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
|
9 #include <fcntl.h>
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jbe@95
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10 #include <netinet/in.h>
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jbe@95
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11 #include <netinet/tcp.h>
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jbe@98
|
12 #include <sys/types.h>
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jbe@98
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13 #include <netdb.h>
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jbe@79
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14
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jbe@79
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15 #include <lua.h>
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jbe@79
|
16 #include <lauxlib.h>
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jbe@79
|
17 #include <lualib.h>
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jbe@79
|
18
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jbe@80
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19 #define MOONBR_IO_MAXSTRERRORLEN 80
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jbe@85
|
20 #define MOONBR_IO_READBUFLEN 4096
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jbe@80
|
21 #define MOONBR_IO_WRITEBUFLEN 4096
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jbe@80
|
22
|
jbe@80
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23 #define moonbr_io_errmsg() \
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jbe@80
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24 char errmsg[MOONBR_IO_MAXSTRERRORLEN]; \
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jbe@80
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25 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
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jbe@80
|
26
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jbe@79
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27 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
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jbe@79
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28 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
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jbe@79
|
29
|
jbe@79
|
30 typedef struct {
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jbe@79
|
31 int fd;
|
jbe@95
|
32 int isnetwork;
|
jbe@94
|
33 int finished;
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jbe@94
|
34 int closed;
|
jbe@81
|
35 int nonblocking;
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jbe@95
|
36 int nopush;
|
jbe@85
|
37 int readerr;
|
jbe@85
|
38 int readbufcnt;
|
jbe@81
|
39 int writeerr;
|
jbe@83
|
40 size_t writeleft;
|
jbe@83
|
41 #if LUA_VERSION_NUM >= 503
|
jbe@83
|
42 lua_Integer writeqin;
|
jbe@83
|
43 lua_Integer writeqout;
|
jbe@83
|
44 #else
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jbe@83
|
45 int writeqin;
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jbe@83
|
46 int writeqout;
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jbe@83
|
47 #endif
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jbe@83
|
48 size_t writeqoff;
|
jbe@81
|
49 int writebufcnt;
|
jbe@85
|
50 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
51 char writebuf[MOONBR_IO_WRITEBUFLEN];
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jbe@79
|
52 } moonbr_io_handle_t;
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jbe@79
|
53
|
jbe@81
|
54 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
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55 int flags;
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jbe@95
|
56 if (handle->nonblocking == nonblocking) return;
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jbe@95
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57 flags = fcntl(handle->fd, F_GETFL, 0);
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jbe@95
|
58 if (flags == -1) {
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jbe@95
|
59 moonbr_io_errmsg();
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jbe@96
|
60 close(handle->fd);
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jbe@96
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61 handle->fd = -1;
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jbe@96
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62 handle->closed = 1;
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jbe@95
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63 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@81
|
64 }
|
jbe@95
|
65 if (nonblocking) flags |= O_NONBLOCK;
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jbe@95
|
66 else flags &= ~O_NONBLOCK;
|
jbe@95
|
67 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
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jbe@95
|
68 moonbr_io_errmsg();
|
jbe@96
|
69 close(handle->fd);
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jbe@96
|
70 handle->fd = -1;
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jbe@96
|
71 handle->closed = 1;
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jbe@95
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72 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@95
|
73 }
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jbe@95
|
74 handle->nonblocking = nonblocking;
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jbe@81
|
75 }
|
jbe@81
|
76
|
jbe@87
|
77 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
78 struct linger lingerval = { 0, };
|
jbe@95
|
79 if (!handle->isnetwork) return;
|
jbe@87
|
80 if (timeout >= 0) {
|
jbe@87
|
81 lingerval.l_onoff = 1;
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jbe@87
|
82 lingerval.l_linger = timeout;
|
jbe@87
|
83 }
|
jbe@87
|
84 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
|
85 moonbr_io_errmsg();
|
jbe@96
|
86 close(handle->fd);
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jbe@96
|
87 handle->fd = -1;
|
jbe@96
|
88 handle->closed = 1;
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jbe@95
|
89 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
90 }
|
jbe@87
|
91 }
|
jbe@87
|
92
|
jbe@95
|
93 static void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
|
jbe@96
|
94 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@95
|
95 if (!handle->isnetwork || handle->nopush == nopush) return;
|
jbe@96
|
96 #if defined(TCP_NOPUSH)
|
jbe@96
|
97 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@96
|
98 moonbr_io_errmsg();
|
jbe@96
|
99 close(handle->fd);
|
jbe@96
|
100 handle->fd = -1;
|
jbe@96
|
101 handle->closed = 1;
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jbe@96
|
102 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
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jbe@96
|
103 }
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jbe@96
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104 #elif defined(TCP_CORK)
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jbe@95
|
105 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
|
jbe@95
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106 moonbr_io_errmsg();
|
jbe@96
|
107 close(handle->fd);
|
jbe@96
|
108 handle->fd = -1;
|
jbe@96
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109 handle->closed = 1;
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jbe@95
|
110 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@95
|
111 }
|
jbe@95
|
112 #endif
|
jbe@95
|
113 handle->nopush = nopush;
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jbe@96
|
114 #else
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jbe@96
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115 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
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116 #endif
|
jbe@95
|
117 }
|
jbe@95
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118
|
jbe@86
|
119 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
|
jbe@85
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120 moonbr_io_handle_t *handle;
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jbe@85
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121 lua_Integer maxread;
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jbe@85
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122 const char *terminatorstr;
|
jbe@85
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123 size_t terminatorlen;
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jbe@85
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124 char terminator;
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jbe@85
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125 luaL_Buffer luabuf;
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jbe@85
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126 size_t luabufcnt = 0;
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jbe@86
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127 int endcnt;
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jbe@85
|
128 char *terminatorpos;
|
jbe@85
|
129 ssize_t result;
|
jbe@85
|
130 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
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jbe@85
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131 maxread = luaL_optinteger(L, 2, 0);
|
jbe@85
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132 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
|
jbe@85
|
133 if (terminatorlen) {
|
jbe@85
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134 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
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135 terminator = terminatorstr[0];
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jbe@85
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136 }
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jbe@86
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137 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
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jbe@94
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138 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
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jbe@94
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139 if (handle->fd < 0) goto moonbr_io_read_impl_eof; /* fake EOF to simulate shutdown */
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jbe@85
|
140 if (handle->readerr) {
|
jbe@85
|
141 lua_pushnil(L);
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jbe@85
|
142 lua_pushliteral(L, "Previous read error");
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jbe@85
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143 return 2;
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jbe@85
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144 }
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jbe@85
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145 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
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jbe@86
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146 if (!drain) luaL_buffinit(L, &luabuf);
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jbe@85
|
147 while (1) {
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jbe@86
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148 endcnt = -1;
|
jbe@85
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149 if (maxread > 0 && handle->readbufcnt >= maxread - luabufcnt) {
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jbe@86
|
150 endcnt = maxread - luabufcnt;
|
jbe@85
|
151 } else if (terminatorlen) {
|
jbe@85
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152 terminatorpos = memchr(handle->readbuf, terminator, handle->readbufcnt);
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jbe@86
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153 if (terminatorpos) endcnt = 1 + (terminatorpos - handle->readbuf);
|
jbe@85
|
154 }
|
jbe@86
|
155 if (endcnt >= 0) {
|
jbe@86
|
156 if (!drain) {
|
jbe@86
|
157 luaL_addlstring(&luabuf, handle->readbuf, endcnt);
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jbe@86
|
158 luaL_pushresult(&luabuf);
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jbe@90
|
159 } else {
|
jbe@90
|
160 luabufcnt += handle->readbufcnt;
|
jbe@90
|
161 lua_pushinteger(L, luabufcnt);
|
jbe@86
|
162 }
|
jbe@86
|
163 handle->readbufcnt -= endcnt;
|
jbe@86
|
164 memmove(handle->readbuf, handle->readbuf + endcnt, handle->readbufcnt);
|
jbe@85
|
165 return 1;
|
jbe@85
|
166 }
|
jbe@86
|
167 if (!drain) luaL_addlstring(&luabuf, handle->readbuf, handle->readbufcnt);
|
jbe@85
|
168 luabufcnt += handle->readbufcnt;
|
jbe@85
|
169 handle->readbufcnt = 0;
|
jbe@85
|
170 do {
|
jbe@85
|
171 result = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@85
|
172 } while (result < 0 && (errno == EINTR));
|
jbe@85
|
173 if (result == 0 || (nonblocking && result < 0 && (errno == EAGAIN || errno == EWOULDBLOCK))) break;
|
jbe@85
|
174 if (result < 0) {
|
jbe@85
|
175 moonbr_io_errmsg();
|
jbe@85
|
176 handle->readerr = 1;
|
jbe@85
|
177 lua_pushnil(L);
|
jbe@85
|
178 lua_pushstring(L, errmsg);
|
jbe@85
|
179 return 2;
|
jbe@85
|
180 }
|
jbe@85
|
181 handle->readbufcnt += result;
|
jbe@85
|
182 }
|
jbe@86
|
183 if (!drain) {
|
jbe@86
|
184 luaL_addlstring(&luabuf, handle->readbuf, handle->readbufcnt);
|
jbe@86
|
185 luaL_pushresult(&luabuf);
|
jbe@86
|
186 }
|
jbe@90
|
187 luabufcnt += handle->readbufcnt;
|
jbe@85
|
188 handle->readbufcnt = 0;
|
jbe@90
|
189 if (!drain) {
|
jbe@90
|
190 if (!luabufcnt && result == 0) {
|
jbe@94
|
191 moonbr_io_read_impl_eof:
|
jbe@90
|
192 lua_pushboolean(L, 0);
|
jbe@90
|
193 lua_pushliteral(L, "End of file");
|
jbe@90
|
194 return 2;
|
jbe@90
|
195 }
|
jbe@90
|
196 } else {
|
jbe@90
|
197 if (!luabufcnt && result == 0) lua_pushboolean(L, 1);
|
jbe@90
|
198 else lua_pushboolean(L, luabufcnt);
|
jbe@90
|
199 }
|
jbe@85
|
200 return 1;
|
jbe@85
|
201 }
|
jbe@85
|
202
|
jbe@85
|
203 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
204 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
205 }
|
jbe@85
|
206
|
jbe@85
|
207 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
208 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
209 }
|
jbe@86
|
210
|
jbe@86
|
211 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
212 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
213 }
|
jbe@86
|
214
|
jbe@86
|
215 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
216 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
217 }
|
jbe@85
|
218
|
jbe@81
|
219 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
220 moonbr_io_handle_t *handle;
|
jbe@80
|
221 int i, top;
|
jbe@80
|
222 const char *str;
|
jbe@92
|
223 size_t strlen;
|
jbe@80
|
224 size_t written;
|
jbe@80
|
225 ssize_t result;
|
jbe@80
|
226 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
227 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
228 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
229 if (handle->writeerr) {
|
jbe@80
|
230 lua_pushnil(L);
|
jbe@80
|
231 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
232 return 2;
|
jbe@80
|
233 }
|
jbe@81
|
234 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
235 top = lua_gettop(L);
|
jbe@81
|
236 lua_getuservalue(L, 1);
|
jbe@81
|
237 lua_getfield(L, -1, "writebuf");
|
jbe@84
|
238 for (i=2; i<=top; i++) {
|
jbe@84
|
239 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
240 lua_pushvalue(L, i);
|
jbe@84
|
241 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
242 handle->writeleft += strlen;
|
jbe@81
|
243 }
|
jbe@83
|
244 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
245 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
246 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
247 while (handle->writeqoff < strlen) {
|
jbe@96
|
248 if (strlen - handle->writeqoff <= MOONBR_IO_WRITEBUFLEN - handle->writebufcnt) {
|
jbe@92
|
249 memcpy(handle->writebuf + handle->writebufcnt, str + handle->writeqoff, strlen - handle->writeqoff);
|
jbe@92
|
250 handle->writebufcnt += strlen - handle->writeqoff;
|
jbe@80
|
251 break;
|
jbe@80
|
252 } else {
|
jbe@97
|
253 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@80
|
254 written = 0;
|
jbe@92
|
255 memcpy(handle->writebuf + handle->writebufcnt, str + handle->writeqoff, MOONBR_IO_WRITEBUFLEN - handle->writebufcnt);
|
jbe@92
|
256 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufcnt;
|
jbe@80
|
257 while (written < MOONBR_IO_WRITEBUFLEN) {
|
jbe@80
|
258 result = write(handle->fd, handle->writebuf + written, MOONBR_IO_WRITEBUFLEN - written);
|
jbe@80
|
259 if (result < 0) {
|
jbe@81
|
260 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
261 if (written) {
|
jbe@81
|
262 handle->writebufcnt -= written;
|
jbe@81
|
263 memmove(handle->writebuf, handle->writebuf + written, handle->writebufcnt);
|
jbe@92
|
264 goto moonbr_io_write_impl_continue;
|
jbe@81
|
265 }
|
jbe@81
|
266 goto moonbr_io_write_impl_block;
|
jbe@81
|
267 } else if (errno != EINTR) {
|
jbe@80
|
268 moonbr_io_errmsg();
|
jbe@81
|
269 handle->writeerr = 1;
|
jbe@80
|
270 lua_pushnil(L);
|
jbe@80
|
271 lua_pushstring(L, errmsg);
|
jbe@80
|
272 return 2;
|
jbe@80
|
273 }
|
jbe@80
|
274 }
|
jbe@92
|
275 written += result;
|
jbe@92
|
276 handle->writeleft -= result;
|
jbe@80
|
277 }
|
jbe@81
|
278 handle->writebufcnt = 0;
|
jbe@80
|
279 }
|
jbe@92
|
280 moonbr_io_write_impl_continue:;
|
jbe@80
|
281 }
|
jbe@81
|
282 handle->writeqoff = 0;
|
jbe@81
|
283 lua_pop(L, 1);
|
jbe@81
|
284 lua_pushnil(L);
|
jbe@83
|
285 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
286 }
|
jbe@81
|
287 if (flush) {
|
jbe@97
|
288 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@81
|
289 written = 0;
|
jbe@81
|
290 while (written < handle->writebufcnt) {
|
jbe@81
|
291 result = write(handle->fd, handle->writebuf + written, handle->writebufcnt - written);
|
jbe@81
|
292 if (result < 0) {
|
jbe@81
|
293 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
294 if (written) {
|
jbe@81
|
295 handle->writebufcnt -= written;
|
jbe@81
|
296 memmove(handle->writebuf, handle->writebuf + written, handle->writebufcnt);
|
jbe@81
|
297 }
|
jbe@81
|
298 goto moonbr_io_write_impl_block;
|
jbe@81
|
299 } else if (errno != EINTR) {
|
jbe@81
|
300 moonbr_io_errmsg();
|
jbe@81
|
301 handle->writeerr = -1;
|
jbe@81
|
302 lua_pushnil(L);
|
jbe@81
|
303 lua_pushstring(L, errmsg);
|
jbe@81
|
304 return 2;
|
jbe@81
|
305 }
|
jbe@81
|
306 } else {
|
jbe@81
|
307 written += result;
|
jbe@81
|
308 handle->writeleft -= result;
|
jbe@81
|
309 }
|
jbe@81
|
310 }
|
jbe@81
|
311 handle->writebufcnt = 0;
|
jbe@82
|
312 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@81
|
313 } else {
|
jbe@91
|
314 if (nonblocking) lua_pushinteger(L, handle->writeleft);
|
jbe@81
|
315 }
|
jbe@82
|
316 if (!nonblocking) lua_pushvalue(L, 1);
|
jbe@80
|
317 return 1;
|
jbe@81
|
318 moonbr_io_write_impl_block:
|
jbe@91
|
319 lua_pushinteger(L, handle->writeleft);
|
jbe@81
|
320 return 1;
|
jbe@81
|
321 }
|
jbe@81
|
322
|
jbe@81
|
323 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
324 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
325 }
|
jbe@81
|
326
|
jbe@81
|
327 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
328 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
329 }
|
jbe@80
|
330
|
jbe@80
|
331 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
332 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
333 }
|
jbe@81
|
334
|
jbe@81
|
335 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
336 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
337 }
|
jbe@80
|
338
|
jbe@88
|
339 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
340 moonbr_io_handle_t *handle;
|
jbe@88
|
341 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
342 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
343 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
344 if (handle->writeleft) {
|
jbe@94
|
345 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
346 lua_pushvalue(L, 1);
|
jbe@94
|
347 lua_call(L, 1, 2);
|
jbe@94
|
348 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
349 handle->finished = 1;
|
jbe@94
|
350 return 2;
|
jbe@88
|
351 }
|
jbe@94
|
352 }
|
jbe@94
|
353 handle->finished = 1;
|
jbe@95
|
354 if (handle->isnetwork) {
|
jbe@88
|
355 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
356 moonbr_io_errmsg();
|
jbe@88
|
357 lua_pushnil(L);
|
jbe@88
|
358 lua_pushstring(L, errmsg);
|
jbe@88
|
359 return 2;
|
jbe@88
|
360 }
|
jbe@94
|
361 } else {
|
jbe@94
|
362 if (close(handle->fd)) {
|
jbe@94
|
363 moonbr_io_errmsg();
|
jbe@94
|
364 handle->fd = -1;
|
jbe@94
|
365 lua_pushnil(L);
|
jbe@94
|
366 lua_pushstring(L, errmsg);
|
jbe@94
|
367 return 2;
|
jbe@94
|
368 }
|
jbe@94
|
369 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
370 }
|
jbe@88
|
371 lua_pushboolean(L, 1);
|
jbe@88
|
372 return 1;
|
jbe@88
|
373 }
|
jbe@88
|
374
|
jbe@94
|
375 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
376 moonbr_io_handle_t *handle;
|
jbe@83
|
377 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
378 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
379 if (!reset) {
|
jbe@87
|
380 if (handle->writeleft) {
|
jbe@87
|
381 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
382 lua_pushvalue(L, 1);
|
jbe@87
|
383 lua_call(L, 1, 2);
|
jbe@87
|
384 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
385 close(handle->fd);
|
jbe@87
|
386 handle->fd = -1;
|
jbe@87
|
387 return 2;
|
jbe@87
|
388 }
|
jbe@83
|
389 }
|
jbe@94
|
390 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
391 }
|
jbe@94
|
392 if (handle->fd >= 0) {
|
jbe@94
|
393 if (close(handle->fd)) {
|
jbe@94
|
394 moonbr_io_errmsg();
|
jbe@94
|
395 handle->fd = -1;
|
jbe@94
|
396 lua_pushnil(L);
|
jbe@94
|
397 lua_pushstring(L, errmsg);
|
jbe@94
|
398 return 2;
|
jbe@94
|
399 }
|
jbe@83
|
400 }
|
jbe@83
|
401 handle->fd = -1;
|
jbe@83
|
402 lua_pushboolean(L, 1);
|
jbe@83
|
403 return 1;
|
jbe@84
|
404
|
jbe@83
|
405 }
|
jbe@83
|
406
|
jbe@94
|
407 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
408 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
409 }
|
jbe@94
|
410
|
jbe@84
|
411 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
412 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
413 }
|
jbe@84
|
414
|
jbe@88
|
415 static int moonbr_io_gc(lua_State *L) {
|
jbe@88
|
416 moonbr_io_handle_t *handle;
|
jbe@88
|
417 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
418 if (handle->fd >= 0) {
|
jbe@88
|
419 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
420 lua_pushvalue(L, 1);
|
jbe@88
|
421 lua_pushinteger(L, 0);
|
jbe@88
|
422 lua_call(L, 2, 0);
|
jbe@88
|
423 }
|
jbe@88
|
424 return 0;
|
jbe@88
|
425 }
|
jbe@88
|
426
|
jbe@88
|
427 void moonbr_io_closehandle(lua_State *L, int idx, int timeout) {
|
jbe@88
|
428 moonbr_io_handle_t *handle;
|
jbe@88
|
429 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
430 if (handle->fd >= 0) {
|
jbe@88
|
431 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
432 lua_pushvalue(L, idx);
|
jbe@88
|
433 lua_pushinteger(L, timeout);
|
jbe@88
|
434 lua_call(L, 2, 0);
|
jbe@88
|
435 }
|
jbe@88
|
436 }
|
jbe@88
|
437
|
jbe@95
|
438 void moonbr_io_pushhandle(lua_State *L, int fd, int isnetwork) {
|
jbe@79
|
439 moonbr_io_handle_t *handle;
|
jbe@79
|
440 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@79
|
441 handle->fd = fd;
|
jbe@95
|
442 handle->isnetwork = isnetwork;
|
jbe@94
|
443 handle->finished = 0;
|
jbe@94
|
444 handle->closed = 0;
|
jbe@81
|
445 handle->nonblocking = -1;
|
jbe@95
|
446 handle->nopush = -1;
|
jbe@85
|
447 handle->readerr = 0;
|
jbe@85
|
448 handle->readbufcnt = 0;
|
jbe@81
|
449 handle->writeerr = 0;
|
jbe@81
|
450 handle->writeleft = 0;
|
jbe@83
|
451 handle->writeqin = 0;
|
jbe@83
|
452 handle->writeqout = 0;
|
jbe@81
|
453 handle->writeqoff = 0;
|
jbe@81
|
454 handle->writebufcnt = 0;
|
jbe@87
|
455 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@79
|
456 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
457 lua_setmetatable(L, -2);
|
jbe@79
|
458 lua_newtable(L); // uservalue
|
jbe@81
|
459 lua_newtable(L);
|
jbe@81
|
460 lua_setfield(L, -2, "writebuf");
|
jbe@79
|
461 lua_newtable(L); // public
|
jbe@79
|
462 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
463 lua_setmetatable(L, -2);
|
jbe@79
|
464 lua_setfield(L, -2, "public");
|
jbe@79
|
465 lua_setuservalue(L, -2);
|
jbe@79
|
466 }
|
jbe@79
|
467
|
jbe@79
|
468 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
469 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
470 lua_getuservalue(L, 1);
|
jbe@79
|
471 lua_getfield(L, -1, "public");
|
jbe@79
|
472 lua_pushvalue(L, 2);
|
jbe@79
|
473 lua_gettable(L, -2);
|
jbe@79
|
474 return 1;
|
jbe@79
|
475 }
|
jbe@79
|
476
|
jbe@79
|
477 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
478 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
479 lua_getuservalue(L, 1);
|
jbe@79
|
480 lua_getfield(L, -1, "public");
|
jbe@79
|
481 lua_pushvalue(L, 2);
|
jbe@79
|
482 lua_pushvalue(L, 3);
|
jbe@79
|
483 lua_settable(L, -3);
|
jbe@79
|
484 return 0;
|
jbe@79
|
485 }
|
jbe@79
|
486
|
jbe@98
|
487 int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@98
|
488 const char *host, *port;
|
jbe@98
|
489 struct addrinfo hints = { 0, };
|
jbe@98
|
490 struct addrinfo *res, *addrinfo;
|
jbe@98
|
491 int errcode;
|
jbe@98
|
492 int sock;
|
jbe@98
|
493 host = luaL_checkstring(L, 1);
|
jbe@98
|
494 port = luaL_checkstring(L, 2);
|
jbe@98
|
495 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
496 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
497 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
498 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
499 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
500 if (errcode) {
|
jbe@98
|
501 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
502 moonbr_io_errmsg();
|
jbe@98
|
503 lua_pushnil(L);
|
jbe@98
|
504 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
505 } else {
|
jbe@98
|
506 lua_pushnil(L);
|
jbe@98
|
507 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
508 }
|
jbe@98
|
509 return 2;
|
jbe@98
|
510 }
|
jbe@98
|
511 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@98
|
512 if (addrinfo->ai_family == PF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
513 }
|
jbe@98
|
514 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@98
|
515 if (addrinfo->ai_family == PF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
516 }
|
jbe@98
|
517 addrinfo = res;
|
jbe@98
|
518 moonbr_io_tcpconnect_found:
|
jbe@98
|
519 sock = socket(addrinfo->ai_family, addrinfo->ai_socktype, addrinfo->ai_protocol);
|
jbe@98
|
520 if (sock < 0) {
|
jbe@98
|
521 moonbr_io_errmsg();
|
jbe@98
|
522 lua_pushnil(L);
|
jbe@98
|
523 lua_pushstring(L, errmsg);
|
jbe@98
|
524 }
|
jbe@98
|
525 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@98
|
526 moonbr_io_errmsg();
|
jbe@98
|
527 lua_pushnil(L);
|
jbe@98
|
528 lua_pushstring(L, errmsg);
|
jbe@98
|
529 return 2;
|
jbe@98
|
530 }
|
jbe@98
|
531 moonbr_io_pushhandle(L, sock, 1);
|
jbe@98
|
532 return 1;
|
jbe@98
|
533 }
|
jbe@98
|
534
|
jbe@79
|
535 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
536 {"read", moonbr_io_read},
|
jbe@85
|
537 {"read_nb", moonbr_io_read_nb},
|
jbe@86
|
538 {"drain", moonbr_io_drain},
|
jbe@86
|
539 {"drain_nb", moonbr_io_drain_nb},
|
jbe@80
|
540 {"write", moonbr_io_write},
|
jbe@81
|
541 {"write_nb", moonbr_io_write_nb},
|
jbe@80
|
542 {"flush", moonbr_io_flush},
|
jbe@81
|
543 {"flush_nb", moonbr_io_flush_nb},
|
jbe@88
|
544 {"finish", moonbr_io_finish},
|
jbe@87
|
545 {"close", moonbr_io_close},
|
jbe@85
|
546 {"reset", moonbr_io_reset},
|
jbe@79
|
547 {NULL, NULL}
|
jbe@79
|
548 };
|
jbe@79
|
549
|
jbe@79
|
550 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
551 {"__index", moonbr_io_handleindex},
|
jbe@79
|
552 {"__newindex", moonbr_io_handlenewindex},
|
jbe@88
|
553 {"__gc", moonbr_io_gc},
|
jbe@79
|
554 {NULL, NULL}
|
jbe@79
|
555 };
|
jbe@79
|
556
|
jbe@79
|
557 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@98
|
558 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@79
|
559 {NULL, NULL}
|
jbe@79
|
560 };
|
jbe@79
|
561
|
jbe@79
|
562 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
563
|
jbe@80
|
564 lua_newtable(L); // module
|
jbe@80
|
565
|
jbe@79
|
566 lua_newtable(L); // public metatable
|
jbe@79
|
567 lua_newtable(L); // handle methods
|
jbe@79
|
568 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
569 lua_pushvalue(L, -1);
|
jbe@80
|
570 lua_setfield(L, -4, "handle");
|
jbe@79
|
571 lua_setfield(L, -2, "__index");
|
jbe@79
|
572 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
573
|
jbe@79
|
574 lua_newtable(L); // handle metatable
|
jbe@79
|
575 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@79
|
576 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
577
|
jbe@79
|
578 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
579 return 1;
|
jbe@79
|
580
|
jbe@79
|
581 }
|
jbe@79
|
582
|