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https://github.com/jart/cosmopolitan.git
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3f0bcdc3ef
- 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)
60 lines
2 KiB
C
60 lines
2 KiB
C
#ifndef NSYNC_TIME_H_
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#define NSYNC_TIME_H_
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#include "libc/calls/struct/timespec.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define NSYNC_TIME_SEC(t) ((t).tv_sec)
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#define NSYNC_TIME_NSEC(t) ((t).tv_nsec)
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#define NSYNC_TIME_STATIC_INIT(t, ns) \
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{ (t), (ns) }
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/* The type nsync_time represents the interval elapsed between two
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moments in time. Often the first such moment is an address-space-wide
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epoch, such as the Unix epoch, but clients should not rely on the
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epoch in one address space being the same as that in another.
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Intervals relative to the epoch are known as absolute times. */
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typedef struct timespec nsync_time;
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/* A deadline infinitely far in the future. */
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#define nsync_time_no_deadline timespec_max
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/* The zero delay, or an expired deadline. */
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#define nsync_time_zero timespec_zero
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/* Return the current time since the epoch. */
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#define nsync_time_now() timespec_real()
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/* Sleep for the specified delay. Returns the unslept time which may be
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non-zero if the call was interrupted. */
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#define nsync_time_sleep(a) timespec_sleep(a)
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/* Sleep until the specified time. Returns 0 on success, and EINTR
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if the call was interrupted. */
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#define nsync_time_sleep_until(a) timespec_sleep_until(a)
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/* Return a+b */
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#define nsync_time_add(a, b) timespec_add(a, b)
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/* Return a-b */
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#define nsync_time_sub(a, b) timespec_sub(a, b)
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/* Return +ve, 0, or -ve according to whether a>b, a==b, or a<b. */
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#define nsync_time_cmp(a, b) timespec_cmp(a, b)
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/* Return the specified number of milliseconds as a time. */
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#define nsync_time_ms(a) timespec_frommillis(a)
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/* Return the specified number of microseconds as a time. */
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#define nsync_time_us(a) timespec_frommicros(a)
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/* Return the specified number of nanoseconds as a time. */
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#define nsync_time_ns(a) timespec_fromnanos(a)
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/* Return an nsync_time constructed from second and nanosecond
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components */
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#define nsync_time_s_ns(s, ns) ((nsync_time){(int64_t)(s), (unsigned)(ns)})
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* NSYNC_TIME_H_ */
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