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annotate modules/byteswap @ 17388:3c592b4deb04

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utimensat-tests, etc.: try to fix some races Problem reported by Bernhard Voelker in <http://lists.gnu.org/archive/html/bug-gnulib/2013-04/msg00071.html>. I don't know whether this patch fixes that race condition, but it fixes *some* race conditions, so it should be a win. * modules/chown-tests (Depends-on): * modules/fchownat-tests (Depends-on): * modules/fdutimensat-tests (Depends-on): * modules/futimens-tests (Depends-on): * modules/lchown-tests (Depends-on): * modules/stat-time-tests (Depends-on): * modules/utimens-tests (Depends-on): * modules/utimensat-tests (Depends-on): Depend on nanosleep, not usleep. * modules/chown-tests (test_chown_LDADD): * modules/lchown-tests (test_lchown_LDADD): * modules/stat-time-tests (test_stat_time_LDADD): New macro. * modules/fchownat-tests (test_fchownat_LDADD): * modules/fdutimensat-tests (test_fdutimensat_LDADD): * modules/futimens-tests (test_futimens_LDADD): * modules/utimens-tests (test_utimens_LDADD): * modules/utimensat-tests (test_utimensat_LDADD): Add $(LIB_NANOSLEEP). * modules/stat-time-tests (Files): Add tests/nap.h. * tests/nap.h: Include <limits.h>, for INT_MAX. (lt_mtime): Remove. (diff_timespec): New function. (get_stat): Rename from get_mtime. All callers changed. (nap_works): Determine the needed delay by inspecting the file system's timestamp jumps; this should be more reliable. Look at both mtime and ctime, and take the maximum of the two jumps. (nap_works, guess_delay): Return a nanosecond cound, not a microsecond count. All callers changed. (nap_works, nap): Use nanosleep, not usleep. Check for nanosleep failure. (nap): Multiply the guess by 1.125, to accommodate the case where the file system's clock is a bit slower than nanosleep's clock. * tests/test-stat-time.c (BASE): New macro. Include nap.h. (nap): Remove; nap.h now defines this. This removes a duplicate implementation of 'nap'.
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 30 Apr 2013 23:14:19 -0700
parents 662ae53d8d37
children 6758fa38915e
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1 Description:
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2 Swap bytes of 16, 32 and 64 bit values.
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3
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4 Files:
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5 lib/byteswap.in.h
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6 m4/byteswap.m4
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7
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8 Depends-on:
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9
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10 configure.ac:
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11 gl_BYTESWAP
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12
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13 Makefile.am:
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14 BUILT_SOURCES += $(BYTESWAP_H)
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16 # We need the following in order to create <byteswap.h> when the system
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17 # doesn't have one.
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18 if GL_GENERATE_BYTESWAP_H
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19 byteswap.h: byteswap.in.h $(top_builddir)/config.status
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20 $(AM_V_GEN)rm -f $@-t $@ && \
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8bace4b08db5 Mark generated files as "DO NOT EDIT".
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21 { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
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22 cat $(srcdir)/byteswap.in.h; \
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23 } > $@-t && \
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24 mv -f $@-t $@
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25 else
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26 byteswap.h: $(top_builddir)/config.status
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27 rm -f $@
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28 endif
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29 MOSTLYCLEANFILES += byteswap.h byteswap.h-t
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30
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31 Include:
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32 <byteswap.h>
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33
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34 License:
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1c1c832cb7f3 Re-license byteswap to LGPLv2+.
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35 LGPLv2+
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36
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37 Maintainer:
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38 Oskar Liljeblad