… | |
… | |
564 | |
564 | |
565 | #endif |
565 | #endif |
566 | |
566 | |
567 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
568 | |
568 | |
|
|
569 | #ifndef EV_HAVE_EV_TIME |
569 | ev_tstamp |
570 | ev_tstamp |
570 | ev_time (void) |
571 | ev_time (void) |
571 | { |
572 | { |
572 | #if EV_USE_REALTIME |
573 | #if EV_USE_REALTIME |
573 | if (expect_true (have_realtime)) |
574 | if (expect_true (have_realtime)) |
… | |
… | |
580 | |
581 | |
581 | struct timeval tv; |
582 | struct timeval tv; |
582 | gettimeofday (&tv, 0); |
583 | gettimeofday (&tv, 0); |
583 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | return tv.tv_sec + tv.tv_usec * 1e-6; |
584 | } |
585 | } |
|
|
586 | #endif |
585 | |
587 | |
586 | inline_size ev_tstamp |
588 | inline_size ev_tstamp |
587 | get_clock (void) |
589 | get_clock (void) |
588 | { |
590 | { |
589 | #if EV_USE_MONOTONIC |
591 | #if EV_USE_MONOTONIC |
… | |
… | |
625 | |
627 | |
626 | tv.tv_sec = (time_t)delay; |
628 | tv.tv_sec = (time_t)delay; |
627 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
629 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
628 | |
630 | |
629 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
631 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
630 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
632 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
631 | /* by older ones */ |
633 | /* by older ones */ |
632 | select (0, 0, 0, 0, &tv); |
634 | select (0, 0, 0, 0, &tv); |
633 | #endif |
635 | #endif |
634 | } |
636 | } |
635 | } |
637 | } |
… | |
… | |
1356 | ev_loop_count (EV_P) |
1358 | ev_loop_count (EV_P) |
1357 | { |
1359 | { |
1358 | return loop_count; |
1360 | return loop_count; |
1359 | } |
1361 | } |
1360 | |
1362 | |
|
|
1363 | unsigned int |
|
|
1364 | ev_loop_depth (EV_P) |
|
|
1365 | { |
|
|
1366 | return loop_depth; |
|
|
1367 | } |
|
|
1368 | |
1361 | void |
1369 | void |
1362 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1370 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
1363 | { |
1371 | { |
1364 | io_blocktime = interval; |
1372 | io_blocktime = interval; |
1365 | } |
1373 | } |
… | |
… | |
2018 | |
2026 | |
2019 | mn_now = ev_rt_now; |
2027 | mn_now = ev_rt_now; |
2020 | } |
2028 | } |
2021 | } |
2029 | } |
2022 | |
2030 | |
2023 | static int loop_done; |
|
|
2024 | |
|
|
2025 | void |
2031 | void |
2026 | ev_loop (EV_P_ int flags) |
2032 | ev_loop (EV_P_ int flags) |
2027 | { |
2033 | { |
|
|
2034 | ++loop_depth; |
|
|
2035 | |
2028 | loop_done = EVUNLOOP_CANCEL; |
2036 | loop_done = EVUNLOOP_CANCEL; |
2029 | |
2037 | |
2030 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2038 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2031 | |
2039 | |
2032 | do |
2040 | do |
… | |
… | |
2073 | ev_tstamp waittime = 0.; |
2081 | ev_tstamp waittime = 0.; |
2074 | ev_tstamp sleeptime = 0.; |
2082 | ev_tstamp sleeptime = 0.; |
2075 | |
2083 | |
2076 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2084 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2077 | { |
2085 | { |
|
|
2086 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2087 | ev_tstamp prev_mn_now = mn_now; |
|
|
2088 | |
2078 | /* update time to cancel out callback processing overhead */ |
2089 | /* update time to cancel out callback processing overhead */ |
2079 | time_update (EV_A_ 1e100); |
2090 | time_update (EV_A_ 1e100); |
2080 | |
2091 | |
2081 | waittime = MAX_BLOCKTIME; |
2092 | waittime = MAX_BLOCKTIME; |
2082 | |
2093 | |
… | |
… | |
2092 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2103 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
2093 | if (waittime > to) waittime = to; |
2104 | if (waittime > to) waittime = to; |
2094 | } |
2105 | } |
2095 | #endif |
2106 | #endif |
2096 | |
2107 | |
|
|
2108 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2097 | if (expect_false (waittime < timeout_blocktime)) |
2109 | if (expect_false (waittime < timeout_blocktime)) |
2098 | waittime = timeout_blocktime; |
2110 | waittime = timeout_blocktime; |
2099 | |
2111 | |
2100 | sleeptime = waittime - backend_fudge; |
2112 | /* extra check because io_blocktime is commonly 0 */ |
2101 | |
|
|
2102 | if (expect_true (sleeptime > io_blocktime)) |
2113 | if (expect_false (io_blocktime)) |
2103 | sleeptime = io_blocktime; |
|
|
2104 | |
|
|
2105 | if (sleeptime) |
|
|
2106 | { |
2114 | { |
|
|
2115 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2116 | |
|
|
2117 | if (sleeptime > waittime - backend_fudge) |
|
|
2118 | sleeptime = waittime - backend_fudge; |
|
|
2119 | |
|
|
2120 | if (expect_true (sleeptime > 0.)) |
|
|
2121 | { |
2107 | ev_sleep (sleeptime); |
2122 | ev_sleep (sleeptime); |
2108 | waittime -= sleeptime; |
2123 | waittime -= sleeptime; |
|
|
2124 | } |
2109 | } |
2125 | } |
2110 | } |
2126 | } |
2111 | |
2127 | |
2112 | ++loop_count; |
2128 | ++loop_count; |
2113 | backend_poll (EV_A_ waittime); |
2129 | backend_poll (EV_A_ waittime); |
… | |
… | |
2139 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2155 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2140 | )); |
2156 | )); |
2141 | |
2157 | |
2142 | if (loop_done == EVUNLOOP_ONE) |
2158 | if (loop_done == EVUNLOOP_ONE) |
2143 | loop_done = EVUNLOOP_CANCEL; |
2159 | loop_done = EVUNLOOP_CANCEL; |
|
|
2160 | |
|
|
2161 | --loop_depth; |
2144 | } |
2162 | } |
2145 | |
2163 | |
2146 | void |
2164 | void |
2147 | ev_unloop (EV_P_ int how) |
2165 | ev_unloop (EV_P_ int how) |
2148 | { |
2166 | { |