rev |
line source |
jbe@209
|
1
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jbe@209
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2 #ifndef __has_include
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jbe@209
|
3 #define __has_include(x) 0
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jbe@209
|
4 #endif
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jbe@79
|
5
|
jbe@79
|
6 #include <stdlib.h>
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jbe@135
|
7 #include <stdint.h>
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jbe@135
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8 #include <string.h>
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jbe@135
|
9 #include <errno.h>
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jbe@79
|
10 #include <unistd.h>
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jbe@135
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11 #include <signal.h>
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jbe@135
|
12 #include <fcntl.h>
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jbe@135
|
13 #include <sys/stat.h>
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jbe@79
|
14 #include <sys/socket.h>
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jbe@111
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15 #include <sys/un.h>
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jbe@95
|
16 #include <netinet/in.h>
|
jbe@95
|
17 #include <netinet/tcp.h>
|
jbe@135
|
18 #include <sys/select.h>
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jbe@136
|
19 #include <time.h>
|
jbe@135
|
20 #include <netdb.h>
|
jbe@107
|
21 #include <arpa/inet.h>
|
jbe@205
|
22 #include <sys/types.h>
|
jbe@205
|
23 #include <sys/wait.h>
|
jbe@209
|
24 #if defined(__linux__) || __has_include(<bsd/unistd.h>)
|
jbe@209
|
25 #include <bsd/unistd.h>
|
jbe@209
|
26 #endif
|
jbe@211
|
27
|
jbe@79
|
28 #include <lua.h>
|
jbe@79
|
29 #include <lauxlib.h>
|
jbe@79
|
30 #include <lualib.h>
|
jbe@79
|
31
|
jbe@149
|
32 #include <assert.h>
|
jbe@149
|
33
|
jbe@80
|
34 #define MOONBR_IO_MAXSTRERRORLEN 80
|
jbe@85
|
35 #define MOONBR_IO_READBUFLEN 4096
|
jbe@80
|
36 #define MOONBR_IO_WRITEBUFLEN 4096
|
jbe@80
|
37
|
jbe@108
|
38 #define MOONBR_IO_LISTEN_BACKLOG 1024
|
jbe@108
|
39
|
jbe@213
|
40 #define MOONBR_IO_STRERROR_R_MSG "Error detail unavailable due to noncompliant strerror_r() implementation"
|
jbe@80
|
41 #define moonbr_io_errmsg() \
|
jbe@213
|
42 char errmsg[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG; \
|
jbe@80
|
43 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
|
jbe@80
|
44
|
jbe@79
|
45 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
|
jbe@79
|
46 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
|
jbe@108
|
47 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
|
jbe@205
|
48 #define MOONBR_IO_CHILD_MT_REGKEY "moonbridge_io_child"
|
jbe@205
|
49 #define MOONBR_IO_CHILD_PT_REGKEY "moonbridge_io_child_pt"
|
jbe@79
|
50
|
jbe@79
|
51 typedef struct {
|
jbe@79
|
52 int fd;
|
jbe@107
|
53 int issock;
|
jbe@107
|
54 sa_family_t addrfam;
|
jbe@94
|
55 int finished;
|
jbe@94
|
56 int closed;
|
jbe@81
|
57 int nonblocking;
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jbe@95
|
58 int nopush;
|
jbe@85
|
59 int readerr;
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jbe@105
|
60 int readbufin;
|
jbe@105
|
61 int readbufout;
|
jbe@81
|
62 int writeerr;
|
jbe@83
|
63 size_t writeleft;
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jbe@132
|
64 size_t flushedleft;
|
jbe@83
|
65 #if LUA_VERSION_NUM >= 503
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jbe@83
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66 lua_Integer writeqin;
|
jbe@83
|
67 lua_Integer writeqout;
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jbe@83
|
68 #else
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jbe@83
|
69 int writeqin;
|
jbe@83
|
70 int writeqout;
|
jbe@83
|
71 #endif
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jbe@83
|
72 size_t writeqoff;
|
jbe@103
|
73 int writebufin;
|
jbe@103
|
74 int writebufout;
|
jbe@85
|
75 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
76 char writebuf[MOONBR_IO_WRITEBUFLEN];
|
jbe@79
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77 } moonbr_io_handle_t;
|
jbe@79
|
78
|
jbe@108
|
79 typedef struct {
|
jbe@108
|
80 int fd;
|
jbe@118
|
81 sa_family_t addrfam;
|
jbe@108
|
82 int nonblocking;
|
jbe@108
|
83 } moonbr_io_listener_t;
|
jbe@108
|
84
|
jbe@205
|
85 typedef struct {
|
jbe@205
|
86 pid_t pid;
|
jbe@205
|
87 } moonbr_io_child_t;
|
jbe@205
|
88
|
jbe@148
|
89 static int moonbr_io_yield(lua_State *L) {
|
jbe@149
|
90 return lua_yield(L, lua_gettop(L));
|
jbe@140
|
91 }
|
jbe@140
|
92
|
jbe@140
|
93 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
94 static int moonbr_io_cont_returnall(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
95 #else
|
jbe@140
|
96 static int moonbr_io_cont_returnall(lua_State *L) {
|
jbe@140
|
97 #endif
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jbe@140
|
98 return lua_gettop(L);
|
jbe@140
|
99 }
|
jbe@140
|
100
|
jbe@145
|
101 #define moonbr_io_yield_wrapper(yieldfunc, callfunc) \
|
jbe@145
|
102 static int yieldfunc(lua_State *L) { \
|
jbe@145
|
103 int args; \
|
jbe@145
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104 lua_pushcfunction(L, callfunc); \
|
jbe@145
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105 lua_insert(L, 1); \
|
jbe@145
|
106 args = lua_gettop(L); \
|
jbe@148
|
107 lua_pushcfunction(L, moonbr_io_yield); \
|
jbe@145
|
108 lua_insert(L, 3); \
|
jbe@145
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109 lua_callk(L, args, LUA_MULTRET, 0, moonbr_io_cont_returnall); \
|
jbe@145
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110 return lua_gettop(L); \
|
jbe@145
|
111 }
|
jbe@145
|
112
|
jbe@81
|
113 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
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114 int flags;
|
jbe@95
|
115 if (handle->nonblocking == nonblocking) return;
|
jbe@95
|
116 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@95
|
117 if (flags == -1) {
|
jbe@95
|
118 moonbr_io_errmsg();
|
jbe@96
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119 close(handle->fd);
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jbe@96
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120 handle->fd = -1;
|
jbe@96
|
121 handle->closed = 1;
|
jbe@95
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122 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@81
|
123 }
|
jbe@95
|
124 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@95
|
125 else flags &= ~O_NONBLOCK;
|
jbe@95
|
126 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
|
jbe@95
|
127 moonbr_io_errmsg();
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jbe@96
|
128 close(handle->fd);
|
jbe@96
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129 handle->fd = -1;
|
jbe@96
|
130 handle->closed = 1;
|
jbe@95
|
131 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@95
|
132 }
|
jbe@95
|
133 handle->nonblocking = nonblocking;
|
jbe@81
|
134 }
|
jbe@81
|
135
|
jbe@87
|
136 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
137 struct linger lingerval = { 0, };
|
jbe@107
|
138 if (!handle->issock) return;
|
jbe@87
|
139 if (timeout >= 0) {
|
jbe@87
|
140 lingerval.l_onoff = 1;
|
jbe@87
|
141 lingerval.l_linger = timeout;
|
jbe@87
|
142 }
|
jbe@87
|
143 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
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144 moonbr_io_errmsg();
|
jbe@96
|
145 close(handle->fd);
|
jbe@96
|
146 handle->fd = -1;
|
jbe@96
|
147 handle->closed = 1;
|
jbe@95
|
148 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
149 }
|
jbe@87
|
150 }
|
jbe@87
|
151
|
jbe@133
|
152 static inline void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
153 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
154 if (
|
jbe@107
|
155 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
|
156 handle->nopush == nopush
|
jbe@107
|
157 ) return;
|
jbe@96
|
158 #if defined(TCP_NOPUSH)
|
jbe@96
|
159 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@104
|
160 #elif defined(TCP_CORK)
|
jbe@104
|
161 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
|
jbe@104
|
162 #endif
|
jbe@96
|
163 moonbr_io_errmsg();
|
jbe@96
|
164 close(handle->fd);
|
jbe@96
|
165 handle->fd = -1;
|
jbe@96
|
166 handle->closed = 1;
|
jbe@104
|
167 #if defined(TCP_NOPUSH)
|
jbe@96
|
168 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
|
jbe@96
|
169 #elif defined(TCP_CORK)
|
jbe@95
|
170 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
|
171 #endif
|
jbe@95
|
172 }
|
jbe@95
|
173 handle->nopush = nopush;
|
jbe@96
|
174 #else
|
jbe@96
|
175 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
|
176 #endif
|
jbe@95
|
177 }
|
jbe@95
|
178
|
jbe@86
|
179 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
180 moonbr_io_handle_t *handle;
|
jbe@85
|
181 lua_Integer maxread;
|
jbe@85
|
182 const char *terminatorstr;
|
jbe@210
|
183 size_t terminatorlen;
|
jbe@210
|
184 char terminator = 0; /* initialize to avoid compiler warning */
|
jbe@85
|
185 luaL_Buffer luabuf;
|
jbe@85
|
186 size_t luabufcnt = 0;
|
jbe@105
|
187 int remaining;
|
jbe@85
|
188 char *terminatorpos;
|
jbe@103
|
189 ssize_t bytesread;
|
jbe@85
|
190 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@153
|
191 maxread = luaL_optinteger(L, 2, -1);
|
jbe@85
|
192 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
193 if (terminatorlen) {
|
jbe@85
|
194 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
195 terminator = terminatorstr[0];
|
jbe@85
|
196 }
|
jbe@86
|
197 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
|
198 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
199 if (handle->readerr) {
|
jbe@85
|
200 lua_pushnil(L);
|
jbe@85
|
201 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
202 return 2;
|
jbe@85
|
203 }
|
jbe@143
|
204 if (handle->fd < 0) {
|
jbe@143
|
205 /* fake EOF to simulate shutdown */
|
jbe@143
|
206 if (!drain) lua_pushliteral(L, "");
|
jbe@143
|
207 else lua_pushinteger(L, 0);
|
jbe@143
|
208 lua_pushliteral(L, "eof");
|
jbe@143
|
209 return 2;
|
jbe@143
|
210 }
|
jbe@105
|
211 handle->readerr = 1;
|
jbe@85
|
212 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@86
|
213 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
214 while (1) {
|
jbe@105
|
215 remaining = -1;
|
jbe@142
|
216 terminatorpos = NULL;
|
jbe@105
|
217 if (
|
jbe@153
|
218 maxread >= 0 &&
|
jbe@143
|
219 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
220 ) {
|
jbe@142
|
221 remaining = (size_t)maxread - luabufcnt;
|
jbe@193
|
222 if (terminatorlen) {
|
jbe@193
|
223 terminatorpos = memchr(
|
jbe@193
|
224 handle->readbuf + handle->readbufout,
|
jbe@193
|
225 terminator,
|
jbe@193
|
226 remaining
|
jbe@193
|
227 );
|
jbe@193
|
228 }
|
jbe@85
|
229 } else if (terminatorlen) {
|
jbe@105
|
230 terminatorpos = memchr(
|
jbe@105
|
231 handle->readbuf + handle->readbufout,
|
jbe@105
|
232 terminator,
|
jbe@105
|
233 handle->readbufin - handle->readbufout
|
jbe@105
|
234 );
|
jbe@85
|
235 }
|
jbe@142
|
236 if (terminatorpos) remaining = 1 + (
|
jbe@142
|
237 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@142
|
238 );
|
jbe@105
|
239 if (remaining >= 0) {
|
jbe@86
|
240 if (!drain) {
|
jbe@105
|
241 luaL_addlstring(
|
jbe@105
|
242 &luabuf,
|
jbe@105
|
243 handle->readbuf + handle->readbufout,
|
jbe@105
|
244 remaining
|
jbe@105
|
245 );
|
jbe@86
|
246 luaL_pushresult(&luabuf);
|
jbe@90
|
247 } else {
|
jbe@105
|
248 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
249 }
|
jbe@143
|
250 if (terminatorpos) lua_pushliteral(L, "term");
|
jbe@143
|
251 else lua_pushliteral(L, "maxlen");
|
jbe@105
|
252 handle->readbufout += remaining;
|
jbe@105
|
253 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
254 handle->readbufin = 0;
|
jbe@143
|
255 handle->readbufout = 0;
|
jbe@105
|
256 }
|
jbe@104
|
257 handle->readerr = 0;
|
jbe@143
|
258 return 2;
|
jbe@85
|
259 }
|
jbe@105
|
260 if (!drain) luaL_addlstring(
|
jbe@105
|
261 &luabuf,
|
jbe@105
|
262 handle->readbuf + handle->readbufout,
|
jbe@105
|
263 handle->readbufin - handle->readbufout
|
jbe@105
|
264 );
|
jbe@105
|
265 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@143
|
266 handle->readbufout = 0;
|
jbe@85
|
267 do {
|
jbe@103
|
268 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
269 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
270 if (
|
jbe@105
|
271 bytesread == 0 || (
|
jbe@105
|
272 nonblocking &&
|
jbe@105
|
273 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
274 )
|
jbe@105
|
275 ) {
|
jbe@105
|
276 handle->readbufin = 0;
|
jbe@143
|
277 if (!drain) luaL_pushresult(&luabuf);
|
jbe@143
|
278 else lua_pushinteger(L, luabufcnt);
|
jbe@143
|
279 if (bytesread == 0) lua_pushliteral(L, "eof");
|
jbe@143
|
280 else lua_pushliteral(L, "block");
|
jbe@105
|
281 handle->readerr = 0;
|
jbe@143
|
282 return 2;
|
jbe@105
|
283 }
|
jbe@103
|
284 if (bytesread < 0) {
|
jbe@85
|
285 moonbr_io_errmsg();
|
jbe@85
|
286 lua_pushnil(L);
|
jbe@85
|
287 lua_pushstring(L, errmsg);
|
jbe@85
|
288 return 2;
|
jbe@85
|
289 }
|
jbe@105
|
290 handle->readbufin = bytesread;
|
jbe@86
|
291 }
|
jbe@85
|
292 }
|
jbe@85
|
293
|
jbe@85
|
294 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
295 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
296 }
|
jbe@85
|
297
|
jbe@85
|
298 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
299 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
300 }
|
jbe@86
|
301
|
jbe@86
|
302 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
303 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
304 }
|
jbe@86
|
305
|
jbe@86
|
306 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
307 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
308 }
|
jbe@85
|
309
|
jbe@140
|
310 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
311 static int moonbr_io_read_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@140
|
312 #else
|
jbe@140
|
313 static int moonbr_io_read_cont(lua_State *L) {
|
jbe@140
|
314 #endif
|
jbe@143
|
315 lua_Integer remaining;
|
jbe@143
|
316 size_t len;
|
jbe@140
|
317 #if !(LUA_VERSION_NUM >= 503)
|
jbe@140
|
318 int ctx = 0;
|
jbe@140
|
319 lua_getctx(L, &ctx);
|
jbe@140
|
320 #endif
|
jbe@140
|
321 remaining = lua_tointeger(L, 3);
|
jbe@140
|
322 while (1) {
|
jbe@140
|
323 lua_pushcfunction(L, moonbr_io_read_nb);
|
jbe@140
|
324 lua_pushvalue(L, 1);
|
jbe@140
|
325 lua_pushvalue(L, 3);
|
jbe@140
|
326 lua_pushvalue(L, 4);
|
jbe@140
|
327 lua_call(L, 3, 2);
|
jbe@143
|
328 if (lua_isnil(L, -2)) return 2;
|
jbe@143
|
329 lua_insert(L, -2);
|
jbe@143
|
330 len = lua_rawlen(L, -1);
|
jbe@143
|
331 if (ctx == 0) {
|
jbe@143
|
332 lua_replace(L, 5);
|
jbe@143
|
333 ctx = 1;
|
jbe@143
|
334 } else if (ctx == 1) {
|
jbe@143
|
335 lua_pushvalue(L, 5);
|
jbe@143
|
336 lua_newtable(L);
|
jbe@143
|
337 lua_replace(L, 5);
|
jbe@143
|
338 lua_rawseti(L, 5, 2);
|
jbe@143
|
339 lua_rawseti(L, 5, 1);
|
jbe@143
|
340 ctx = 2;
|
jbe@140
|
341 } else {
|
jbe@143
|
342 lua_rawseti(L, 5, lua_rawlen(L, 5) + 1);
|
jbe@140
|
343 }
|
jbe@144
|
344 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
345 lua_pop(L, 1);
|
jbe@144
|
346 if (remaining >= 0 && len) {
|
jbe@143
|
347 remaining -= len;
|
jbe@143
|
348 lua_pushinteger(L, remaining);
|
jbe@143
|
349 lua_replace(L, 3);
|
jbe@143
|
350 }
|
jbe@140
|
351 lua_pushvalue(L, 2);
|
jbe@152
|
352 lua_callk(L, 0, 0, ctx, moonbr_io_read_cont);
|
jbe@140
|
353 }
|
jbe@140
|
354 if (ctx == 1) {
|
jbe@140
|
355 lua_pushvalue(L, 5);
|
jbe@140
|
356 } else {
|
jbe@140
|
357 luaL_Buffer buf;
|
jbe@140
|
358 lua_Integer i, chunkcount;
|
jbe@140
|
359 chunkcount = lua_rawlen(L, 5);
|
jbe@140
|
360 luaL_buffinit(L, &buf);
|
jbe@140
|
361 for (i=1; i<=chunkcount && i>0; i++) {
|
jbe@140
|
362 lua_rawgeti(L, 5, i);
|
jbe@140
|
363 luaL_addvalue(&buf);
|
jbe@140
|
364 }
|
jbe@140
|
365 luaL_pushresult(&buf);
|
jbe@140
|
366 }
|
jbe@143
|
367 lua_pushvalue(L, -2);
|
jbe@143
|
368 return 2;
|
jbe@140
|
369 }
|
jbe@140
|
370
|
jbe@140
|
371 static int moonbr_io_read_call(lua_State *L) {
|
jbe@140
|
372 lua_settop(L, 4);
|
jbe@140
|
373 lua_pushnil(L);
|
jbe@140
|
374 #if LUA_VERSION_NUM >= 503
|
jbe@140
|
375 return moonbr_io_read_cont(L, 0, 0);
|
jbe@140
|
376 #else
|
jbe@140
|
377 return moonbr_io_read_cont(L);
|
jbe@140
|
378 #endif
|
jbe@140
|
379 }
|
jbe@140
|
380
|
jbe@145
|
381 moonbr_io_yield_wrapper(moonbr_io_read_yield, moonbr_io_read_call);
|
jbe@140
|
382
|
jbe@144
|
383 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
384 static int moonbr_io_drain_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@144
|
385 #else
|
jbe@144
|
386 static int moonbr_io_drain_cont(lua_State *L) {
|
jbe@144
|
387 #endif
|
jbe@144
|
388 lua_Integer remaining, len;
|
jbe@144
|
389 size_t totallen = 0;
|
jbe@144
|
390 #if !(LUA_VERSION_NUM >= 503)
|
jbe@144
|
391 int ctx = 0;
|
jbe@144
|
392 lua_getctx(L, &ctx);
|
jbe@144
|
393 #endif
|
jbe@144
|
394 remaining = lua_tointeger(L, 3);
|
jbe@144
|
395 while (1) {
|
jbe@144
|
396 lua_pushcfunction(L, moonbr_io_drain_nb);
|
jbe@144
|
397 lua_pushvalue(L, 1);
|
jbe@144
|
398 lua_pushvalue(L, 3);
|
jbe@144
|
399 lua_pushvalue(L, 4);
|
jbe@144
|
400 lua_call(L, 3, 2);
|
jbe@144
|
401 if (lua_isnil(L, -2)) return 2;
|
jbe@144
|
402 lua_insert(L, -2);
|
jbe@144
|
403 len = lua_tointeger(L, -1);
|
jbe@144
|
404 lua_pop(L, 1);
|
jbe@144
|
405 totallen += len;
|
jbe@144
|
406 if (strcmp(lua_tostring(L, -1), "block") != 0) break;
|
jbe@144
|
407 lua_pop(L, 1);
|
jbe@144
|
408 if (remaining >= 0 && len) {
|
jbe@144
|
409 remaining -= len;
|
jbe@144
|
410 lua_pushinteger(L, remaining);
|
jbe@144
|
411 lua_replace(L, 3);
|
jbe@144
|
412 }
|
jbe@144
|
413 lua_pushvalue(L, 2);
|
jbe@152
|
414 lua_callk(L, 0, 0, ctx, moonbr_io_drain_cont);
|
jbe@144
|
415 }
|
jbe@144
|
416 lua_pushinteger(L, totallen);
|
jbe@144
|
417 lua_pushvalue(L, -2);
|
jbe@144
|
418 return 2;
|
jbe@144
|
419 }
|
jbe@144
|
420
|
jbe@144
|
421 static int moonbr_io_drain_call(lua_State *L) {
|
jbe@144
|
422 #if LUA_VERSION_NUM >= 503
|
jbe@144
|
423 return moonbr_io_drain_cont(L, 0, 0);
|
jbe@144
|
424 #else
|
jbe@144
|
425 return moonbr_io_drain_cont(L);
|
jbe@144
|
426 #endif
|
jbe@144
|
427 }
|
jbe@144
|
428
|
jbe@145
|
429 moonbr_io_yield_wrapper(moonbr_io_drain_yield, moonbr_io_drain_call);
|
jbe@144
|
430
|
jbe@81
|
431 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
432 moonbr_io_handle_t *handle;
|
jbe@80
|
433 int i, top;
|
jbe@80
|
434 const char *str;
|
jbe@92
|
435 size_t strlen;
|
jbe@103
|
436 ssize_t written;
|
jbe@80
|
437 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
438 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
439 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
440 if (handle->writeerr) {
|
jbe@80
|
441 lua_pushnil(L);
|
jbe@80
|
442 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
443 return 2;
|
jbe@80
|
444 }
|
jbe@103
|
445 handle->writeerr = 1;
|
jbe@81
|
446 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
447 top = lua_gettop(L);
|
jbe@81
|
448 lua_getuservalue(L, 1);
|
jbe@103
|
449 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
450 for (i=2; i<=top; i++) {
|
jbe@84
|
451 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
452 lua_pushvalue(L, i);
|
jbe@84
|
453 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
454 handle->writeleft += strlen;
|
jbe@81
|
455 }
|
jbe@132
|
456 if (flush) handle->flushedleft = handle->writeleft;
|
jbe@83
|
457 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
458 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
459 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
460 while (handle->writeqoff < strlen) {
|
jbe@103
|
461 if (
|
jbe@132
|
462 strlen - handle->writeqoff <
|
jbe@103
|
463 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
464 ) {
|
jbe@103
|
465 memcpy(
|
jbe@103
|
466 handle->writebuf + handle->writebufin,
|
jbe@103
|
467 str + handle->writeqoff,
|
jbe@103
|
468 strlen - handle->writeqoff
|
jbe@103
|
469 );
|
jbe@103
|
470 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
471 break;
|
jbe@80
|
472 } else {
|
jbe@103
|
473 memcpy(
|
jbe@103
|
474 handle->writebuf + handle->writebufin,
|
jbe@103
|
475 str + handle->writeqoff,
|
jbe@103
|
476 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
477 );
|
jbe@103
|
478 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@228
|
479 handle->writebufin = MOONBR_IO_WRITEBUFLEN;
|
jbe@103
|
480 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@133
|
481 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
482 written = write(
|
jbe@103
|
483 handle->fd,
|
jbe@103
|
484 handle->writebuf + handle->writebufout,
|
jbe@103
|
485 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
486 );
|
jbe@103
|
487 if (written < 0) {
|
jbe@81
|
488 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
489 goto moonbr_io_write_impl_block;
|
jbe@81
|
490 } else if (errno != EINTR) {
|
jbe@80
|
491 moonbr_io_errmsg();
|
jbe@80
|
492 lua_pushnil(L);
|
jbe@80
|
493 lua_pushstring(L, errmsg);
|
jbe@80
|
494 return 2;
|
jbe@80
|
495 }
|
jbe@103
|
496 } else {
|
jbe@103
|
497 handle->writebufout += written;
|
jbe@103
|
498 handle->writeleft -= written;
|
jbe@133
|
499 if (handle->flushedleft) {
|
jbe@133
|
500 if (written >= handle->flushedleft) {
|
jbe@133
|
501 handle->flushedleft = 0;
|
jbe@133
|
502 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
503 } else {
|
jbe@133
|
504 handle->flushedleft -= written;
|
jbe@133
|
505 }
|
jbe@133
|
506 }
|
jbe@80
|
507 }
|
jbe@80
|
508 }
|
jbe@103
|
509 handle->writebufin = 0;
|
jbe@103
|
510 handle->writebufout = 0;
|
jbe@80
|
511 }
|
jbe@80
|
512 }
|
jbe@81
|
513 handle->writeqoff = 0;
|
jbe@81
|
514 lua_pop(L, 1);
|
jbe@81
|
515 lua_pushnil(L);
|
jbe@83
|
516 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
517 }
|
jbe@132
|
518 while (handle->flushedleft) {
|
jbe@133
|
519 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@132
|
520 written = write(
|
jbe@132
|
521 handle->fd,
|
jbe@132
|
522 handle->writebuf + handle->writebufout,
|
jbe@132
|
523 handle->writebufin - handle->writebufout
|
jbe@132
|
524 );
|
jbe@132
|
525 if (written < 0) {
|
jbe@132
|
526 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@132
|
527 goto moonbr_io_write_impl_block;
|
jbe@132
|
528 } else if (errno != EINTR) {
|
jbe@132
|
529 moonbr_io_errmsg();
|
jbe@132
|
530 lua_pushnil(L);
|
jbe@132
|
531 lua_pushstring(L, errmsg);
|
jbe@132
|
532 return 2;
|
jbe@81
|
533 }
|
jbe@132
|
534 } else {
|
jbe@132
|
535 handle->writebufout += written;
|
jbe@132
|
536 handle->writeleft -= written;
|
jbe@133
|
537 if (handle->flushedleft) {
|
jbe@133
|
538 if (written >= handle->flushedleft) {
|
jbe@133
|
539 handle->flushedleft = 0;
|
jbe@133
|
540 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@133
|
541 } else {
|
jbe@133
|
542 handle->flushedleft -= written;
|
jbe@133
|
543 }
|
jbe@133
|
544 }
|
jbe@81
|
545 }
|
jbe@132
|
546 }
|
jbe@132
|
547 if (handle->writebufout == handle->writebufin) {
|
jbe@103
|
548 handle->writebufin = 0;
|
jbe@103
|
549 handle->writebufout = 0;
|
jbe@81
|
550 }
|
jbe@103
|
551 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
552 else lua_pushvalue(L, 1);
|
jbe@103
|
553 handle->writeerr = 0;
|
jbe@80
|
554 return 1;
|
jbe@81
|
555 moonbr_io_write_impl_block:
|
jbe@91
|
556 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
557 handle->writeerr = 0;
|
jbe@81
|
558 return 1;
|
jbe@81
|
559 }
|
jbe@81
|
560
|
jbe@81
|
561 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
562 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
563 }
|
jbe@81
|
564
|
jbe@81
|
565 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
566 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
567 }
|
jbe@80
|
568
|
jbe@80
|
569 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
570 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
571 }
|
jbe@81
|
572
|
jbe@81
|
573 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
574 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
575 }
|
jbe@80
|
576
|
jbe@145
|
577 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
578 static int moonbr_io_write_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@145
|
579 #else
|
jbe@145
|
580 static int moonbr_io_write_cont(lua_State *L) {
|
jbe@145
|
581 #endif
|
jbe@145
|
582 while (1) {
|
jbe@145
|
583 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
584 lua_pushvalue(L, 1);
|
jbe@145
|
585 lua_call(L, 1, 2);
|
jbe@145
|
586 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
587 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
588 lua_pushvalue(L, 1);
|
jbe@145
|
589 return 1;
|
jbe@145
|
590 }
|
jbe@145
|
591 lua_pop(L, 2);
|
jbe@145
|
592 lua_pushvalue(L, 2);
|
jbe@152
|
593 lua_callk(L, 0, 0, 0, moonbr_io_write_cont);
|
jbe@145
|
594 }
|
jbe@145
|
595 }
|
jbe@145
|
596
|
jbe@145
|
597 static int moonbr_io_write_call(lua_State *L) {
|
jbe@145
|
598 lua_pushcfunction(L, moonbr_io_write_nb);
|
jbe@145
|
599 lua_insert(L, 3);
|
jbe@145
|
600 lua_pushvalue(L, 1);
|
jbe@145
|
601 lua_insert(L, 4);
|
jbe@145
|
602 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
603 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
604 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
605 lua_pushvalue(L, 1);
|
jbe@145
|
606 return 1;
|
jbe@145
|
607 }
|
jbe@145
|
608 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
609 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
610 #else
|
jbe@145
|
611 return moonbr_io_write_cont(L);
|
jbe@145
|
612 #endif
|
jbe@145
|
613 }
|
jbe@145
|
614
|
jbe@145
|
615 moonbr_io_yield_wrapper(moonbr_io_write_yield, moonbr_io_write_call);
|
jbe@145
|
616
|
jbe@145
|
617 static int moonbr_io_flush_call(lua_State *L) {
|
jbe@145
|
618 lua_pushcfunction(L, moonbr_io_flush_nb);
|
jbe@145
|
619 lua_insert(L, 3);
|
jbe@145
|
620 lua_pushvalue(L, 1);
|
jbe@145
|
621 lua_insert(L, 4);
|
jbe@145
|
622 lua_call(L, lua_gettop(L) - 3, 2);
|
jbe@145
|
623 if (lua_isnil(L, -2)) return 2;
|
jbe@145
|
624 if (!lua_tointeger(L, -2)) {
|
jbe@145
|
625 lua_pushvalue(L, 1);
|
jbe@145
|
626 return 1;
|
jbe@145
|
627 }
|
jbe@145
|
628 #if LUA_VERSION_NUM >= 503
|
jbe@145
|
629 return moonbr_io_write_cont(L, 0, 0);
|
jbe@145
|
630 #else
|
jbe@145
|
631 return moonbr_io_write_cont(L);
|
jbe@145
|
632 #endif
|
jbe@145
|
633 }
|
jbe@145
|
634
|
jbe@145
|
635 moonbr_io_yield_wrapper(moonbr_io_flush_yield, moonbr_io_flush_call);
|
jbe@145
|
636
|
jbe@88
|
637 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
638 moonbr_io_handle_t *handle;
|
jbe@88
|
639 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
640 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
641 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
642 if (handle->writeleft) {
|
jbe@94
|
643 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
644 lua_pushvalue(L, 1);
|
jbe@116
|
645 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@116
|
646 handle->finished = 1;
|
jbe@116
|
647 lua_error(L);
|
jbe@116
|
648 }
|
jbe@94
|
649 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
650 handle->finished = 1;
|
jbe@94
|
651 return 2;
|
jbe@88
|
652 }
|
jbe@94
|
653 }
|
jbe@94
|
654 handle->finished = 1;
|
jbe@107
|
655 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@88
|
656 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
657 moonbr_io_errmsg();
|
jbe@88
|
658 lua_pushnil(L);
|
jbe@88
|
659 lua_pushstring(L, errmsg);
|
jbe@88
|
660 return 2;
|
jbe@88
|
661 }
|
jbe@94
|
662 } else {
|
jbe@94
|
663 if (close(handle->fd)) {
|
jbe@94
|
664 moonbr_io_errmsg();
|
jbe@94
|
665 handle->fd = -1;
|
jbe@94
|
666 lua_pushnil(L);
|
jbe@94
|
667 lua_pushstring(L, errmsg);
|
jbe@94
|
668 return 2;
|
jbe@94
|
669 }
|
jbe@94
|
670 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
671 }
|
jbe@88
|
672 lua_pushboolean(L, 1);
|
jbe@88
|
673 return 1;
|
jbe@88
|
674 }
|
jbe@88
|
675
|
jbe@94
|
676 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
677 moonbr_io_handle_t *handle;
|
jbe@83
|
678 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
679 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
680 if (!reset) {
|
jbe@87
|
681 if (handle->writeleft) {
|
jbe@87
|
682 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
683 lua_pushvalue(L, 1);
|
jbe@116
|
684 if (lua_pcall(L, 1, 2, 0)) {
|
jbe@129
|
685 handle->closed = 1;
|
jbe@116
|
686 close(handle->fd);
|
jbe@116
|
687 handle->fd = -1;
|
jbe@116
|
688 lua_error(L);
|
jbe@116
|
689 }
|
jbe@129
|
690 handle->closed = 1;
|
jbe@87
|
691 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
692 close(handle->fd);
|
jbe@87
|
693 handle->fd = -1;
|
jbe@87
|
694 return 2;
|
jbe@87
|
695 }
|
jbe@129
|
696 } else {
|
jbe@129
|
697 handle->closed = 1;
|
jbe@129
|
698 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
699 }
|
jbe@129
|
700 } else {
|
jbe@129
|
701 handle->closed = 1;
|
jbe@83
|
702 }
|
jbe@94
|
703 if (handle->fd >= 0) {
|
jbe@94
|
704 if (close(handle->fd)) {
|
jbe@94
|
705 moonbr_io_errmsg();
|
jbe@94
|
706 handle->fd = -1;
|
jbe@94
|
707 lua_pushnil(L);
|
jbe@94
|
708 lua_pushstring(L, errmsg);
|
jbe@94
|
709 return 2;
|
jbe@94
|
710 }
|
jbe@104
|
711 handle->fd = -1;
|
jbe@83
|
712 }
|
jbe@83
|
713 lua_pushboolean(L, 1);
|
jbe@83
|
714 return 1;
|
jbe@84
|
715
|
jbe@83
|
716 }
|
jbe@83
|
717
|
jbe@94
|
718 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
719 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
720 }
|
jbe@94
|
721
|
jbe@84
|
722 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
723 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
724 }
|
jbe@84
|
725
|
jbe@108
|
726 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
727 moonbr_io_handle_t *handle;
|
jbe@88
|
728 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
729 if (handle->fd >= 0) {
|
jbe@218
|
730 lua_pushcfunction(L, moonbr_io_reset);
|
jbe@88
|
731 lua_pushvalue(L, 1);
|
jbe@88
|
732 lua_pushinteger(L, 0);
|
jbe@88
|
733 lua_call(L, 2, 0);
|
jbe@88
|
734 }
|
jbe@88
|
735 return 0;
|
jbe@88
|
736 }
|
jbe@88
|
737
|
jbe@100
|
738 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
739 moonbr_io_handle_t *handle;
|
jbe@88
|
740 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
741 if (!handle->closed) {
|
jbe@100
|
742 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
743 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
744 lua_call(L, 1, 0);
|
jbe@88
|
745 }
|
jbe@88
|
746 }
|
jbe@88
|
747
|
jbe@208
|
748 static int moonbr_io_pushhandle_impl(lua_State *L) {
|
jbe@208
|
749 int *fd;
|
jbe@79
|
750 moonbr_io_handle_t *handle;
|
jbe@107
|
751 struct sockaddr addr;
|
jbe@107
|
752 socklen_t addrlen;
|
jbe@208
|
753 fd = lua_touserdata(L, 1);
|
jbe@79
|
754 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@208
|
755 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@107
|
756 addrlen = sizeof(addr);
|
jbe@208
|
757 if (getsockname(*fd, &addr, &addrlen)) {
|
jbe@107
|
758 if (errno != ENOTSOCK) {
|
jbe@107
|
759 moonbr_io_errmsg();
|
jbe@107
|
760 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
761 }
|
jbe@107
|
762 handle->issock = 0;
|
jbe@107
|
763 } else {
|
jbe@107
|
764 handle->issock = 1;
|
jbe@107
|
765 handle->addrfam = addr.sa_family;
|
jbe@107
|
766 }
|
jbe@94
|
767 handle->finished = 0;
|
jbe@94
|
768 handle->closed = 0;
|
jbe@81
|
769 handle->nonblocking = -1;
|
jbe@95
|
770 handle->nopush = -1;
|
jbe@85
|
771 handle->readerr = 0;
|
jbe@105
|
772 handle->readbufin = 0;
|
jbe@105
|
773 handle->readbufout = 0;
|
jbe@81
|
774 handle->writeerr = 0;
|
jbe@81
|
775 handle->writeleft = 0;
|
jbe@132
|
776 handle->flushedleft = 0;
|
jbe@83
|
777 handle->writeqin = 0;
|
jbe@83
|
778 handle->writeqout = 0;
|
jbe@81
|
779 handle->writeqoff = 0;
|
jbe@103
|
780 handle->writebufin = 0;
|
jbe@103
|
781 handle->writebufout = 0;
|
jbe@208
|
782 handle->fd = *fd; /* required for set_linger call */
|
jbe@87
|
783 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@208
|
784 handle->fd = -1; /* avoid closing incomplete handle */
|
jbe@79
|
785 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
786 lua_setmetatable(L, -2);
|
jbe@79
|
787 lua_newtable(L); // uservalue
|
jbe@81
|
788 lua_newtable(L);
|
jbe@103
|
789 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
790 lua_newtable(L); // public
|
jbe@107
|
791 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
792 struct sockaddr_in6 addr_in6;
|
jbe@107
|
793 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
794 const char *addrstr;
|
jbe@107
|
795 addrlen = sizeof(addr_in6);
|
jbe@208
|
796 if (getsockname(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
797 moonbr_io_errmsg();
|
jbe@107
|
798 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
799 }
|
jbe@107
|
800 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
801 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
802 }
|
jbe@107
|
803 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
804 if (!addrstr) {
|
jbe@107
|
805 moonbr_io_errmsg();
|
jbe@107
|
806 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
807 } else {
|
jbe@107
|
808 lua_pushstring(L, addrstr);
|
jbe@107
|
809 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
810 }
|
jbe@107
|
811 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
812 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
813 if (getpeername(*fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
814 moonbr_io_errmsg();
|
jbe@107
|
815 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
816 }
|
jbe@107
|
817 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
818 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
819 }
|
jbe@107
|
820 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
821 if (!addrstr) {
|
jbe@107
|
822 moonbr_io_errmsg();
|
jbe@107
|
823 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
824 } else {
|
jbe@107
|
825 lua_pushstring(L, addrstr);
|
jbe@107
|
826 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
827 }
|
jbe@107
|
828 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
829 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
830 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
831 struct sockaddr_in addr_in;
|
jbe@107
|
832 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
833 const char *addrstr;
|
jbe@107
|
834 addrlen = sizeof(addr_in);
|
jbe@208
|
835 if (getsockname(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
836 moonbr_io_errmsg();
|
jbe@107
|
837 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
838 }
|
jbe@107
|
839 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
840 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
841 }
|
jbe@107
|
842 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
843 if (!addrstr) {
|
jbe@107
|
844 moonbr_io_errmsg();
|
jbe@107
|
845 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
846 } else {
|
jbe@107
|
847 lua_pushstring(L, addrstr);
|
jbe@107
|
848 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
849 }
|
jbe@107
|
850 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
851 lua_setfield(L, -2, "local_tcpport");
|
jbe@208
|
852 if (getpeername(*fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
853 moonbr_io_errmsg();
|
jbe@107
|
854 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
855 }
|
jbe@107
|
856 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
857 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
858 }
|
jbe@107
|
859 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
860 if (!addrstr) {
|
jbe@107
|
861 moonbr_io_errmsg();
|
jbe@107
|
862 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
863 } else {
|
jbe@107
|
864 lua_pushstring(L, addrstr);
|
jbe@107
|
865 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
866 }
|
jbe@107
|
867 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
868 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
869 }
|
jbe@79
|
870 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
871 lua_setmetatable(L, -2);
|
jbe@79
|
872 lua_setfield(L, -2, "public");
|
jbe@79
|
873 lua_setuservalue(L, -2);
|
jbe@208
|
874 handle->fd = *fd;
|
jbe@208
|
875 *fd = -1; /* closing is now handled by garbage collection */
|
jbe@208
|
876 return 1;
|
jbe@208
|
877 }
|
jbe@208
|
878
|
jbe@208
|
879 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@208
|
880 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
881 lua_pushlightuserdata(L, &fd);
|
jbe@208
|
882 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
883 if (fd != -1) close(fd);
|
jbe@208
|
884 lua_error(L);
|
jbe@208
|
885 }
|
jbe@79
|
886 }
|
jbe@79
|
887
|
jbe@79
|
888 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
889 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
890 luaL_checkany(L, 2);
|
jbe@79
|
891 lua_getuservalue(L, 1);
|
jbe@79
|
892 lua_getfield(L, -1, "public");
|
jbe@79
|
893 lua_pushvalue(L, 2);
|
jbe@79
|
894 lua_gettable(L, -2);
|
jbe@79
|
895 return 1;
|
jbe@79
|
896 }
|
jbe@79
|
897
|
jbe@79
|
898 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
899 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@205
|
900 luaL_checkany(L, 2);
|
jbe@205
|
901 luaL_checkany(L, 3);
|
jbe@79
|
902 lua_getuservalue(L, 1);
|
jbe@79
|
903 lua_getfield(L, -1, "public");
|
jbe@79
|
904 lua_pushvalue(L, 2);
|
jbe@79
|
905 lua_pushvalue(L, 3);
|
jbe@79
|
906 lua_settable(L, -3);
|
jbe@79
|
907 return 0;
|
jbe@79
|
908 }
|
jbe@79
|
909
|
jbe@111
|
910 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
911 const char *path;
|
jbe@111
|
912 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
913 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
914 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
915 ) - 1; /* one byte for termination */
|
jbe@111
|
916 int sock;
|
jbe@111
|
917 path = luaL_checkstring(L, 1);
|
jbe@111
|
918 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
919 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
920 sock = socket(
|
jbe@111
|
921 PF_LOCAL,
|
jbe@111
|
922 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
923 0
|
jbe@111
|
924 );
|
jbe@111
|
925 if (sock < 0) {
|
jbe@111
|
926 moonbr_io_errmsg();
|
jbe@111
|
927 lua_pushnil(L);
|
jbe@111
|
928 lua_pushstring(L, errmsg);
|
jbe@111
|
929 return 2;
|
jbe@111
|
930 }
|
jbe@111
|
931 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
932 if (!nonblocking && errno == EINTR) {
|
jbe@111
|
933 moonbr_io_errmsg();
|
jbe@111
|
934 close(sock);
|
jbe@111
|
935 lua_pushnil(L);
|
jbe@111
|
936 lua_pushstring(L, errmsg);
|
jbe@111
|
937 return 2;
|
jbe@111
|
938 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@111
|
939 moonbr_io_errmsg();
|
jbe@111
|
940 lua_pushnil(L);
|
jbe@111
|
941 lua_pushstring(L, errmsg);
|
jbe@111
|
942 return 2;
|
jbe@111
|
943 }
|
jbe@111
|
944 }
|
jbe@111
|
945 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
946 return 1;
|
jbe@111
|
947 }
|
jbe@111
|
948
|
jbe@111
|
949 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
950 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
951 }
|
jbe@111
|
952
|
jbe@111
|
953 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
954 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
955 }
|
jbe@111
|
956
|
jbe@99
|
957 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
958 const char *host, *port;
|
jbe@98
|
959 struct addrinfo hints = { 0, };
|
jbe@98
|
960 struct addrinfo *res, *addrinfo;
|
jbe@98
|
961 int errcode;
|
jbe@98
|
962 int sock;
|
jbe@98
|
963 host = luaL_checkstring(L, 1);
|
jbe@98
|
964 port = luaL_checkstring(L, 2);
|
jbe@98
|
965 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
966 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
967 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
968 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
969 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
970 if (errcode) {
|
jbe@102
|
971 freeaddrinfo(res);
|
jbe@98
|
972 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
973 moonbr_io_errmsg();
|
jbe@98
|
974 lua_pushnil(L);
|
jbe@98
|
975 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
976 } else {
|
jbe@98
|
977 lua_pushnil(L);
|
jbe@98
|
978 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
979 }
|
jbe@98
|
980 return 2;
|
jbe@98
|
981 }
|
jbe@98
|
982 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
983 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
984 }
|
jbe@98
|
985 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
986 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
987 }
|
jbe@98
|
988 addrinfo = res;
|
jbe@98
|
989 moonbr_io_tcpconnect_found:
|
jbe@99
|
990 sock = socket(
|
jbe@134
|
991 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@99
|
992 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
993 addrinfo->ai_protocol
|
jbe@99
|
994 );
|
jbe@98
|
995 if (sock < 0) {
|
jbe@98
|
996 moonbr_io_errmsg();
|
jbe@108
|
997 freeaddrinfo(res);
|
jbe@98
|
998 lua_pushnil(L);
|
jbe@98
|
999 lua_pushstring(L, errmsg);
|
jbe@108
|
1000 return 2;
|
jbe@98
|
1001 }
|
jbe@98
|
1002 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1003 freeaddrinfo(res);
|
jbe@99
|
1004 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
1005 moonbr_io_errmsg();
|
jbe@99
|
1006 close(sock);
|
jbe@99
|
1007 lua_pushnil(L);
|
jbe@99
|
1008 lua_pushstring(L, errmsg);
|
jbe@99
|
1009 return 2;
|
jbe@99
|
1010 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
1011 moonbr_io_errmsg();
|
jbe@99
|
1012 lua_pushnil(L);
|
jbe@99
|
1013 lua_pushstring(L, errmsg);
|
jbe@99
|
1014 return 2;
|
jbe@99
|
1015 }
|
jbe@108
|
1016 } else {
|
jbe@108
|
1017 freeaddrinfo(res);
|
jbe@98
|
1018 }
|
jbe@107
|
1019 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
1020 return 1;
|
jbe@98
|
1021 }
|
jbe@98
|
1022
|
jbe@99
|
1023 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
1024 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
1025 }
|
jbe@99
|
1026
|
jbe@99
|
1027 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
1028 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
1029 }
|
jbe@99
|
1030
|
jbe@112
|
1031 static int moonbr_io_locallisten(lua_State *L) {
|
jbe@112
|
1032 moonbr_io_listener_t *listener;
|
jbe@112
|
1033 const char *path;
|
jbe@118
|
1034 struct stat sb;
|
jbe@112
|
1035 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@112
|
1036 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@112
|
1037 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@112
|
1038 ) - 1; /* one byte for termination */
|
jbe@112
|
1039 int sock;
|
jbe@112
|
1040 path = luaL_checkstring(L, 1);
|
jbe@112
|
1041 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@112
|
1042 strcpy(sockaddr.sun_path, path);
|
jbe@118
|
1043 if (stat(path, &sb) == 0) {
|
jbe@118
|
1044 if (S_ISSOCK(sb.st_mode)) unlink(path);
|
jbe@118
|
1045 }
|
jbe@112
|
1046 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1047 listener->fd = -1;
|
jbe@112
|
1048 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@112
|
1049 sock = socket(
|
jbe@112
|
1050 PF_LOCAL,
|
jbe@112
|
1051 SOCK_STREAM | SOCK_CLOEXEC,
|
jbe@112
|
1052 0
|
jbe@112
|
1053 );
|
jbe@112
|
1054 if (sock < 0) {
|
jbe@112
|
1055 moonbr_io_errmsg();
|
jbe@112
|
1056 lua_pushnil(L);
|
jbe@112
|
1057 lua_pushstring(L, errmsg);
|
jbe@112
|
1058 return 2;
|
jbe@112
|
1059 }
|
jbe@112
|
1060 if (bind(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@112
|
1061 moonbr_io_errmsg();
|
jbe@112
|
1062 close(sock);
|
jbe@112
|
1063 lua_pushnil(L);
|
jbe@112
|
1064 lua_pushstring(L, errmsg);
|
jbe@112
|
1065 return 2;
|
jbe@112
|
1066 }
|
jbe@112
|
1067 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@112
|
1068 moonbr_io_errmsg();
|
jbe@112
|
1069 close(sock);
|
jbe@112
|
1070 lua_pushnil(L);
|
jbe@112
|
1071 lua_pushstring(L, errmsg);
|
jbe@112
|
1072 return 2;
|
jbe@112
|
1073 }
|
jbe@112
|
1074 listener->fd = sock;
|
jbe@118
|
1075 listener->addrfam = AF_LOCAL;
|
jbe@112
|
1076 listener->nonblocking = -1;
|
jbe@112
|
1077 return 1;
|
jbe@112
|
1078 }
|
jbe@112
|
1079
|
jbe@108
|
1080 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
1081 moonbr_io_listener_t *listener;
|
jbe@108
|
1082 const char *host, *port;
|
jbe@108
|
1083 struct addrinfo hints = { 0, };
|
jbe@108
|
1084 struct addrinfo *res, *addrinfo;
|
jbe@108
|
1085 int errcode;
|
jbe@108
|
1086 int sock;
|
jbe@108
|
1087 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
1088 port = luaL_checkstring(L, 2);
|
jbe@108
|
1089 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@117
|
1090 listener->fd = -1;
|
jbe@108
|
1091 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1092 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
1093 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
1094 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
1095 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
1096 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
1097 if (errcode) {
|
jbe@108
|
1098 freeaddrinfo(res);
|
jbe@108
|
1099 if (errcode == EAI_SYSTEM) {
|
jbe@108
|
1100 moonbr_io_errmsg();
|
jbe@108
|
1101 lua_pushnil(L);
|
jbe@108
|
1102 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
1103 } else {
|
jbe@108
|
1104 lua_pushnil(L);
|
jbe@108
|
1105 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
1106 }
|
jbe@108
|
1107 return 2;
|
jbe@108
|
1108 }
|
jbe@108
|
1109 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1110 if (addrinfo->ai_family == AF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1111 }
|
jbe@108
|
1112 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@134
|
1113 if (addrinfo->ai_family == AF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
1114 }
|
jbe@108
|
1115 addrinfo = res;
|
jbe@108
|
1116 moonbr_io_tcpconnect_found:
|
jbe@118
|
1117 listener->addrfam = addrinfo->ai_family;
|
jbe@108
|
1118 sock = socket(
|
jbe@134
|
1119 addrinfo->ai_family, /* NOTE: not correctly using PF_* but AF_* constants here */
|
jbe@108
|
1120 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
1121 addrinfo->ai_protocol
|
jbe@108
|
1122 );
|
jbe@108
|
1123 if (sock < 0) {
|
jbe@108
|
1124 moonbr_io_errmsg();
|
jbe@108
|
1125 freeaddrinfo(res);
|
jbe@108
|
1126 lua_pushnil(L);
|
jbe@108
|
1127 lua_pushstring(L, errmsg);
|
jbe@108
|
1128 return 2;
|
jbe@108
|
1129 }
|
jbe@120
|
1130 {
|
jbe@120
|
1131 static const int reuseval = 1;
|
jbe@120
|
1132 if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &reuseval, sizeof(reuseval))) {
|
jbe@120
|
1133 moonbr_io_errmsg();
|
jbe@120
|
1134 freeaddrinfo(res);
|
jbe@120
|
1135 close(sock);
|
jbe@120
|
1136 lua_pushnil(L);
|
jbe@120
|
1137 lua_pushfstring(L, "Error while setting SO_REUSEADDR with setsockopt: %s", errmsg);
|
jbe@120
|
1138 return 2;
|
jbe@120
|
1139 }
|
jbe@120
|
1140 }
|
jbe@108
|
1141 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
1142 moonbr_io_errmsg();
|
jbe@108
|
1143 freeaddrinfo(res);
|
jbe@108
|
1144 close(sock);
|
jbe@108
|
1145 lua_pushnil(L);
|
jbe@108
|
1146 lua_pushstring(L, errmsg);
|
jbe@108
|
1147 return 2;
|
jbe@108
|
1148 }
|
jbe@108
|
1149 freeaddrinfo(res);
|
jbe@108
|
1150 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@108
|
1151 moonbr_io_errmsg();
|
jbe@108
|
1152 close(sock);
|
jbe@108
|
1153 lua_pushnil(L);
|
jbe@108
|
1154 lua_pushstring(L, errmsg);
|
jbe@108
|
1155 return 2;
|
jbe@108
|
1156 }
|
jbe@108
|
1157 listener->fd = sock;
|
jbe@108
|
1158 listener->nonblocking = -1;
|
jbe@108
|
1159 return 1;
|
jbe@108
|
1160 }
|
jbe@108
|
1161
|
jbe@108
|
1162 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
1163 moonbr_io_listener_t *listener;
|
jbe@108
|
1164 int fd;
|
jbe@108
|
1165 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1166 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
1167 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
1168 int flags;
|
jbe@108
|
1169 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
1170 if (flags == -1) {
|
jbe@108
|
1171 moonbr_io_errmsg();
|
jbe@108
|
1172 close(listener->fd);
|
jbe@108
|
1173 listener->fd = -1;
|
jbe@108
|
1174 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1175 }
|
jbe@108
|
1176 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
1177 else flags &= ~O_NONBLOCK;
|
jbe@108
|
1178 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@108
|
1179 moonbr_io_errmsg();
|
jbe@108
|
1180 close(listener->fd);
|
jbe@108
|
1181 listener->fd = -1;
|
jbe@108
|
1182 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
1183 }
|
jbe@108
|
1184 listener->nonblocking = nonblocking;
|
jbe@108
|
1185 }
|
jbe@108
|
1186 while (1) {
|
jbe@214
|
1187 #if defined(__linux__) && !defined(_GNU_SOURCE)
|
jbe@215
|
1188 fd = accept(listener->fd, NULL, NULL);
|
jbe@214
|
1189 if (fd != -1) {
|
jbe@214
|
1190 if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) {
|
jbe@214
|
1191 moonbr_io_errmsg();
|
jbe@214
|
1192 close(listener->fd);
|
jbe@214
|
1193 listener->fd = -1;
|
jbe@214
|
1194 close(fd);
|
jbe@214
|
1195 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@214
|
1196 }
|
jbe@214
|
1197 }
|
jbe@214
|
1198 #else
|
jbe@108
|
1199 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@214
|
1200 #endif
|
jbe@108
|
1201 if (fd < 0) {
|
jbe@108
|
1202 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
1203 lua_pushboolean(L, 0);
|
jbe@108
|
1204 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
1205 return 2;
|
jbe@108
|
1206 } else if (errno != EINTR) {
|
jbe@108
|
1207 moonbr_io_errmsg();
|
jbe@108
|
1208 lua_pushnil(L);
|
jbe@108
|
1209 lua_pushstring(L, errmsg);
|
jbe@108
|
1210 return 2;
|
jbe@108
|
1211 }
|
jbe@108
|
1212 } else {
|
jbe@108
|
1213 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
1214 return 1;
|
jbe@108
|
1215 }
|
jbe@108
|
1216 }
|
jbe@108
|
1217 }
|
jbe@108
|
1218
|
jbe@108
|
1219 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
1220 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
1221 }
|
jbe@108
|
1222
|
jbe@108
|
1223 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
1224 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
1225 }
|
jbe@108
|
1226
|
jbe@108
|
1227 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
1228 moonbr_io_listener_t *listener;
|
jbe@118
|
1229 struct sockaddr_un addr;
|
jbe@118
|
1230 socklen_t addrlen;
|
jbe@118
|
1231 struct stat sb;
|
jbe@108
|
1232 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1233 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@118
|
1234 addrlen = sizeof(addr);
|
jbe@118
|
1235 if (getsockname(listener->fd, (struct sockaddr *)&addr, &addrlen)) addrlen = 0;
|
jbe@108
|
1236 if (close(listener->fd)) {
|
jbe@108
|
1237 moonbr_io_errmsg();
|
jbe@108
|
1238 listener->fd = -1;
|
jbe@118
|
1239 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1240 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1241 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1242 }
|
jbe@118
|
1243 }
|
jbe@108
|
1244 lua_pushnil(L);
|
jbe@108
|
1245 lua_pushstring(L, errmsg);
|
jbe@108
|
1246 return 2;
|
jbe@108
|
1247 }
|
jbe@108
|
1248 listener->fd = -1;
|
jbe@118
|
1249 if (addrlen && addrlen <= sizeof(addr)) {
|
jbe@118
|
1250 if (stat(addr.sun_path, &sb) == 0) {
|
jbe@118
|
1251 if (S_ISSOCK(sb.st_mode)) unlink(addr.sun_path);
|
jbe@118
|
1252 }
|
jbe@118
|
1253 }
|
jbe@108
|
1254 lua_pushboolean(L, 1);
|
jbe@108
|
1255 return 1;
|
jbe@108
|
1256 }
|
jbe@108
|
1257
|
jbe@108
|
1258 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
1259 moonbr_io_listener_t *listener;
|
jbe@108
|
1260 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@117
|
1261 if (listener->fd >= 0) close(listener->fd);
|
jbe@108
|
1262 listener->fd = -1;
|
jbe@108
|
1263 return 0;
|
jbe@108
|
1264 }
|
jbe@108
|
1265
|
jbe@205
|
1266 static int moonbr_io_exec(lua_State *L) {
|
jbe@205
|
1267 char **argv;
|
jbe@205
|
1268 int i, argc;
|
jbe@205
|
1269 int sockin[2], sockout[2], sockerr[2];
|
jbe@205
|
1270 volatile int errorcond = 0;
|
jbe@213
|
1271 volatile char errmsgbuf[MOONBR_IO_MAXSTRERRORLEN] = MOONBR_IO_STRERROR_R_MSG;
|
jbe@205
|
1272 moonbr_io_child_t *child;
|
jbe@205
|
1273 argc = lua_gettop(L);
|
jbe@205
|
1274 argv = lua_newuserdata(L, (argc + 1) * sizeof(char *));
|
jbe@205
|
1275 for (i=0; i<argc; i++) argv[i] = (char *)luaL_checkstring(L, i+1);
|
jbe@205
|
1276 argv[argc] = NULL;
|
jbe@208
|
1277 child = lua_newuserdata(L, sizeof(moonbr_io_child_t));
|
jbe@208
|
1278 child->pid = 0;
|
jbe@208
|
1279 lua_newtable(L);
|
jbe@208
|
1280 lua_setuservalue(L, -2);
|
jbe@208
|
1281 luaL_getmetatable(L, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@208
|
1282 lua_setmetatable(L, -2);
|
jbe@206
|
1283 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockin)) {
|
jbe@205
|
1284 moonbr_io_errmsg();
|
jbe@205
|
1285 lua_pushnil(L);
|
jbe@205
|
1286 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1287 return 2;
|
jbe@205
|
1288 }
|
jbe@206
|
1289 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockout)) {
|
jbe@205
|
1290 moonbr_io_errmsg();
|
jbe@205
|
1291 close(sockin[0]);
|
jbe@205
|
1292 close(sockin[1]);
|
jbe@205
|
1293 lua_pushnil(L);
|
jbe@205
|
1294 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1295 return 2;
|
jbe@205
|
1296 }
|
jbe@206
|
1297 if (socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, sockerr)) {
|
jbe@205
|
1298 moonbr_io_errmsg();
|
jbe@205
|
1299 close(sockin[0]);
|
jbe@205
|
1300 close(sockin[1]);
|
jbe@205
|
1301 close(sockout[0]);
|
jbe@205
|
1302 close(sockout[1]);
|
jbe@205
|
1303 lua_pushnil(L);
|
jbe@205
|
1304 lua_pushfstring(L, "Could not create socket pair: %s", errmsg);
|
jbe@205
|
1305 return 2;
|
jbe@205
|
1306 }
|
jbe@205
|
1307 child->pid = vfork();
|
jbe@205
|
1308 if (child->pid == -1) {
|
jbe@205
|
1309 moonbr_io_errmsg();
|
jbe@205
|
1310 close(sockin[0]);
|
jbe@205
|
1311 close(sockin[1]);
|
jbe@205
|
1312 close(sockout[0]);
|
jbe@205
|
1313 close(sockout[1]);
|
jbe@205
|
1314 close(sockerr[0]);
|
jbe@205
|
1315 close(sockerr[1]);
|
jbe@205
|
1316 lua_pushnil(L);
|
jbe@205
|
1317 lua_pushfstring(L, "Could not fork: %s", errmsg);
|
jbe@205
|
1318 return 2;
|
jbe@205
|
1319 }
|
jbe@205
|
1320 if (!child->pid) {
|
jbe@208
|
1321 if (dup2(sockin[1], 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1322 if (dup2(sockout[1], 1) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1323 if (dup2(sockerr[1], 2) == -1) goto moonbr_io_exec_error1;
|
jbe@232
|
1324 closefrom(3);
|
jbe@208
|
1325 if (fcntl(0, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1326 if (fcntl(1, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@208
|
1327 if (fcntl(2, F_SETFD, 0) == -1) goto moonbr_io_exec_error1;
|
jbe@205
|
1328 if (execvp(argv[0], argv)) {
|
jbe@205
|
1329 errorcond = 2;
|
jbe@205
|
1330 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@205
|
1331 _exit(0);
|
jbe@205
|
1332 }
|
jbe@208
|
1333 moonbr_io_exec_error1:
|
jbe@206
|
1334 errorcond = 1;
|
jbe@206
|
1335 strerror_r(errno, (char *)errmsgbuf, MOONBR_IO_MAXSTRERRORLEN);
|
jbe@206
|
1336 _exit(0);
|
jbe@205
|
1337 }
|
jbe@205
|
1338 close(sockin[1]);
|
jbe@205
|
1339 close(sockout[1]);
|
jbe@205
|
1340 close(sockerr[1]);
|
jbe@205
|
1341 if (errorcond) {
|
jbe@205
|
1342 int status;
|
jbe@205
|
1343 close(sockin[0]);
|
jbe@205
|
1344 close(sockout[0]);
|
jbe@205
|
1345 close(sockerr[0]);
|
jbe@205
|
1346 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1347 if (errno != EINTR) {
|
jbe@205
|
1348 moonbr_io_errmsg();
|
jbe@205
|
1349 luaL_error(L, "Error in waitpid call after unsuccessful exec: %s", errmsg);
|
jbe@205
|
1350 }
|
jbe@205
|
1351 }
|
jbe@208
|
1352 child->pid = 0;
|
jbe@205
|
1353 lua_pushnil(L);
|
jbe@205
|
1354 if (errorcond == 2) lua_pushfstring(L, "Could not execute: %s", errmsgbuf);
|
jbe@205
|
1355 else lua_pushfstring(L, "Error in fork: %s", errmsgbuf);
|
jbe@205
|
1356 return 2;
|
jbe@205
|
1357 }
|
jbe@208
|
1358 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1359 lua_pushlightuserdata(L, &sockin[0]);
|
jbe@208
|
1360 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1361 if (sockin[0] != -1) close(sockin[0]);
|
jbe@208
|
1362 close(sockout[0]);
|
jbe@208
|
1363 close(sockerr[0]);
|
jbe@208
|
1364 goto moonbr_io_exec_error2;
|
jbe@208
|
1365 }
|
jbe@205
|
1366 lua_setfield(L, -2, "stdin");
|
jbe@208
|
1367 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1368 lua_pushlightuserdata(L, &sockout[0]);
|
jbe@208
|
1369 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1370 if (sockout[0] != -1) close(sockout[0]);
|
jbe@208
|
1371 close(sockerr[0]);
|
jbe@208
|
1372 goto moonbr_io_exec_error2;
|
jbe@208
|
1373 }
|
jbe@205
|
1374 lua_setfield(L, -2, "stdout");
|
jbe@208
|
1375 lua_pushcfunction(L, moonbr_io_pushhandle_impl);
|
jbe@208
|
1376 lua_pushlightuserdata(L, &sockerr[0]);
|
jbe@208
|
1377 if (lua_pcall(L, 1, 1, 0)) {
|
jbe@208
|
1378 if (sockerr[0] != -1) close(sockerr[0]);
|
jbe@208
|
1379 goto moonbr_io_exec_error2;
|
jbe@208
|
1380 }
|
jbe@205
|
1381 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1382 return 1;
|
jbe@208
|
1383 moonbr_io_exec_error2:
|
jbe@208
|
1384 {
|
jbe@208
|
1385 int status;
|
jbe@208
|
1386 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@208
|
1387 if (errno != EINTR) {
|
jbe@208
|
1388 moonbr_io_errmsg();
|
jbe@208
|
1389 luaL_error(L, "Error in waitpid call after error creating socket handles: %s", errmsg);
|
jbe@208
|
1390 }
|
jbe@208
|
1391 }
|
jbe@208
|
1392 }
|
jbe@208
|
1393 child->pid = 0;
|
jbe@208
|
1394 return lua_error(L);
|
jbe@205
|
1395 }
|
jbe@205
|
1396
|
jbe@205
|
1397 static int moonbr_io_childindex(lua_State *L) {
|
jbe@205
|
1398 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1399 luaL_checkany(L, 2);
|
jbe@205
|
1400 lua_getuservalue(L, 1);
|
jbe@205
|
1401 lua_pushvalue(L, 2);
|
jbe@205
|
1402 lua_gettable(L, -2);
|
jbe@205
|
1403 if (lua_isnil(L, -1)) {
|
jbe@205
|
1404 luaL_getmetatable(L, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1405 lua_pushvalue(L, 2);
|
jbe@205
|
1406 lua_gettable(L, -2);
|
jbe@205
|
1407 }
|
jbe@205
|
1408 return 1;
|
jbe@205
|
1409 }
|
jbe@205
|
1410
|
jbe@205
|
1411 static int moonbr_io_childnewindex(lua_State *L) {
|
jbe@205
|
1412 luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1413 luaL_checkany(L, 2);
|
jbe@205
|
1414 luaL_checkany(L, 3);
|
jbe@205
|
1415 lua_getuservalue(L, 1);
|
jbe@205
|
1416 lua_pushvalue(L, 2);
|
jbe@205
|
1417 lua_pushvalue(L, 3);
|
jbe@205
|
1418 lua_settable(L, -3);
|
jbe@205
|
1419 return 0;
|
jbe@205
|
1420 }
|
jbe@205
|
1421
|
jbe@205
|
1422 static int moonbr_io_childgc(lua_State *L) {
|
jbe@205
|
1423 moonbr_io_child_t *child;
|
jbe@205
|
1424 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1425 if (child->pid) {
|
jbe@205
|
1426 int status;
|
jbe@205
|
1427 if (kill(child->pid, SIGKILL)) {
|
jbe@205
|
1428 moonbr_io_errmsg();
|
jbe@205
|
1429 luaL_error(L, "Error in kill call during garbage collection: %s", errmsg);
|
jbe@205
|
1430 }
|
jbe@205
|
1431 while (waitpid(child->pid, &status, 0) == -1) {
|
jbe@205
|
1432 if (errno != EINTR) {
|
jbe@205
|
1433 moonbr_io_errmsg();
|
jbe@205
|
1434 luaL_error(L, "Error in waitpid call during garbage collection: %s", errmsg);
|
jbe@205
|
1435 }
|
jbe@205
|
1436 }
|
jbe@205
|
1437 }
|
jbe@205
|
1438 return 0;
|
jbe@205
|
1439 }
|
jbe@205
|
1440
|
jbe@205
|
1441 static int moonbr_io_kill(lua_State *L) {
|
jbe@205
|
1442 moonbr_io_child_t *child;
|
jbe@205
|
1443 int sig;
|
jbe@205
|
1444 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1445 sig = luaL_optinteger(L, 2, SIGTERM);
|
jbe@205
|
1446 if (!child->pid) luaL_error(L, "Attempt to kill an already collected child process");
|
jbe@205
|
1447 if (kill(child->pid, sig)) {
|
jbe@205
|
1448 moonbr_io_errmsg();
|
jbe@205
|
1449 luaL_error(L, "Error in kill call: %s", errmsg);
|
jbe@205
|
1450 }
|
jbe@205
|
1451 lua_settop(L, 1);
|
jbe@205
|
1452 return 1;
|
jbe@205
|
1453 }
|
jbe@205
|
1454
|
jbe@205
|
1455 static int moonbr_io_wait_impl(lua_State *L, int nonblocking) {
|
jbe@205
|
1456 moonbr_io_child_t *child;
|
jbe@205
|
1457 pid_t waitedpid;
|
jbe@205
|
1458 int status;
|
jbe@205
|
1459 child = luaL_checkudata(L, 1, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1460 if (!child->pid) luaL_error(L, "Attempt to wait for an already collected child process");
|
jbe@205
|
1461 while ((waitedpid = waitpid(child->pid, &status, nonblocking ? WNOHANG : 0)) == -1) {
|
jbe@205
|
1462 if (errno != EINTR) {
|
jbe@205
|
1463 moonbr_io_errmsg();
|
jbe@205
|
1464 luaL_error(L, "Error in waitpid call: %s", errmsg);
|
jbe@205
|
1465 }
|
jbe@205
|
1466 }
|
jbe@205
|
1467 if (!waitedpid) {
|
jbe@219
|
1468 lua_pushboolean(L, 0);
|
jbe@219
|
1469 lua_pushliteral(L, "Process is still running");
|
jbe@219
|
1470 return 2;
|
jbe@205
|
1471 } else {
|
jbe@205
|
1472 child->pid = 0;
|
jbe@205
|
1473 if (WIFEXITED(status)) {
|
jbe@205
|
1474 lua_pushinteger(L, WEXITSTATUS(status));
|
jbe@205
|
1475 } else if (WIFSIGNALED(status)) {
|
jbe@205
|
1476 lua_pushinteger(L, -WTERMSIG(status));
|
jbe@205
|
1477 } else {
|
jbe@205
|
1478 luaL_error(L, "Unexpected status value returned by waitpid call");
|
jbe@205
|
1479 }
|
jbe@219
|
1480 return 1;
|
jbe@205
|
1481 }
|
jbe@205
|
1482 }
|
jbe@205
|
1483
|
jbe@205
|
1484 static int moonbr_io_wait(lua_State *L) {
|
jbe@205
|
1485 return moonbr_io_wait_impl(L, 0);
|
jbe@205
|
1486 }
|
jbe@205
|
1487
|
jbe@205
|
1488 static int moonbr_io_wait_nb(lua_State *L) {
|
jbe@205
|
1489 return moonbr_io_wait_impl(L, 1);
|
jbe@205
|
1490 }
|
jbe@205
|
1491
|
jbe@205
|
1492 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1493 static int moonbr_io_wait_cont(lua_State *L, int status, lua_KContext ctx) {
|
jbe@205
|
1494 #else
|
jbe@205
|
1495 static int moonbr_io_wait_cont(lua_State *L) {
|
jbe@205
|
1496 #endif
|
jbe@205
|
1497 #if !(LUA_VERSION_NUM >= 503)
|
jbe@205
|
1498 int ctx = 0;
|
jbe@205
|
1499 lua_getctx(L, &ctx);
|
jbe@205
|
1500 #endif
|
jbe@205
|
1501 while (1) {
|
jbe@205
|
1502 lua_pushcfunction(L, moonbr_io_wait_nb);
|
jbe@205
|
1503 lua_pushvalue(L, 1);
|
jbe@205
|
1504 lua_call(L, 1, 1);
|
jbe@205
|
1505 if (!lua_isnil(L, -1)) break;
|
jbe@205
|
1506 lua_pushvalue(L, 2);
|
jbe@205
|
1507 lua_callk(L, 0, 0, ctx, moonbr_io_wait_cont);
|
jbe@205
|
1508 }
|
jbe@205
|
1509 return 1;
|
jbe@205
|
1510 }
|
jbe@205
|
1511
|
jbe@205
|
1512 static int moonbr_io_wait_call(lua_State *L) {
|
jbe@205
|
1513 lua_settop(L, 2);
|
jbe@205
|
1514 #if LUA_VERSION_NUM >= 503
|
jbe@205
|
1515 return moonbr_io_wait_cont(L, 0, 0);
|
jbe@205
|
1516 #else
|
jbe@205
|
1517 return moonbr_io_wait_cont(L);
|
jbe@205
|
1518 #endif
|
jbe@205
|
1519 }
|
jbe@205
|
1520
|
jbe@205
|
1521 moonbr_io_yield_wrapper(moonbr_io_wait_yield, moonbr_io_wait_call);
|
jbe@205
|
1522
|
jbe@106
|
1523 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
1524 moonbr_io_handle_t *handle;
|
jbe@108
|
1525 moonbr_io_listener_t *listener;
|
jbe@106
|
1526 int fd, isnum;
|
jbe@106
|
1527 int nfds = 0;
|
jbe@106
|
1528 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
1529 struct timeval timeout = {0, };
|
jbe@106
|
1530 int status;
|
jbe@106
|
1531 FD_ZERO(&readfds);
|
jbe@106
|
1532 FD_ZERO(&writefds);
|
jbe@106
|
1533 FD_ZERO(&exceptfds);
|
jbe@106
|
1534 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
1535 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
1536 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
1537 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1538 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1539 if (handle) {
|
jbe@109
|
1540 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
1541 fd = handle->fd;
|
jbe@122
|
1542 if (
|
jbe@122
|
1543 fd < 0 || /* fake EOF to simulate shutdown if fd < 0 */
|
jbe@122
|
1544 handle->readbufin != handle->readbufout /* data pending in buffer */
|
jbe@122
|
1545 ) {
|
jbe@109
|
1546 lua_pushboolean(L, 1);
|
jbe@109
|
1547 return 1;
|
jbe@109
|
1548 }
|
jbe@106
|
1549 } else {
|
jbe@108
|
1550 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1551 if (listener) {
|
jbe@108
|
1552 fd = listener->fd;
|
jbe@108
|
1553 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
1554 } else {
|
jbe@108
|
1555 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
1556 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
1557 }
|
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, &readfds);
|
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, 2)) {
|
jbe@106
|
1566 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
1567 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
1568 if (lua_toboolean(L, -1)) {
|
jbe@106
|
1569 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
1570 if (handle) {
|
jbe@109
|
1571 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
1572 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
1573 fd = handle->fd;
|
jbe@106
|
1574 } else {
|
jbe@108
|
1575 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
1576 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
1577 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
1578 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
1579 }
|
jbe@138
|
1580 if (fd < 0 || fd >= FD_SETSIZE) luaL_error(L, "File descriptor out of valid range");
|
jbe@106
|
1581 FD_SET(fd, &writefds);
|
jbe@106
|
1582 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
1583 }
|
jbe@106
|
1584 }
|
jbe@106
|
1585 }
|
jbe@106
|
1586 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
1587 lua_Number n;
|
jbe@106
|
1588 n = lua_tonumberx(L, 3, &isnum);
|
jbe@146
|
1589 if (isnum && n<0) {
|
jbe@146
|
1590 lua_pushboolean(L, 0);
|
jbe@146
|
1591 lua_pushliteral(L, "Negative timeout");
|
jbe@146
|
1592 return 2;
|
jbe@146
|
1593 } else if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
1594 timeout.tv_sec = n;
|
jbe@106
|
1595 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
1596 } else {
|
jbe@106
|
1597 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
1598 }
|
jbe@106
|
1599 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
1600 } else {
|
jbe@106
|
1601 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
1602 }
|
jbe@106
|
1603 if (status == -1) {
|
jbe@106
|
1604 if (errno == EINTR) {
|
jbe@146
|
1605 lua_pushnil(L);
|
jbe@106
|
1606 lua_pushliteral(L, "Signal received while polling file descriptors");
|
jbe@106
|
1607 return 2;
|
jbe@106
|
1608 } else {
|
jbe@106
|
1609 moonbr_io_errmsg();
|
jbe@106
|
1610 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
1611 }
|
jbe@106
|
1612 } else if (status == 0) {
|
jbe@106
|
1613 lua_pushboolean(L, 0);
|
jbe@106
|
1614 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
1615 return 2;
|
jbe@106
|
1616 } else {
|
jbe@106
|
1617 lua_pushboolean(L, 1);
|
jbe@106
|
1618 return 1;
|
jbe@106
|
1619 }
|
jbe@106
|
1620 }
|
jbe@106
|
1621
|
jbe@115
|
1622 static int moonbr_io_timeref(lua_State *L) {
|
jbe@115
|
1623 lua_Number sub;
|
jbe@115
|
1624 struct timespec tp;
|
jbe@115
|
1625 sub = luaL_optnumber(L, 1, 0);
|
jbe@115
|
1626 if (clock_gettime(CLOCK_MONOTONIC, &tp)) {
|
jbe@115
|
1627 return luaL_error(L, "Could not access CLOCK_MONOTONIC");
|
jbe@115
|
1628 }
|
jbe@115
|
1629 lua_pushnumber(L, tp.tv_sec + tp.tv_nsec / 1.0e9 - sub);
|
jbe@115
|
1630 return 1;
|
jbe@115
|
1631 }
|
jbe@115
|
1632
|
jbe@79
|
1633 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
1634 {"read", moonbr_io_read},
|
jbe@85
|
1635 {"read_nb", moonbr_io_read_nb},
|
jbe@140
|
1636 {"read_call", moonbr_io_read_call},
|
jbe@140
|
1637 {"read_yield", moonbr_io_read_yield},
|
jbe@86
|
1638 {"drain", moonbr_io_drain},
|
jbe@86
|
1639 {"drain_nb", moonbr_io_drain_nb},
|
jbe@144
|
1640 {"drain_call", moonbr_io_drain_call},
|
jbe@144
|
1641 {"drain_yield", moonbr_io_drain_yield},
|
jbe@80
|
1642 {"write", moonbr_io_write},
|
jbe@81
|
1643 {"write_nb", moonbr_io_write_nb},
|
jbe@145
|
1644 {"write_call", moonbr_io_write_call},
|
jbe@145
|
1645 {"write_yield", moonbr_io_write_yield},
|
jbe@80
|
1646 {"flush", moonbr_io_flush},
|
jbe@81
|
1647 {"flush_nb", moonbr_io_flush_nb},
|
jbe@145
|
1648 {"flush_call", moonbr_io_flush_call},
|
jbe@145
|
1649 {"flush_yield", moonbr_io_flush_yield},
|
jbe@88
|
1650 {"finish", moonbr_io_finish},
|
jbe@87
|
1651 {"close", moonbr_io_close},
|
jbe@85
|
1652 {"reset", moonbr_io_reset},
|
jbe@79
|
1653 {NULL, NULL}
|
jbe@79
|
1654 };
|
jbe@79
|
1655
|
jbe@79
|
1656 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1657 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1658 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1659 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1660 {NULL, NULL}
|
jbe@108
|
1661 };
|
jbe@108
|
1662
|
jbe@108
|
1663 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1664 {"accept", moonbr_io_accept},
|
jbe@108
|
1665 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1666 {"close", moonbr_io_unlisten},
|
jbe@108
|
1667 {NULL, NULL}
|
jbe@108
|
1668 };
|
jbe@108
|
1669
|
jbe@108
|
1670 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1671 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1672 {NULL, NULL}
|
jbe@79
|
1673 };
|
jbe@79
|
1674
|
jbe@205
|
1675 static const struct luaL_Reg moonbr_io_child_methods[] = {
|
jbe@205
|
1676 {"kill", moonbr_io_kill},
|
jbe@205
|
1677 {"wait", moonbr_io_wait},
|
jbe@205
|
1678 {"wait_nb", moonbr_io_wait_nb},
|
jbe@205
|
1679 {"wait_call", moonbr_io_wait_call},
|
jbe@205
|
1680 {"wait_yield", moonbr_io_wait_yield},
|
jbe@205
|
1681 {NULL, NULL}
|
jbe@205
|
1682 };
|
jbe@205
|
1683
|
jbe@205
|
1684 static const struct luaL_Reg moonbr_io_child_metamethods[] = {
|
jbe@205
|
1685 {"__index", moonbr_io_childindex},
|
jbe@205
|
1686 {"__newindex", moonbr_io_childnewindex},
|
jbe@205
|
1687 {"__gc", moonbr_io_childgc},
|
jbe@205
|
1688 {NULL, NULL}
|
jbe@205
|
1689 };
|
jbe@205
|
1690
|
jbe@79
|
1691 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1692 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1693 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1694 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1695 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@112
|
1696 {"locallisten", moonbr_io_locallisten},
|
jbe@108
|
1697 {"tcplisten", moonbr_io_tcplisten},
|
jbe@205
|
1698 {"exec", moonbr_io_exec},
|
jbe@106
|
1699 {"poll", moonbr_io_poll},
|
jbe@115
|
1700 {"timeref", moonbr_io_timeref},
|
jbe@79
|
1701 {NULL, NULL}
|
jbe@79
|
1702 };
|
jbe@79
|
1703
|
jbe@79
|
1704 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
1705
|
jbe@113
|
1706 signal(SIGPIPE, SIG_IGN); /* generate I/O errors instead of signal 13 */
|
jbe@113
|
1707
|
jbe@80
|
1708 lua_newtable(L); // module
|
jbe@80
|
1709
|
jbe@79
|
1710 lua_newtable(L); // public metatable
|
jbe@79
|
1711 lua_newtable(L); // handle methods
|
jbe@79
|
1712 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
1713 lua_pushvalue(L, -1);
|
jbe@146
|
1714 lua_setfield(L, -4, "handle_pt");
|
jbe@79
|
1715 lua_setfield(L, -2, "__index");
|
jbe@79
|
1716 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1717
|
jbe@79
|
1718 lua_newtable(L); // handle metatable
|
jbe@79
|
1719 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@146
|
1720 lua_pushvalue(L, -1);
|
jbe@146
|
1721 lua_setfield(L, -3, "handle_mt");
|
jbe@79
|
1722 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
1723
|
jbe@108
|
1724 lua_newtable(L); // listener metatable
|
jbe@108
|
1725 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
1726 lua_newtable(L); // listener methods
|
jbe@108
|
1727 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
1728 lua_pushvalue(L, -1);
|
jbe@146
|
1729 lua_setfield(L, -4, "listener_pt");
|
jbe@108
|
1730 lua_setfield(L, -2, "__index");
|
jbe@146
|
1731 lua_pushvalue(L, -1);
|
jbe@146
|
1732 lua_setfield(L, -3, "listener_mt");
|
jbe@108
|
1733 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1734
|
jbe@205
|
1735 lua_newtable(L); // child methods
|
jbe@205
|
1736 luaL_setfuncs(L, moonbr_io_child_methods, 0);
|
jbe@205
|
1737 lua_pushvalue(L, -1);
|
jbe@205
|
1738 lua_setfield(L, -3, "child_pt");
|
jbe@205
|
1739 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_PT_REGKEY);
|
jbe@205
|
1740 lua_newtable(L); // child metatable
|
jbe@205
|
1741 luaL_setfuncs(L, moonbr_io_child_metamethods, 0);
|
jbe@205
|
1742 lua_pushvalue(L, -1);
|
jbe@205
|
1743 lua_setfield(L, -3, "child_mt");
|
jbe@205
|
1744 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_CHILD_MT_REGKEY);
|
jbe@205
|
1745
|
jbe@205
|
1746 moonbr_io_pushhandle(L, 0);
|
jbe@205
|
1747 lua_setfield(L, -2, "stdin");
|
jbe@205
|
1748 moonbr_io_pushhandle(L, 1);
|
jbe@205
|
1749 lua_setfield(L, -2, "stdout");
|
jbe@205
|
1750 moonbr_io_pushhandle(L, 2);
|
jbe@205
|
1751 lua_setfield(L, -2, "stderr");
|
jbe@205
|
1752
|
jbe@79
|
1753 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
1754 return 1;
|
jbe@79
|
1755
|
jbe@79
|
1756 }
|
jbe@79
|
1757
|