prosody
4f0f5b49bb03
net/server_epoll.lua

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net/server_epoll.lua @ 8555:4f0f5b49bb03

vairious: Add annotation when an empty environment is set [luacheck]
author Kim Alvefur <zash@zash.se>
date Wed, 28 Feb 2018 20:06:26 +0100
parent 8552:1fcefc16a55d
child 8776:e7d4344e0fea
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1 -- Prosody IM
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2 -- Copyright (C) 2016 Kim Alvefur
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3 --
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4 -- This project is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6 --
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7
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8 -- server_epoll
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9 -- Server backend based on https://luarocks.org/modules/zash/lua-epoll
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10
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11 local t_sort = table.sort;
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12 local t_insert = table.insert;
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13 local t_remove = table.remove;
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14 local t_concat = table.concat;
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15 local setmetatable = setmetatable;
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16 local tostring = tostring;
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17 local pcall = pcall;
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18 local next = next;
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19 local pairs = pairs;
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20 local log = require "util.logger".init("server_epoll");
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21 local epoll = require "epoll";
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22 local socket = require "socket";
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23 local luasec = require "ssl";
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24 local gettime = require "util.time".now;
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25 local createtable = require "util.table".create;
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26 local _SOCKETINVALID = socket._SOCKETINVALID or -1;
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27
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28 assert(socket.tcp6 and socket.tcp4, "Incompatible LuaSocket version");
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29
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30 local _ENV = nil;
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31 -- luacheck: std none
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32
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33 local default_config = { __index = {
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34 read_timeout = 900;
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35 write_timeout = 7;
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36 tcp_backlog = 128;
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37 accept_retry_interval = 10;
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38 read_retry_delay = 1e-06;
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39 connect_timeout = 20;
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40 handshake_timeout = 60;
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41 max_wait = 86400;
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42 min_wait = 1e-06;
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43 }};
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44 local cfg = default_config.__index;
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45
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46 local fds = createtable(10, 0); -- FD -> conn
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47
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48 -- Timer and scheduling --
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49
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50 local timers = {};
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51
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52 local function noop() end
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53 local function closetimer(t)
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54 t[1] = 0;
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55 t[2] = noop;
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56 end
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57
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58 -- Set to true when timers have changed
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59 local resort_timers = false;
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60
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61 -- Add absolute timer
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62 local function at(time, f)
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63 local timer = { time, f, close = closetimer };
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64 t_insert(timers, timer);
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65 resort_timers = true;
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66 return timer;
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67 end
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68
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69 -- Add relative timer
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70 local function addtimer(timeout, f)
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71 return at(gettime() + timeout, f);
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72 end
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73
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74 -- Run callbacks of expired timers
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75 -- Return time until next timeout
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76 local function runtimers(next_delay, min_wait)
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77 -- Any timers at all?
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78 if not timers[1] then
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79 return next_delay;
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80 end
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81
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82 if resort_timers then
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83 -- Sort earliest timers to the end
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84 t_sort(timers, function (a, b) return a[1] > b[1]; end);
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85 resort_timers = false;
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86 end
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87
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88 -- Iterate from the end and remove completed timers
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89 for i = #timers, 1, -1 do
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90 local timer = timers[i];
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91 local t, f = timer[1], timer[2];
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92 -- Get time for every iteration to increase accuracy
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93 local now = gettime();
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94 if t > now then
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95 -- This timer should not fire yet
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96 local diff = t - now;
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97 if diff < next_delay then
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98 next_delay = diff;
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99 end
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100 break;
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101 end
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102 local new_timeout = f(now);
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103 if new_timeout then
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104 -- Schedule for 'delay' from the time actually scheduled,
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105 -- not from now, in order to prevent timer drift.
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106 timer[1] = t + new_timeout;
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107 resort_timers = true;
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108 else
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109 t_remove(timers, i);
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110 end
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111 end
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112
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113 if resort_timers or next_delay < min_wait then
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114 -- Timers may be added from within a timer callback.
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115 -- Those would not be considered for next_delay,
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116 -- and we might sleep for too long, so instead
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117 -- we return a shorter timeout so we can
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118 -- properly sort all new timers.
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119 next_delay = min_wait;
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120 end
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121
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122 return next_delay;
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123 end
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124
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125 -- Socket handler interface
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126
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127 local interface = {};
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128 local interface_mt = { __index = interface };
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129
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130 function interface_mt:__tostring()
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131 if self.sockname and self.peername then
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132 return ("FD %d (%s, %d, %s, %d)"):format(self:getfd(), self.peername, self.peerport, self.sockname, self.sockport);
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133 elseif self.sockname or self.peername then
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134 return ("FD %d (%s, %d)"):format(self:getfd(), self.sockname or self.peername, self.sockport or self.peerport);
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135 end
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136 return ("%s FD %d"):format(tostring(self.conn), self:getfd());
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137 end
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138
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139 -- Replace the listener and tell the old one
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140 function interface:setlistener(listeners)
7604
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Kim Alvefur <zash@zash.se>
parents: 7603
diff changeset
141 self:on("detach");
7547
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
142 self.listeners = listeners;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
143 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
144
7637
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Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
145 -- Call a listener callback
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
146 function interface:on(what, ...)
8006
be374a5778f3 net.server_epoll: Log if there's a connection without listeners
Kim Alvefur <zash@zash.se>
parents: 7910
diff changeset
147 if not self.listeners then
be374a5778f3 net.server_epoll: Log if there's a connection without listeners
Kim Alvefur <zash@zash.se>
parents: 7910
diff changeset
148 log("error", "%s has no listeners", self);
be374a5778f3 net.server_epoll: Log if there's a connection without listeners
Kim Alvefur <zash@zash.se>
parents: 7910
diff changeset
149 return;
be374a5778f3 net.server_epoll: Log if there's a connection without listeners
Kim Alvefur <zash@zash.se>
parents: 7910
diff changeset
150 end
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
151 local listener = self.listeners["on"..what];
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
152 if not listener then
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
153 -- log("debug", "Missing listener 'on%s'", what); -- uncomment for development and debugging
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
154 return;
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
155 end
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
156 local ok, err = pcall(listener, self, ...);
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
157 if not ok then
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
158 log("error", "Error calling on%s: %s", what, err);
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
159 end
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
160 return err;
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
161 end
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
162
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
163 -- Return the file descriptor number
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
164 function interface:getfd()
7586
846fdbbc62ba net.server_epoll: Return something as FD when no connection exists
Kim Alvefur <zash@zash.se>
parents: 7585
diff changeset
165 if self.conn then
846fdbbc62ba net.server_epoll: Return something as FD when no connection exists
Kim Alvefur <zash@zash.se>
parents: 7585
diff changeset
166 return self.conn:getfd();
846fdbbc62ba net.server_epoll: Return something as FD when no connection exists
Kim Alvefur <zash@zash.se>
parents: 7585
diff changeset
167 end
7737
f93b3083b46b net.server_epoll: Use _SOCKETINVALID from LuaSocket
Kim Alvefur <zash@zash.se>
parents: 7707
diff changeset
168 return _SOCKETINVALID;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
170
8271
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
171 function interface:server()
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
172 return self._server or self;
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
173 end
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
174
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
175 -- Get IP address
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176 function interface:ip()
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
177 return self.peername or self.sockname;
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
178 end
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
179
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
180 -- Get a port number, doesn't matter which
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
181 function interface:port()
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
182 return self.sockport or self.peerport;
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
183 end
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
184
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
185 -- Get local port number
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
186 function interface:clientport()
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
187 return self.sockport;
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
188 end
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
189
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
190 -- Get remote port
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
191 function interface:serverport()
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
192 if self.sockport then
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
193 return self.sockport;
8271
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
194 elseif self._server then
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
195 self._server:port();
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
196 end
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
197 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
198
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
199 -- Return underlying socket
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
200 function interface:socket()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
201 return self.conn;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
202 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203
7910
91db637be237 net.server_epoll: Add method for changing read pattern
Kim Alvefur <zash@zash.se>
parents: 7817
diff changeset
204 function interface:set_mode(new_mode)
91db637be237 net.server_epoll: Add method for changing read pattern
Kim Alvefur <zash@zash.se>
parents: 7817
diff changeset
205 self._pattern = new_mode;
91db637be237 net.server_epoll: Add method for changing read pattern
Kim Alvefur <zash@zash.se>
parents: 7817
diff changeset
206 end
91db637be237 net.server_epoll: Add method for changing read pattern
Kim Alvefur <zash@zash.se>
parents: 7817
diff changeset
207
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
208 function interface:setoption(k, v)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
209 -- LuaSec doesn't expose setoption :(
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
210 if self.conn.setoption then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
211 self.conn:setoption(k, v);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
212 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
213 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
214
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
215 -- Timeout for detecting dead or idle sockets
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
216 function interface:setreadtimeout(t)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
217 if t == false then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218 if self._readtimeout then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 self._readtimeout:close();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
220 self._readtimeout = nil;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
221 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
222 return
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
223 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
224 t = t or cfg.read_timeout;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
225 if self._readtimeout then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
226 self._readtimeout[1] = gettime() + t;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
227 resort_timers = true;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
228 else
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
229 self._readtimeout = addtimer(t, function ()
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
230 if self:on("readtimeout") then
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
231 return cfg.read_timeout;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
232 else
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
233 self:on("disconnect", "read timeout");
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
234 self:destroy();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
235 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
236 end);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
237 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
238 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
239
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
240 -- Timeout for detecting dead sockets
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
241 function interface:setwritetimeout(t)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
242 if t == false then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
243 if self._writetimeout then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
244 self._writetimeout:close();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
245 self._writetimeout = nil;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
246 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
247 return
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
248 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
249 t = t or cfg.write_timeout;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
250 if self._writetimeout then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
251 self._writetimeout[1] = gettime() + t;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
252 resort_timers = true;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
253 else
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
254 self._writetimeout = addtimer(t, function ()
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
255 self:on("disconnect", "write timeout");
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
256 self:destroy();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
257 end);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
258 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
259 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
260
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
261 -- lua-epoll flag for currently requested poll state
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
262 function interface:flags()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
263 if self._wantread then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
264 if self._wantwrite then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
265 return "rw";
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
266 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
267 return "r";
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
268 elseif self._wantwrite then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
269 return "w";
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
270 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
271 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
272
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
273 -- Add or remove sockets or modify epoll flags
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
274 function interface:setflags(r, w)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
275 if r ~= nil then self._wantread = r; end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
276 if w ~= nil then self._wantwrite = w; end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
277 local flags = self:flags();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
278 local currentflags = self._flags;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
279 if flags == currentflags then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
280 return true;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
281 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
282 local fd = self:getfd();
7602
a4d5eec36a17 net.server_epoll: Prevent invalid FDs from being added to epoll
Kim Alvefur <zash@zash.se>
parents: 7601
diff changeset
283 if fd < 0 then
a4d5eec36a17 net.server_epoll: Prevent invalid FDs from being added to epoll
Kim Alvefur <zash@zash.se>
parents: 7601
diff changeset
284 self._wantread, self._wantwrite = nil, nil;
a4d5eec36a17 net.server_epoll: Prevent invalid FDs from being added to epoll
Kim Alvefur <zash@zash.se>
parents: 7601
diff changeset
285 return nil, "invalid fd";
a4d5eec36a17 net.server_epoll: Prevent invalid FDs from being added to epoll
Kim Alvefur <zash@zash.se>
parents: 7601
diff changeset
286 end
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
287 local op = "mod";
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
288 if not flags then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
289 op = "del";
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
290 elseif not currentflags then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
291 op = "add";
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
292 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
293 local ok, err = epoll.ctl(op, fd, flags);
7587
ff81a34bffb0 net.server_epoll: Comment some overly verbose logging
Kim Alvefur <zash@zash.se>
parents: 7586
diff changeset
294 -- log("debug", "epoll_ctl(%q, %d, %q) -> %s" .. (err and ", %q" or ""),
ff81a34bffb0 net.server_epoll: Comment some overly verbose logging
Kim Alvefur <zash@zash.se>
parents: 7586
diff changeset
295 -- op, fd, flags or "", tostring(ok), err);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
296 if not ok then return ok, err end
7625
6afafd6d4ef0 net.server_epoll: Move management of fd registry to :setflags
Kim Alvefur <zash@zash.se>
parents: 7624
diff changeset
297 if op == "add" then
6afafd6d4ef0 net.server_epoll: Move management of fd registry to :setflags
Kim Alvefur <zash@zash.se>
parents: 7624
diff changeset
298 fds[fd] = self;
6afafd6d4ef0 net.server_epoll: Move management of fd registry to :setflags
Kim Alvefur <zash@zash.se>
parents: 7624
diff changeset
299 elseif op == "del" then
6afafd6d4ef0 net.server_epoll: Move management of fd registry to :setflags
Kim Alvefur <zash@zash.se>
parents: 7624
diff changeset
300 fds[fd] = nil;
6afafd6d4ef0 net.server_epoll: Move management of fd registry to :setflags
Kim Alvefur <zash@zash.se>
parents: 7624
diff changeset
301 end
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
302 self._flags = flags;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
303 return true;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
304 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
305
7573
0f0a6febbc5a net.server_epoll: Add some comments
Kim Alvefur <zash@zash.se>
parents: 7564
diff changeset
306 -- Called when socket is readable
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
307 function interface:onreadable()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
308 local data, err, partial = self.conn:receive(self._pattern);
7687
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
309 if data then
8540
ba9fd886b34d net.server_epoll: Call onconnect listener on first successful read or write
Kim Alvefur <zash@zash.se>
parents: 8507
diff changeset
310 self:onconnect();
7687
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
311 self:on("incoming", data);
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
312 else
8540
ba9fd886b34d net.server_epoll: Call onconnect listener on first successful read or write
Kim Alvefur <zash@zash.se>
parents: 8507
diff changeset
313 if partial and partial ~= "" then
ba9fd886b34d net.server_epoll: Call onconnect listener on first successful read or write
Kim Alvefur <zash@zash.se>
parents: 8507
diff changeset
314 self:onconnect();
7687
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
315 self:on("incoming", partial, err);
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
316 end
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
317 if err == "wantread" then
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
318 self:setflags(true, nil);
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
319 elseif err == "wantwrite" then
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
320 self:setflags(nil, true);
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
321 elseif err ~= "timeout" then
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
322 self:on("disconnect", err);
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
323 self:destroy()
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
324 return;
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
325 end
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
326 end
7691
a5ad858f3a93 net.server_epoll: Check that connection still exists after callback, fixes traceback when closed
Kim Alvefur <zash@zash.se>
parents: 7687
diff changeset
327 if not self.conn then return; end
7606
f40f1d9b7872 net.server_epoll: Set timers before calling onincoming, fixes traceback if connection is closed before onincoming returns
Kim Alvefur <zash@zash.se>
parents: 7604
diff changeset
328 if self.conn:dirty() then
f40f1d9b7872 net.server_epoll: Set timers before calling onincoming, fixes traceback if connection is closed before onincoming returns
Kim Alvefur <zash@zash.se>
parents: 7604
diff changeset
329 self:setreadtimeout(false);
f40f1d9b7872 net.server_epoll: Set timers before calling onincoming, fixes traceback if connection is closed before onincoming returns
Kim Alvefur <zash@zash.se>
parents: 7604
diff changeset
330 self:pausefor(cfg.read_retry_delay);
f40f1d9b7872 net.server_epoll: Set timers before calling onincoming, fixes traceback if connection is closed before onincoming returns
Kim Alvefur <zash@zash.se>
parents: 7604
diff changeset
331 else
f40f1d9b7872 net.server_epoll: Set timers before calling onincoming, fixes traceback if connection is closed before onincoming returns
Kim Alvefur <zash@zash.se>
parents: 7604
diff changeset
332 self:setreadtimeout();
f40f1d9b7872 net.server_epoll: Set timers before calling onincoming, fixes traceback if connection is closed before onincoming returns
Kim Alvefur <zash@zash.se>
parents: 7604
diff changeset
333 end
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
334 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
335
7573
0f0a6febbc5a net.server_epoll: Add some comments
Kim Alvefur <zash@zash.se>
parents: 7564
diff changeset
336 -- Called when socket is writable
8542
8c39ec8e6018 net.server_epoll: Spelling writeable -> writable
Kim Alvefur <zash@zash.se>
parents: 8541
diff changeset
337 function interface:onwritable()
8552
1fcefc16a55d server_epoll: Onconnect should happen before first attempt to write to socket
Kim Alvefur <zash@zash.se>
parents: 8542
diff changeset
338 self:onconnect();
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
339 local buffer = self.writebuffer;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
340 local data = t_concat(buffer);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
341 local ok, err, partial = self.conn:send(data);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
342 if ok then
8541
8186114329d6 net.server_epoll: Remove special casing for having sent an empty write buffer because the wantwrite flag must be unset regardless
Kim Alvefur <zash@zash.se>
parents: 8540
diff changeset
343 self:setflags(nil, false);
8186114329d6 net.server_epoll: Remove special casing for having sent an empty write buffer because the wantwrite flag must be unset regardless
Kim Alvefur <zash@zash.se>
parents: 8540
diff changeset
344 for i = #buffer, 1, -1 do
8186114329d6 net.server_epoll: Remove special casing for having sent an empty write buffer because the wantwrite flag must be unset regardless
Kim Alvefur <zash@zash.se>
parents: 8540
diff changeset
345 buffer[i] = nil;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
346 end
8541
8186114329d6 net.server_epoll: Remove special casing for having sent an empty write buffer because the wantwrite flag must be unset regardless
Kim Alvefur <zash@zash.se>
parents: 8540
diff changeset
347 self:setwritetimeout(false);
8186114329d6 net.server_epoll: Remove special casing for having sent an empty write buffer because the wantwrite flag must be unset regardless
Kim Alvefur <zash@zash.se>
parents: 8540
diff changeset
348 self:ondrain(); -- Be aware of writes in ondrain
7589
125e4f2e0b65 net.server_epoll: Return early on successful write
Kim Alvefur <zash@zash.se>
parents: 7588
diff changeset
349 return;
8540
ba9fd886b34d net.server_epoll: Call onconnect listener on first successful read or write
Kim Alvefur <zash@zash.se>
parents: 8507
diff changeset
350 elseif partial then
7591
138f16eb39fb net.server_epoll: Improve syntax
Kim Alvefur <zash@zash.se>
parents: 7590
diff changeset
351 buffer[1] = data:sub(partial+1);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
352 for i = #buffer, 2, -1 do
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
353 buffer[i] = nil;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
354 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
355 self:setwritetimeout();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
356 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
357 if err == "wantwrite" or err == "timeout" then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
358 self:setflags(nil, true);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
359 elseif err == "wantread" then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
360 self:setflags(true, nil);
7687
ae24deae6488 net.server_epoll: Separate ok from err branch more
Kim Alvefur <zash@zash.se>
parents: 7658
diff changeset
361 elseif err ~= "timeout" then
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
362 self:on("disconnect", err);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
363 self:destroy();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
364 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
365 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
366
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
367 -- The write buffer has been successfully emptied
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
368 function interface:ondrain()
8008
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
369 return self:on("drain");
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
370 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
371
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
372 -- Add data to write buffer and set flag for wanting to write
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
373 function interface:write(data)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
374 local buffer = self.writebuffer;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
375 if buffer then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
376 t_insert(buffer, data);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
377 else
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
378 self.writebuffer = { data };
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
379 end
7550
8c2bc1b6d84a net.server_epoll: Remove last traces of code for bypassing buffering on writable sockets
Kim Alvefur <zash@zash.se>
parents: 7547
diff changeset
380 self:setwritetimeout();
8c2bc1b6d84a net.server_epoll: Remove last traces of code for bypassing buffering on writable sockets
Kim Alvefur <zash@zash.se>
parents: 7547
diff changeset
381 self:setflags(nil, true);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
382 return #data;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
383 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
384 interface.send = interface.write;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
385
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
386 -- Close, possibly after writing is done
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
387 function interface:close()
8007
67f8954875a4 net.server_epoll: Check write buffer for remaining data to write when closing
Kim Alvefur <zash@zash.se>
parents: 8006
diff changeset
388 if self.writebuffer and self.writebuffer[1] then
7593
0266434d7df1 net.server_epoll: Prevent further writing after closing a socket
Kim Alvefur <zash@zash.se>
parents: 7592
diff changeset
389 self:setflags(false, true); -- Flush final buffer contents
0266434d7df1 net.server_epoll: Prevent further writing after closing a socket
Kim Alvefur <zash@zash.se>
parents: 7592
diff changeset
390 self.write, self.send = noop, noop; -- No more writing
7555
f3abb5f891eb net.server_epoll: Some logging when closing a connection
Kim Alvefur <zash@zash.se>
parents: 7554
diff changeset
391 log("debug", "Close %s after writing", tostring(self));
8008
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
392 self.ondrain = interface.close;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
393 else
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
394 log("debug", "Close %s now", tostring(self));
7593
0266434d7df1 net.server_epoll: Prevent further writing after closing a socket
Kim Alvefur <zash@zash.se>
parents: 7592
diff changeset
395 self.write, self.send = noop, noop;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
396 self.close = noop;
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
397 self:on("disconnect");
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
398 self:destroy();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
399 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
400 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
401
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
402 function interface:destroy()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
403 self:setflags(false, false);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
404 self:setwritetimeout(false);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
405 self:setreadtimeout(false);
7594
5e884501a9ac net.server_epoll: Prevent anything from happening to destroyed sockets
Kim Alvefur <zash@zash.se>
parents: 7593
diff changeset
406 self.onreadable = noop;
8542
8c39ec8e6018 net.server_epoll: Spelling writeable -> writable
Kim Alvefur <zash@zash.se>
parents: 8541
diff changeset
407 self.onwritable = noop;
7594
5e884501a9ac net.server_epoll: Prevent anything from happening to destroyed sockets
Kim Alvefur <zash@zash.se>
parents: 7593
diff changeset
408 self.destroy = noop;
5e884501a9ac net.server_epoll: Prevent anything from happening to destroyed sockets
Kim Alvefur <zash@zash.se>
parents: 7593
diff changeset
409 self.close = noop;
5e884501a9ac net.server_epoll: Prevent anything from happening to destroyed sockets
Kim Alvefur <zash@zash.se>
parents: 7593
diff changeset
410 self.on = noop;
5e884501a9ac net.server_epoll: Prevent anything from happening to destroyed sockets
Kim Alvefur <zash@zash.se>
parents: 7593
diff changeset
411 self.conn:close();
5e884501a9ac net.server_epoll: Prevent anything from happening to destroyed sockets
Kim Alvefur <zash@zash.se>
parents: 7593
diff changeset
412 self.conn = nil;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
413 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
414
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
415 function interface:ssl()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
416 return self._tls;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
417 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
418
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
419 function interface:starttls(ctx)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
420 if ctx then self.tls = ctx; end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
421 if self.writebuffer and self.writebuffer[1] then
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
422 log("debug", "Start TLS on %s after write", tostring(self));
8008
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
423 self.ondrain = interface.starttls;
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
424 self.starttls = false;
7603
4e2b019ff176 net.server_epoll: Make sure wantwrite is set when starting TLS
Kim Alvefur <zash@zash.se>
parents: 7602
diff changeset
425 self:setflags(nil, true); -- make sure wantwrite is set
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
426 else
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
427 log("debug", "Start TLS on %s now", tostring(self));
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
428 self:setflags(false, false);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
429 local conn, err = luasec.wrap(self.conn, ctx or self.tls);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
430 if not conn then
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
431 self:on("disconnect", err);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
432 self:destroy();
7595
166b2e0766a4 net.server_epoll: Return status from starttls method
Kim Alvefur <zash@zash.se>
parents: 7594
diff changeset
433 return conn, err;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
434 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
435 conn:settimeout(0);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
436 self.conn = conn;
8008
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
437 self.ondrain = nil;
8542
8c39ec8e6018 net.server_epoll: Spelling writeable -> writable
Kim Alvefur <zash@zash.se>
parents: 8541
diff changeset
438 self.onwritable = interface.tlshandskake;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
439 self.onreadable = interface.tlshandskake;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
440 self:setflags(true, true);
7598
335b5ce06062 net.server_epoll: TLS handshake timeout
Kim Alvefur <zash@zash.se>
parents: 7597
diff changeset
441 self:setwritetimeout(cfg.handshake_timeout);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
442 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
443 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
444
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
445 function interface:tlshandskake()
7598
335b5ce06062 net.server_epoll: TLS handshake timeout
Kim Alvefur <zash@zash.se>
parents: 7597
diff changeset
446 self:setwritetimeout(false);
335b5ce06062 net.server_epoll: TLS handshake timeout
Kim Alvefur <zash@zash.se>
parents: 7597
diff changeset
447 self:setreadtimeout(false);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
448 local ok, err = self.conn:dohandshake();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
449 if ok then
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
450 log("debug", "TLS handshake on %s complete", tostring(self));
8542
8c39ec8e6018 net.server_epoll: Spelling writeable -> writable
Kim Alvefur <zash@zash.se>
parents: 8541
diff changeset
451 self.onwritable = nil;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
452 self.onreadable = nil;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
453 self._tls = true;
8008
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
454 self:on("status", "ssl-handshake-complete");
62ed3795be13 net.server_epoll: Attempt to simplify state control
Kim Alvefur <zash@zash.se>
parents: 8007
diff changeset
455 self:init();
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
456 elseif err == "wantread" then
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
457 log("debug", "TLS handshake on %s to wait until readable", tostring(self));
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
458 self:setflags(true, false);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
459 self:setreadtimeout(cfg.handshake_timeout);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
460 elseif err == "wantwrite" then
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
461 log("debug", "TLS handshake on %s to wait until writable", tostring(self));
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
462 self:setflags(false, true);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
463 self:setwritetimeout(cfg.handshake_timeout);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
464 else
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
465 log("debug", "TLS handshake error on %s: %s", tostring(self), err);
7583
0498daffa6f0 net.server_epoll: Call callbacks through common method in protected mode
Kim Alvefur <zash@zash.se>
parents: 7574
diff changeset
466 self:on("disconnect", err);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
467 self:destroy();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
468 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
469 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
470
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
471 local function wrapsocket(client, server, pattern, listeners, tls) -- luasocket object -> interface object
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
472 client:settimeout(0);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
473 local conn = setmetatable({
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
474 conn = client;
8271
c09deab9989e net.server_epoll: Add interface:server() method to match server_event (fixes c2s:show traceback in telnet console)
Kim Alvefur <zash@zash.se>
parents: 8091
diff changeset
475 _server = server;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
476 created = gettime();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
477 listeners = listeners;
7811
24f99d11b792 net.server_epoll: Fix traceback if wrapclient called without a pattern or parent server
Kim Alvefur <zash@zash.se>
parents: 7800
diff changeset
478 _pattern = pattern or (server and server._pattern);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
479 writebuffer = {};
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
480 tls = tls;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
481 }, interface_mt);
7591
138f16eb39fb net.server_epoll: Improve syntax
Kim Alvefur <zash@zash.se>
parents: 7590
diff changeset
482
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
483 if client.getpeername then
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
484 conn.peername, conn.peerport = client:getpeername();
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
485 end
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
486 if client.getsockname then
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
487 conn.sockname, conn.sockport = client:getsockname();
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
488 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
489 return conn;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
490 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
491
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
492 -- A server interface has new incoming connections waiting
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
493 -- This replaces the onreadable callback
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
494 function interface:onacceptable()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
495 local conn, err = self.conn:accept();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
496 if not conn then
7574
97b8506118a9 net.server_epoll: Fix missing quotes in logging call
Kim Alvefur <zash@zash.se>
parents: 7573
diff changeset
497 log("debug", "Error accepting new client: %s, server will be paused for %ds", err, cfg.accept_retry_interval);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
498 self:pausefor(cfg.accept_retry_interval);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
499 return;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
500 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
501 local client = wrapsocket(conn, self, nil, self.listeners, self.tls);
7592
10d2f008321d net.server_epoll: Additional logging of connects and TLS
Kim Alvefur <zash@zash.se>
parents: 7591
diff changeset
502 log("debug", "New connection %s", tostring(client));
7597
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
503 client:init();
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
504 end
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
505
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
506 -- Initialization
7597
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
507 function interface:init()
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
508 if self.tls and not self._tls then
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
509 return self:starttls();
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
510 else
7626
e56343d50293 net.server_epoll: Tailcalls
Kim Alvefur <zash@zash.se>
parents: 7625
diff changeset
511 self:setwritetimeout();
8506
174fd716c9fa server_epoll: Rework how socket readyness is detected
Kim Alvefur <zash@zash.se>
parents: 8271
diff changeset
512 return self:setflags(true, true);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
513 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
514 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
515
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
516 function interface:pause()
7626
e56343d50293 net.server_epoll: Tailcalls
Kim Alvefur <zash@zash.se>
parents: 7625
diff changeset
517 return self:setflags(false);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
518 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
519
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
520 function interface:resume()
7626
e56343d50293 net.server_epoll: Tailcalls
Kim Alvefur <zash@zash.se>
parents: 7625
diff changeset
521 return self:setflags(true);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
522 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
523
7624
23fb3a084956 net.server_epoll: Comments
Kim Alvefur <zash@zash.se>
parents: 7623
diff changeset
524 -- Pause connection for some time
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
525 function interface:pausefor(t)
7559
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
526 if self._pausefor then
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
527 self._pausefor:close();
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
528 end
7559
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
529 if t == false then return; end
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
530 self:setflags(false);
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
531 self._pausefor = addtimer(t, function ()
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
532 self._pausefor = nil;
7707
7bb1cc7278b6 net.server_epoll: Make sure socket exists before checking if there is buffered data in it
Kim Alvefur <zash@zash.se>
parents: 7691
diff changeset
533 if self.conn and self.conn:dirty() then
7560
785fa1138293 net.server_epoll: Continue reading after a slight delay if there is buffered data after a read
Kim Alvefur <zash@zash.se>
parents: 7559
diff changeset
534 self:onreadable();
785fa1138293 net.server_epoll: Continue reading after a slight delay if there is buffered data after a read
Kim Alvefur <zash@zash.se>
parents: 7559
diff changeset
535 end
7628
7f2159eac697 net.server_epoll: Fix timer returning boolean
Kim Alvefur <zash@zash.se>
parents: 7627
diff changeset
536 self:setflags(true);
7559
b1b27dedf4cf net.server_epoll: Replace any previous pausefor timer
Kim Alvefur <zash@zash.se>
parents: 7558
diff changeset
537 end);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
538 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
539
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
540 -- Connected!
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
541 function interface:onconnect()
8540
ba9fd886b34d net.server_epoll: Call onconnect listener on first successful read or write
Kim Alvefur <zash@zash.se>
parents: 8507
diff changeset
542 self.onconnect = noop;
ba9fd886b34d net.server_epoll: Call onconnect listener on first successful read or write
Kim Alvefur <zash@zash.se>
parents: 8507
diff changeset
543 self:on("connect");
8506
174fd716c9fa server_epoll: Rework how socket readyness is detected
Kim Alvefur <zash@zash.se>
parents: 8271
diff changeset
544 end
174fd716c9fa server_epoll: Rework how socket readyness is detected
Kim Alvefur <zash@zash.se>
parents: 8271
diff changeset
545
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
546 local function addserver(addr, port, listeners, pattern, tls)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
547 local conn, err = socket.bind(addr, port, cfg.tcp_backlog);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
548 if not conn then return conn, err; end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
549 conn:settimeout(0);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
550 local server = setmetatable({
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
551 conn = conn;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
552 created = gettime();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
553 listeners = listeners;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
554 _pattern = pattern;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
555 onreadable = interface.onacceptable;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
556 tls = tls;
7584
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
557 sockname = addr;
98ee3ed105cf net.server_epoll: Collect and expose local and remote address and ports
Kim Alvefur <zash@zash.se>
parents: 7583
diff changeset
558 sockport = port;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
559 }, interface_mt);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
560 server:setflags(true, false);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
561 return server;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
562 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
563
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
564 -- COMPAT
7551
838212918f11 net.server_epoll: Rename arguments and varibles for consistensy
Kim Alvefur <zash@zash.se>
parents: 7550
diff changeset
565 local function wrapclient(conn, addr, port, listeners, pattern, tls)
7597
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
566 local client = wrapsocket(conn, nil, pattern, listeners, tls);
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
567 if not client.peername then
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
568 client.peername, client.peerport = addr, port;
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
569 end
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
570 client:init();
7551
838212918f11 net.server_epoll: Rename arguments and varibles for consistensy
Kim Alvefur <zash@zash.se>
parents: 7550
diff changeset
571 return client;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
572 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
573
7800
dadf9ba290c5 server_epoll: Add some comments describing some functions
Kim Alvefur <zash@zash.se>
parents: 7799
diff changeset
574 -- New outgoing TCP connection
7553
4f3e4a092348 net.server_epoll: Make addclient use wrapclient
Kim Alvefur <zash@zash.se>
parents: 7552
diff changeset
575 local function addclient(addr, port, listeners, pattern, tls)
7596
2c4ba55b616c net.server_epoll: Connect async in addclient
Kim Alvefur <zash@zash.se>
parents: 7595
diff changeset
576 local conn, err = socket.tcp();
7553
4f3e4a092348 net.server_epoll: Make addclient use wrapclient
Kim Alvefur <zash@zash.se>
parents: 7552
diff changeset
577 if not conn then return conn, err; end
4f3e4a092348 net.server_epoll: Make addclient use wrapclient
Kim Alvefur <zash@zash.se>
parents: 7552
diff changeset
578 conn:settimeout(0);
7596
2c4ba55b616c net.server_epoll: Connect async in addclient
Kim Alvefur <zash@zash.se>
parents: 7595
diff changeset
579 conn:connect(addr, port);
7597
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
580 local client = wrapsocket(conn, nil, pattern, listeners, tls)
cd34aa6b1632 net.server_epoll: Refactor to use common initialization
Kim Alvefur <zash@zash.se>
parents: 7596
diff changeset
581 client:init();
7556
1f777b38b66c net.server_epoll: Make addclient conform to API (expected by net.http.request)
Kim Alvefur <zash@zash.se>
parents: 7555
diff changeset
582 return client, conn;
7553
4f3e4a092348 net.server_epoll: Make addclient use wrapclient
Kim Alvefur <zash@zash.se>
parents: 7552
diff changeset
583 end
4f3e4a092348 net.server_epoll: Make addclient use wrapclient
Kim Alvefur <zash@zash.se>
parents: 7552
diff changeset
584
7800
dadf9ba290c5 server_epoll: Add some comments describing some functions
Kim Alvefur <zash@zash.se>
parents: 7799
diff changeset
585 -- Dump all data from one connection into another
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
586 local function link(from, to)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
587 from.listeners = setmetatable({
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
588 onincoming = function (_, data)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
589 from:pause();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
590 to:write(data);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
591 end,
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
592 }, {__index=from.listeners});
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
593 to.listeners = setmetatable({
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
594 ondrain = function ()
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
595 from:resume();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
596 end,
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
597 }, {__index=to.listeners});
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
598 from:setflags(true, nil);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
599 to:setflags(nil, true);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
600 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
601
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
602 -- XXX What uses this?
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
603 -- net.adns
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
604 function interface:set_send(new_send)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
605 self.send = new_send;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
606 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
607
7800
dadf9ba290c5 server_epoll: Add some comments describing some functions
Kim Alvefur <zash@zash.se>
parents: 7799
diff changeset
608 -- Close all connections and servers
7794
424bbbeb9257 server_epoll: Add closeall() method for closing all clients and servers
Kim Alvefur <zash@zash.se>
parents: 7737
diff changeset
609 local function closeall()
7799
93643a61858a server_epoll: Ignore unused loop variable [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7797
diff changeset
610 for fd, conn in pairs(fds) do -- luacheck: ignore 213/fd
7794
424bbbeb9257 server_epoll: Add closeall() method for closing all clients and servers
Kim Alvefur <zash@zash.se>
parents: 7737
diff changeset
611 conn:close();
424bbbeb9257 server_epoll: Add closeall() method for closing all clients and servers
Kim Alvefur <zash@zash.se>
parents: 7737
diff changeset
612 end
424bbbeb9257 server_epoll: Add closeall() method for closing all clients and servers
Kim Alvefur <zash@zash.se>
parents: 7737
diff changeset
613 end
424bbbeb9257 server_epoll: Add closeall() method for closing all clients and servers
Kim Alvefur <zash@zash.se>
parents: 7737
diff changeset
614
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
615 local quitting = nil;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
616
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
617 -- Signal main loop about shutdown via above upvalue
7796
12609aee3b3b server_epoll: Handle the argument to setquitting like server_select
Kim Alvefur <zash@zash.se>
parents: 7795
diff changeset
618 local function setquitting(quit)
12609aee3b3b server_epoll: Handle the argument to setquitting like server_select
Kim Alvefur <zash@zash.se>
parents: 7795
diff changeset
619 if quit then
12609aee3b3b server_epoll: Handle the argument to setquitting like server_select
Kim Alvefur <zash@zash.se>
parents: 7795
diff changeset
620 quitting = "quitting";
7797
d0c32d86724f server_epoll: Flush and close all connections before quitting mainloop so no data is lost in buffers
Kim Alvefur <zash@zash.se>
parents: 7796
diff changeset
621 closeall();
7796
12609aee3b3b server_epoll: Handle the argument to setquitting like server_select
Kim Alvefur <zash@zash.se>
parents: 7795
diff changeset
622 else
12609aee3b3b server_epoll: Handle the argument to setquitting like server_select
Kim Alvefur <zash@zash.se>
parents: 7795
diff changeset
623 quitting = nil;
12609aee3b3b server_epoll: Handle the argument to setquitting like server_select
Kim Alvefur <zash@zash.se>
parents: 7795
diff changeset
624 end
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
625 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
626
7637
cccea9136b2d net.server_epoll: More comments
Kim Alvefur <zash@zash.se>
parents: 7630
diff changeset
627 -- Main loop
7795
03081bd5c5bb net.server_epoll: Add the 'once' argument to loop for parity with server_select
Kim Alvefur <zash@zash.se>
parents: 7794
diff changeset
628 local function loop(once)
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
629 repeat
7658
e14a124c4d73 net.server_epoll: Make minimum poll wait time configurable
Kim Alvefur <zash@zash.se>
parents: 7657
diff changeset
630 local t = runtimers(cfg.max_wait, cfg.min_wait);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
631 local fd, r, w = epoll.wait(t);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
632 if fd then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
633 local conn = fds[fd];
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
634 if conn then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
635 if r then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
636 conn:onreadable();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
637 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
638 if w then
8542
8c39ec8e6018 net.server_epoll: Spelling writeable -> writable
Kim Alvefur <zash@zash.se>
parents: 8541
diff changeset
639 conn:onwritable();
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
640 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
641 else
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
642 log("debug", "Removing unknown fd %d", fd);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
643 epoll.ctl("del", fd);
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
644 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
645 elseif r ~= "timeout" then
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
646 log("debug", "epoll_wait error: %s", tostring(r));
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
647 end
7797
d0c32d86724f server_epoll: Flush and close all connections before quitting mainloop so no data is lost in buffers
Kim Alvefur <zash@zash.se>
parents: 7796
diff changeset
648 until once or (quitting and next(fds) == nil);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
649 return quitting;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
650 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
651
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
652 return {
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
653 get_backend = function () return "epoll"; end;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
654 addserver = addserver;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
655 addclient = addclient;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
656 add_task = addtimer;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
657 at = at;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
658 loop = loop;
7794
424bbbeb9257 server_epoll: Add closeall() method for closing all clients and servers
Kim Alvefur <zash@zash.se>
parents: 7737
diff changeset
659 closeall = closeall;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
660 setquitting = setquitting;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
661 wrapclient = wrapclient;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
662 link = link;
7657
252823632401 net.server_epoll: Support for setting configuration parameters
Kim Alvefur <zash@zash.se>
parents: 7637
diff changeset
663 set_config = function (newconfig)
252823632401 net.server_epoll: Support for setting configuration parameters
Kim Alvefur <zash@zash.se>
parents: 7637
diff changeset
664 cfg = setmetatable(newconfig, default_config);
252823632401 net.server_epoll: Support for setting configuration parameters
Kim Alvefur <zash@zash.se>
parents: 7637
diff changeset
665 end;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
666
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
667 -- libevent emulation
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
668 event = { EV_READ = "r", EV_WRITE = "w", EV_READWRITE = "rw", EV_LEAVE = -1 };
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
669 addevent = function (fd, mode, callback)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
670 local function onevent(self)
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
671 local ret = self:callback();
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
672 if ret == -1 then
7817
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
673 self:setflags(false, false);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
674 elseif ret then
7817
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
675 self:setflags(mode == "r" or mode == "rw", mode == "w" or mode == "rw");
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
676 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
677 end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
678
7817
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
679 local conn = setmetatable({
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
680 getfd = function () return fd; end;
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
681 callback = callback;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
682 onreadable = onevent;
8542
8c39ec8e6018 net.server_epoll: Spelling writeable -> writable
Kim Alvefur <zash@zash.se>
parents: 8541
diff changeset
683 onwritable = onevent;
7817
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
684 close = function (self)
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
685 self:setflags(false, false);
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
686 fds[fd] = nil;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
687 end;
7817
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
688 }, interface_mt);
4e3654031693 net.server_epoll: Reuse interface metatable for event compat layer
Kim Alvefur <zash@zash.se>
parents: 7811
diff changeset
689 local ok, err = conn:setflags(mode == "r" or mode == "rw", mode == "w" or mode == "rw");
7547
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
690 if not ok then return ok, err; end
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
691 return conn;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
692 end;
b327322ce2dd net.server_epoll: New experimental server backend
Kim Alvefur <zash@zash.se>
parents:
diff changeset
693 };