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comparison net/server_epoll.lua @ 7658:e14a124c4d73

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net.server_epoll: Make minimum poll wait time configurable
author Kim Alvefur <zash@zash.se>
date Sun, 04 Sep 2016 17:17:22 +0200
parents 252823632401
children ae24deae6488
comparison
equal deleted inserted replaced
7657:252823632401 7658:e14a124c4d73
33 accept_retry_interval = 10; 33 accept_retry_interval = 10;
34 read_retry_delay = 1e-06; 34 read_retry_delay = 1e-06;
35 connect_timeout = 20; 35 connect_timeout = 20;
36 handshake_timeout = 60; 36 handshake_timeout = 60;
37 max_wait = 86400; 37 max_wait = 86400;
38 min_wait = 1e-06;
38 }}; 39 }};
39 local cfg = default_config.__index; 40 local cfg = default_config.__index;
40 41
41 local fds = createtable(10, 0); -- FD -> conn 42 local fds = createtable(10, 0); -- FD -> conn
42 43
66 return at(gettime() + timeout, f); 67 return at(gettime() + timeout, f);
67 end 68 end
68 69
69 -- Run callbacks of expired timers 70 -- Run callbacks of expired timers
70 -- Return time until next timeout 71 -- Return time until next timeout
71 local function runtimers(next_delay) 72 local function runtimers(next_delay, min_wait)
72 -- Any timers at all? 73 -- Any timers at all?
73 if not timers[1] then 74 if not timers[1] then
74 return next_delay; 75 return next_delay;
75 end 76 end
76 77
102 resort_timers = true; 103 resort_timers = true;
103 else 104 else
104 t_remove(timers, i); 105 t_remove(timers, i);
105 end 106 end
106 end 107 end
107 if resort_timers or next_delay < 1e-6 then 108
109 if resort_timers or next_delay < min_wait then
108 -- Timers may be added from within a timer callback. 110 -- Timers may be added from within a timer callback.
109 -- Those would not be considered for next_delay, 111 -- Those would not be considered for next_delay,
110 -- and we might sleep for too long, so instead 112 -- and we might sleep for too long, so instead
111 -- we return a shorter timeout so we can 113 -- we return a shorter timeout so we can
112 -- properly sort all new timers. 114 -- properly sort all new timers.
113 next_delay = 1e-6; 115 next_delay = min_wait;
114 end 116 end
117
115 return next_delay; 118 return next_delay;
116 end 119 end
117 120
118 -- Socket handler interface 121 -- Socket handler interface
119 122
600 end 603 end
601 604
602 -- Main loop 605 -- Main loop
603 local function loop() 606 local function loop()
604 repeat 607 repeat
605 local t = runtimers(cfg.max_wait); 608 local t = runtimers(cfg.max_wait, cfg.min_wait);
606 local fd, r, w = epoll.wait(t); 609 local fd, r, w = epoll.wait(t);
607 if fd then 610 if fd then
608 local conn = fds[fd]; 611 local conn = fds[fd];
609 if conn then 612 if conn then
610 if r then 613 if r then