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Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pi
From: |
Andrew J. Schorr |
Subject: |
Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe |
Date: |
Tue, 2 Jan 2024 12:49:33 -0500 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hi,
On Tue, Jan 02, 2024 at 03:46:05PM +0100, Andreas Schwab wrote:
> On Jan 02 2024, Andrew J. Schorr wrote:
>
> > The awk gettimeofday() call should simply map to the gettimeofday()
> > system call, and systime() maps to time().
>
> The gettimeofday and time functions use different time sources with
> differing precision, so they may move to the next second at slightly
> different points.
Is this on Linux? I'm no expert on this, but in the kernel source
lib/vdso/gettimeofday.c, I see this:
__cvdso_gettimeofday_data:
if (do_hres(&vd[CS_HRES_COARSE], CLOCK_REALTIME, &ts))
return gettimeofday_fallback(tv, tz);
tv->tv_sec = ts.tv_sec;
tv->tv_usec = (u32)ts.tv_nsec / NSEC_PER_USEC;
__cvdso_time_data:
t = READ_ONCE(vd[CS_HRES_COARSE].basetime[CLOCK_REALTIME].sec);
This looks to me as if it's the same source. But maybe I'm looking in the
wrong place or misunderstanding.
Regards,
Andy
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, Andreas Schwab, 2024/01/02
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, arnold, 2024/01/02
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, Andreas Schwab, 2024/01/02
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, Andreas Schwab, 2024/01/02
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe,
Andrew J. Schorr <=
- Re: systime() vs gettimeofday(), Andrew J. Schorr, 2024/01/02
- Re: systime() vs gettimeofday(), arnold, 2024/01/02
- Re: systime() vs gettimeofday(), Eli Zaretskii, 2024/01/02
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, arnold, 2024/01/12
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, Andrew J. Schorr, 2024/01/12
- Re: gawk: sigpipe1.awk:7: fatal: print to "yes | true" failed: Broken pipe, arnold, 2024/01/13