prosody
850e4ade7a01
util-src/poll.c

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util-src/poll.c @ 13553:850e4ade7a01

net.server_epoll: Make running out of buffer space a fatal error Prevent Bad Things from happening when the buffer gets full. This of course opens up the possibility of intentionally killing connections by sending much stuff, which need to be mitigated with rate limits elsewhere.
author Kim Alvefur <zash@zash.se>
date Sat, 09 Nov 2024 15:42:31 +0100
parent 13347:5fe8a8e16b27
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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) 2017-2022 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 <string.h>
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12 #include <errno.h>
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13
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14 #if defined(__linux__)
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15 #define USE_EPOLL
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16 #define POLL_BACKEND "epoll"
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17 #elif defined(__unix__)
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18 #define USE_POLL
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19 #define POLL_BACKEND "poll"
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20 #else
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21 #define USE_SELECT
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22 #define POLL_BACKEND "select"
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23 #endif
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24
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25 #ifdef USE_EPOLL
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26 #include <unistd.h>
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27 #include <sys/epoll.h>
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28 #ifndef MAX_EVENTS
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29 /* Maximum number of returned events, retrieved into Lpoll_state */
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30 #define MAX_EVENTS 256
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31 #endif
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32 #endif
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33 #ifdef USE_POLL
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34 #include <poll.h>
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35 #ifndef MAX_WATCHED
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36 /* Maximum number of watched sockets, kept in Lpoll_state */
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37 #define MAX_WATCHED 10000
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38 #endif
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39 #endif
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40 #ifdef USE_SELECT
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41 #include <sys/select.h>
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42 #endif
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43
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44 #include <lualib.h>
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45 #include <lauxlib.h>
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46
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47 #define STATE_MT "util.poll<" POLL_BACKEND ">"
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48
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49 #if (LUA_VERSION_NUM < 504)
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50 #define luaL_pushfail lua_pushnil
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51 #endif
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52
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53 /*
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54 * Structure to keep state for each type of API
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55 */
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56 typedef struct Lpoll_state {
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57 int processed;
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58 #ifdef USE_EPOLL
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59 int epoll_fd;
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60 struct epoll_event events[MAX_EVENTS];
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61 #endif
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62 #ifdef USE_POLL
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63 nfds_t count;
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64 struct pollfd events[MAX_WATCHED];
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65 #endif
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66 #ifdef USE_SELECT
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67 fd_set wantread;
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68 fd_set wantwrite;
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69 fd_set readable;
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70 fd_set writable;
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71 fd_set all;
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72 fd_set err;
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73 #endif
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74 } Lpoll_state;
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75
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76 /*
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77 * Add an FD to be watched
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78 */
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79 static int Ladd(lua_State *L) {
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80 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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81 int fd = luaL_checkinteger(L, 2);
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82
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83 int wantread = lua_toboolean(L, 3);
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84 int wantwrite = lua_toboolean(L, 4);
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85
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86 if(fd < 0) {
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87 luaL_pushfail(L);
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88 lua_pushstring(L, strerror(EBADF));
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89 lua_pushinteger(L, EBADF);
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90 return 3;
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91 }
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92
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93 #ifdef USE_EPOLL
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94 struct epoll_event event;
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95 event.data.fd = fd;
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96 event.events = (wantread ? EPOLLIN : 0) | (wantwrite ? EPOLLOUT : 0);
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97
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98 event.events |= EPOLLERR | EPOLLHUP | EPOLLRDHUP;
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99
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100 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_ADD, fd, &event);
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101
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102 if(ret < 0) {
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103 ret = errno;
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104 luaL_pushfail(L);
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105 lua_pushstring(L, strerror(ret));
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106 lua_pushinteger(L, ret);
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107 return 3;
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108 }
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109
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110 lua_pushboolean(L, 1);
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111 return 1;
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112
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113 #endif
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114 #ifdef USE_POLL
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115
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116 for(nfds_t i = 0; i < state->count; i++) {
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117 if(state->events[i].fd == fd) {
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118 luaL_pushfail(L);
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119 lua_pushstring(L, strerror(EEXIST));
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120 lua_pushinteger(L, EEXIST);
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121 return 3;
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122 }
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123 }
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124
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125 if(state->count >= MAX_WATCHED) {
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126 luaL_pushfail(L);
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127 lua_pushstring(L, strerror(EMFILE));
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128 lua_pushinteger(L, EMFILE);
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129 return 3;
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130 }
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131
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132 state->events[state->count].fd = fd;
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133 state->events[state->count].events = (wantread ? POLLIN : 0) | (wantwrite ? POLLOUT : 0);
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134 state->events[state->count].revents = 0;
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135 state->count++;
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136
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137 lua_pushboolean(L, 1);
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138 return 1;
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139 #endif
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140 #ifdef USE_SELECT
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141
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142 if(fd > FD_SETSIZE) {
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143 luaL_pushfail(L);
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144 lua_pushstring(L, strerror(EBADF));
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145 lua_pushinteger(L, EBADF);
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146 return 3;
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147 }
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148
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149 if(FD_ISSET(fd, &state->all)) {
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150 luaL_pushfail(L);
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151 lua_pushstring(L, strerror(EEXIST));
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152 lua_pushinteger(L, EEXIST);
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153 return 3;
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154 }
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155
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156 FD_CLR(fd, &state->readable);
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157 FD_CLR(fd, &state->writable);
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158 FD_CLR(fd, &state->err);
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159
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160 FD_SET(fd, &state->all);
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161
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162 if(wantread) {
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163 FD_SET(fd, &state->wantread);
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164 }
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165 else {
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166 FD_CLR(fd, &state->wantread);
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167 }
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168
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169 if(wantwrite) {
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170 FD_SET(fd, &state->wantwrite);
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171 }
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172 else {
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173 FD_CLR(fd, &state->wantwrite);
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174 }
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175
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176 lua_pushboolean(L, 1);
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177 return 1;
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178 #endif
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179 }
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180
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181 /*
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182 * Set events to watch for, readable and/or writable
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183 */
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184 static int Lset(lua_State *L) {
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185 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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186 int fd = luaL_checkinteger(L, 2);
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187
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188 #ifdef USE_EPOLL
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189
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190 int wantread = lua_toboolean(L, 3);
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191 int wantwrite = lua_toboolean(L, 4);
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192
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193 struct epoll_event event;
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194 event.data.fd = fd;
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195 event.events = (wantread ? EPOLLIN : 0) | (wantwrite ? EPOLLOUT : 0);
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196
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197 event.events |= EPOLLERR | EPOLLHUP | EPOLLRDHUP;
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198
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199 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_MOD, fd, &event);
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200
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201 if(ret == 0) {
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202 lua_pushboolean(L, 1);
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203 return 1;
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204 }
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205 else {
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206 ret = errno;
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207 luaL_pushfail(L);
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208 lua_pushstring(L, strerror(ret));
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209 lua_pushinteger(L, ret);
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210 return 3;
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211 }
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212
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213 #endif
12316
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214 #ifdef USE_POLL
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215 int wantread = lua_toboolean(L, 3);
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216 int wantwrite = lua_toboolean(L, 4);
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217
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218 for(nfds_t i = 0; i < state->count; i++) {
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219 struct pollfd *event = &state->events[i];
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220
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221 if(event->fd == fd) {
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222 event->events = (wantread ? POLLIN : 0) | (wantwrite ? POLLOUT : 0);
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223 lua_pushboolean(L, 1);
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224 return 1;
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225 } else if(event->fd == -1) {
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226 break;
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227 }
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228 }
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229
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230 luaL_pushfail(L);
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231 lua_pushstring(L, strerror(ENOENT));
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232 lua_pushinteger(L, ENOENT);
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233 return 3;
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234 #endif
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235 #ifdef USE_SELECT
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236
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237 if(!FD_ISSET(fd, &state->all)) {
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238 luaL_pushfail(L);
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239 lua_pushstring(L, strerror(ENOENT));
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240 lua_pushinteger(L, ENOENT);
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241 return 3;
9313
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242 }
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243
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244 if(!lua_isnoneornil(L, 3)) {
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245 if(lua_toboolean(L, 3)) {
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246 FD_SET(fd, &state->wantread);
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247 }
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diff changeset
248 else {
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249 FD_CLR(fd, &state->wantread);
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250 }
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251 }
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252
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diff changeset
253 if(!lua_isnoneornil(L, 4)) {
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diff changeset
254 if(lua_toboolean(L, 4)) {
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255 FD_SET(fd, &state->wantwrite);
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diff changeset
256 }
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diff changeset
257 else {
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258 FD_CLR(fd, &state->wantwrite);
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diff changeset
259 }
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260 }
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261
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diff changeset
262 lua_pushboolean(L, 1);
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diff changeset
263 return 1;
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diff changeset
264 #endif
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265 }
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266
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
267 /*
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parents:
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268 * Remove FDs
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diff changeset
269 */
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270 static int Ldel(lua_State *L) {
9313
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271 struct Lpoll_state *state = luaL_checkudata(L, 1, STATE_MT);
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272 int fd = luaL_checkinteger(L, 2);
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273
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274 #ifdef USE_EPOLL
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275
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276 struct epoll_event event;
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diff changeset
277 event.data.fd = fd;
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278
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279 int ret = epoll_ctl(state->epoll_fd, EPOLL_CTL_DEL, fd, &event);
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280
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parents:
diff changeset
281 if(ret == 0) {
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282 lua_pushboolean(L, 1);
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283 return 1;
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284 }
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285 else {
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286 ret = errno;
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287 luaL_pushfail(L);
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288 lua_pushstring(L, strerror(ret));
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289 lua_pushinteger(L, ret);
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290 return 3;
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291 }
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292
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293 #endif
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294 #ifdef USE_POLL
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295
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296 if(state->count == 0) {
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297 luaL_pushfail(L);
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298 lua_pushstring(L, strerror(ENOENT));
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299 lua_pushinteger(L, ENOENT);
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300 return 3;
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301 }
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302
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303 /*
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304 * Move the last item on top of the removed one
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305 */
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306 struct pollfd *last = &state->events[state->count - 1];
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307
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308 for(nfds_t i = 0; i < state->count; i++) {
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309 struct pollfd *event = &state->events[i];
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310
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diff changeset
311 if(event->fd == fd) {
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312 event->fd = last->fd;
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313 event->events = last->events;
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314 event->revents = last->revents;
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315 last->fd = -1;
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316 state->count--;
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317
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318 lua_pushboolean(L, 1);
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319 return 1;
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320 }
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321 }
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322
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diff changeset
323 luaL_pushfail(L);
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324 lua_pushstring(L, strerror(ENOENT));
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325 lua_pushinteger(L, ENOENT);
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326 return 3;
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diff changeset
327 #endif
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328 #ifdef USE_SELECT
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329
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330 if(!FD_ISSET(fd, &state->all)) {
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331 luaL_pushfail(L);
9313
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332 lua_pushstring(L, strerror(ENOENT));
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333 lua_pushinteger(L, ENOENT);
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334 return 3;
9313
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diff changeset
335 }
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diff changeset
336
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diff changeset
337 FD_CLR(fd, &state->wantread);
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diff changeset
338 FD_CLR(fd, &state->wantwrite);
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diff changeset
339 FD_CLR(fd, &state->readable);
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diff changeset
340 FD_CLR(fd, &state->writable);
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diff changeset
341 FD_CLR(fd, &state->all);
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342 FD_CLR(fd, &state->err);
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diff changeset
343
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diff changeset
344 lua_pushboolean(L, 1);
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345 return 1;
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346 #endif
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parents:
diff changeset
347 }
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348
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349
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diff changeset
350 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
351 * Check previously manipulated event state for FDs ready for reading or writing
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diff changeset
352 */
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353 static int Lpushevent(lua_State *L, struct Lpoll_state *state) {
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354 #ifdef USE_EPOLL
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355
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diff changeset
356 if(state->processed > 0) {
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357 state->processed--;
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358 struct epoll_event event = state->events[state->processed];
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359 lua_pushinteger(L, event.data.fd);
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diff changeset
360 lua_pushboolean(L, event.events & (EPOLLIN | EPOLLHUP | EPOLLRDHUP | EPOLLERR));
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361 lua_pushboolean(L, event.events & EPOLLOUT);
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parents:
diff changeset
362 return 3;
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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
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365 #endif
12316
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366 #ifdef USE_POLL
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diff changeset
367
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
368 for(int i = state->processed - 1; i >= 0; i--) {
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
369 struct pollfd *event = &state->events[i];
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
370
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
371 if(event->fd != -1 && event->revents != 0) {
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
372 lua_pushinteger(L, event->fd);
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
373 lua_pushboolean(L, event->revents & (POLLIN | POLLHUP | POLLERR));
6bb2f660f689 util.poll: Add support for the poll() API
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374 lua_pushboolean(L, event->revents & POLLOUT);
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
375 event->revents = 0;
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
376 state->processed = i;
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diff changeset
377 return 3;
6bb2f660f689 util.poll: Add support for the poll() API
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diff changeset
378 }
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
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diff changeset
379 }
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
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diff changeset
380
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
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diff changeset
381 #endif
12314
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diff changeset
382 #ifdef USE_SELECT
9313
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383
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parents:
diff changeset
384 for(int fd = state->processed + 1; fd < FD_SETSIZE; fd++) {
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parents:
diff changeset
385 if(FD_ISSET(fd, &state->readable) || FD_ISSET(fd, &state->writable) || FD_ISSET(fd, &state->err)) {
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
386 lua_pushinteger(L, fd);
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parents:
diff changeset
387 lua_pushboolean(L, FD_ISSET(fd, &state->readable) | FD_ISSET(fd, &state->err));
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parents:
diff changeset
388 lua_pushboolean(L, FD_ISSET(fd, &state->writable));
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
389 FD_CLR(fd, &state->readable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
390 FD_CLR(fd, &state->writable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
391 FD_CLR(fd, &state->err);
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
392 state->processed = fd;
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parents:
diff changeset
393 return 3;
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 }
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 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
398 return 0;
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
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 * Wait for event
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
403 */
9954
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diff changeset
404 static int Lwait(lua_State *L) {
9313
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parents:
diff changeset
405 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
406
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
407 int ret = Lpushevent(L, state);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
408
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
409 if(ret != 0) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
410 return ret;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
411 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
412
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
413 lua_Number timeout = luaL_checknumber(L, 2);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
414 luaL_argcheck(L, timeout >= 0, 1, "positive number expected");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
415
13329
649876680bf0 util.poll: Return early if given zero timeout and no pending events
Kim Alvefur <zash@zash.se>
parents: 12976
diff changeset
416 if(timeout == 0.0) {
649876680bf0 util.poll: Return early if given zero timeout and no pending events
Kim Alvefur <zash@zash.se>
parents: 12976
diff changeset
417 lua_pushnil(L);
649876680bf0 util.poll: Return early if given zero timeout and no pending events
Kim Alvefur <zash@zash.se>
parents: 12976
diff changeset
418 lua_pushstring(L, "timeout");
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Kim Alvefur <zash@zash.se>
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diff changeset
419 return 2;
649876680bf0 util.poll: Return early if given zero timeout and no pending events
Kim Alvefur <zash@zash.se>
parents: 12976
diff changeset
420 }
649876680bf0 util.poll: Return early if given zero timeout and no pending events
Kim Alvefur <zash@zash.se>
parents: 12976
diff changeset
421
9313
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parents:
diff changeset
422 #ifdef USE_EPOLL
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
423 ret = epoll_wait(state->epoll_fd, state->events, MAX_EVENTS, timeout * 1000);
12314
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diff changeset
424 #endif
12316
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diff changeset
425 #ifdef USE_POLL
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
426 ret = poll(state->events, state->count, timeout * 1000);
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
427 #endif
12314
898554323338 util.poll: Restructure to make adding additional system APIs easier
Kim Alvefur <zash@zash.se>
parents: 10921
diff changeset
428 #ifdef USE_SELECT
9313
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 * select(2) mutates the fd_sets passed to it so in order to not
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
431 * have to recreate it manually every time a copy is made.
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
432 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
433 memcpy(&state->readable, &state->wantread, sizeof(fd_set));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
434 memcpy(&state->writable, &state->wantwrite, sizeof(fd_set));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
435 memcpy(&state->err, &state->all, sizeof(fd_set));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
436
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
437 struct timeval tv;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
438 tv.tv_sec = (time_t)timeout;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
439 tv.tv_usec = ((suseconds_t)(timeout * 1000000)) % 1000000;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
440
9437
b202aa1e2d7b util.poll: Fix monitoring of socket exceptions in select mode
Kim Alvefur <zash@zash.se>
parents: 9318
diff changeset
441 ret = select(FD_SETSIZE, &state->readable, &state->writable, &state->err, &tv);
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
442 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
443
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
444 if(ret == 0) {
10921
6eb5d2bb11af util-src: Use the luaL_pushfail API added in Lua 5.4 to highlight all failure conditions
Kim Alvefur <zash@zash.se>
parents: 10096
diff changeset
445 /* Is this an error? */
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
446 lua_pushnil(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
447 lua_pushstring(L, "timeout");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
448 return 2;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
449 }
9508
2055b497b515 net.server_epoll: Special handling of signal interrupts
Kim Alvefur <zash@zash.se>
parents: 9507
diff changeset
450 else if(ret < 0 && errno == EINTR) {
10921
6eb5d2bb11af util-src: Use the luaL_pushfail API added in Lua 5.4 to highlight all failure conditions
Kim Alvefur <zash@zash.se>
parents: 10096
diff changeset
451 /* Is this an error? */
9508
2055b497b515 net.server_epoll: Special handling of signal interrupts
Kim Alvefur <zash@zash.se>
parents: 9507
diff changeset
452 lua_pushnil(L);
2055b497b515 net.server_epoll: Special handling of signal interrupts
Kim Alvefur <zash@zash.se>
parents: 9507
diff changeset
453 lua_pushstring(L, "signal");
2055b497b515 net.server_epoll: Special handling of signal interrupts
Kim Alvefur <zash@zash.se>
parents: 9507
diff changeset
454 return 2;
2055b497b515 net.server_epoll: Special handling of signal interrupts
Kim Alvefur <zash@zash.se>
parents: 9507
diff changeset
455 }
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
456 else if(ret < 0) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
457 ret = errno;
10921
6eb5d2bb11af util-src: Use the luaL_pushfail API added in Lua 5.4 to highlight all failure conditions
Kim Alvefur <zash@zash.se>
parents: 10096
diff changeset
458 luaL_pushfail(L);
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
459 lua_pushstring(L, strerror(ret));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
460 lua_pushinteger(L, ret);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
461 return 3;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
462 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
463
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
464 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
465 * 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
466 */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
467 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
468 state->processed = ret;
12314
898554323338 util.poll: Restructure to make adding additional system APIs easier
Kim Alvefur <zash@zash.se>
parents: 10921
diff changeset
469 #endif
12316
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
470 #ifdef USE_POLL
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
471 state->processed = state->count;
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
472 #endif
12314
898554323338 util.poll: Restructure to make adding additional system APIs easier
Kim Alvefur <zash@zash.se>
parents: 10921
diff changeset
473 #ifdef USE_SELECT
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
474 state->processed = -1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
475 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
476 return Lpushevent(L, state);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
477 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
478
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
479 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
480 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
481 * Return Epoll FD
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
482 */
9954
36280801ddf1 util.poll: Minimize scope of methods
Kim Alvefur <zash@zash.se>
parents: 9508
diff changeset
483 static int Lgetfd(lua_State *L) {
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
484 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
485 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
486 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
487 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
488
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
489 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
490 * Close epoll FD
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
491 */
9954
36280801ddf1 util.poll: Minimize scope of methods
Kim Alvefur <zash@zash.se>
parents: 9508
diff changeset
492 static int Lgc(lua_State *L) {
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
493 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
494
9478
bd178ed0459b util.poll: Fix inverted logic
Kim Alvefur <zash@zash.se>
parents: 9476
diff changeset
495 if(state->epoll_fd == -1) {
9475
9b26a50cdfe3 util.poll: Early return from __gc in case of no valid epoll FD
Kim Alvefur <zash@zash.se>
parents: 9450
diff changeset
496 return 0;
9b26a50cdfe3 util.poll: Early return from __gc in case of no valid epoll FD
Kim Alvefur <zash@zash.se>
parents: 9450
diff changeset
497 }
9b26a50cdfe3 util.poll: Early return from __gc in case of no valid epoll FD
Kim Alvefur <zash@zash.se>
parents: 9450
diff changeset
498
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
499 if(close(state->epoll_fd) == 0) {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
500 state->epoll_fd = -1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
501 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
502 else {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
503 lua_pushstring(L, strerror(errno));
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
504 lua_error(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
505 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
506
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
507 return 0;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
508 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
509 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
510
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
511 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
512 * String representation
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
513 */
9954
36280801ddf1 util.poll: Minimize scope of methods
Kim Alvefur <zash@zash.se>
parents: 9508
diff changeset
514 static int Ltos(lua_State *L) {
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
515 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
516 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
517 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
518 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
519
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
520 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
521 * Create a new context
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
522 */
9954
36280801ddf1 util.poll: Minimize scope of methods
Kim Alvefur <zash@zash.se>
parents: 9508
diff changeset
523 static int Lnew(lua_State *L) {
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
524 /* Allocate state */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
525 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
526 luaL_setmetatable(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
527
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
528 /* Initialize state */
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
529 #ifdef USE_EPOLL
9476
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
530 state->epoll_fd = -1;
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
531 state->processed = 0;
9476
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
532
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
533 int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
534
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
535 if(epoll_fd <= 0) {
10921
6eb5d2bb11af util-src: Use the luaL_pushfail API added in Lua 5.4 to highlight all failure conditions
Kim Alvefur <zash@zash.se>
parents: 10096
diff changeset
536 luaL_pushfail(L);
9476
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
537 lua_pushstring(L, strerror(errno));
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
538 lua_pushinteger(L, errno);
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
539 return 3;
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
540 }
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
541
f3935aa4cc7e util.poll: Handle failed epoll FD creation
Kim Alvefur <zash@zash.se>
parents: 9475
diff changeset
542 state->epoll_fd = epoll_fd;
12314
898554323338 util.poll: Restructure to make adding additional system APIs easier
Kim Alvefur <zash@zash.se>
parents: 10921
diff changeset
543 #endif
12316
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
544 #ifdef USE_POLL
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
545 state->processed = -1;
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
546 state->count = 0;
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
547
13347
5fe8a8e16b27 util.poll: Rename things to clarify poll(2) limits
Kim Alvefur <zash@zash.se>
parents: 13335
diff changeset
548 for(nfds_t i = 0; i < MAX_WATCHED; i++) {
12316
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
549 state->events[i].fd = -1;
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
550 state->events[i].events = 0;
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
551 state->events[i].revents = 0;
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
552 }
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
553
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
554 #endif
12314
898554323338 util.poll: Restructure to make adding additional system APIs easier
Kim Alvefur <zash@zash.se>
parents: 10921
diff changeset
555 #ifdef USE_SELECT
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
556 FD_ZERO(&state->wantread);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
557 FD_ZERO(&state->wantwrite);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
558 FD_ZERO(&state->readable);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
559 FD_ZERO(&state->writable);
9448
352e8b75c1ae util.poll: Zero FD sets watched for errors on creation
Kim Alvefur <zash@zash.se>
parents: 9447
diff changeset
560 FD_ZERO(&state->all);
352e8b75c1ae util.poll: Zero FD sets watched for errors on creation
Kim Alvefur <zash@zash.se>
parents: 9447
diff changeset
561 FD_ZERO(&state->err);
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
562 state->processed = FD_SETSIZE;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
563 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
564
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
565 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
566 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
567
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
568 /*
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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569 * Open library
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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570 */
12976
a187600ec7d6 util: Add compat for prosody module name change to C sources
Kim Alvefur <zash@zash.se>
parents: 12884
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571 int luaopen_prosody_util_poll(lua_State *L) {
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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572 luaL_checkversion(L);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
573
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
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574 luaL_newmetatable(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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575 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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576
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
577 lua_pushliteral(L, STATE_MT);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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578 lua_setfield(L, -2, "__name");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
579
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
580 lua_pushcfunction(L, Ltos);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
581 lua_setfield(L, -2, "__tostring");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
582
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
583 lua_createtable(L, 0, 2);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
584 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
585 lua_pushcfunction(L, Ladd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
586 lua_setfield(L, -2, "add");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
587 lua_pushcfunction(L, Lset);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
588 lua_setfield(L, -2, "set");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
589 lua_pushcfunction(L, Ldel);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
590 lua_setfield(L, -2, "del");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
591 lua_pushcfunction(L, Lwait);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
592 lua_setfield(L, -2, "wait");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
593 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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594 lua_pushcfunction(L, Lgetfd);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
595 lua_setfield(L, -2, "getfd");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
596 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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597 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
598 lua_setfield(L, -2, "__index");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
599
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
600 #ifdef USE_EPOLL
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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601 lua_pushcfunction(L, Lgc);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
602 lua_setfield(L, -2, "__gc");
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
603 #endif
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
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604 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
605
9507
33d21f020b66 net.server_epoll: Ignore ENOENT when deregitering socket
Kim Alvefur <zash@zash.se>
parents: 9506
diff changeset
606 lua_createtable(L, 0, 3);
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
607 {
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
608 lua_pushcfunction(L, Lnew);
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
609 lua_setfield(L, -2, "new");
9506
ae6636052be9 net.server_epoll: Graceful handling of registering already added socket
Kim Alvefur <zash@zash.se>
parents: 9478
diff changeset
610
ae6636052be9 net.server_epoll: Graceful handling of registering already added socket
Kim Alvefur <zash@zash.se>
parents: 9478
diff changeset
611 #define push_errno(named_error) lua_pushinteger(L, named_error);\
ae6636052be9 net.server_epoll: Graceful handling of registering already added socket
Kim Alvefur <zash@zash.se>
parents: 9478
diff changeset
612 lua_setfield(L, -2, #named_error);
ae6636052be9 net.server_epoll: Graceful handling of registering already added socket
Kim Alvefur <zash@zash.se>
parents: 9478
diff changeset
613
ae6636052be9 net.server_epoll: Graceful handling of registering already added socket
Kim Alvefur <zash@zash.se>
parents: 9478
diff changeset
614 push_errno(EEXIST);
12316
6bb2f660f689 util.poll: Add support for the poll() API
Kim Alvefur <zash@zash.se>
parents: 12315
diff changeset
615 push_errno(EMFILE);
9507
33d21f020b66 net.server_epoll: Ignore ENOENT when deregitering socket
Kim Alvefur <zash@zash.se>
parents: 9506
diff changeset
616 push_errno(ENOENT);
9506
ae6636052be9 net.server_epoll: Graceful handling of registering already added socket
Kim Alvefur <zash@zash.se>
parents: 9478
diff changeset
617
12315
cf2086a1bd45 util.poll: Expose API (epoll or select) used
Kim Alvefur <zash@zash.se>
parents: 12314
diff changeset
618 lua_pushliteral(L, POLL_BACKEND);
cf2086a1bd45 util.poll: Expose API (epoll or select) used
Kim Alvefur <zash@zash.se>
parents: 12314
diff changeset
619 lua_setfield(L, -2, "api");
cf2086a1bd45 util.poll: Expose API (epoll or select) used
Kim Alvefur <zash@zash.se>
parents: 12314
diff changeset
620
9313
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
621 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
622 return 1;
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
623 }
b95ef295c66d util.poll: Import poll library with epoll and select support
Kim Alvefur <zash@zash.se>
parents:
diff changeset
624
12976
a187600ec7d6 util: Add compat for prosody module name change to C sources
Kim Alvefur <zash@zash.se>
parents: 12884
diff changeset
625 /* COMPAT */
a187600ec7d6 util: Add compat for prosody module name change to C sources
Kim Alvefur <zash@zash.se>
parents: 12884
diff changeset
626 int luaopen_util_poll(lua_State *L) {
a187600ec7d6 util: Add compat for prosody module name change to C sources
Kim Alvefur <zash@zash.se>
parents: 12884
diff changeset
627 return luaopen_prosody_util_poll(L);
a187600ec7d6 util: Add compat for prosody module name change to C sources
Kim Alvefur <zash@zash.se>
parents: 12884
diff changeset
628 }
a187600ec7d6 util: Add compat for prosody module name change to C sources
Kim Alvefur <zash@zash.se>
parents: 12884
diff changeset
629