rev |
line source |
jbe@79
|
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
|
6 #include <string.h>
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jbe@79
|
7 #include <sys/socket.h>
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jbe@111
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8 #include <sys/un.h>
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jbe@79
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9 #include <sys/select.h>
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jbe@81
|
10 #include <fcntl.h>
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jbe@95
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11 #include <netinet/in.h>
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jbe@95
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12 #include <netinet/tcp.h>
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jbe@107
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13 #include <arpa/inet.h>
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jbe@98
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14 #include <sys/types.h>
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jbe@98
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15 #include <netdb.h>
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jbe@79
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16
|
jbe@79
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17 #include <lua.h>
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jbe@79
|
18 #include <lauxlib.h>
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jbe@79
|
19 #include <lualib.h>
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jbe@79
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20
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jbe@80
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21 #define MOONBR_IO_MAXSTRERRORLEN 80
|
jbe@85
|
22 #define MOONBR_IO_READBUFLEN 4096
|
jbe@80
|
23 #define MOONBR_IO_WRITEBUFLEN 4096
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jbe@80
|
24
|
jbe@108
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25 #define MOONBR_IO_LISTEN_BACKLOG 1024
|
jbe@108
|
26
|
jbe@80
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27 #define moonbr_io_errmsg() \
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jbe@80
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28 char errmsg[MOONBR_IO_MAXSTRERRORLEN]; \
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jbe@80
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29 strerror_r(errno, errmsg, MOONBR_IO_MAXSTRERRORLEN)
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jbe@80
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30
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jbe@79
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31 #define MOONBR_IO_HANDLE_MT_REGKEY "moonbridge_io_handle"
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jbe@79
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32 #define MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY "moonbridge_io_handle_public"
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jbe@108
|
33 #define MOONBR_IO_LISTENER_MT_REGKEY "moonbridge_io_listener"
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jbe@79
|
34
|
jbe@79
|
35 typedef struct {
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jbe@79
|
36 int fd;
|
jbe@107
|
37 int issock;
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jbe@107
|
38 sa_family_t addrfam;
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jbe@94
|
39 int finished;
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jbe@94
|
40 int closed;
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jbe@81
|
41 int nonblocking;
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jbe@95
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42 int nopush;
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jbe@85
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43 int readerr;
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jbe@105
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44 int readbufin;
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jbe@105
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45 int readbufout;
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jbe@81
|
46 int writeerr;
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jbe@83
|
47 size_t writeleft;
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jbe@83
|
48 #if LUA_VERSION_NUM >= 503
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jbe@83
|
49 lua_Integer writeqin;
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jbe@83
|
50 lua_Integer writeqout;
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jbe@83
|
51 #else
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jbe@83
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52 int writeqin;
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jbe@83
|
53 int writeqout;
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jbe@83
|
54 #endif
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jbe@83
|
55 size_t writeqoff;
|
jbe@103
|
56 int writebufin;
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jbe@103
|
57 int writebufout;
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jbe@85
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58 char readbuf[MOONBR_IO_READBUFLEN];
|
jbe@80
|
59 char writebuf[MOONBR_IO_WRITEBUFLEN];
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jbe@79
|
60 } moonbr_io_handle_t;
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jbe@79
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61
|
jbe@108
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62 typedef struct {
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jbe@108
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63 int fd;
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jbe@108
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64 int nonblocking;
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jbe@108
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65 } moonbr_io_listener_t;
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jbe@108
|
66
|
jbe@81
|
67 static void moonbr_io_handle_set_nonblocking(lua_State *L, moonbr_io_handle_t *handle, int nonblocking) {
|
jbe@95
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68 int flags;
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jbe@95
|
69 if (handle->nonblocking == nonblocking) return;
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jbe@95
|
70 flags = fcntl(handle->fd, F_GETFL, 0);
|
jbe@95
|
71 if (flags == -1) {
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jbe@95
|
72 moonbr_io_errmsg();
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jbe@96
|
73 close(handle->fd);
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jbe@96
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74 handle->fd = -1;
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jbe@96
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75 handle->closed = 1;
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jbe@95
|
76 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
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jbe@81
|
77 }
|
jbe@95
|
78 if (nonblocking) flags |= O_NONBLOCK;
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jbe@95
|
79 else flags &= ~O_NONBLOCK;
|
jbe@95
|
80 if (fcntl(handle->fd, F_SETFL, flags) == -1) {
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jbe@95
|
81 moonbr_io_errmsg();
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jbe@96
|
82 close(handle->fd);
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jbe@96
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83 handle->fd = -1;
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jbe@96
|
84 handle->closed = 1;
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jbe@95
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85 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@95
|
86 }
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jbe@95
|
87 handle->nonblocking = nonblocking;
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jbe@81
|
88 }
|
jbe@81
|
89
|
jbe@87
|
90 static void moonbr_io_handle_set_linger(lua_State *L, moonbr_io_handle_t *handle, int timeout) {
|
jbe@87
|
91 struct linger lingerval = { 0, };
|
jbe@107
|
92 if (!handle->issock) return;
|
jbe@87
|
93 if (timeout >= 0) {
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jbe@87
|
94 lingerval.l_onoff = 1;
|
jbe@87
|
95 lingerval.l_linger = timeout;
|
jbe@87
|
96 }
|
jbe@87
|
97 if (setsockopt(handle->fd, SOL_SOCKET, SO_LINGER, &lingerval, sizeof(lingerval))) {
|
jbe@87
|
98 moonbr_io_errmsg();
|
jbe@96
|
99 close(handle->fd);
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jbe@96
|
100 handle->fd = -1;
|
jbe@96
|
101 handle->closed = 1;
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jbe@95
|
102 luaL_error(L, "Unexpected error while setting SO_LINGER with setsockopt: %s", errmsg);
|
jbe@87
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103 }
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jbe@87
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104 }
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jbe@87
|
105
|
jbe@95
|
106 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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107 #if defined(TCP_NOPUSH) || defined(TCP_CORK)
|
jbe@107
|
108 if (
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jbe@107
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109 !(handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) ||
|
jbe@107
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110 handle->nopush == nopush
|
jbe@107
|
111 ) return;
|
jbe@96
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112 #if defined(TCP_NOPUSH)
|
jbe@96
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113 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_NOPUSH, &nopush, sizeof(nopush))) {
|
jbe@104
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114 #elif defined(TCP_CORK)
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jbe@104
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115 if (setsockopt(handle->fd, IPPROTO_TCP, TCP_CORK, &nopush, sizeof(nopush))) {
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jbe@104
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116 #endif
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jbe@96
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117 moonbr_io_errmsg();
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jbe@96
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118 close(handle->fd);
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jbe@96
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119 handle->fd = -1;
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jbe@96
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120 handle->closed = 1;
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jbe@104
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121 #if defined(TCP_NOPUSH)
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jbe@96
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122 luaL_error(L, "Unexpected error while setting TCP_NOPUSH with setsockopt: %s", errmsg);
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jbe@96
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123 #elif defined(TCP_CORK)
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jbe@95
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124 luaL_error(L, "Unexpected error while setting TCP_CORK with setsockopt: %s", errmsg);
|
jbe@104
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125 #endif
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jbe@95
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126 }
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jbe@95
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127 handle->nopush = nopush;
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jbe@96
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128 #else
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jbe@96
|
129 #warning Neither TCP_NOPUSH nor TCP_CORK is available
|
jbe@96
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130 #endif
|
jbe@95
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131 }
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jbe@95
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132
|
jbe@86
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133 static int moonbr_io_read_impl(lua_State *L, int nonblocking, int drain) {
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jbe@85
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134 moonbr_io_handle_t *handle;
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jbe@85
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135 lua_Integer maxread;
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jbe@85
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136 const char *terminatorstr;
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jbe@85
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137 size_t terminatorlen;
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jbe@85
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138 char terminator;
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jbe@85
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139 luaL_Buffer luabuf;
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jbe@85
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140 size_t luabufcnt = 0;
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jbe@105
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141 int remaining;
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jbe@85
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142 char *terminatorpos;
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jbe@103
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143 ssize_t bytesread;
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jbe@85
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144 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@85
|
145 maxread = luaL_optinteger(L, 2, 0);
|
jbe@85
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146 terminatorstr = luaL_optlstring(L, 3, "", &terminatorlen);
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jbe@85
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147 if (terminatorlen) {
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jbe@85
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148 luaL_argcheck(L, terminatorlen == 1, 3, "single byte expected");
|
jbe@85
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149 terminator = terminatorstr[0];
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jbe@85
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150 }
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jbe@86
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151 lua_settop(L, 1); /* return handle on drain, terminator string may be garbage collected */
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jbe@94
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152 if (handle->closed) luaL_error(L, "Attempt to read from a closed I/O handle");
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jbe@85
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153 if (handle->readerr) {
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jbe@85
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154 lua_pushnil(L);
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jbe@85
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155 lua_pushliteral(L, "Previous read error");
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jbe@85
|
156 return 2;
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jbe@85
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157 }
|
jbe@105
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158 handle->readerr = 1;
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jbe@104
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159 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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160 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
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jbe@86
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161 if (!drain) luaL_buffinit(L, &luabuf);
|
jbe@85
|
162 while (1) {
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jbe@105
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163 remaining = -1;
|
jbe@105
|
164 if (
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jbe@105
|
165 maxread > 0 &&
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jbe@105
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166 handle->readbufin - handle->readbufout >= (size_t)maxread - luabufcnt
|
jbe@105
|
167 ) {
|
jbe@105
|
168 remaining = maxread - luabufcnt;
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jbe@85
|
169 } else if (terminatorlen) {
|
jbe@105
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170 terminatorpos = memchr(
|
jbe@105
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171 handle->readbuf + handle->readbufout,
|
jbe@105
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172 terminator,
|
jbe@105
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173 handle->readbufin - handle->readbufout
|
jbe@105
|
174 );
|
jbe@105
|
175 if (terminatorpos) remaining = 1 + (
|
jbe@105
|
176 terminatorpos - (handle->readbuf + handle->readbufout)
|
jbe@105
|
177 );
|
jbe@85
|
178 }
|
jbe@105
|
179 if (remaining >= 0) {
|
jbe@86
|
180 if (!drain) {
|
jbe@105
|
181 luaL_addlstring(
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jbe@105
|
182 &luabuf,
|
jbe@105
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183 handle->readbuf + handle->readbufout,
|
jbe@105
|
184 remaining
|
jbe@105
|
185 );
|
jbe@86
|
186 luaL_pushresult(&luabuf);
|
jbe@90
|
187 } else {
|
jbe@105
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188 luaL_pushresult(&luabuf);
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jbe@105
|
189 lua_pop(L, 1);
|
jbe@105
|
190 lua_pushinteger(L, luabufcnt + remaining);
|
jbe@86
|
191 }
|
jbe@105
|
192 handle->readbufout += remaining;
|
jbe@105
|
193 if (handle->readbufout == handle->readbufin) {
|
jbe@105
|
194 handle->readbufin = 0;
|
jbe@105
|
195 handle->readbufout =0;
|
jbe@105
|
196 }
|
jbe@104
|
197 handle->readerr = 0;
|
jbe@85
|
198 return 1;
|
jbe@85
|
199 }
|
jbe@105
|
200 if (!drain) luaL_addlstring(
|
jbe@105
|
201 &luabuf,
|
jbe@105
|
202 handle->readbuf + handle->readbufout,
|
jbe@105
|
203 handle->readbufin - handle->readbufout
|
jbe@105
|
204 );
|
jbe@105
|
205 luabufcnt += handle->readbufin - handle->readbufout;
|
jbe@85
|
206 do {
|
jbe@103
|
207 bytesread = read(handle->fd, handle->readbuf, MOONBR_IO_READBUFLEN);
|
jbe@103
|
208 } while (bytesread < 0 && (errno == EINTR));
|
jbe@105
|
209 if (
|
jbe@105
|
210 bytesread == 0 || (
|
jbe@105
|
211 nonblocking &&
|
jbe@105
|
212 bytesread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK)
|
jbe@105
|
213 )
|
jbe@105
|
214 ) {
|
jbe@105
|
215 handle->readbufin = 0;
|
jbe@105
|
216 handle->readbufout = 0;
|
jbe@105
|
217 if (!drain) {
|
jbe@105
|
218 luaL_pushresult(&luabuf);
|
jbe@105
|
219 if (!luabufcnt && bytesread == 0) {
|
jbe@105
|
220 lua_pop(L, 1);
|
jbe@105
|
221 moonbr_io_read_impl_eof:
|
jbe@105
|
222 lua_pushboolean(L, 0);
|
jbe@105
|
223 lua_pushliteral(L, "End of file");
|
jbe@105
|
224 handle->readerr = 0;
|
jbe@105
|
225 return 2;
|
jbe@105
|
226 }
|
jbe@105
|
227 } else {
|
jbe@105
|
228 if (!luabufcnt && bytesread == 0) lua_pushboolean(L, 1);
|
jbe@105
|
229 else lua_pushboolean(L, luabufcnt);
|
jbe@105
|
230 }
|
jbe@105
|
231 handle->readerr = 0;
|
jbe@105
|
232 return 1;
|
jbe@105
|
233 }
|
jbe@103
|
234 if (bytesread < 0) {
|
jbe@85
|
235 moonbr_io_errmsg();
|
jbe@85
|
236 lua_pushnil(L);
|
jbe@85
|
237 lua_pushstring(L, errmsg);
|
jbe@85
|
238 return 2;
|
jbe@85
|
239 }
|
jbe@105
|
240 handle->readbufin = bytesread;
|
jbe@105
|
241 handle->readbufout = 0;
|
jbe@86
|
242 }
|
jbe@85
|
243 }
|
jbe@85
|
244
|
jbe@85
|
245 static int moonbr_io_read(lua_State *L) {
|
jbe@86
|
246 return moonbr_io_read_impl(L, 0, 0);
|
jbe@85
|
247 }
|
jbe@85
|
248
|
jbe@85
|
249 static int moonbr_io_read_nb(lua_State *L) {
|
jbe@86
|
250 return moonbr_io_read_impl(L, 1, 0);
|
jbe@86
|
251 }
|
jbe@86
|
252
|
jbe@86
|
253 static int moonbr_io_drain(lua_State *L) {
|
jbe@86
|
254 return moonbr_io_read_impl(L, 0, 1);
|
jbe@86
|
255 }
|
jbe@86
|
256
|
jbe@86
|
257 static int moonbr_io_drain_nb(lua_State *L) {
|
jbe@86
|
258 return moonbr_io_read_impl(L, 1, 1);
|
jbe@85
|
259 }
|
jbe@85
|
260
|
jbe@81
|
261 static int moonbr_io_write_impl(lua_State *L, int nonblocking, int flush) {
|
jbe@80
|
262 moonbr_io_handle_t *handle;
|
jbe@80
|
263 int i, top;
|
jbe@80
|
264 const char *str;
|
jbe@92
|
265 size_t strlen;
|
jbe@103
|
266 ssize_t written;
|
jbe@80
|
267 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
268 if (handle->closed) luaL_error(L, "Attempt to write to a closed I/O handle");
|
jbe@94
|
269 if (handle->finished) luaL_error(L, "Attempt to write to a finished I/O handle");
|
jbe@81
|
270 if (handle->writeerr) {
|
jbe@80
|
271 lua_pushnil(L);
|
jbe@80
|
272 lua_pushliteral(L, "Previous write error");
|
jbe@80
|
273 return 2;
|
jbe@80
|
274 }
|
jbe@103
|
275 handle->writeerr = 1;
|
jbe@81
|
276 moonbr_io_handle_set_nonblocking(L, handle, nonblocking);
|
jbe@84
|
277 top = lua_gettop(L);
|
jbe@81
|
278 lua_getuservalue(L, 1);
|
jbe@103
|
279 lua_getfield(L, -1, "writequeue");
|
jbe@84
|
280 for (i=2; i<=top; i++) {
|
jbe@84
|
281 luaL_checklstring(L, i, &strlen);
|
jbe@84
|
282 lua_pushvalue(L, i);
|
jbe@84
|
283 lua_rawseti(L, -2, handle->writeqin++);
|
jbe@84
|
284 handle->writeleft += strlen;
|
jbe@81
|
285 }
|
jbe@83
|
286 while (handle->writeqout != handle->writeqin) {
|
jbe@83
|
287 lua_rawgeti(L, -1, handle->writeqout);
|
jbe@81
|
288 str = lua_tolstring(L, -1, &strlen);
|
jbe@92
|
289 while (handle->writeqoff < strlen) {
|
jbe@103
|
290 if (
|
jbe@103
|
291 strlen - handle->writeqoff <=
|
jbe@103
|
292 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
293 ) {
|
jbe@103
|
294 memcpy(
|
jbe@103
|
295 handle->writebuf + handle->writebufin,
|
jbe@103
|
296 str + handle->writeqoff,
|
jbe@103
|
297 strlen - handle->writeqoff
|
jbe@103
|
298 );
|
jbe@103
|
299 handle->writebufin += strlen - handle->writeqoff;
|
jbe@80
|
300 break;
|
jbe@80
|
301 } else {
|
jbe@97
|
302 moonbr_io_handle_set_nopush(L, handle, 1);
|
jbe@103
|
303 memcpy(
|
jbe@103
|
304 handle->writebuf + handle->writebufin,
|
jbe@103
|
305 str + handle->writeqoff,
|
jbe@103
|
306 MOONBR_IO_WRITEBUFLEN - handle->writebufin
|
jbe@103
|
307 );
|
jbe@103
|
308 handle->writeqoff += MOONBR_IO_WRITEBUFLEN - handle->writebufin;
|
jbe@103
|
309 while (handle->writebufout < MOONBR_IO_WRITEBUFLEN) {
|
jbe@103
|
310 written = write(
|
jbe@103
|
311 handle->fd,
|
jbe@103
|
312 handle->writebuf + handle->writebufout,
|
jbe@103
|
313 MOONBR_IO_WRITEBUFLEN - handle->writebufout
|
jbe@103
|
314 );
|
jbe@103
|
315 if (written < 0) {
|
jbe@81
|
316 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
317 goto moonbr_io_write_impl_block;
|
jbe@81
|
318 } else if (errno != EINTR) {
|
jbe@80
|
319 moonbr_io_errmsg();
|
jbe@80
|
320 lua_pushnil(L);
|
jbe@80
|
321 lua_pushstring(L, errmsg);
|
jbe@80
|
322 return 2;
|
jbe@80
|
323 }
|
jbe@103
|
324 } else {
|
jbe@103
|
325 handle->writebufout += written;
|
jbe@103
|
326 handle->writeleft -= written;
|
jbe@80
|
327 }
|
jbe@80
|
328 }
|
jbe@103
|
329 handle->writebufin = 0;
|
jbe@103
|
330 handle->writebufout = 0;
|
jbe@80
|
331 }
|
jbe@80
|
332 }
|
jbe@81
|
333 handle->writeqoff = 0;
|
jbe@81
|
334 lua_pop(L, 1);
|
jbe@81
|
335 lua_pushnil(L);
|
jbe@83
|
336 lua_rawseti(L, -2, handle->writeqout++);
|
jbe@80
|
337 }
|
jbe@81
|
338 if (flush) {
|
jbe@97
|
339 moonbr_io_handle_set_nopush(L, handle, 0);
|
jbe@103
|
340 while (handle->writebufout < handle->writebufin) {
|
jbe@103
|
341 written = write(
|
jbe@103
|
342 handle->fd,
|
jbe@103
|
343 handle->writebuf + handle->writebufout,
|
jbe@103
|
344 handle->writebufin - handle->writebufout
|
jbe@103
|
345 );
|
jbe@103
|
346 if (written < 0) {
|
jbe@81
|
347 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@81
|
348 goto moonbr_io_write_impl_block;
|
jbe@81
|
349 } else if (errno != EINTR) {
|
jbe@81
|
350 moonbr_io_errmsg();
|
jbe@81
|
351 lua_pushnil(L);
|
jbe@81
|
352 lua_pushstring(L, errmsg);
|
jbe@81
|
353 return 2;
|
jbe@81
|
354 }
|
jbe@81
|
355 } else {
|
jbe@103
|
356 handle->writebufout += written;
|
jbe@103
|
357 handle->writeleft -= written;
|
jbe@81
|
358 }
|
jbe@81
|
359 }
|
jbe@103
|
360 handle->writebufin = 0;
|
jbe@103
|
361 handle->writebufout = 0;
|
jbe@81
|
362 }
|
jbe@103
|
363 if (nonblocking) lua_pushinteger(L, 0);
|
jbe@103
|
364 else lua_pushvalue(L, 1);
|
jbe@103
|
365 handle->writeerr = 0;
|
jbe@80
|
366 return 1;
|
jbe@81
|
367 moonbr_io_write_impl_block:
|
jbe@91
|
368 lua_pushinteger(L, handle->writeleft);
|
jbe@103
|
369 handle->writeerr = 0;
|
jbe@81
|
370 return 1;
|
jbe@81
|
371 }
|
jbe@81
|
372
|
jbe@81
|
373 static int moonbr_io_write(lua_State *L) {
|
jbe@81
|
374 return moonbr_io_write_impl(L, 0, 0);
|
jbe@81
|
375 }
|
jbe@81
|
376
|
jbe@81
|
377 static int moonbr_io_write_nb(lua_State *L) {
|
jbe@81
|
378 return moonbr_io_write_impl(L, 1, 0);
|
jbe@80
|
379 }
|
jbe@80
|
380
|
jbe@80
|
381 static int moonbr_io_flush(lua_State *L) {
|
jbe@81
|
382 return moonbr_io_write_impl(L, 0, 1);
|
jbe@81
|
383 }
|
jbe@81
|
384
|
jbe@81
|
385 static int moonbr_io_flush_nb(lua_State *L) {
|
jbe@81
|
386 return moonbr_io_write_impl(L, 1, 1);
|
jbe@80
|
387 }
|
jbe@80
|
388
|
jbe@88
|
389 static int moonbr_io_finish(lua_State *L) {
|
jbe@88
|
390 moonbr_io_handle_t *handle;
|
jbe@88
|
391 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
392 if (handle->closed) luaL_error(L, "Attempt to finish a closed I/O handle");
|
jbe@94
|
393 if (handle->finished) luaL_error(L, "Attempt to finish a finished I/O handle");
|
jbe@94
|
394 if (handle->writeleft) {
|
jbe@94
|
395 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@94
|
396 lua_pushvalue(L, 1);
|
jbe@94
|
397 lua_call(L, 1, 2);
|
jbe@94
|
398 if (!lua_toboolean(L, -2)) {
|
jbe@94
|
399 handle->finished = 1;
|
jbe@94
|
400 return 2;
|
jbe@88
|
401 }
|
jbe@94
|
402 }
|
jbe@94
|
403 handle->finished = 1;
|
jbe@107
|
404 if (handle->addrfam == AF_INET6 || handle->addrfam == AF_INET) {
|
jbe@88
|
405 if (shutdown(handle->fd, SHUT_WR)) {
|
jbe@88
|
406 moonbr_io_errmsg();
|
jbe@88
|
407 lua_pushnil(L);
|
jbe@88
|
408 lua_pushstring(L, errmsg);
|
jbe@88
|
409 return 2;
|
jbe@88
|
410 }
|
jbe@94
|
411 } else {
|
jbe@94
|
412 if (close(handle->fd)) {
|
jbe@94
|
413 moonbr_io_errmsg();
|
jbe@94
|
414 handle->fd = -1;
|
jbe@94
|
415 lua_pushnil(L);
|
jbe@94
|
416 lua_pushstring(L, errmsg);
|
jbe@94
|
417 return 2;
|
jbe@94
|
418 }
|
jbe@94
|
419 handle->fd = -1; /* fake EOF on read */
|
jbe@88
|
420 }
|
jbe@88
|
421 lua_pushboolean(L, 1);
|
jbe@88
|
422 return 1;
|
jbe@88
|
423 }
|
jbe@88
|
424
|
jbe@94
|
425 static int moonbr_io_close_impl(lua_State *L, int reset) {
|
jbe@83
|
426 moonbr_io_handle_t *handle;
|
jbe@83
|
427 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@94
|
428 if (handle->closed) luaL_error(L, "Attempt to close a closed I/O handle");
|
jbe@94
|
429 if (!reset) {
|
jbe@87
|
430 if (handle->writeleft) {
|
jbe@87
|
431 lua_pushcfunction(L, moonbr_io_flush);
|
jbe@87
|
432 lua_pushvalue(L, 1);
|
jbe@87
|
433 lua_call(L, 1, 2);
|
jbe@87
|
434 if (!lua_toboolean(L, -2)) {
|
jbe@87
|
435 close(handle->fd);
|
jbe@87
|
436 handle->fd = -1;
|
jbe@87
|
437 return 2;
|
jbe@87
|
438 }
|
jbe@83
|
439 }
|
jbe@94
|
440 moonbr_io_handle_set_linger(L, handle, -1);
|
jbe@83
|
441 }
|
jbe@94
|
442 if (handle->fd >= 0) {
|
jbe@94
|
443 if (close(handle->fd)) {
|
jbe@94
|
444 moonbr_io_errmsg();
|
jbe@94
|
445 handle->fd = -1;
|
jbe@94
|
446 lua_pushnil(L);
|
jbe@94
|
447 lua_pushstring(L, errmsg);
|
jbe@94
|
448 return 2;
|
jbe@94
|
449 }
|
jbe@104
|
450 handle->fd = -1;
|
jbe@83
|
451 }
|
jbe@83
|
452 lua_pushboolean(L, 1);
|
jbe@83
|
453 return 1;
|
jbe@84
|
454
|
jbe@83
|
455 }
|
jbe@83
|
456
|
jbe@94
|
457 static int moonbr_io_close(lua_State *L) {
|
jbe@94
|
458 return moonbr_io_close_impl(L, 0);
|
jbe@94
|
459 }
|
jbe@94
|
460
|
jbe@84
|
461 static int moonbr_io_reset(lua_State *L) {
|
jbe@94
|
462 return moonbr_io_close_impl(L, 1);
|
jbe@84
|
463 }
|
jbe@84
|
464
|
jbe@108
|
465 static int moonbr_io_handlegc(lua_State *L) {
|
jbe@88
|
466 moonbr_io_handle_t *handle;
|
jbe@88
|
467 handle = luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@88
|
468 if (handle->fd >= 0) {
|
jbe@88
|
469 lua_pushcfunction(L, moonbr_io_close);
|
jbe@88
|
470 lua_pushvalue(L, 1);
|
jbe@88
|
471 lua_pushinteger(L, 0);
|
jbe@88
|
472 lua_call(L, 2, 0);
|
jbe@88
|
473 }
|
jbe@88
|
474 return 0;
|
jbe@88
|
475 }
|
jbe@88
|
476
|
jbe@100
|
477 void moonbr_io_closehandle(lua_State *L, int idx, int reset) {
|
jbe@88
|
478 moonbr_io_handle_t *handle;
|
jbe@88
|
479 handle = luaL_checkudata(L, idx, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@100
|
480 if (!handle->closed) {
|
jbe@100
|
481 lua_pushcfunction(L, reset ? moonbr_io_reset : moonbr_io_close);
|
jbe@100
|
482 lua_pushvalue(L, idx < 0 ? idx-1 : idx);
|
jbe@100
|
483 lua_call(L, 1, 0);
|
jbe@88
|
484 }
|
jbe@88
|
485 }
|
jbe@88
|
486
|
jbe@107
|
487 void moonbr_io_pushhandle(lua_State *L, int fd) {
|
jbe@79
|
488 moonbr_io_handle_t *handle;
|
jbe@107
|
489 struct sockaddr addr;
|
jbe@107
|
490 socklen_t addrlen;
|
jbe@79
|
491 handle = lua_newuserdata(L, sizeof(moonbr_io_handle_t));
|
jbe@79
|
492 handle->fd = fd;
|
jbe@107
|
493 addrlen = sizeof(addr);
|
jbe@107
|
494 if (getsockname(fd, &addr, &addrlen)) {
|
jbe@107
|
495 if (errno != ENOTSOCK) {
|
jbe@107
|
496 moonbr_io_errmsg();
|
jbe@107
|
497 luaL_error(L, "Unexpected error when examining socket: %s", errmsg);
|
jbe@107
|
498 }
|
jbe@107
|
499 handle->issock = 0;
|
jbe@107
|
500 } else {
|
jbe@107
|
501 handle->issock = 1;
|
jbe@107
|
502 handle->addrfam = addr.sa_family;
|
jbe@107
|
503 }
|
jbe@94
|
504 handle->finished = 0;
|
jbe@94
|
505 handle->closed = 0;
|
jbe@81
|
506 handle->nonblocking = -1;
|
jbe@95
|
507 handle->nopush = -1;
|
jbe@85
|
508 handle->readerr = 0;
|
jbe@105
|
509 handle->readbufin = 0;
|
jbe@105
|
510 handle->readbufout = 0;
|
jbe@81
|
511 handle->writeerr = 0;
|
jbe@81
|
512 handle->writeleft = 0;
|
jbe@83
|
513 handle->writeqin = 0;
|
jbe@83
|
514 handle->writeqout = 0;
|
jbe@81
|
515 handle->writeqoff = 0;
|
jbe@103
|
516 handle->writebufin = 0;
|
jbe@103
|
517 handle->writebufout = 0;
|
jbe@87
|
518 moonbr_io_handle_set_linger(L, handle, 0);
|
jbe@79
|
519 luaL_getmetatable(L, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
520 lua_setmetatable(L, -2);
|
jbe@79
|
521 lua_newtable(L); // uservalue
|
jbe@81
|
522 lua_newtable(L);
|
jbe@103
|
523 lua_setfield(L, -2, "writequeue");
|
jbe@79
|
524 lua_newtable(L); // public
|
jbe@107
|
525 if (handle->addrfam == AF_INET6) {
|
jbe@107
|
526 struct sockaddr_in6 addr_in6;
|
jbe@107
|
527 char addrstrbuf[INET6_ADDRSTRLEN];
|
jbe@107
|
528 const char *addrstr;
|
jbe@107
|
529 addrlen = sizeof(addr_in6);
|
jbe@107
|
530 if (getsockname(fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
531 moonbr_io_errmsg();
|
jbe@107
|
532 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
533 }
|
jbe@107
|
534 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
535 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
536 }
|
jbe@107
|
537 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
538 if (!addrstr) {
|
jbe@107
|
539 moonbr_io_errmsg();
|
jbe@107
|
540 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
541 } else {
|
jbe@107
|
542 lua_pushstring(L, addrstr);
|
jbe@107
|
543 lua_setfield(L, -2, "local_ip6");
|
jbe@107
|
544 }
|
jbe@107
|
545 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
546 lua_setfield(L, -2, "local_tcpport");
|
jbe@107
|
547 if (getpeername(fd, (struct sockaddr *)&addr_in6, &addrlen)) {
|
jbe@107
|
548 moonbr_io_errmsg();
|
jbe@107
|
549 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
550 }
|
jbe@107
|
551 if (addrlen > sizeof(addr_in6)) {
|
jbe@107
|
552 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
553 }
|
jbe@107
|
554 addrstr = inet_ntop(AF_INET6, addr_in6.sin6_addr.s6_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
555 if (!addrstr) {
|
jbe@107
|
556 moonbr_io_errmsg();
|
jbe@107
|
557 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
558 } else {
|
jbe@107
|
559 lua_pushstring(L, addrstr);
|
jbe@107
|
560 lua_setfield(L, -2, "remote_ip6");
|
jbe@107
|
561 }
|
jbe@107
|
562 lua_pushinteger(L, ntohs(addr_in6.sin6_port));
|
jbe@107
|
563 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
564 } else if (handle->addrfam == AF_INET) {
|
jbe@107
|
565 struct sockaddr_in addr_in;
|
jbe@107
|
566 char addrstrbuf[INET_ADDRSTRLEN];
|
jbe@107
|
567 const char *addrstr;
|
jbe@107
|
568 addrlen = sizeof(addr_in);
|
jbe@107
|
569 if (getsockname(fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
570 moonbr_io_errmsg();
|
jbe@107
|
571 luaL_error(L, "Could not determine local IP address/port: %s", errmsg);
|
jbe@107
|
572 }
|
jbe@107
|
573 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
574 luaL_error(L, "Could not determine local IP address/port: buffer size exceeded");
|
jbe@107
|
575 }
|
jbe@107
|
576 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
577 if (!addrstr) {
|
jbe@107
|
578 moonbr_io_errmsg();
|
jbe@107
|
579 luaL_error(L, "Could not format local IP address: %s", errmsg);
|
jbe@107
|
580 } else {
|
jbe@107
|
581 lua_pushstring(L, addrstr);
|
jbe@107
|
582 lua_setfield(L, -2, "local_ip4");
|
jbe@107
|
583 }
|
jbe@107
|
584 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
585 lua_setfield(L, -2, "local_tcpport");
|
jbe@107
|
586 if (getpeername(fd, (struct sockaddr *)&addr_in, &addrlen)) {
|
jbe@107
|
587 moonbr_io_errmsg();
|
jbe@107
|
588 luaL_error(L, "Could not determine remote IP address/port: %s", errmsg);
|
jbe@107
|
589 }
|
jbe@107
|
590 if (addrlen > sizeof(addr_in)) {
|
jbe@107
|
591 luaL_error(L, "Could not determine remote IP address/port: buffer size exceeded");
|
jbe@107
|
592 }
|
jbe@107
|
593 addrstr = inet_ntop(AF_INET, &addr_in.sin_addr.s_addr, addrstrbuf, sizeof(addrstrbuf));
|
jbe@107
|
594 if (!addrstr) {
|
jbe@107
|
595 moonbr_io_errmsg();
|
jbe@107
|
596 luaL_error(L, "Could not format remote IP address: %s", errmsg);
|
jbe@107
|
597 } else {
|
jbe@107
|
598 lua_pushstring(L, addrstr);
|
jbe@107
|
599 lua_setfield(L, -2, "remote_ip4");
|
jbe@107
|
600 }
|
jbe@107
|
601 lua_pushinteger(L, ntohs(addr_in.sin_port));
|
jbe@107
|
602 lua_setfield(L, -2, "remote_tcpport");
|
jbe@107
|
603 }
|
jbe@79
|
604 luaL_getmetatable(L, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
605 lua_setmetatable(L, -2);
|
jbe@79
|
606 lua_setfield(L, -2, "public");
|
jbe@79
|
607 lua_setuservalue(L, -2);
|
jbe@79
|
608 }
|
jbe@79
|
609
|
jbe@79
|
610 static int moonbr_io_handleindex(lua_State *L) {
|
jbe@80
|
611 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
612 lua_getuservalue(L, 1);
|
jbe@79
|
613 lua_getfield(L, -1, "public");
|
jbe@79
|
614 lua_pushvalue(L, 2);
|
jbe@79
|
615 lua_gettable(L, -2);
|
jbe@79
|
616 return 1;
|
jbe@79
|
617 }
|
jbe@79
|
618
|
jbe@79
|
619 static int moonbr_io_handlenewindex(lua_State *L) {
|
jbe@80
|
620 luaL_checkudata(L, 1, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
621 lua_getuservalue(L, 1);
|
jbe@79
|
622 lua_getfield(L, -1, "public");
|
jbe@79
|
623 lua_pushvalue(L, 2);
|
jbe@79
|
624 lua_pushvalue(L, 3);
|
jbe@79
|
625 lua_settable(L, -3);
|
jbe@79
|
626 return 0;
|
jbe@79
|
627 }
|
jbe@79
|
628
|
jbe@111
|
629 static int moonbr_io_localconnect_impl(lua_State *L, int nonblocking) {
|
jbe@111
|
630 const char *path;
|
jbe@111
|
631 struct sockaddr_un sockaddr = { .sun_family = AF_LOCAL };
|
jbe@111
|
632 const int path_maxlen = sizeof(struct sockaddr_un) - (
|
jbe@111
|
633 (void *)sockaddr.sun_path - (void *)&sockaddr
|
jbe@111
|
634 ) - 1; /* one byte for termination */
|
jbe@111
|
635 int sock;
|
jbe@111
|
636 path = luaL_checkstring(L, 1);
|
jbe@111
|
637 if (strlen(path) > path_maxlen) luaL_error(L, "Path too long; only %i characters allowed", path_maxlen);
|
jbe@111
|
638 strcpy(sockaddr.sun_path, path);
|
jbe@111
|
639 sock = socket(
|
jbe@111
|
640 PF_LOCAL,
|
jbe@111
|
641 SOCK_STREAM | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@111
|
642 0
|
jbe@111
|
643 );
|
jbe@111
|
644 if (sock < 0) {
|
jbe@111
|
645 moonbr_io_errmsg();
|
jbe@111
|
646 lua_pushnil(L);
|
jbe@111
|
647 lua_pushstring(L, errmsg);
|
jbe@111
|
648 return 2;
|
jbe@111
|
649 }
|
jbe@111
|
650 if (connect(sock, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
|
jbe@111
|
651 if (!nonblocking && errno == EINTR) {
|
jbe@111
|
652 moonbr_io_errmsg();
|
jbe@111
|
653 close(sock);
|
jbe@111
|
654 lua_pushnil(L);
|
jbe@111
|
655 lua_pushstring(L, errmsg);
|
jbe@111
|
656 return 2;
|
jbe@111
|
657 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@111
|
658 moonbr_io_errmsg();
|
jbe@111
|
659 lua_pushnil(L);
|
jbe@111
|
660 lua_pushstring(L, errmsg);
|
jbe@111
|
661 return 2;
|
jbe@111
|
662 }
|
jbe@111
|
663 }
|
jbe@111
|
664 moonbr_io_pushhandle(L, sock);
|
jbe@111
|
665 return 1;
|
jbe@111
|
666 }
|
jbe@111
|
667
|
jbe@111
|
668 static int moonbr_io_localconnect(lua_State *L) {
|
jbe@111
|
669 return moonbr_io_localconnect_impl(L, 0);
|
jbe@111
|
670 }
|
jbe@111
|
671
|
jbe@111
|
672 static int moonbr_io_localconnect_nb(lua_State *L) {
|
jbe@111
|
673 return moonbr_io_localconnect_impl(L, 1);
|
jbe@111
|
674 }
|
jbe@111
|
675
|
jbe@99
|
676 static int moonbr_io_tcpconnect_impl(lua_State *L, int nonblocking) {
|
jbe@98
|
677 const char *host, *port;
|
jbe@98
|
678 struct addrinfo hints = { 0, };
|
jbe@98
|
679 struct addrinfo *res, *addrinfo;
|
jbe@98
|
680 int errcode;
|
jbe@98
|
681 int sock;
|
jbe@98
|
682 host = luaL_checkstring(L, 1);
|
jbe@98
|
683 port = luaL_checkstring(L, 2);
|
jbe@98
|
684 hints.ai_family = AF_UNSPEC;
|
jbe@98
|
685 hints.ai_socktype = SOCK_STREAM;
|
jbe@98
|
686 hints.ai_protocol = IPPROTO_TCP;
|
jbe@98
|
687 hints.ai_flags = AI_ADDRCONFIG;
|
jbe@98
|
688 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@98
|
689 if (errcode) {
|
jbe@102
|
690 freeaddrinfo(res);
|
jbe@98
|
691 if (errcode == EAI_SYSTEM) {
|
jbe@98
|
692 moonbr_io_errmsg();
|
jbe@98
|
693 lua_pushnil(L);
|
jbe@98
|
694 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@98
|
695 } else {
|
jbe@98
|
696 lua_pushnil(L);
|
jbe@98
|
697 lua_pushstring(L, gai_strerror(errcode));
|
jbe@98
|
698 }
|
jbe@98
|
699 return 2;
|
jbe@98
|
700 }
|
jbe@98
|
701 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@98
|
702 if (addrinfo->ai_family == PF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
703 }
|
jbe@98
|
704 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@98
|
705 if (addrinfo->ai_family == PF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@98
|
706 }
|
jbe@98
|
707 addrinfo = res;
|
jbe@98
|
708 moonbr_io_tcpconnect_found:
|
jbe@99
|
709 sock = socket(
|
jbe@99
|
710 addrinfo->ai_family,
|
jbe@99
|
711 addrinfo->ai_socktype | SOCK_CLOEXEC | (nonblocking ? SOCK_NONBLOCK : 0),
|
jbe@99
|
712 addrinfo->ai_protocol
|
jbe@99
|
713 );
|
jbe@98
|
714 if (sock < 0) {
|
jbe@98
|
715 moonbr_io_errmsg();
|
jbe@108
|
716 freeaddrinfo(res);
|
jbe@98
|
717 lua_pushnil(L);
|
jbe@98
|
718 lua_pushstring(L, errmsg);
|
jbe@108
|
719 return 2;
|
jbe@98
|
720 }
|
jbe@98
|
721 if (connect(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
722 freeaddrinfo(res);
|
jbe@99
|
723 if (!nonblocking && errno == EINTR) {
|
jbe@99
|
724 moonbr_io_errmsg();
|
jbe@99
|
725 close(sock);
|
jbe@99
|
726 lua_pushnil(L);
|
jbe@99
|
727 lua_pushstring(L, errmsg);
|
jbe@99
|
728 return 2;
|
jbe@99
|
729 } else if (!(nonblocking && (errno == EINPROGRESS || errno == EINTR))) {
|
jbe@99
|
730 moonbr_io_errmsg();
|
jbe@99
|
731 lua_pushnil(L);
|
jbe@99
|
732 lua_pushstring(L, errmsg);
|
jbe@99
|
733 return 2;
|
jbe@99
|
734 }
|
jbe@108
|
735 } else {
|
jbe@108
|
736 freeaddrinfo(res);
|
jbe@98
|
737 }
|
jbe@107
|
738 moonbr_io_pushhandle(L, sock);
|
jbe@98
|
739 return 1;
|
jbe@98
|
740 }
|
jbe@98
|
741
|
jbe@99
|
742 static int moonbr_io_tcpconnect(lua_State *L) {
|
jbe@99
|
743 return moonbr_io_tcpconnect_impl(L, 0);
|
jbe@99
|
744 }
|
jbe@99
|
745
|
jbe@99
|
746 static int moonbr_io_tcpconnect_nb(lua_State *L) {
|
jbe@99
|
747 return moonbr_io_tcpconnect_impl(L, 1);
|
jbe@99
|
748 }
|
jbe@99
|
749
|
jbe@108
|
750 static int moonbr_io_tcplisten(lua_State *L) {
|
jbe@108
|
751 moonbr_io_listener_t *listener;
|
jbe@108
|
752 const char *host, *port;
|
jbe@108
|
753 struct addrinfo hints = { 0, };
|
jbe@108
|
754 struct addrinfo *res, *addrinfo;
|
jbe@108
|
755 int errcode;
|
jbe@108
|
756 int sock;
|
jbe@108
|
757 host = luaL_optstring(L, 1, NULL);
|
jbe@108
|
758 port = luaL_checkstring(L, 2);
|
jbe@108
|
759 listener = lua_newuserdata(L, sizeof(moonbr_io_listener_t));
|
jbe@108
|
760 luaL_setmetatable(L, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
761 hints.ai_family = AF_UNSPEC;
|
jbe@108
|
762 hints.ai_socktype = SOCK_STREAM;
|
jbe@108
|
763 hints.ai_protocol = IPPROTO_TCP;
|
jbe@108
|
764 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
|
jbe@108
|
765 errcode = getaddrinfo(host, port, &hints, &res);
|
jbe@108
|
766 if (errcode) {
|
jbe@108
|
767 freeaddrinfo(res);
|
jbe@108
|
768 if (errcode == EAI_SYSTEM) {
|
jbe@108
|
769 moonbr_io_errmsg();
|
jbe@108
|
770 lua_pushnil(L);
|
jbe@108
|
771 lua_pushfstring(L, "%s: %s", gai_strerror(errcode), errmsg);
|
jbe@108
|
772 } else {
|
jbe@108
|
773 lua_pushnil(L);
|
jbe@108
|
774 lua_pushstring(L, gai_strerror(errcode));
|
jbe@108
|
775 }
|
jbe@108
|
776 return 2;
|
jbe@108
|
777 }
|
jbe@108
|
778 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@108
|
779 if (addrinfo->ai_family == PF_INET6) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
780 }
|
jbe@108
|
781 for (addrinfo=res; addrinfo; addrinfo=addrinfo->ai_next) {
|
jbe@108
|
782 if (addrinfo->ai_family == PF_INET) goto moonbr_io_tcpconnect_found;
|
jbe@108
|
783 }
|
jbe@108
|
784 addrinfo = res;
|
jbe@108
|
785 moonbr_io_tcpconnect_found:
|
jbe@108
|
786 sock = socket(
|
jbe@108
|
787 addrinfo->ai_family,
|
jbe@108
|
788 addrinfo->ai_socktype | SOCK_CLOEXEC,
|
jbe@108
|
789 addrinfo->ai_protocol
|
jbe@108
|
790 );
|
jbe@108
|
791 if (sock < 0) {
|
jbe@108
|
792 moonbr_io_errmsg();
|
jbe@108
|
793 freeaddrinfo(res);
|
jbe@108
|
794 lua_pushnil(L);
|
jbe@108
|
795 lua_pushstring(L, errmsg);
|
jbe@108
|
796 return 2;
|
jbe@108
|
797 }
|
jbe@108
|
798 if (bind(sock, addrinfo->ai_addr, addrinfo->ai_addrlen)) {
|
jbe@108
|
799 moonbr_io_errmsg();
|
jbe@108
|
800 freeaddrinfo(res);
|
jbe@108
|
801 close(sock);
|
jbe@108
|
802 lua_pushnil(L);
|
jbe@108
|
803 lua_pushstring(L, errmsg);
|
jbe@108
|
804 return 2;
|
jbe@108
|
805 }
|
jbe@108
|
806 freeaddrinfo(res);
|
jbe@108
|
807 if (listen(sock, MOONBR_IO_LISTEN_BACKLOG)) {
|
jbe@108
|
808 moonbr_io_errmsg();
|
jbe@108
|
809 close(sock);
|
jbe@108
|
810 lua_pushnil(L);
|
jbe@108
|
811 lua_pushstring(L, errmsg);
|
jbe@108
|
812 return 2;
|
jbe@108
|
813 }
|
jbe@108
|
814 listener->fd = sock;
|
jbe@108
|
815 listener->nonblocking = -1;
|
jbe@108
|
816 return 1;
|
jbe@108
|
817 }
|
jbe@108
|
818
|
jbe@108
|
819 static int moonbr_io_accept_impl(lua_State *L, int nonblocking) {
|
jbe@108
|
820 moonbr_io_listener_t *listener;
|
jbe@108
|
821 int fd;
|
jbe@108
|
822 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
823 if (listener->fd < 0) luaL_error(L, "Attempt to use a closed listener");
|
jbe@108
|
824 if (listener->nonblocking != nonblocking) {
|
jbe@108
|
825 int flags;
|
jbe@108
|
826 flags = fcntl(listener->fd, F_GETFL, 0);
|
jbe@108
|
827 if (flags == -1) {
|
jbe@108
|
828 moonbr_io_errmsg();
|
jbe@108
|
829 close(listener->fd);
|
jbe@108
|
830 listener->fd = -1;
|
jbe@108
|
831 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
832 }
|
jbe@108
|
833 if (nonblocking) flags |= O_NONBLOCK;
|
jbe@108
|
834 else flags &= ~O_NONBLOCK;
|
jbe@108
|
835 if (fcntl(listener->fd, F_SETFL, flags) == -1) {
|
jbe@108
|
836 moonbr_io_errmsg();
|
jbe@108
|
837 close(listener->fd);
|
jbe@108
|
838 listener->fd = -1;
|
jbe@108
|
839 luaL_error(L, "Unexpected error in fcntl call: %s", errmsg);
|
jbe@108
|
840 }
|
jbe@108
|
841 listener->nonblocking = nonblocking;
|
jbe@108
|
842 }
|
jbe@108
|
843 while (1) {
|
jbe@108
|
844 fd = accept4(listener->fd, NULL, NULL, SOCK_CLOEXEC);
|
jbe@108
|
845 if (fd < 0) {
|
jbe@108
|
846 if (nonblocking && (errno == EAGAIN || errno == EWOULDBLOCK)) {
|
jbe@108
|
847 lua_pushboolean(L, 0);
|
jbe@108
|
848 lua_pushliteral(L, "No incoming connection pending");
|
jbe@108
|
849 return 2;
|
jbe@108
|
850 } else if (errno != EINTR) {
|
jbe@108
|
851 moonbr_io_errmsg();
|
jbe@108
|
852 lua_pushnil(L);
|
jbe@108
|
853 lua_pushstring(L, errmsg);
|
jbe@108
|
854 return 2;
|
jbe@108
|
855 }
|
jbe@108
|
856 } else {
|
jbe@108
|
857 moonbr_io_pushhandle(L, fd);
|
jbe@108
|
858 return 1;
|
jbe@108
|
859 }
|
jbe@108
|
860 }
|
jbe@108
|
861 }
|
jbe@108
|
862
|
jbe@108
|
863 static int moonbr_io_accept(lua_State *L) {
|
jbe@108
|
864 return moonbr_io_accept_impl(L, 0);
|
jbe@108
|
865 }
|
jbe@108
|
866
|
jbe@108
|
867 static int moonbr_io_accept_nb(lua_State *L) {
|
jbe@108
|
868 return moonbr_io_accept_impl(L, 1);
|
jbe@108
|
869 }
|
jbe@108
|
870
|
jbe@108
|
871 static int moonbr_io_unlisten(lua_State *L) {
|
jbe@108
|
872 moonbr_io_listener_t *listener;
|
jbe@108
|
873 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
874 if (listener->fd < 0) luaL_error(L, "Attempt to close a closed listener");
|
jbe@108
|
875 if (close(listener->fd)) {
|
jbe@108
|
876 moonbr_io_errmsg();
|
jbe@108
|
877 listener->fd = -1;
|
jbe@108
|
878 lua_pushnil(L);
|
jbe@108
|
879 lua_pushstring(L, errmsg);
|
jbe@108
|
880 return 2;
|
jbe@108
|
881 }
|
jbe@108
|
882 listener->fd = -1;
|
jbe@108
|
883 lua_pushboolean(L, 1);
|
jbe@108
|
884 return 1;
|
jbe@108
|
885 }
|
jbe@108
|
886
|
jbe@108
|
887 static int moonbr_io_listenergc(lua_State *L) {
|
jbe@108
|
888 moonbr_io_listener_t *listener;
|
jbe@108
|
889 listener = luaL_checkudata(L, 1, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
890 if (listener->fd) close(listener->fd);
|
jbe@108
|
891 listener->fd = -1;
|
jbe@108
|
892 return 0;
|
jbe@108
|
893 }
|
jbe@108
|
894
|
jbe@106
|
895 static int moonbr_io_poll(lua_State *L) {
|
jbe@106
|
896 moonbr_io_handle_t *handle;
|
jbe@108
|
897 moonbr_io_listener_t *listener;
|
jbe@106
|
898 int fd, isnum;
|
jbe@106
|
899 int nfds = 0;
|
jbe@106
|
900 fd_set readfds, writefds, exceptfds;
|
jbe@106
|
901 struct timeval timeout = {0, };
|
jbe@106
|
902 int status;
|
jbe@106
|
903 FD_ZERO(&readfds);
|
jbe@106
|
904 FD_ZERO(&writefds);
|
jbe@106
|
905 FD_ZERO(&exceptfds);
|
jbe@106
|
906 if (!lua_isnoneornil(L, 1)) {
|
jbe@106
|
907 luaL_checktype(L, 1, LUA_TTABLE);
|
jbe@106
|
908 for (lua_pushnil(L); lua_next(L, 1); lua_pop(L, 1)) {
|
jbe@106
|
909 if (lua_toboolean(L, -1)) {
|
jbe@106
|
910 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
911 if (handle) {
|
jbe@109
|
912 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@106
|
913 fd = handle->fd;
|
jbe@109
|
914 if (fd < 0) { /* fake EOF to simulate shutdown */
|
jbe@109
|
915 lua_pushboolean(L, 1);
|
jbe@109
|
916 return 1;
|
jbe@109
|
917 }
|
jbe@106
|
918 } else {
|
jbe@108
|
919 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
920 if (listener) {
|
jbe@108
|
921 fd = listener->fd;
|
jbe@108
|
922 if (fd < 0) luaL_error(L, "Attempt to poll a closed listener");
|
jbe@108
|
923 } else {
|
jbe@108
|
924 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@108
|
925 if (!isnum) luaL_error(L, "Expected integer (file descriptor), I/O handle, or listener in table key");
|
jbe@108
|
926 }
|
jbe@106
|
927 }
|
jbe@106
|
928 FD_SET(fd, &readfds);
|
jbe@106
|
929 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
930 }
|
jbe@106
|
931 }
|
jbe@106
|
932 }
|
jbe@106
|
933 if (!lua_isnoneornil(L, 2)) {
|
jbe@106
|
934 luaL_checktype(L, 2, LUA_TTABLE);
|
jbe@106
|
935 for (lua_pushnil(L); lua_next(L, 2); lua_pop(L, 1)) {
|
jbe@106
|
936 if (lua_toboolean(L, -1)) {
|
jbe@106
|
937 handle = luaL_testudata(L, -2, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@106
|
938 if (handle) {
|
jbe@109
|
939 if (handle->closed) luaL_error(L, "Attempt to poll a closed connection");
|
jbe@109
|
940 if (handle->finished) luaL_error(L, "Attempt to write-poll a finished connection");
|
jbe@106
|
941 fd = handle->fd;
|
jbe@106
|
942 } else {
|
jbe@108
|
943 listener = luaL_testudata(L, -2, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@109
|
944 if (listener) luaL_error(L, "Attempt to write-poll a listener");
|
jbe@109
|
945 fd = lua_tointegerx(L, -2, &isnum);
|
jbe@109
|
946 if (!isnum) luaL_error(L, "Expected integer (file descriptor) or I/O handle in table key");
|
jbe@106
|
947 }
|
jbe@106
|
948 FD_SET(fd, &writefds);
|
jbe@106
|
949 if (fd+1 > nfds) nfds = fd+1;
|
jbe@106
|
950 }
|
jbe@106
|
951 }
|
jbe@106
|
952 }
|
jbe@106
|
953 if (!lua_isnoneornil(L, 3)) {
|
jbe@106
|
954 lua_Number n;
|
jbe@106
|
955 n = lua_tonumberx(L, 3, &isnum);
|
jbe@106
|
956 if (isnum && n>=0 && n<100000000) {
|
jbe@106
|
957 timeout.tv_sec = n;
|
jbe@106
|
958 timeout.tv_usec = 1e6 * (n - timeout.tv_sec);
|
jbe@106
|
959 } else {
|
jbe@106
|
960 luaL_argcheck(L, 0, 3, "not a valid timeout");
|
jbe@106
|
961 }
|
jbe@106
|
962 status = select(nfds, &readfds, &writefds, &exceptfds, &timeout);
|
jbe@106
|
963 } else {
|
jbe@106
|
964 status = select(nfds, &readfds, &writefds, &exceptfds, NULL);
|
jbe@106
|
965 }
|
jbe@106
|
966 if (status == -1) {
|
jbe@106
|
967 if (errno == EINTR) {
|
jbe@106
|
968 lua_pushboolean(L, 0);
|
jbe@106
|
969 lua_pushliteral(L, "Signal received while polling file descriptors");
|
jbe@106
|
970 return 2;
|
jbe@106
|
971 } else {
|
jbe@106
|
972 moonbr_io_errmsg();
|
jbe@106
|
973 return luaL_error(L, "Unexpected error during \"select\" system call: %s", errmsg);
|
jbe@106
|
974 }
|
jbe@106
|
975 } else if (status == 0) {
|
jbe@106
|
976 lua_pushboolean(L, 0);
|
jbe@106
|
977 lua_pushliteral(L, "Timeout while polling file descriptors");
|
jbe@106
|
978 return 2;
|
jbe@106
|
979 } else {
|
jbe@106
|
980 lua_pushboolean(L, 1);
|
jbe@106
|
981 return 1;
|
jbe@106
|
982 }
|
jbe@106
|
983 }
|
jbe@106
|
984
|
jbe@79
|
985 static const struct luaL_Reg moonbr_io_handle_methods[] = {
|
jbe@85
|
986 {"read", moonbr_io_read},
|
jbe@85
|
987 {"read_nb", moonbr_io_read_nb},
|
jbe@86
|
988 {"drain", moonbr_io_drain},
|
jbe@86
|
989 {"drain_nb", moonbr_io_drain_nb},
|
jbe@80
|
990 {"write", moonbr_io_write},
|
jbe@81
|
991 {"write_nb", moonbr_io_write_nb},
|
jbe@80
|
992 {"flush", moonbr_io_flush},
|
jbe@81
|
993 {"flush_nb", moonbr_io_flush_nb},
|
jbe@88
|
994 {"finish", moonbr_io_finish},
|
jbe@87
|
995 {"close", moonbr_io_close},
|
jbe@85
|
996 {"reset", moonbr_io_reset},
|
jbe@79
|
997 {NULL, NULL}
|
jbe@79
|
998 };
|
jbe@79
|
999
|
jbe@79
|
1000 static const struct luaL_Reg moonbr_io_handle_metamethods[] = {
|
jbe@79
|
1001 {"__index", moonbr_io_handleindex},
|
jbe@79
|
1002 {"__newindex", moonbr_io_handlenewindex},
|
jbe@108
|
1003 {"__gc", moonbr_io_handlegc},
|
jbe@108
|
1004 {NULL, NULL}
|
jbe@108
|
1005 };
|
jbe@108
|
1006
|
jbe@108
|
1007 static const struct luaL_Reg moonbr_io_listener_methods[] = {
|
jbe@108
|
1008 {"accept", moonbr_io_accept},
|
jbe@108
|
1009 {"accept_nb", moonbr_io_accept_nb},
|
jbe@108
|
1010 {"close", moonbr_io_unlisten},
|
jbe@108
|
1011 {NULL, NULL}
|
jbe@108
|
1012 };
|
jbe@108
|
1013
|
jbe@108
|
1014 static const struct luaL_Reg moonbr_io_listener_metamethods[] = {
|
jbe@108
|
1015 {"__gc", moonbr_io_listenergc},
|
jbe@79
|
1016 {NULL, NULL}
|
jbe@79
|
1017 };
|
jbe@79
|
1018
|
jbe@79
|
1019 static const struct luaL_Reg moonbr_io_module_funcs[] = {
|
jbe@111
|
1020 {"localconnect", moonbr_io_localconnect},
|
jbe@111
|
1021 {"localconnect_nb", moonbr_io_localconnect_nb},
|
jbe@98
|
1022 {"tcpconnect", moonbr_io_tcpconnect},
|
jbe@99
|
1023 {"tcpconnect_nb", moonbr_io_tcpconnect_nb},
|
jbe@108
|
1024 {"tcplisten", moonbr_io_tcplisten},
|
jbe@106
|
1025 {"poll", moonbr_io_poll},
|
jbe@79
|
1026 {NULL, NULL}
|
jbe@79
|
1027 };
|
jbe@79
|
1028
|
jbe@79
|
1029 int luaopen_moonbridge_io(lua_State *L) {
|
jbe@79
|
1030
|
jbe@80
|
1031 lua_newtable(L); // module
|
jbe@80
|
1032
|
jbe@79
|
1033 lua_newtable(L); // public metatable
|
jbe@79
|
1034 lua_newtable(L); // handle methods
|
jbe@79
|
1035 luaL_setfuncs(L, moonbr_io_handle_methods, 0);
|
jbe@80
|
1036 lua_pushvalue(L, -1);
|
jbe@108
|
1037 lua_setfield(L, -4, "prototype_handle");
|
jbe@79
|
1038 lua_setfield(L, -2, "__index");
|
jbe@79
|
1039 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_PUBLIC_MT_REGKEY);
|
jbe@79
|
1040
|
jbe@79
|
1041 lua_newtable(L); // handle metatable
|
jbe@79
|
1042 luaL_setfuncs(L, moonbr_io_handle_metamethods, 0);
|
jbe@79
|
1043 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_HANDLE_MT_REGKEY);
|
jbe@79
|
1044
|
jbe@108
|
1045 lua_newtable(L); // listener metatable
|
jbe@108
|
1046 luaL_setfuncs(L, moonbr_io_listener_metamethods, 0);
|
jbe@108
|
1047 lua_newtable(L); // listener methods
|
jbe@108
|
1048 luaL_setfuncs(L, moonbr_io_listener_methods, 0);
|
jbe@108
|
1049 lua_pushvalue(L, -1);
|
jbe@108
|
1050 lua_setfield(L, -4, "prototype_listener");
|
jbe@108
|
1051 lua_setfield(L, -2, "__index");
|
jbe@108
|
1052 lua_setfield(L, LUA_REGISTRYINDEX, MOONBR_IO_LISTENER_MT_REGKEY);
|
jbe@108
|
1053
|
jbe@79
|
1054 luaL_setfuncs(L, moonbr_io_module_funcs, 0);
|
jbe@79
|
1055 return 1;
|
jbe@79
|
1056
|
jbe@79
|
1057 }
|
jbe@79
|
1058
|