
1579 } else {
|
jbe@106
|
1580 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
1581 }
|
jbe@106
|
1582 if (status == -1) {
|
jbe@106
|
1583 if (errno == EINTR) {
|
jbe@146
|
1584 lua_pushnil(L);
|
jbe@106
|
1585 lua_pushliteral(L, "Signal received while polling file descriptors");
|
jbe@106
|
1586 return 2;
|
jbe@106
|
1587 } else {
|
jbe@106
|
1588 moonbr_io_errmsg();
|
jbe@106
|
1589 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
1590 }
|
jbe@106
|
1591 } else if (status == 0) {
|
jbe@106
|
1592 lua_pushboolean(L, 0);
|
jbe@106
|
1593 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
1594 return 2;
|
jbe@106
|
1595 } else {
|
jbe@106
|
1596 lua_pushboolean(L, 1);
|
jbe@106
|
1597 return 1;
|
jbe@106
|
1598 }
|
jbe@106
|
1599 }
|
jbe@106
|
1600
|
jbe@115
|
1601 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1602 lua_Number sub;
|
jbe@115
|
1603 struct timespec tp;
|
jbe@115
|
1604 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1605 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1606 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1607 }
|
jbe@115
|
1608 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1609 return 1;
|
jbe@115
|
1610 }
|
jbe@115
|
1611
|
jbe@79
|
1612 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
1613 {"read", moonbr_io_read},
|
jbe@85
|
1614 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
1615 {"read_call", moonbr_io_read_call},
|
jbe@140
|
1616 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
1617 {"drain", moonbr_io_drain},
|
jbe@86
|
1618 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
1619 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
1620 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
1621 {"write", moonbr_io_write},
|
jbe@81
|
1622 {"write_nb", moonbr_io_write_nb},
|
jbe@145
|
1623 {"write_call", moonbr_io_write_call},
|
jbe@145
|
1624 {"write_yield", moonbr_io_write_yield},
|
jbe@80
|
1625 {"flush", moonbr_io_flush},
|
jbe@81
|
1626 {"flush_nb", moonbr_io_flush_nb},
|
jbe@145
|
1627 {"flush_call", moonbr_io_flush_call},
|
jbe@145
|
1628 {"flush_yield", moonbr_io_flush_yield},
|
jbe@88
|
1629 {"finish", moonbr_io_finish},
|
jbe@87
|
1630 {"close", moonbr_io_close},
|
jbe@85
|
1631 {"reset", moonbr_io_reset},
|
jbe@79
|
1632 {NULL, NULL}
|
jbe@79
|
1633 };
|
jbe@79
|
1634
|
jbe@79
|
1635 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1636 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1637 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1638 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1639 {NULL, NULL}
|
jbe@108
|
1640 };
|
jbe@108
|
1641
|
jbe@108
|
1642 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1643 {"accept", moonbr_io_accept},
|
jbe@108
|
1644 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1645 {"close", moonbr_io_unlisten},
|
jbe@108
|
1646 {NULL, NULL}
|
jbe@108
|
1647 };
|
jbe@108
|
1648
|
jbe@108
|
1649 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1650 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1651 {NULL, NULL}
|
jbe@79
|
1652 };
|
jbe@79
|
1653
|
jbe@205
|
1654 static const struct luaL_Reg moonbr_io_child_methods[] = {
|
jbe@205
|
1655 {"kill", moonbr_io_kill},
|
jbe@205
|
1656 {"wait", moonbr_io_wait},
|
jbe@205
|
1657 {"wait_nb", moonbr_io_wait_nb},
|
jbe@205
|
1658 {"wait_call", moonbr_io_wait_call},
|
jbe@205
|
1659 {"wait_yield", moonbr_io_wait_yield},
|
jbe@205
|
1660 {NULL, NULL}
|
jbe@205
|
1661 };
|
jbe@205
|
1662
|
jbe@205
|
1663 static const struct luaL_Reg moonbr_io_child_metamethods[] = {
|
jbe@205
|
1664 {"__index", moonbr_io_childindex},
|
jbe@205
|
1665 {"__newindex", moonbr_io_childnewindex},
|
jbe@205
|
1666 {"__gc", moonbr_io_childgc},
|
jbe@205
|
1667 {NULL, NULL}
|
jbe@205
|
1668 };
|
jbe@205
|
1669
|
jbe@79
|
1670 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1671 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1672 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1673 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1674 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
1675 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
1676 {"tcplisten", moonbr_io_tcplisten},
|
jbe@205
|
1677 {"exec", moonbr_io_exec},
|
jbe@106
|
1678 {"poll", moonbr_io_poll},
|
jbe@115
|
1679 {"timeref", moonbr_io_timeref},
|
jbe@79
|
1680 {NULL, NULL}
|
jbe@79
|
1681 };
|
jbe@79
|
1682
|
jbe@79
|
1683 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
1684
|
jbe@113
|
1685 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@113
|
1686
|
jbe@80
|
1687 lua_newtable(L); // module
|
jbe@80
|
1688
|
jbe@79
|
1689 lua_newtable(L); // public metatable
|
jbe@79
|
1690 lua_newtable(L); // handle methods
|
jbe@79
|
1691 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
1692 lua_pushvalue(L, -1);
|
jbe@146
|
1693 lua_setfield(L, -4, "handle_pt");
|
jbe@79
|
1694 lua_setfield(L, -2, "__index");
|
jbe@79
|
1695 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1696
|
jbe@79
|
1697 lua_newtable(L); // handle metatable
|
jbe@79
|
1698 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@146
|
1699 lua_pushvalue(L, -1);
|
jbe@146
|
1700 lua_setfield(L, -3, "handle_mt");
|
jbe@79
|
1701 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
1702
|
jbe@108
|
1703 lua_newtable(L); // listener metatable
|
jbe@108
|
1704 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
1705 lua_newtable(L); // listener methods
|
jbe@108
|
1706 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
1707 lua_pushvalue(L, -1);
|
jbe@146
|
1708 lua_setfield(L, -4, "listener_pt");
|
jbe@108
|
1709 lua_setfield(L, -2, "__index");
|
jbe@146
|
1710 lua_pushvalue(L, -1);
|
jbe@146
|
1711 lua_setfield(L, -3, "listener_mt");
|
jbe@108
|
1712 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1713
|
jbe@205
|
1714 lua_newtable(L); // child methods
|
jbe@205
|
1715 luaL_setfuncs(L, moonbr_io_child_methods, 0);
|
jbe@205
|
1716 lua_pushvalue(L, -1);
|
jbe@205
|
1717 lua_setfield(L, -3, "child_pt");
|
jbe@205
|
1718 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1719 lua_newtable(L); // child metatable
|
jbe@205
|
1720 luaL_setfuncs(L, moonbr_io_child_metamethods, 0);
|
jbe@205
|
1721 lua_pushvalue(L, -1);
|
jbe@205
|
1722 lua_setfield(L, -3, "child_mt");
|
jbe@205
|
1723 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1724
|
jbe@205
|
1725 moonbr_io_pushhandle(L, 0);
|
jbe@205
|
1726 lua_setfield(L, -2, "stdin");
|
jbe@205
|
1727 moonbr_io_pushhandle(L, 1);
|
jbe@205
|
1728 lua_setfield(L, -2, "stdout");
|
jbe@205
|
1729 moonbr_io_pushhandle(L, 2);
|
jbe@205
|
1730 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1731
|
jbe@79
|
1732 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
1733 return 1;
|
jbe@79
|
1734
|
jbe@79
|
1735 }
|
jbe@79
|
1736
|