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@98
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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
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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
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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
|
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
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29
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jbe@79
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30 typedef struct {
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jbe@79
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31 int fd;
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jbe@95
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32 int isnetwork;
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jbe@94
|
33 int finished;
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jbe@94
|
34 int closed;
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jbe@81
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35 int nonblocking;
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jbe@95
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36 int nopush;
|
jbe@85
|
37 int readerr;
|
jbe@105
|
38 int readbufin;
|
jbe@105
|
39 int readbufout;
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jbe@81
|
40 int writeerr;
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jbe@83
|
41 size_t writeleft;
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jbe@83
|
42 #if LUA_VERSION_NUM >= 503
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jbe@83
|
43 lua_Integer writeqin;
|
jbe@83
|
44 lua_Integer writeqout;
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jbe@83
|
45 #else
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jbe@83
|
46 int writeqin;
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jbe@83
|
47 int writeqout;
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jbe@83
|
48 #endif
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jbe@83
|
49 size_t writeqoff;
|
jbe@103
|
50 int writebufin;
|
jbe@103
|
51 int writebufout;
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jbe@85
|
52 char readbuf[MOONBR_IO_READBUFLEN];
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jbe@80
|
53 char writebuf[MOONBR_IO_WRITEBUFLEN];
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jbe@79
|
54 } moonbr_io_handle_t;
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jbe@79
|
55
|
jbe@81
|
56 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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57 int flags;
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jbe@95
|
58 if (handle->nonblocking == nonblocking) return;
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jbe@95
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59 flags = fcntl(handle->fd, F_GETFL, 0);
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jbe@95
|
60 if (flags == -1) {
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jbe@95
|
61 moonbr_io_errmsg();
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jbe@96
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62 close(handle->fd);
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jbe@96
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63 handle->fd = -1;
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jbe@96
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64 handle->closed = 1;
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jbe@95
|
65 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@81
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66 }
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jbe@95
|
67 if (nonblocking) flags |= O_NONBLOCK;
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jbe@95
|
68 else flags &= ~O_NONBLOCK;
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jbe@95
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69 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
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jbe@95
|
70 moonbr_io_errmsg();
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jbe@96
|
71 close(handle->fd);
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jbe@96
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72 handle->fd = -1;
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jbe@96
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73 handle->closed = 1;
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jbe@95
|
74 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@95
|
75 }
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jbe@95
|
76 handle->nonblocking = nonblocking;
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jbe@81
|
77 }
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jbe@81
|
78
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jbe@87
|
79 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
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jbe@87
|
80 struct linger lingerval = { 0, };
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jbe@95
|
81 if (!handle->isnetwork) return;
|
jbe@87
|
82 if (timeout >= 0) {
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jbe@87
|
83 lingerval.l_onoff = 1;
|
jbe@87
|
84 lingerval.l_linger = timeout;
|
jbe@87
|
85 }
|
jbe@87
|
86 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
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87 moonbr_io_errmsg();
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jbe@96
|
88 close(handle->fd);
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jbe@96
|
89 handle->fd = -1;
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jbe@96
|
90 handle->closed = 1;
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jbe@95
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91 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
|
92 }
|
jbe@87
|
93 }
|
jbe@87
|
94
|
jbe@95
|
95 static void moonbr_io_handle_set_nopush(lua_State *L, moonbr_io_handle_t *handle, int nopush) {
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jbe@96
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96 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
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jbe@95
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97 if (!handle->isnetwork || handle->nopush == nopush) return;
|
jbe@96
|
98 #if defined(TCP_NOPUSH)
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jbe@96
|
99 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
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jbe@104
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100 #elif defined(TCP_CORK)
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jbe@104
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101 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
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jbe@104
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102 #endif
|
jbe@96
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103 moonbr_io_errmsg();
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jbe@96
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104 close(handle->fd);
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jbe@96
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105 handle->fd = -1;
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jbe@96
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106 handle->closed = 1;
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jbe@104
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107 #if defined(TCP_NOPUSH)
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jbe@96
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108 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
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jbe@96
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109 #elif defined(TCP_CORK)
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jbe@95
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110 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
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111 #endif
|
jbe@95
|
112 }
|
jbe@95
|
113 handle->nopush = nopush;
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jbe@96
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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
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jbe@95
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117 }
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jbe@95
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118
|
jbe@86
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119 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
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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;
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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@105
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127 int remaining;
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jbe@85
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128 char *terminatorpos;
|
jbe@103
|
129 ssize_t bytesread;
|
jbe@85
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130 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@85
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131 maxread = luaL_optinteger(L, 2, 0);
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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");
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jbe@85
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135 terminator = terminatorstr[0];
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jbe@85
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136 }
|
jbe@86
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137 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
|
jbe@94
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138 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
|
jbe@85
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139 if (handle->readerr) {
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jbe@85
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140 lua_pushnil(L);
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jbe@85
|
141 lua_pushliteral(L, "Previous read error");
|
jbe@85
|
142 return 2;
|
jbe@85
|
143 }
|
jbe@105
|
144 handle->readerr = 1;
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jbe@104
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145 if (handle->fd < 0) goto moonbr_io_read_impl_eof; /* fake EOF to simulate shutdown */
|
jbe@85
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146 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
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jbe@86
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147 if (!drain) luaL_buffinit(L, &luabuf);
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jbe@85
|
148 while (1) {
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jbe@105
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149 remaining = -1;
|
jbe@105
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150 if (
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jbe@105
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151 maxread > 0 &&
|
jbe@105
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152 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
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jbe@105
|
153 ) {
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jbe@105
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154 remaining = maxread - luabufcnt;
|
jbe@85
|
155 } else if (terminatorlen) {
|
jbe@105
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156 terminatorpos = memchr(
|
jbe@105
|
157 handle->readbuf + handle->readbufout,
|
jbe@105
|
158 terminator,
|
jbe@105
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159 handle->readbufin - handle->readbufout
|
jbe@105
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160 );
|
jbe@105
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161 if (terminatorpos) remaining = 1 + (
|
jbe@105
|
162 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@105
|
163 );
|
jbe@85
|
164 }
|
jbe@105
|
165 if (remaining >= 0) {
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jbe@86
|
166 if (!drain) {
|
jbe@105
|
167 luaL_addlstring(
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jbe@105
|
168 &luabuf,
|
jbe@105
|
169 handle->readbuf + handle->readbufout,
|
jbe@105
|
170 remaining
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jbe@105
|
171 );
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jbe@86
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172 luaL_pushresult(&luabuf);
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jbe@90
|
173 } else {
|
jbe@105
|
174 luaL_pushresult(&luabuf);
|
jbe@105
|
175 lua_pop(L, 1);
|
jbe@105
|
176 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
177 }
|
jbe@105
|
178 handle->readbufout += remaining;
|
jbe@105
|
179 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
180 handle->readbufin = 0;
|
jbe@105
|
181 handle->readbufout =0;
|
jbe@105
|
182 }
|
jbe@104
|
183 handle->readerr = 0;
|
jbe@85
|
184 return 1;
|
jbe@85
|
185 }
|
jbe@105
|
186 if (!drain) luaL_addlstring(
|
jbe@105
|
187 &luabuf,
|
jbe@105
|
188 handle->readbuf + handle->readbufout,
|
jbe@105
|
189 handle->readbufin - handle->readbufout
|
jbe@105
|
190 );
|
jbe@105
|
191 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@85
|
192 do {
|
jbe@103
|
193 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
194 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
195 if (
|
jbe@105
|
196 bytesread == 0 || (
|
jbe@105
|
197 nonblocking &&
|
jbe@105
|
198 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
199 )
|
jbe@105
|
200 ) {
|
jbe@105
|
201 handle->readbufin = 0;
|
jbe@105
|
202 handle->readbufout = 0;
|
jbe@105
|
203 if (!drain) {
|
jbe@105
|
204 luaL_pushresult(&luabuf);
|
jbe@105
|
205 if (!luabufcnt && bytesread == 0) {
|
jbe@105
|
206 lua_pop(L, 1);
|
jbe@105
|
207 moonbr_io_read_impl_eof:
|
jbe@105
|
208 lua_pushboolean(L, 0);
|
jbe@105
|
209 lua_pushliteral(L, "End of file");
|
jbe@105
|
210 handle->readerr = 0;
|
jbe@105
|
211 return 2;
|
jbe@105
|
212 }
|
jbe@105
|
213 } else {
|
jbe@105
|
214 if (!luabufcnt && bytesread == 0) lua_pushboolean(L, 1);
|
jbe@105
|
215 else lua_pushboolean(L, luabufcnt);
|
jbe@105
|
216 }
|
jbe@105
|
217 handle->readerr = 0;
|
jbe@105
|
218 return 1;
|
jbe@105
|
219 }
|
jbe@103
|
220 if (bytesread < 0) {
|
jbe@85
|
221 moonbr_io_errmsg();
|
jbe@85
|
222 lua_pushnil(L);
|
jbe@85
|
223 lua_pushstring(L, errmsg);
|
jbe@85
|
224 return 2;
|
jbe@85
|
225 }
|
jbe@105
|
226 handle->readbufin = bytesread;
|
jbe@105
|
227 handle->readbufout = 0;
|
jbe@86
|
228 }
|
jbe@85
|
229 }
|
jbe@85
|
230
|
jbe@85
|
231 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
232 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
233 }
|
jbe@85
|
234
|
jbe@85
|
235 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
236 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
237 }
|
jbe@86
|
238
|
jbe@86
|
239 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
240 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
241 }
|
jbe@86
|
242
|
jbe@86
|
243 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
244 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
245 }
|
jbe@85
|
246
|
jbe@81
|
247 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
248 moonbr_io_handle_t *handle;
|
jbe@80
|
249 int i, top;
|
jbe@80
|
250 const char *str;
|
jbe@92
|
251 size_t strlen;
|
jbe@103
|
252 ssize_t written;
|
jbe@80
|
253 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
254 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
255 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
256 if (handle->writeerr) {
|
jbe@80
|
257 lua_pushnil(L);
|
jbe@80
|
258 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
259 return 2;
|
jbe@80
|
260 }
|
jbe@103
|
261 handle->writeerr = 1;
|
jbe@81
|
262 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
263 top = lua_gettop(L);
|
jbe@81
|
264 lua_getuservalue(L, 1);
|
jbe@103
|
265 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
266 for (i=2; i<=top; i++) {
|
jbe@84
|
267 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
268 lua_pushvalue(L, i);
|
jbe@84
|
269 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
270 handle->writeleft += strlen;
|
jbe@81
|
271 }
|
jbe@83
|
272 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
273 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
274 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
275 while (handle->writeqoff < strlen) {
|
jbe@103
|
276 if (
|
jbe@103
|
277 strlen - handle->writeqoff <=
|
jbe@103
|
278 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
279 ) {
|
jbe@103
|
280 memcpy(
|
jbe@103
|
281 handle->writebuf + handle->writebufin,
|
jbe@103
|
282 str + handle->writeqoff,
|
jbe@103
|
283 strlen - handle->writeqoff
|
jbe@103
|
284 );
|
jbe@103
|
285 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
286 break;
|
jbe@80
|
287 } else {
|
jbe@97
|
288 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
289 memcpy(
|
jbe@103
|
290 handle->writebuf + handle->writebufin,
|
jbe@103
|
291 str + handle->writeqoff,
|
jbe@103
|
292 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
293 );
|
jbe@103
|
294 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@103
|
295 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@103
|
296 written = write(
|
jbe@103
|
297 handle->fd,
|
jbe@103
|
298 handle->writebuf + handle->writebufout,
|
jbe@103
|
299 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
300 );
|
jbe@103
|
301 if (written < 0) {
|
jbe@81
|
302 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
303 goto moonbr_io_write_impl_block;
|
jbe@81
|
304 } else if (errno != EINTR) {
|
jbe@80
|
305 moonbr_io_errmsg();
|
jbe@80
|
306 lua_pushnil(L);
|
jbe@80
|
307 lua_pushstring(L, errmsg);
|
jbe@80
|
308 return 2;
|
jbe@80
|
309 }
|
jbe@103
|
310 } else {
|
jbe@103
|
311 handle->writebufout += written;
|
jbe@103
|
312 handle->writeleft -= written;
|
jbe@80
|
313 }
|
jbe@80
|
314 }
|
jbe@103
|
315 handle->writebufin = 0;
|
jbe@103
|
316 handle->writebufout = 0;
|
jbe@80
|
317 }
|
jbe@80
|
318 }
|
jbe@81
|
319 handle->writeqoff = 0;
|
jbe@81
|
320 lua_pop(L, 1);
|
jbe@81
|
321 lua_pushnil(L);
|
jbe@83
|
322 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
323 }
|
jbe@81
|
324 if (flush) {
|
jbe@97
|
325 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@103
|
326 while (handle->writebufout < handle->writebufin) {
|
jbe@103
|
327 written = write(
|
jbe@103
|
328 handle->fd,
|
jbe@103
|
329 handle->writebuf + handle->writebufout,
|
jbe@103
|
330 handle->writebufin - handle->writebufout
|
jbe@103
|
331 );
|
jbe@103
|
332 if (written < 0) {
|
jbe@81
|
333 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
334 goto moonbr_io_write_impl_block;
|
jbe@81
|
335 } else if (errno != EINTR) {
|
jbe@81
|
336 moonbr_io_errmsg();
|
jbe@81
|
337 lua_pushnil(L);
|
jbe@81
|
338 lua_pushstring(L, errmsg);
|
jbe@81
|
339 return 2;
|
jbe@81
|
340 }
|
jbe@81
|
341 } else {
|
jbe@103
|
342 handle->writebufout += written;
|
jbe@103
|
343 handle->writeleft -= written;
|
jbe@81
|
344 }
|
jbe@81
|
345 }
|
jbe@103
|
346 handle->writebufin = 0;
|
jbe@103
|
347 handle->writebufout = 0;
|
jbe@81
|
348 }
|
jbe@103
|
349 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
350 else lua_pushvalue(L, 1);
|
jbe@103
|
351 handle->writeerr = 0;
|
jbe@80
|
352 return 1;
|
jbe@81
|
353 moonbr_io_write_impl_block:
|
jbe@91
|
354 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
355 handle->writeerr = 0;
|
jbe@81
|
356 return 1;
|
jbe@81
|
357 }
|
jbe@81
|
358
|
jbe@81
|
359 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
360 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
361 }
|
jbe@81
|
362
|
jbe@81
|
363 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
364 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
365 }
|
jbe@80
|
366
|
jbe@80
|
367 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
368 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
369 }
|
jbe@81
|
370
|
jbe@81
|
371 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
372 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
373 }
|
jbe@80
|
374
|
jbe@88
|
375 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
376 moonbr_io_handle_t *handle;
|
jbe@88
|
377 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
378 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
379 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
380 if (handle->writeleft) {
|
jbe@94
|
381 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
382 lua_pushvalue(L, 1);
|
jbe@94
|
383 lua_call(L, 1, 2);
|
jbe@94
|
384 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
385 handle->finished = 1;
|
jbe@94
|
386 return 2;
|
jbe@88
|
387 }
|
jbe@94
|
388 }
|
jbe@94
|
389 handle->finished = 1;
|
jbe@95
|
390 if (handle->isnetwork) {
|
jbe@88
|
391 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
392 moonbr_io_errmsg();
|
jbe@88
|
393 lua_pushnil(L);
|
jbe@88
|
394 lua_pushstring(L, errmsg);
|
jbe@88
|
395 return 2;
|
jbe@88
|
396 }
|
jbe@94
|
397 } else {
|
jbe@94
|
398 if (close(handle->fd)) {
|
jbe@94
|
399 moonbr_io_errmsg();
|
jbe@94
|
400 handle->fd = -1;
|
jbe@94
|
401 lua_pushnil(L);
|
jbe@94
|
402 lua_pushstring(L, errmsg);
|
jbe@94
|
403 return 2;
|
jbe@94
|
404 }
|
jbe@94
|
405 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
406 }
|
jbe@88
|
407 lua_pushboolean(L, 1);
|
jbe@88
|
408 return 1;
|
jbe@88
|
409 }
|
jbe@88
|
410
|
jbe@94
|
411 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
412 moonbr_io_handle_t *handle;
|
jbe@83
|
413 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
414 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
415 if (!reset) {
|
jbe@87
|
416 if (handle->writeleft) {
|
jbe@87
|
417 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
418 lua_pushvalue(L, 1);
|
jbe@87
|
419 lua_call(L, 1, 2);
|
jbe@87
|
420 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
421 close(handle->fd);
|
jbe@87
|
422 handle->fd = -1;
|
jbe@87
|
423 return 2;
|
jbe@87
|
424 }
|
jbe@83
|
425 }
|
jbe@94
|
426 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
427 }
|
jbe@94
|
428 if (handle->fd >= 0) {
|
jbe@94
|
429 if (close(handle->fd)) {
|
jbe@94
|
430 moonbr_io_errmsg();
|
jbe@94
|
431 handle->fd = -1;
|
jbe@94
|
432 lua_pushnil(L);
|
jbe@94
|
433 lua_pushstring(L, errmsg);
|
jbe@94
|
434 return 2;
|
jbe@94
|
435 }
|
jbe@104
|
436 handle->fd = -1;
|
jbe@83
|
437 }
|
jbe@83
|
438 lua_pushboolean(L, 1);
|
jbe@83
|
439 return 1;
|
jbe@84
|
440
|
jbe@83
|
441 }
|
jbe@83
|
442
|
jbe@94
|
443 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
444 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
445 }
|
jbe@94
|
446
|
jbe@84
|
447 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
448 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
449 }
|
jbe@84
|
450
|
jbe@88
|
451 static int moonbr_io_gc(lua_State *L) {
|
jbe@88
|
452 moonbr_io_handle_t *handle;
|
jbe@88
|
453 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
454 if (handle->fd >= 0) {
|
jbe@88
|
455 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
456 lua_pushvalue(L, 1);
|
jbe@88
|
457 lua_pushinteger(L, 0);
|
jbe@88
|
458 lua_call(L, 2, 0);
|
jbe@88
|
459 }
|
jbe@88
|
460 return 0;
|
jbe@88
|
461 }
|
jbe@88
|
462
|
jbe@100
|
463 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
464 moonbr_io_handle_t *handle;
|
jbe@88
|
465 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
466 if (!handle->closed) {
|
jbe@100
|
467 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
468 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
469 lua_call(L, 1, 0);
|
jbe@88
|
470 }
|
jbe@88
|
471 }
|
jbe@88
|
472
|
jbe@95
|
473 void moonbr_io_pushhandle(lua_State *L, int fd, int isnetwork) {
|
jbe@79
|
474 moonbr_io_handle_t *handle;
|
jbe@79
|
475 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@79
|
476 handle->fd = fd;
|
jbe@95
|
477 handle->isnetwork = isnetwork;
|
jbe@94
|
478 handle->finished = 0;
|
jbe@94
|
479 handle->closed = 0;
|
jbe@81
|
480 handle->nonblocking = -1;
|
jbe@95
|
481 handle->nopush = -1;
|
jbe@85
|
482 handle->readerr = 0;
|
jbe@105
|
483 handle->readbufin = 0;
|
jbe@105
|
484 handle->readbufout = 0;
|
jbe@81
|
485 handle->writeerr = 0;
|
jbe@81
|
486 handle->writeleft = 0;
|
jbe@83
|
487 handle->writeqin = 0;
|
jbe@83
|
488 handle->writeqout = 0;
|
jbe@81
|
489 handle->writeqoff = 0;
|
jbe@103
|
490 handle->writebufin = 0;
|
jbe@103
|
491 handle->writebufout = 0;
|
jbe@87
|
492 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@79
|
493 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
494 lua_setmetatable(L, -2);
|
jbe@79
|
495 lua_newtable(L); // uservalue
|
jbe@81
|
496 lua_newtable(L);
|
jbe@103
|
497 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
498 lua_newtable(L); // public
|
jbe@79
|
499 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
500 lua_setmetatable(L, -2);
|
jbe@79
|
501 lua_setfield(L, -2, "public");
|
jbe@79
|
502 lua_setuservalue(L, -2);
|
jbe@79
|
503 }
|
jbe@79
|
504
|
jbe@79
|
505 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
506 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
507 lua_getuservalue(L, 1);
|
jbe@79
|
508 lua_getfield(L, -1, "public");
|
jbe@79
|
509 lua_pushvalue(L, 2);
|
jbe@79
|
510 lua_gettable(L, -2);
|
jbe@79
|
511 return 1;
|
jbe@79
|
512 }
|
jbe@79
|
513
|
jbe@79
|
514 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
515 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
516 lua_getuservalue(L, 1);
|
jbe@79
|
517 lua_getfield(L, -1, "public");
|
jbe@79
|
518 lua_pushvalue(L, 2);
|
jbe@79
|
519 lua_pushvalue(L, 3);
|
jbe@79
|
520 lua_settable(L, -3);
|
jbe@79
|
521 return 0;
|
jbe@79
|
522 }
|
jbe@79
|
523
|
jbe@99
|
524 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
525 const char *host, *port;
|
jbe@98
|
526 struct addrinfo hints = { 0, };
|
jbe@98
|
527 struct addrinfo *res, *addrinfo;
|
jbe@98
|
528 int errcode;
|
jbe@98
|
529 int sock;
|
jbe@98
|
530 host = luaL_checkstring(L, 1);
|
jbe@98
|
531 port = luaL_checkstring(L, 2);
|
jbe@98
|
532 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
533 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
534 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
535 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
536 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
537 if (errcode) {
|
jbe@102
|
538 freeaddrinfo(res);
|
jbe@98
|
539 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
540 moonbr_io_errmsg();
|
jbe@98
|
541 lua_pushnil(L);
|
jbe@98
|
542 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
543 } else {
|
jbe@98
|
544 lua_pushnil(L);
|
jbe@98
|
545 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
546 }
|
jbe@98
|
547 return 2;
|
jbe@98
|
548 }
|
jbe@98
|
549 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@98
|
550 if (addrinfo->ai_family == PF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
551 }
|
jbe@98
|
552 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@98
|
553 if (addrinfo->ai_family == PF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
554 }
|
jbe@98
|
555 addrinfo = res;
|
jbe@98
|
556 moonbr_io_tcpconnect_found:
|
jbe@99
|
557 sock = socket(
|
jbe@99
|
558 addrinfo->ai_family,
|
jbe@99
|
559 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
560 addrinfo->ai_protocol
|
jbe@99
|
561 );
|
jbe@102
|
562 freeaddrinfo(res);
|
jbe@98
|
563 if (sock < 0) {
|
jbe@98
|
564 moonbr_io_errmsg();
|
jbe@98
|
565 lua_pushnil(L);
|
jbe@98
|
566 lua_pushstring(L, errmsg);
|
jbe@98
|
567 }
|
jbe@98
|
568 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@99
|
569 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
570 moonbr_io_errmsg();
|
jbe@99
|
571 close(sock);
|
jbe@99
|
572 lua_pushnil(L);
|
jbe@99
|
573 lua_pushstring(L, errmsg);
|
jbe@99
|
574 return 2;
|
jbe@99
|
575 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
576 moonbr_io_errmsg();
|
jbe@99
|
577 lua_pushnil(L);
|
jbe@99
|
578 lua_pushstring(L, errmsg);
|
jbe@99
|
579 return 2;
|
jbe@99
|
580 }
|
jbe@98
|
581 }
|
jbe@98
|
582 moonbr_io_pushhandle(L, sock, 1);
|
jbe@98
|
583 return 1;
|
jbe@98
|
584 }
|
jbe@98
|
585
|
jbe@99
|
586 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
587 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
588 }
|
jbe@99
|
589
|
jbe@99
|
590 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
591 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
592 }
|
jbe@99
|
593
|
jbe@79
|
594 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
595 {"read", moonbr_io_read},
|
jbe@85
|
596 {"read_nb", moonbr_io_read_nb},
|
jbe@86
|
597 {"drain", moonbr_io_drain},
|
jbe@86
|
598 {"drain_nb", moonbr_io_drain_nb},
|
jbe@80
|
599 {"write", moonbr_io_write},
|
jbe@81
|
600 {"write_nb", moonbr_io_write_nb},
|
jbe@80
|
601 {"flush", moonbr_io_flush},
|
jbe@81
|
602 {"flush_nb", moonbr_io_flush_nb},
|
jbe@88
|
603 {"finish", moonbr_io_finish},
|
jbe@87
|
604 {"close", moonbr_io_close},
|
jbe@85
|
605 {"reset", moonbr_io_reset},
|
jbe@79
|
606 {NULL, NULL}
|
jbe@79
|
607 };
|
jbe@79
|
608
|
jbe@79
|
609 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
610 {"__index", moonbr_io_handleindex},
|
jbe@79
|
611 {"__newindex", moonbr_io_handlenewindex},
|
jbe@88
|
612 {"__gc", moonbr_io_gc},
|
jbe@79
|
613 {NULL, NULL}
|
jbe@79
|
614 };
|
jbe@79
|
615
|
jbe@79
|
616 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@98
|
617 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
618 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@79
|
619 {NULL, NULL}
|
jbe@79
|
620 };
|
jbe@79
|
621
|
jbe@79
|
622 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
623
|
jbe@80
|
624 lua_newtable(L); // module
|
jbe@80
|
625
|
jbe@79
|
626 lua_newtable(L); // public metatable
|
jbe@79
|
627 lua_newtable(L); // handle methods
|
jbe@79
|
628 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
629 lua_pushvalue(L, -1);
|
jbe@80
|
630 lua_setfield(L, -4, "handle");
|
jbe@79
|
631 lua_setfield(L, -2, "__index");
|
jbe@79
|
632 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
633
|
jbe@79
|
634 lua_newtable(L); // handle metatable
|
jbe@79
|
635 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@79
|
636 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
637
|
jbe@79
|
638 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
639 return 1;
|
jbe@79
|
640
|
jbe@79
|
641 }
|
jbe@79
|
642
|