rev |
line source |
jbe@79
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1
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jbe@79
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2 #include <stdlib.h>
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jbe@79
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3 #include <unistd.h>
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jbe@79
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4 #include <stdint.h>
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jbe@79
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5 #include <errno.h>
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jbe@79
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6 #include <string.h>
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jbe@79
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7 #include <sys/socket.h>
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jbe@79
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8 #include <sys/select.h>
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jbe@81
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9 #include <fcntl.h>
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jbe@79
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10
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jbe@79
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11 #include <lua.h>
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jbe@79
|
12 #include <lauxlib.h>
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jbe@79
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13 #include <lualib.h>
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jbe@79
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14
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jbe@80
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15 #define MOONBR_IO_MAXSTRERRORLEN 80
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jbe@85
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16 #define MOONBR_IO_READBUFLEN 4096
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jbe@80
|
17 #define MOONBR_IO_WRITEBUFLEN 4096
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jbe@80
|
18
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jbe@80
|
19 #define moonbr_io_errmsg() \
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jbe@80
|
20 char errmsg[MOONBR_IO_MAXSTRERRORLEN]; \
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jbe@80
|
21 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
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jbe@80
|
22
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jbe@79
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23 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
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jbe@79
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24 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
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jbe@79
|
25
|
jbe@79
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26 typedef struct {
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jbe@79
|
27 int fd;
|
jbe@84
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28 int issocket;
|
jbe@88
|
29 int canshutdown;
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jbe@88
|
30 int shutwr;
|
jbe@81
|
31 int nonblocking;
|
jbe@85
|
32 int readerr;
|
jbe@85
|
33 int readbufcnt;
|
jbe@81
|
34 int writeerr;
|
jbe@83
|
35 size_t writeleft;
|
jbe@83
|
36 #if LUA_VERSION_NUM >= 503
|
jbe@83
|
37 lua_Integer writeqin;
|
jbe@83
|
38 lua_Integer writeqout;
|
jbe@83
|
39 #else
|
jbe@83
|
40 int writeqin;
|
jbe@83
|
41 int writeqout;
|
jbe@83
|
42 #endif
|
jbe@83
|
43 size_t writeqoff;
|
jbe@81
|
44 int writebufcnt;
|
jbe@85
|
45 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
46 char writebuf[MOONBR_IO_WRITEBUFLEN];
|
jbe@79
|
47 } moonbr_io_handle_t;
|
jbe@79
|
48
|
jbe@81
|
49 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@81
|
50 if (handle->nonblocking != nonblocking) {
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jbe@81
|
51 int flags;
|
jbe@81
|
52 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@81
|
53 if (flags == -1) {
|
jbe@81
|
54 moonbr_io_errmsg();
|
jbe@81
|
55 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@81
|
56 }
|
jbe@81
|
57 if (nonblocking) flags |= O_NONBLOCK;
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jbe@81
|
58 else flags &= ~O_NONBLOCK;
|
jbe@81
|
59 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
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jbe@81
|
60 moonbr_io_errmsg();
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jbe@81
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61 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@81
|
62 }
|
jbe@81
|
63 }
|
jbe@81
|
64 }
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jbe@81
|
65
|
jbe@87
|
66 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
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jbe@87
|
67 struct linger lingerval = { 0, };
|
jbe@87
|
68 if (!handle->issocket) return;
|
jbe@87
|
69 if (timeout >= 0) {
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jbe@87
|
70 lingerval.l_onoff = 1;
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jbe@87
|
71 lingerval.l_linger = timeout;
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jbe@87
|
72 }
|
jbe@87
|
73 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
|
74 moonbr_io_errmsg();
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jbe@87
|
75 luaL_error(L, "Unexpected error in setsockopt call: %s", errmsg);
|
jbe@87
|
76 }
|
jbe@87
|
77 }
|
jbe@87
|
78
|
jbe@86
|
79 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
|
80 moonbr_io_handle_t *handle;
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jbe@85
|
81 lua_Integer maxread;
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jbe@85
|
82 const char *terminatorstr;
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jbe@85
|
83 size_t terminatorlen;
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jbe@85
|
84 char terminator;
|
jbe@85
|
85 luaL_Buffer luabuf;
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jbe@85
|
86 size_t luabufcnt = 0;
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jbe@86
|
87 int endcnt;
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jbe@85
|
88 char *terminatorpos;
|
jbe@85
|
89 ssize_t result;
|
jbe@85
|
90 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@85
|
91 maxread = luaL_optinteger(L, 2, 0);
|
jbe@85
|
92 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
93 if (terminatorlen) {
|
jbe@85
|
94 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
|
95 terminator = terminatorstr[0];
|
jbe@85
|
96 }
|
jbe@86
|
97 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@85
|
98 if (handle->fd < 0) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
|
99 if (handle->readerr) {
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jbe@85
|
100 lua_pushnil(L);
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jbe@85
|
101 lua_pushliteral(L, "Previous read error");
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jbe@85
|
102 return 2;
|
jbe@85
|
103 }
|
jbe@85
|
104 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
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jbe@86
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105 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
106 while (1) {
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jbe@86
|
107 endcnt = -1;
|
jbe@85
|
108 if (maxread > 0 && handle->readbufcnt >= maxread - luabufcnt) {
|
jbe@86
|
109 endcnt = maxread - luabufcnt;
|
jbe@85
|
110 } else if (terminatorlen) {
|
jbe@85
|
111 terminatorpos = memchr(handle->readbuf, terminator, handle->readbufcnt);
|
jbe@86
|
112 if (terminatorpos) endcnt = 1 + (terminatorpos - handle->readbuf);
|
jbe@85
|
113 }
|
jbe@86
|
114 if (endcnt >= 0) {
|
jbe@86
|
115 if (!drain) {
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jbe@86
|
116 luaL_addlstring(&luabuf, handle->readbuf, endcnt);
|
jbe@86
|
117 luaL_pushresult(&luabuf);
|
jbe@90
|
118 } else {
|
jbe@90
|
119 luabufcnt += handle->readbufcnt;
|
jbe@90
|
120 lua_pushinteger(L, luabufcnt);
|
jbe@86
|
121 }
|
jbe@86
|
122 handle->readbufcnt -= endcnt;
|
jbe@86
|
123 memmove(handle->readbuf, handle->readbuf + endcnt, handle->readbufcnt);
|
jbe@85
|
124 return 1;
|
jbe@85
|
125 }
|
jbe@86
|
126 if (!drain) luaL_addlstring(&luabuf, handle->readbuf, handle->readbufcnt);
|
jbe@85
|
127 luabufcnt += handle->readbufcnt;
|
jbe@85
|
128 handle->readbufcnt = 0;
|
jbe@85
|
129 do {
|
jbe@85
|
130 result = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@85
|
131 } while (result < 0 && (errno == EINTR));
|
jbe@85
|
132 if (result == 0 || (nonblocking && result < 0 && (errno == EAGAIN || errno == EWOULDBLOCK))) break;
|
jbe@85
|
133 if (result < 0) {
|
jbe@85
|
134 moonbr_io_errmsg();
|
jbe@85
|
135 handle->readerr = 1;
|
jbe@85
|
136 lua_pushnil(L);
|
jbe@85
|
137 lua_pushstring(L, errmsg);
|
jbe@85
|
138 return 2;
|
jbe@85
|
139 }
|
jbe@85
|
140 handle->readbufcnt += result;
|
jbe@85
|
141 }
|
jbe@86
|
142 if (!drain) {
|
jbe@86
|
143 luaL_addlstring(&luabuf, handle->readbuf, handle->readbufcnt);
|
jbe@86
|
144 luaL_pushresult(&luabuf);
|
jbe@86
|
145 }
|
jbe@90
|
146 luabufcnt += handle->readbufcnt;
|
jbe@85
|
147 handle->readbufcnt = 0;
|
jbe@90
|
148 if (!drain) {
|
jbe@90
|
149 if (!luabufcnt && result == 0) {
|
jbe@90
|
150 lua_pushboolean(L, 0);
|
jbe@90
|
151 lua_pushliteral(L, "End of file");
|
jbe@90
|
152 return 2;
|
jbe@90
|
153 }
|
jbe@90
|
154 } else {
|
jbe@90
|
155 if (!luabufcnt && result == 0) lua_pushboolean(L, 1);
|
jbe@90
|
156 else lua_pushboolean(L, luabufcnt);
|
jbe@90
|
157 }
|
jbe@85
|
158 return 1;
|
jbe@85
|
159 }
|
jbe@85
|
160
|
jbe@85
|
161 static int moonbr_io_read(lua_State *L) {
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jbe@86
|
162 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
163 }
|
jbe@85
|
164
|
jbe@85
|
165 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
166 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
167 }
|
jbe@86
|
168
|
jbe@86
|
169 static int moonbr_io_drain(lua_State *L) {
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jbe@86
|
170 return moonbr_io_read_impl(L, 0, 1);
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jbe@86
|
171 }
|
jbe@86
|
172
|
jbe@86
|
173 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
174 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
175 }
|
jbe@85
|
176
|
jbe@81
|
177 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
178 moonbr_io_handle_t *handle;
|
jbe@80
|
179 int i, top;
|
jbe@80
|
180 const char *str;
|
jbe@81
|
181 size_t strlen, strpos;
|
jbe@80
|
182 size_t written;
|
jbe@80
|
183 ssize_t result;
|
jbe@80
|
184 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@83
|
185 if (handle->fd < 0) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@88
|
186 if (handle->shutwr) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
187 if (handle->writeerr) {
|
jbe@80
|
188 lua_pushnil(L);
|
jbe@80
|
189 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
190 return 2;
|
jbe@80
|
191 }
|
jbe@81
|
192 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
193 top = lua_gettop(L);
|
jbe@81
|
194 lua_getuservalue(L, 1);
|
jbe@81
|
195 lua_getfield(L, -1, "writebuf");
|
jbe@84
|
196 for (i=2; i<=top; i++) {
|
jbe@84
|
197 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
198 lua_pushvalue(L, i);
|
jbe@84
|
199 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
200 handle->writeleft += strlen;
|
jbe@81
|
201 }
|
jbe@83
|
202 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
203 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
204 str = lua_tolstring(L, -1, &strlen);
|
jbe@81
|
205 strpos = handle->writeqoff;
|
jbe@81
|
206 while (strpos < strlen) {
|
jbe@81
|
207 if (strlen - strpos < MOONBR_IO_WRITEBUFLEN - handle->writebufcnt) {
|
jbe@81
|
208 memcpy(handle->writebuf + handle->writebufcnt, str + strpos, strlen - strpos);
|
jbe@81
|
209 handle->writebufcnt += strlen - strpos;
|
jbe@80
|
210 break;
|
jbe@80
|
211 } else {
|
jbe@80
|
212 written = 0;
|
jbe@81
|
213 memcpy(handle->writebuf + handle->writebufcnt, str + strpos, MOONBR_IO_WRITEBUFLEN - handle->writebufcnt);
|
jbe@81
|
214 strpos += MOONBR_IO_WRITEBUFLEN - handle->writebufcnt;
|
jbe@80
|
215 while (written < MOONBR_IO_WRITEBUFLEN) {
|
jbe@80
|
216 result = write(handle->fd, handle->writebuf + written, MOONBR_IO_WRITEBUFLEN - written);
|
jbe@80
|
217 if (result < 0) {
|
jbe@81
|
218 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
219 if (written) {
|
jbe@81
|
220 handle->writebufcnt -= written;
|
jbe@81
|
221 memmove(handle->writebuf, handle->writebuf + written, handle->writebufcnt);
|
jbe@81
|
222 }
|
jbe@81
|
223 handle->writeqoff = strpos;
|
jbe@81
|
224 goto moonbr_io_write_impl_block;
|
jbe@81
|
225 } else if (errno != EINTR) {
|
jbe@80
|
226 moonbr_io_errmsg();
|
jbe@81
|
227 handle->writeerr = 1;
|
jbe@80
|
228 lua_pushnil(L);
|
jbe@80
|
229 lua_pushstring(L, errmsg);
|
jbe@80
|
230 return 2;
|
jbe@80
|
231 }
|
jbe@80
|
232 } else {
|
jbe@80
|
233 written += result;
|
jbe@81
|
234 handle->writeleft -= result;
|
jbe@80
|
235 }
|
jbe@80
|
236 }
|
jbe@81
|
237 handle->writebufcnt = 0;
|
jbe@80
|
238 }
|
jbe@80
|
239 }
|
jbe@81
|
240 handle->writeqoff = 0;
|
jbe@81
|
241 lua_pop(L, 1);
|
jbe@81
|
242 lua_pushnil(L);
|
jbe@83
|
243 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
244 }
|
jbe@81
|
245 if (flush) {
|
jbe@81
|
246 written = 0;
|
jbe@81
|
247 while (written < handle->writebufcnt) {
|
jbe@81
|
248 result = write(handle->fd, handle->writebuf + written, handle->writebufcnt - written);
|
jbe@81
|
249 if (result < 0) {
|
jbe@81
|
250 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
251 if (written) {
|
jbe@81
|
252 handle->writebufcnt -= written;
|
jbe@81
|
253 memmove(handle->writebuf, handle->writebuf + written, handle->writebufcnt);
|
jbe@81
|
254 }
|
jbe@81
|
255 goto moonbr_io_write_impl_block;
|
jbe@81
|
256 } else if (errno != EINTR) {
|
jbe@81
|
257 moonbr_io_errmsg();
|
jbe@81
|
258 handle->writeerr = -1;
|
jbe@81
|
259 lua_pushnil(L);
|
jbe@81
|
260 lua_pushstring(L, errmsg);
|
jbe@81
|
261 return 2;
|
jbe@81
|
262 }
|
jbe@81
|
263 } else {
|
jbe@81
|
264 written += result;
|
jbe@81
|
265 handle->writeleft -= result;
|
jbe@81
|
266 }
|
jbe@81
|
267 }
|
jbe@81
|
268 handle->writebufcnt = 0;
|
jbe@82
|
269 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@81
|
270 } else {
|
jbe@82
|
271 if (nonblocking) lua_pushinteger(L, handle->writeleft - handle->writebufcnt);
|
jbe@81
|
272 }
|
jbe@82
|
273 if (!nonblocking) lua_pushvalue(L, 1);
|
jbe@80
|
274 return 1;
|
jbe@81
|
275 moonbr_io_write_impl_block:
|
jbe@81
|
276 if (flush) lua_pushinteger(L, handle->writeleft);
|
jbe@81
|
277 else lua_pushinteger(L, handle->writeleft - handle->writebufcnt);
|
jbe@81
|
278 return 1;
|
jbe@81
|
279 }
|
jbe@81
|
280
|
jbe@81
|
281 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
282 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
283 }
|
jbe@81
|
284
|
jbe@81
|
285 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
286 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
287 }
|
jbe@80
|
288
|
jbe@80
|
289 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
290 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
291 }
|
jbe@81
|
292
|
jbe@81
|
293 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
294 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
295 }
|
jbe@80
|
296
|
jbe@88
|
297 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
298 moonbr_io_handle_t *handle;
|
jbe@88
|
299 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
300 if (handle->fd < 0) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@88
|
301 if (handle->shutwr) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@88
|
302 handle->shutwr = 1;
|
jbe@88
|
303 if (handle->canshutdown) {
|
jbe@88
|
304 if (handle->writeleft) {
|
jbe@88
|
305 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@88
|
306 lua_pushvalue(L, 1);
|
jbe@88
|
307 lua_call(L, 1, 2);
|
jbe@88
|
308 if (!lua_toboolean(L, -2)) return 2;
|
jbe@88
|
309 }
|
jbe@88
|
310 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
311 moonbr_io_errmsg();
|
jbe@88
|
312 lua_pushnil(L);
|
jbe@88
|
313 lua_pushstring(L, errmsg);
|
jbe@88
|
314 return 2;
|
jbe@88
|
315 }
|
jbe@88
|
316 }
|
jbe@88
|
317 lua_pushboolean(L, 1);
|
jbe@88
|
318 return 1;
|
jbe@88
|
319 }
|
jbe@88
|
320
|
jbe@87
|
321 static int moonbr_io_close(lua_State *L) {
|
jbe@83
|
322 moonbr_io_handle_t *handle;
|
jbe@87
|
323 int timeout;
|
jbe@83
|
324 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@87
|
325 timeout = luaL_optinteger(L, 2, -1);
|
jbe@83
|
326 if (handle->fd < 0) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@87
|
327 if (timeout != 0) {
|
jbe@87
|
328 if (handle->writeleft) {
|
jbe@87
|
329 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
330 lua_pushvalue(L, 1);
|
jbe@87
|
331 lua_call(L, 1, 2);
|
jbe@87
|
332 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
333 close(handle->fd);
|
jbe@87
|
334 handle->fd = -1;
|
jbe@87
|
335 return 2;
|
jbe@87
|
336 }
|
jbe@83
|
337 }
|
jbe@87
|
338 moonbr_io_handle_set_linger(L, handle, timeout);
|
jbe@83
|
339 }
|
jbe@83
|
340 if (close(handle->fd)) {
|
jbe@83
|
341 moonbr_io_errmsg();
|
jbe@83
|
342 handle->fd = -1;
|
jbe@83
|
343 lua_pushnil(L);
|
jbe@83
|
344 lua_pushstring(L, errmsg);
|
jbe@83
|
345 return 2;
|
jbe@83
|
346 }
|
jbe@83
|
347 handle->fd = -1;
|
jbe@83
|
348 lua_pushboolean(L, 1);
|
jbe@83
|
349 return 1;
|
jbe@84
|
350
|
jbe@83
|
351 }
|
jbe@83
|
352
|
jbe@84
|
353 static int moonbr_io_reset(lua_State *L) {
|
jbe@87
|
354 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@87
|
355 lua_settop(L, 1);
|
jbe@87
|
356 lua_pushcfunction(L, moonbr_io_close);
|
jbe@87
|
357 lua_insert(L, 1);
|
jbe@87
|
358 lua_pushinteger(L, 0);
|
jbe@87
|
359 lua_call(L, 2, LUA_MULTRET);
|
jbe@87
|
360 return lua_gettop(L);
|
jbe@84
|
361 }
|
jbe@84
|
362
|
jbe@88
|
363 static int moonbr_io_gc(lua_State *L) {
|
jbe@88
|
364 moonbr_io_handle_t *handle;
|
jbe@88
|
365 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
366 if (handle->fd >= 0) {
|
jbe@88
|
367 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
368 lua_pushvalue(L, 1);
|
jbe@88
|
369 lua_pushinteger(L, 0);
|
jbe@88
|
370 lua_call(L, 2, 0);
|
jbe@88
|
371 }
|
jbe@88
|
372 return 0;
|
jbe@88
|
373 }
|
jbe@88
|
374
|
jbe@88
|
375 void moonbr_io_closehandle(lua_State *L, int idx, int timeout) {
|
jbe@88
|
376 moonbr_io_handle_t *handle;
|
jbe@88
|
377 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
378 if (handle->fd >= 0) {
|
jbe@88
|
379 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
380 lua_pushvalue(L, idx);
|
jbe@88
|
381 lua_pushinteger(L, timeout);
|
jbe@88
|
382 lua_call(L, 2, 0);
|
jbe@88
|
383 }
|
jbe@88
|
384 }
|
jbe@88
|
385
|
jbe@88
|
386 void moonbr_io_pushhandle(lua_State *L, int fd, int issocket, int canshutdown) {
|
jbe@79
|
387 moonbr_io_handle_t *handle;
|
jbe@79
|
388 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@79
|
389 handle->fd = fd;
|
jbe@84
|
390 handle->issocket = issocket;
|
jbe@88
|
391 handle->canshutdown = canshutdown;
|
jbe@88
|
392 handle->shutwr = 0;
|
jbe@81
|
393 handle->nonblocking = -1;
|
jbe@85
|
394 handle->readerr = 0;
|
jbe@85
|
395 handle->readbufcnt = 0;
|
jbe@81
|
396 handle->writeerr = 0;
|
jbe@81
|
397 handle->writeleft = 0;
|
jbe@83
|
398 handle->writeqin = 0;
|
jbe@83
|
399 handle->writeqout = 0;
|
jbe@81
|
400 handle->writeqoff = 0;
|
jbe@81
|
401 handle->writebufcnt = 0;
|
jbe@87
|
402 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@79
|
403 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
404 lua_setmetatable(L, -2);
|
jbe@79
|
405 lua_newtable(L); // uservalue
|
jbe@81
|
406 lua_newtable(L);
|
jbe@81
|
407 lua_setfield(L, -2, "writebuf");
|
jbe@79
|
408 lua_newtable(L); // public
|
jbe@79
|
409 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
410 lua_setmetatable(L, -2);
|
jbe@79
|
411 lua_setfield(L, -2, "public");
|
jbe@79
|
412 lua_setuservalue(L, -2);
|
jbe@79
|
413 }
|
jbe@79
|
414
|
jbe@79
|
415 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
416 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
417 lua_getuservalue(L, 1);
|
jbe@79
|
418 lua_getfield(L, -1, "public");
|
jbe@79
|
419 lua_pushvalue(L, 2);
|
jbe@79
|
420 lua_gettable(L, -2);
|
jbe@79
|
421 return 1;
|
jbe@79
|
422 }
|
jbe@79
|
423
|
jbe@79
|
424 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
425 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
426 lua_getuservalue(L, 1);
|
jbe@79
|
427 lua_getfield(L, -1, "public");
|
jbe@79
|
428 lua_pushvalue(L, 2);
|
jbe@79
|
429 lua_pushvalue(L, 3);
|
jbe@79
|
430 lua_settable(L, -3);
|
jbe@79
|
431 return 0;
|
jbe@79
|
432 }
|
jbe@79
|
433
|
jbe@79
|
434 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
435 {"read", moonbr_io_read},
|
jbe@85
|
436 {"read_nb", moonbr_io_read_nb},
|
jbe@86
|
437 {"drain", moonbr_io_drain},
|
jbe@86
|
438 {"drain_nb", moonbr_io_drain_nb},
|
jbe@80
|
439 {"write", moonbr_io_write},
|
jbe@81
|
440 {"write_nb", moonbr_io_write_nb},
|
jbe@80
|
441 {"flush", moonbr_io_flush},
|
jbe@81
|
442 {"flush_nb", moonbr_io_flush_nb},
|
jbe@88
|
443 {"finish", moonbr_io_finish},
|
jbe@87
|
444 {"close", moonbr_io_close},
|
jbe@85
|
445 {"reset", moonbr_io_reset},
|
jbe@79
|
446 {NULL, NULL}
|
jbe@79
|
447 };
|
jbe@79
|
448
|
jbe@79
|
449 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
450 {"__index", moonbr_io_handleindex},
|
jbe@79
|
451 {"__newindex", moonbr_io_handlenewindex},
|
jbe@88
|
452 {"__gc", moonbr_io_gc},
|
jbe@79
|
453 {NULL, NULL}
|
jbe@79
|
454 };
|
jbe@79
|
455
|
jbe@79
|
456 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@79
|
457 {NULL, NULL}
|
jbe@79
|
458 };
|
jbe@79
|
459
|
jbe@79
|
460 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
461
|
jbe@80
|
462 lua_newtable(L); // module
|
jbe@80
|
463
|
jbe@79
|
464 lua_newtable(L); // public metatable
|
jbe@79
|
465 lua_newtable(L); // handle methods
|
jbe@79
|
466 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
467 lua_pushvalue(L, -1);
|
jbe@80
|
468 lua_setfield(L, -4, "handle");
|
jbe@79
|
469 lua_setfield(L, -2, "__index");
|
jbe@79
|
470 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
471
|
jbe@79
|
472 lua_newtable(L); // handle metatable
|
jbe@79
|
473 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@79
|
474 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
475
|
jbe@79
|
476 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
477 return 1;
|
jbe@79
|
478
|
jbe@79
|
479 }
|
jbe@79
|
480
|