prosody
6b4d28eb19cf
util-src/poll.c

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util-src/poll.c @ 9446:6b4d28eb19cf

util.poll: Fix missing return for adding duplicate FD
author Kim Alvefur <zash@zash.se>
date Sun, 07 Oct 2018 18:41:44 +0200
parent 9440:1ddecde4ce98
child 9447:6397e965a22d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /*
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3 * Lua polling library
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4 * Copyright (C) 2017-2018 Kim Alvefur
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5 *
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6 * This project is MIT licensed. Please see the
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7 * COPYING file in the source package for more information.
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8 *
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9 */
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10
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11 #include <unistd.h>
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12 #include <string.h>
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13 #include <errno.h>
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14
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15 #ifdef __linux__
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16 #define USE_EPOLL
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17 #endif
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18
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19 #ifdef USE_EPOLL
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20 #include <sys/epoll.h>
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21 #ifndef MAX_EVENTS
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22 #define MAX_EVENTS 10
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23 #endif
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24 #else
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25 #include <sys/select.h>
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26 #endif
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27
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28 #include <lualib.h>
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29 #include <lauxlib.h>
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30
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31 #ifdef USE_EPOLL
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32 #define STATE_MT "util.poll<epoll>"
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33 #else
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34 #define STATE_MT "util.poll<select>"
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35 #endif
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36
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37 #if (LUA_VERSION_NUM == 501)
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38 #define luaL_setmetatable(L, tname) luaL_getmetatable(L, tname); lua_setmetatable(L, -2)
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39 #endif
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40
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41 /*
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42 * Structure to keep state for each type of API
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43 */
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44 typedef struct Lpoll_state {
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45 int processed;
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46 #ifdef USE_EPOLL
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47 int epoll_fd;
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48 struct epoll_event events[MAX_EVENTS];
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49 #else
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50 fd_set wantread;
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51 fd_set wantwrite;
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52 fd_set readable;
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53 fd_set writable;
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54 fd_set all;
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55 fd_set err;
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56 #endif
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57 } Lpoll_state;
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58
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59 /*
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60 * Add an FD to be watched
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61 */
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62 int Ladd(lua_State *L) {
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63 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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64 int fd = luaL_checkinteger(L, 2);
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65
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66 int wantread = lua_toboolean(L, 3);
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67 int wantwrite = lua_toboolean(L, 4);
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68
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69 #ifdef USE_EPOLL
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70 struct epoll_event event;
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71 event.data.fd = fd;
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72 event.events = (wantread ? EPOLLIN : 0) | (wantwrite ? EPOLLOUT : 0);
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73
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74 event.events |= EPOLLERR | EPOLLHUP | EPOLLRDHUP;
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75
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76 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_ADD, fd, &event);
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77
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78 if(ret < 0) {
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79 ret = errno;
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80 lua_pushnil(L);
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81 lua_pushstring(L, strerror(ret));
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82 lua_pushinteger(L, ret);
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83 return 3;
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84 }
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85
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86 lua_pushboolean(L, 1);
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87 return 1;
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88
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89 #else
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90
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91 if(FD_ISSET(fd, &state->all)) {
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92 lua_pushnil(L);
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93 lua_pushstring(L, strerror(EEXIST));
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94 lua_pushinteger(L, EEXIST);
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95 return 3;
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96 }
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97
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98 FD_CLR(fd, &state->readable);
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99 FD_CLR(fd, &state->writable);
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100 FD_CLR(fd, &state->err);
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101
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102 FD_SET(fd, &state->all);
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103
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104 if(wantread) {
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105 FD_SET(fd, &state->wantread);
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106 }
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107 else {
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108 FD_CLR(fd, &state->wantread);
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109 }
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110
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111 if(wantwrite) {
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112 FD_SET(fd, &state->wantwrite);
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113 }
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114 else {
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115 FD_CLR(fd, &state->wantwrite);
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116 }
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117
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118 lua_pushboolean(L, 1);
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119 return 1;
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120 #endif
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121 }
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122
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123 /*
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124 * Set events to watch for, readable and/or writable
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125 */
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126 int Lset(lua_State *L) {
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127 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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128 int fd = luaL_checkinteger(L, 2);
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129
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130 #ifdef USE_EPOLL
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131
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132 int wantread = lua_toboolean(L, 3);
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133 int wantwrite = lua_toboolean(L, 4);
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134
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135 struct epoll_event event;
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136 event.data.fd = fd;
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137 event.events = (wantread ? EPOLLIN : 0) | (wantwrite ? EPOLLOUT : 0);
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138
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139 event.events |= EPOLLERR | EPOLLHUP | EPOLLRDHUP;
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140
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141 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_MOD, fd, &event);
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142
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143 if(ret == 0) {
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144 lua_pushboolean(L, 1);
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145 return 1;
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146 }
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147 else {
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148 ret = errno;
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149 lua_pushnil(L);
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150 lua_pushstring(L, strerror(ret));
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151 lua_pushinteger(L, ret);
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152 return 3;
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153 }
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154
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155 #else
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156
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157 if(!FD_ISSET(fd, &state->all)) {
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158 lua_pushnil(L);
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159 lua_pushstring(L, strerror(ENOENT));
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160 lua_pushinteger(L, ENOENT);
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161 }
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162
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163 if(!lua_isnoneornil(L, 3)) {
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164 if(lua_toboolean(L, 3)) {
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165 FD_SET(fd, &state->wantread);
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166 }
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167 else {
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168 FD_CLR(fd, &state->wantread);
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169 }
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170 }
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171
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172 if(!lua_isnoneornil(L, 4)) {
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173 if(lua_toboolean(L, 4)) {
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174 FD_SET(fd, &state->wantwrite);
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175 }
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176 else {
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177 FD_CLR(fd, &state->wantwrite);
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178 }
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179 }
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180
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181 lua_pushboolean(L, 1);
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182 return 1;
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183 #endif
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184 }
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185
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186 /*
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187 * Remove FDs
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188 */
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189 int Ldel(lua_State *L) {
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190 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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191 int fd = luaL_checkinteger(L, 2);
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192
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193 #ifdef USE_EPOLL
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194
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195 struct epoll_event event;
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196 event.data.fd = fd;
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197
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198 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_DEL, fd, &event);
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199
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200 if(ret == 0) {
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201 lua_pushboolean(L, 1);
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202 return 1;
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203 }
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204 else {
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205 ret = errno;
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206 lua_pushnil(L);
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207 lua_pushstring(L, strerror(ret));
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208 lua_pushinteger(L, ret);
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209 return 3;
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210 }
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211
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212 #else
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213
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214 if(!FD_ISSET(fd, &state->all)) {
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215 lua_pushnil(L);
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216 lua_pushstring(L, strerror(ENOENT));
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217 lua_pushinteger(L, ENOENT);
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218 }
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219
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220 FD_CLR(fd, &state->wantread);
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221 FD_CLR(fd, &state->wantwrite);
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222 FD_CLR(fd, &state->readable);
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223 FD_CLR(fd, &state->writable);
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224 FD_CLR(fd, &state->all);
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225 FD_CLR(fd, &state->err);
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226
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227 lua_pushboolean(L, 1);
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228 return 1;
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229 #endif
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230 }
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231
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232
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233 /*
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234 * Check previously manipulated event state for FDs ready for reading or writing
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235 */
9317
d8496858c809 util.poll: Remove 'inline' from function declaration
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236 int Lpushevent(lua_State *L, struct Lpoll_state *state) {
9313
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237 #ifdef USE_EPOLL
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238
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239 if(state->processed > 0) {
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240 state->processed--;
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241 struct epoll_event event = state->events[state->processed];
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242 lua_pushinteger(L, event.data.fd);
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243 lua_pushboolean(L, event.events & (EPOLLIN | EPOLLHUP | EPOLLRDHUP | EPOLLERR));
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244 lua_pushboolean(L, event.events & EPOLLOUT);
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245 return 3;
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246 }
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247
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248 #else
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249
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250 for(int fd = state->processed + 1; fd < FD_SETSIZE; fd++) {
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251 if(FD_ISSET(fd, &state->readable) || FD_ISSET(fd, &state->writable) || FD_ISSET(fd, &state->err)) {
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252 lua_pushinteger(L, fd);
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253 lua_pushboolean(L, FD_ISSET(fd, &state->readable) | FD_ISSET(fd, &state->err));
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254 lua_pushboolean(L, FD_ISSET(fd, &state->writable));
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255 FD_CLR(fd, &state->readable);
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256 FD_CLR(fd, &state->writable);
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257 FD_CLR(fd, &state->err);
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258 state->processed = fd;
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259 return 3;
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260 }
b95ef295c66d util.poll: Import poll library with epoll and select support
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261 }
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262
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263 #endif
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264 return 0;
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265 }
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266
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parents:
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267 /*
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parents:
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268 * Wait for event
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269 */
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270 int Lwait(lua_State *L) {
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271 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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272
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273 int ret = Lpushevent(L, state);
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diff changeset
274
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parents:
diff changeset
275 if(ret != 0) {
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276 return ret;
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277 }
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278
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279 lua_Number timeout = luaL_checknumber(L, 2);
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280 luaL_argcheck(L, timeout >= 0, 1, "positive number expected");
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281
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282 #ifdef USE_EPOLL
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283 ret = epoll_wait(state->epoll_fd, state->events, MAX_EVENTS, timeout * 1000);
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284 #else
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285 /*
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286 * select(2) mutates the fd_sets passed to it so in order to not
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parents:
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287 * have to recreate it manually every time a copy is made.
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288 */
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parents:
diff changeset
289 memcpy(&state->readable, &state->wantread, sizeof(fd_set));
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diff changeset
290 memcpy(&state->writable, &state->wantwrite, sizeof(fd_set));
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diff changeset
291 memcpy(&state->err, &state->all, sizeof(fd_set));
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292
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
293 struct timeval tv;
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Kim Alvefur <zash@zash.se>
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diff changeset
294 tv.tv_sec = (time_t)timeout;
b95ef295c66d util.poll: Import poll library with epoll and select support
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diff changeset
295 tv.tv_usec = ((suseconds_t)(timeout * 1000000)) % 1000000;
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Kim Alvefur <zash@zash.se>
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296
9437
b202aa1e2d7b util.poll: Fix monitoring of socket exceptions in select mode
Kim Alvefur <zash@zash.se>
parents: 9318
diff changeset
297 ret = select(FD_SETSIZE, &state->readable, &state->writable, &state->err, &tv);
9313
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298 #endif
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diff changeset
299
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
300 if(ret == 0) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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diff changeset
301 lua_pushnil(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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diff changeset
302 lua_pushstring(L, "timeout");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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diff changeset
303 return 2;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
304 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
305 else if(ret < 0) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
306 ret = errno;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
307 lua_pushnil(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
308 lua_pushstring(L, strerror(ret));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
309 lua_pushinteger(L, ret);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
310 return 3;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
311 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
312
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
313 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
314 * Search for the first ready FD and return it
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
315 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
316 #ifdef USE_EPOLL
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Kim Alvefur <zash@zash.se>
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diff changeset
317 state->processed = ret;
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
318 #else
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Kim Alvefur <zash@zash.se>
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diff changeset
319 state->processed = -1;
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Kim Alvefur <zash@zash.se>
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diff changeset
320 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
321 return Lpushevent(L, state);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
322 }
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
323
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
324 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
325 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
326 * Return Epoll FD
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
327 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
328 int Lgetfd(lua_State *L) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
329 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
330 lua_pushinteger(L, state->epoll_fd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
331 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
332 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
333
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
334 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
335 * Close epoll FD
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
336 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
337 int Lgc(lua_State *L) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
338 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
339
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
340 if(close(state->epoll_fd) == 0) {
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
341 state->epoll_fd = -1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
342 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
343 else {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
344 lua_pushstring(L, strerror(errno));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
345 lua_error(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
346 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
347
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
348 return 0;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
349 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
350 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
351
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
352 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
353 * String representation
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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diff changeset
354 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
355 int Ltos(lua_State *L) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
356 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
357 lua_pushfstring(L, "%s: %p", STATE_MT, state);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
358 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
359 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
360
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
361 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
362 * Create a new context
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
363 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
364 int Lnew(lua_State *L) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
365 /* Allocate state */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
366 Lpoll_state *state = lua_newuserdata(L, sizeof(Lpoll_state));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
367 luaL_setmetatable(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
368
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
369 /* Initialize state */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
370 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
371 state->epoll_fd = epoll_create1(0);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
372 state->processed = 0;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
373 #else
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
374 FD_ZERO(&state->wantread);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
375 FD_ZERO(&state->wantwrite);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
376 FD_ZERO(&state->readable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
377 FD_ZERO(&state->writable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
378 state->processed = FD_SETSIZE;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
379 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
380
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
381 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
382 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
383
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
384 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
385 * Open library
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
386 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
387 int luaopen_util_poll(lua_State *L) {
9318
3429006518bf util.poll: Lua 5.1 compat
Kim Alvefur <zash@zash.se>
parents: 9317
diff changeset
388 #if (LUA_VERSION_NUM > 501)
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
389 luaL_checkversion(L);
9318
3429006518bf util.poll: Lua 5.1 compat
Kim Alvefur <zash@zash.se>
parents: 9317
diff changeset
390 #endif
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
391
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
392 luaL_newmetatable(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
393 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
394
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
395 lua_pushliteral(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
396 lua_setfield(L, -2, "__name");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
397
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
398 lua_pushcfunction(L, Ltos);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
399 lua_setfield(L, -2, "__tostring");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
400
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
401 lua_createtable(L, 0, 2);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
402 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
403 lua_pushcfunction(L, Ladd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
404 lua_setfield(L, -2, "add");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
405 lua_pushcfunction(L, Lset);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
406 lua_setfield(L, -2, "set");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
407 lua_pushcfunction(L, Ldel);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
408 lua_setfield(L, -2, "del");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
409 lua_pushcfunction(L, Lwait);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
410 lua_setfield(L, -2, "wait");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
411 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
412 lua_pushcfunction(L, Lgetfd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
413 lua_setfield(L, -2, "getfd");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
414 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
415 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
416 lua_setfield(L, -2, "__index");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
417
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
418 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
419 lua_pushcfunction(L, Lgc);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
420 lua_setfield(L, -2, "__gc");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
421 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
422 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
423
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
424 lua_createtable(L, 0, 1);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
425 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
426 lua_pushcfunction(L, Lnew);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
427 lua_setfield(L, -2, "new");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
428 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
429 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
430 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
431