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