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Improve cancellations, randomness, and time
- Exhaustively document cancellation points - Rename SIGCANCEL to SIGTHR just like BSDs - Further improve POSIX thread cancellations - Ensure asynchronous cancellations work correctly - Elevate the quality of getrandom() and getentropy() - Make futexes cancel correctly on OpenBSD 6.x and 7.x - Add reboot.com and shutdown.com to examples directory - Remove underscore prefix from awesome timespec_*() APIs - Create assertions that help verify our cancellation points - Remove bad timespec APIs (cmp generalizes eq/ne/gt/gte/lt/lte)
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173 changed files with 1599 additions and 782 deletions
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@ -33,24 +33,24 @@ textwindows int sys_clock_nanosleep_nt(int clock, int flags,
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abs = *req;
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for (;;) {
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if (sys_clock_gettime_nt(clock, &now)) return -1;
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if (_timespec_gte(now, abs)) return 0;
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if (timespec_cmp(now, abs) >= 0) return 0;
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if (_check_interrupts(false, g_fds.p)) return -1;
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SleepEx(MIN(__SIG_POLLING_INTERVAL_MS,
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_timespec_tomillis(_timespec_sub(abs, now))),
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timespec_tomillis(timespec_sub(abs, now))),
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false);
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}
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} else {
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if (sys_clock_gettime_nt(clock, &now)) return -1;
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abs = _timespec_add(now, *req);
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abs = timespec_add(now, *req);
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for (;;) {
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sys_clock_gettime_nt(clock, &now);
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if (_timespec_gte(now, abs)) return 0;
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if (timespec_cmp(now, abs) >= 0) return 0;
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if (_check_interrupts(false, g_fds.p)) {
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if (rem) *rem = _timespec_sub(abs, now);
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if (rem) *rem = timespec_sub(abs, now);
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return -1;
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}
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SleepEx(MIN(__SIG_POLLING_INTERVAL_MS,
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_timespec_tomillis(_timespec_sub(abs, now))),
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timespec_tomillis(timespec_sub(abs, now))),
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false);
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}
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}
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