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