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a5d11627ce5d
util-src/poll.c

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util-src/poll.c @ 9388:a5d11627ce5d

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author Kim Alvefur <zash@zash.se>
date Thu, 27 Sep 2018 12:25:46 +0200
parent 9318:3429006518bf
child 9437:b202aa1e2d7b
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9313
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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 }
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96
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97 FD_CLR(fd, &state->readable);
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98 FD_CLR(fd, &state->writable);
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99 FD_CLR(fd, &state->err);
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100
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101 FD_SET(fd, &state->all);
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102
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103 if(wantread) {
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104 FD_SET(fd, &state->wantread);
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105 }
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106 else {
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107 FD_CLR(fd, &state->wantread);
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108 }
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109
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110 if(wantwrite) {
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111 FD_SET(fd, &state->wantwrite);
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112 }
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113 else {
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114 FD_CLR(fd, &state->wantwrite);
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115 }
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116
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117 lua_pushboolean(L, 1);
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118 return 1;
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119 #endif
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120 }
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121
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122 /*
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123 * Set events to watch for, readable and/or writable
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124 */
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125 int Lset(lua_State *L) {
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126 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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127 int fd = luaL_checkinteger(L, 2);
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128
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129 #ifdef USE_EPOLL
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130
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131 int wantread = lua_toboolean(L, 3);
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132 int wantwrite = lua_toboolean(L, 4);
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133
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134 struct epoll_event event;
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135 event.data.fd = fd;
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136 event.events = (wantread ? EPOLLIN : 0) | (wantwrite ? EPOLLOUT : 0);
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137
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138 event.events |= EPOLLERR | EPOLLHUP | EPOLLRDHUP;
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139
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140 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_MOD, fd, &event);
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141
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142 if(ret == 0) {
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143 lua_pushboolean(L, 1);
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144 return 1;
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145 }
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146 else {
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147 ret = errno;
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148 lua_pushnil(L);
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149 lua_pushstring(L, strerror(ret));
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150 lua_pushinteger(L, ret);
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151 return 3;
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152 }
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153
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154 #else
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155
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156 if(!FD_ISSET(fd, &state->all)) {
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157 lua_pushnil(L);
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158 lua_pushstring(L, strerror(ENOENT));
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159 lua_pushinteger(L, ENOENT);
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160 }
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161
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162 if(!lua_isnoneornil(L, 3)) {
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163 if(lua_toboolean(L, 3)) {
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164 FD_SET(fd, &state->wantread);
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165 }
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166 else {
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167 FD_CLR(fd, &state->wantread);
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168 }
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169 }
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170
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171 if(!lua_isnoneornil(L, 4)) {
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172 if(lua_toboolean(L, 4)) {
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173 FD_SET(fd, &state->wantwrite);
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174 }
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175 else {
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176 FD_CLR(fd, &state->wantwrite);
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177 }
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178 }
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179
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180 lua_pushboolean(L, 1);
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181 return 1;
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182 #endif
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183 }
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184
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185 /*
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186 * Remove FDs
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187 */
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188 int Ldel(lua_State *L) {
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189 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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190 int fd = luaL_checkinteger(L, 2);
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191
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192 #ifdef USE_EPOLL
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193
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194 struct epoll_event event;
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195 event.data.fd = fd;
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196
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197 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_DEL, fd, &event);
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198
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199 if(ret == 0) {
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200 lua_pushboolean(L, 1);
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201 return 1;
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202 }
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203 else {
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204 ret = errno;
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205 lua_pushnil(L);
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206 lua_pushstring(L, strerror(ret));
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207 lua_pushinteger(L, ret);
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208 return 3;
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209 }
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210
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211 #else
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212
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213 if(!FD_ISSET(fd, &state->all)) {
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214 lua_pushnil(L);
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215 lua_pushstring(L, strerror(ENOENT));
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216 lua_pushinteger(L, ENOENT);
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217 }
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218
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219 FD_CLR(fd, &state->wantread);
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220 FD_CLR(fd, &state->wantwrite);
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221 FD_CLR(fd, &state->readable);
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222 FD_CLR(fd, &state->writable);
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223 FD_CLR(fd, &state->all);
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224 FD_CLR(fd, &state->err);
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225
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226 lua_pushboolean(L, 1);
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227 return 1;
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228 #endif
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229 }
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230
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231
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232 /*
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233 * Check previously manipulated event state for FDs ready for reading or writing
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234 */
9317
d8496858c809 util.poll: Remove 'inline' from function declaration
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parents: 9313
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235 int Lpushevent(lua_State *L, struct Lpoll_state *state) {
9313
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236 #ifdef USE_EPOLL
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237
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238 if(state->processed > 0) {
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239 state->processed--;
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240 struct epoll_event event = state->events[state->processed];
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241 lua_pushinteger(L, event.data.fd);
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242 lua_pushboolean(L, event.events & (EPOLLIN | EPOLLHUP | EPOLLRDHUP | EPOLLERR));
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243 lua_pushboolean(L, event.events & EPOLLOUT);
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244 return 3;
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245 }
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246
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247 #else
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248
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249 for(int fd = state->processed + 1; fd < FD_SETSIZE; fd++) {
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250 if(FD_ISSET(fd, &state->readable) || FD_ISSET(fd, &state->writable) || FD_ISSET(fd, &state->err)) {
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251 lua_pushinteger(L, fd);
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252 lua_pushboolean(L, FD_ISSET(fd, &state->readable) | FD_ISSET(fd, &state->err));
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253 lua_pushboolean(L, FD_ISSET(fd, &state->writable));
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254 FD_CLR(fd, &state->readable);
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255 FD_CLR(fd, &state->writable);
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256 FD_CLR(fd, &state->err);
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257 state->processed = fd;
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258 return 3;
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259 }
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260 }
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261
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262 #endif
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263 return 0;
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264 }
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265
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266 /*
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
267 * Wait for event
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diff changeset
268 */
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269 int Lwait(lua_State *L) {
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270 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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271
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272 int ret = Lpushevent(L, state);
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diff changeset
273
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parents:
diff changeset
274 if(ret != 0) {
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275 return ret;
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276 }
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277
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278 lua_Number timeout = luaL_checknumber(L, 2);
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279 luaL_argcheck(L, timeout >= 0, 1, "positive number expected");
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280
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diff changeset
281 #ifdef USE_EPOLL
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282 ret = epoll_wait(state->epoll_fd, state->events, MAX_EVENTS, timeout * 1000);
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283 #else
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parents:
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284 /*
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285 * select(2) mutates the fd_sets passed to it so in order to not
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parents:
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286 * have to recreate it manually every time a copy is made.
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287 */
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288 memcpy(&state->readable, &state->wantread, sizeof(fd_set));
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parents:
diff changeset
289 memcpy(&state->writable, &state->wantwrite, sizeof(fd_set));
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290 memcpy(&state->err, &state->all, sizeof(fd_set));
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291
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
292 struct timeval tv;
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Kim Alvefur <zash@zash.se>
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diff changeset
293 tv.tv_sec = (time_t)timeout;
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294 tv.tv_usec = ((suseconds_t)(timeout * 1000000)) % 1000000;
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295
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296 ret = select(FD_SETSIZE, &state->readable, &state->writable, NULL, &tv);
b95ef295c66d util.poll: Import poll library with epoll and select support
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297 #endif
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298
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
299 if(ret == 0) {
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Kim Alvefur <zash@zash.se>
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diff changeset
300 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
301 lua_pushstring(L, "timeout");
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Kim Alvefur <zash@zash.se>
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diff changeset
302 return 2;
b95ef295c66d util.poll: Import poll library with epoll and select support
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parents:
diff changeset
303 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
304 else if(ret < 0) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
305 ret = errno;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
306 lua_pushnil(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
307 lua_pushstring(L, strerror(ret));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
308 lua_pushinteger(L, ret);
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Kim Alvefur <zash@zash.se>
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diff changeset
309 return 3;
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parents:
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310 }
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:
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313 * 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
314 */
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
315 #ifdef USE_EPOLL
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Kim Alvefur <zash@zash.se>
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diff changeset
316 state->processed = ret;
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Kim Alvefur <zash@zash.se>
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diff changeset
317 #else
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Kim Alvefur <zash@zash.se>
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diff changeset
318 state->processed = -1;
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Kim Alvefur <zash@zash.se>
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diff changeset
319 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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320 return Lpushevent(L, state);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
321 }
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
322
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
323 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
324 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
325 * Return Epoll FD
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
326 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
327 int Lgetfd(lua_State *L) {
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Kim Alvefur <zash@zash.se>
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328 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:
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329 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
330 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
331 }
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 * Close epoll FD
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
335 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
336 int Lgc(lua_State *L) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
337 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
338
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
339 if(close(state->epoll_fd) == 0) {
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diff changeset
340 state->epoll_fd = -1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
341 }
b95ef295c66d util.poll: Import poll library with epoll and select support
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parents:
diff changeset
342 else {
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
343 lua_pushstring(L, strerror(errno));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
344 lua_error(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
345 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
346
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
347 return 0;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
348 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
349 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
350
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 * String representation
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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diff changeset
353 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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354 int Ltos(lua_State *L) {
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Kim Alvefur <zash@zash.se>
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diff changeset
355 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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356 lua_pushfstring(L, "%s: %p", STATE_MT, state);
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parents:
diff changeset
357 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
358 }
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 * Create a new context
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
362 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
363 int Lnew(lua_State *L) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
364 /* Allocate state */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
365 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
366 luaL_setmetatable(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
367
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
368 /* Initialize state */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
369 #ifdef USE_EPOLL
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parents:
diff changeset
370 state->epoll_fd = epoll_create1(0);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
371 state->processed = 0;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
372 #else
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
373 FD_ZERO(&state->wantread);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
374 FD_ZERO(&state->wantwrite);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
375 FD_ZERO(&state->readable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
376 FD_ZERO(&state->writable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
377 state->processed = FD_SETSIZE;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
378 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
379
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
380 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
381 }
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 * Open library
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
385 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
386 int luaopen_util_poll(lua_State *L) {
9318
3429006518bf util.poll: Lua 5.1 compat
Kim Alvefur <zash@zash.se>
parents: 9317
diff changeset
387 #if (LUA_VERSION_NUM > 501)
9313
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
388 luaL_checkversion(L);
9318
3429006518bf util.poll: Lua 5.1 compat
Kim Alvefur <zash@zash.se>
parents: 9317
diff changeset
389 #endif
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
390
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
391 luaL_newmetatable(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
392 {
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 lua_pushliteral(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
395 lua_setfield(L, -2, "__name");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
396
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
397 lua_pushcfunction(L, Ltos);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
398 lua_setfield(L, -2, "__tostring");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
399
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
400 lua_createtable(L, 0, 2);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
401 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
402 lua_pushcfunction(L, Ladd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
403 lua_setfield(L, -2, "add");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
404 lua_pushcfunction(L, Lset);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
405 lua_setfield(L, -2, "set");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
406 lua_pushcfunction(L, Ldel);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
407 lua_setfield(L, -2, "del");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
408 lua_pushcfunction(L, Lwait);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
409 lua_setfield(L, -2, "wait");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
410 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
411 lua_pushcfunction(L, Lgetfd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
412 lua_setfield(L, -2, "getfd");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
413 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
414 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
415 lua_setfield(L, -2, "__index");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
416
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
417 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
418 lua_pushcfunction(L, Lgc);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
419 lua_setfield(L, -2, "__gc");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
420 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
421 }
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 lua_createtable(L, 0, 1);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
424 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
425 lua_pushcfunction(L, Lnew);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
426 lua_setfield(L, -2, "new");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
427 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
428 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
429 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
430