Mercurial > hg > octave-shane > gnulib-hg
view modules/stdio @ 17388:3c592b4deb04
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 | 840fa337f971 |
children |
line wrap: on
line source
Description: A GNU-like <stdio.h>. Files: lib/stdio.in.h m4/stdio_h.m4 Depends-on: include_next snippet/arg-nonnull snippet/c++defs snippet/warn-on-use ssize_t stddef sys_types configure.ac: gl_STDIO_H Makefile.am: BUILT_SOURCES += stdio.h # We need the following in order to create <stdio.h> when the system # doesn't have one that works with the given compiler. stdio.h: stdio.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H) $(AM_V_GEN)rm -f $@-t $@ && \ { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \ sed -e 's|@''GUARD_PREFIX''@|${gl_include_guard_prefix}|g' \ -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \ -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \ -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \ -e 's|@''NEXT_STDIO_H''@|$(NEXT_STDIO_H)|g' \ -e 's/@''GNULIB_DPRINTF''@/$(GNULIB_DPRINTF)/g' \ -e 's/@''GNULIB_FCLOSE''@/$(GNULIB_FCLOSE)/g' \ -e 's/@''GNULIB_FDOPEN''@/$(GNULIB_FDOPEN)/g' \ -e 's/@''GNULIB_FFLUSH''@/$(GNULIB_FFLUSH)/g' \ -e 's/@''GNULIB_FGETC''@/$(GNULIB_FGETC)/g' \ -e 's/@''GNULIB_FGETS''@/$(GNULIB_FGETS)/g' \ -e 's/@''GNULIB_FOPEN''@/$(GNULIB_FOPEN)/g' \ -e 's/@''GNULIB_FPRINTF''@/$(GNULIB_FPRINTF)/g' \ -e 's/@''GNULIB_FPRINTF_POSIX''@/$(GNULIB_FPRINTF_POSIX)/g' \ -e 's/@''GNULIB_FPURGE''@/$(GNULIB_FPURGE)/g' \ -e 's/@''GNULIB_FPUTC''@/$(GNULIB_FPUTC)/g' \ -e 's/@''GNULIB_FPUTS''@/$(GNULIB_FPUTS)/g' \ -e 's/@''GNULIB_FREAD''@/$(GNULIB_FREAD)/g' \ -e 's/@''GNULIB_FREOPEN''@/$(GNULIB_FREOPEN)/g' \ -e 's/@''GNULIB_FSCANF''@/$(GNULIB_FSCANF)/g' \ -e 's/@''GNULIB_FSEEK''@/$(GNULIB_FSEEK)/g' \ -e 's/@''GNULIB_FSEEKO''@/$(GNULIB_FSEEKO)/g' \ -e 's/@''GNULIB_FTELL''@/$(GNULIB_FTELL)/g' \ -e 's/@''GNULIB_FTELLO''@/$(GNULIB_FTELLO)/g' \ -e 's/@''GNULIB_FWRITE''@/$(GNULIB_FWRITE)/g' \ -e 's/@''GNULIB_GETC''@/$(GNULIB_GETC)/g' \ -e 's/@''GNULIB_GETCHAR''@/$(GNULIB_GETCHAR)/g' \ -e 's/@''GNULIB_GETDELIM''@/$(GNULIB_GETDELIM)/g' \ -e 's/@''GNULIB_GETLINE''@/$(GNULIB_GETLINE)/g' \ -e 's/@''GNULIB_OBSTACK_PRINTF''@/$(GNULIB_OBSTACK_PRINTF)/g' \ -e 's/@''GNULIB_OBSTACK_PRINTF_POSIX''@/$(GNULIB_OBSTACK_PRINTF_POSIX)/g' \ -e 's/@''GNULIB_PCLOSE''@/$(GNULIB_PCLOSE)/g' \ -e 's/@''GNULIB_PERROR''@/$(GNULIB_PERROR)/g' \ -e 's/@''GNULIB_POPEN''@/$(GNULIB_POPEN)/g' \ -e 's/@''GNULIB_PRINTF''@/$(GNULIB_PRINTF)/g' \ -e 's/@''GNULIB_PRINTF_POSIX''@/$(GNULIB_PRINTF_POSIX)/g' \ -e 's/@''GNULIB_PUTC''@/$(GNULIB_PUTC)/g' \ -e 's/@''GNULIB_PUTCHAR''@/$(GNULIB_PUTCHAR)/g' \ -e 's/@''GNULIB_PUTS''@/$(GNULIB_PUTS)/g' \ -e 's/@''GNULIB_REMOVE''@/$(GNULIB_REMOVE)/g' \ -e 's/@''GNULIB_RENAME''@/$(GNULIB_RENAME)/g' \ -e 's/@''GNULIB_RENAMEAT''@/$(GNULIB_RENAMEAT)/g' \ -e 's/@''GNULIB_SCANF''@/$(GNULIB_SCANF)/g' \ -e 's/@''GNULIB_SNPRINTF''@/$(GNULIB_SNPRINTF)/g' \ -e 's/@''GNULIB_SPRINTF_POSIX''@/$(GNULIB_SPRINTF_POSIX)/g' \ -e 's/@''GNULIB_STDIO_H_NONBLOCKING''@/$(GNULIB_STDIO_H_NONBLOCKING)/g' \ -e 's/@''GNULIB_STDIO_H_SIGPIPE''@/$(GNULIB_STDIO_H_SIGPIPE)/g' \ -e 's/@''GNULIB_TMPFILE''@/$(GNULIB_TMPFILE)/g' \ -e 's/@''GNULIB_VASPRINTF''@/$(GNULIB_VASPRINTF)/g' \ -e 's/@''GNULIB_VDPRINTF''@/$(GNULIB_VDPRINTF)/g' \ -e 's/@''GNULIB_VFPRINTF''@/$(GNULIB_VFPRINTF)/g' \ -e 's/@''GNULIB_VFPRINTF_POSIX''@/$(GNULIB_VFPRINTF_POSIX)/g' \ -e 's/@''GNULIB_VFSCANF''@/$(GNULIB_VFSCANF)/g' \ -e 's/@''GNULIB_VSCANF''@/$(GNULIB_VSCANF)/g' \ -e 's/@''GNULIB_VPRINTF''@/$(GNULIB_VPRINTF)/g' \ -e 's/@''GNULIB_VPRINTF_POSIX''@/$(GNULIB_VPRINTF_POSIX)/g' \ -e 's/@''GNULIB_VSNPRINTF''@/$(GNULIB_VSNPRINTF)/g' \ -e 's/@''GNULIB_VSPRINTF_POSIX''@/$(GNULIB_VSPRINTF_POSIX)/g' \ < $(srcdir)/stdio.in.h | \ sed -e 's|@''HAVE_DECL_FPURGE''@|$(HAVE_DECL_FPURGE)|g' \ -e 's|@''HAVE_DECL_FSEEKO''@|$(HAVE_DECL_FSEEKO)|g' \ -e 's|@''HAVE_DECL_FTELLO''@|$(HAVE_DECL_FTELLO)|g' \ -e 's|@''HAVE_DECL_GETDELIM''@|$(HAVE_DECL_GETDELIM)|g' \ -e 's|@''HAVE_DECL_GETLINE''@|$(HAVE_DECL_GETLINE)|g' \ -e 's|@''HAVE_DECL_OBSTACK_PRINTF''@|$(HAVE_DECL_OBSTACK_PRINTF)|g' \ -e 's|@''HAVE_DECL_SNPRINTF''@|$(HAVE_DECL_SNPRINTF)|g' \ -e 's|@''HAVE_DECL_VSNPRINTF''@|$(HAVE_DECL_VSNPRINTF)|g' \ -e 's|@''HAVE_DPRINTF''@|$(HAVE_DPRINTF)|g' \ -e 's|@''HAVE_FSEEKO''@|$(HAVE_FSEEKO)|g' \ -e 's|@''HAVE_FTELLO''@|$(HAVE_FTELLO)|g' \ -e 's|@''HAVE_PCLOSE''@|$(HAVE_PCLOSE)|g' \ -e 's|@''HAVE_POPEN''@|$(HAVE_POPEN)|g' \ -e 's|@''HAVE_RENAMEAT''@|$(HAVE_RENAMEAT)|g' \ -e 's|@''HAVE_VASPRINTF''@|$(HAVE_VASPRINTF)|g' \ -e 's|@''HAVE_VDPRINTF''@|$(HAVE_VDPRINTF)|g' \ -e 's|@''REPLACE_DPRINTF''@|$(REPLACE_DPRINTF)|g' \ -e 's|@''REPLACE_FCLOSE''@|$(REPLACE_FCLOSE)|g' \ -e 's|@''REPLACE_FDOPEN''@|$(REPLACE_FDOPEN)|g' \ -e 's|@''REPLACE_FFLUSH''@|$(REPLACE_FFLUSH)|g' \ -e 's|@''REPLACE_FOPEN''@|$(REPLACE_FOPEN)|g' \ -e 's|@''REPLACE_FPRINTF''@|$(REPLACE_FPRINTF)|g' \ -e 's|@''REPLACE_FPURGE''@|$(REPLACE_FPURGE)|g' \ -e 's|@''REPLACE_FREOPEN''@|$(REPLACE_FREOPEN)|g' \ -e 's|@''REPLACE_FSEEK''@|$(REPLACE_FSEEK)|g' \ -e 's|@''REPLACE_FSEEKO''@|$(REPLACE_FSEEKO)|g' \ -e 's|@''REPLACE_FTELL''@|$(REPLACE_FTELL)|g' \ -e 's|@''REPLACE_FTELLO''@|$(REPLACE_FTELLO)|g' \ -e 's|@''REPLACE_GETDELIM''@|$(REPLACE_GETDELIM)|g' \ -e 's|@''REPLACE_GETLINE''@|$(REPLACE_GETLINE)|g' \ -e 's|@''REPLACE_OBSTACK_PRINTF''@|$(REPLACE_OBSTACK_PRINTF)|g' \ -e 's|@''REPLACE_PERROR''@|$(REPLACE_PERROR)|g' \ -e 's|@''REPLACE_POPEN''@|$(REPLACE_POPEN)|g' \ -e 's|@''REPLACE_PRINTF''@|$(REPLACE_PRINTF)|g' \ -e 's|@''REPLACE_REMOVE''@|$(REPLACE_REMOVE)|g' \ -e 's|@''REPLACE_RENAME''@|$(REPLACE_RENAME)|g' \ -e 's|@''REPLACE_RENAMEAT''@|$(REPLACE_RENAMEAT)|g' \ -e 's|@''REPLACE_SNPRINTF''@|$(REPLACE_SNPRINTF)|g' \ -e 's|@''REPLACE_SPRINTF''@|$(REPLACE_SPRINTF)|g' \ -e 's|@''REPLACE_STDIO_READ_FUNCS''@|$(REPLACE_STDIO_READ_FUNCS)|g' \ -e 's|@''REPLACE_STDIO_WRITE_FUNCS''@|$(REPLACE_STDIO_WRITE_FUNCS)|g' \ -e 's|@''REPLACE_TMPFILE''@|$(REPLACE_TMPFILE)|g' \ -e 's|@''REPLACE_VASPRINTF''@|$(REPLACE_VASPRINTF)|g' \ -e 's|@''REPLACE_VDPRINTF''@|$(REPLACE_VDPRINTF)|g' \ -e 's|@''REPLACE_VFPRINTF''@|$(REPLACE_VFPRINTF)|g' \ -e 's|@''REPLACE_VPRINTF''@|$(REPLACE_VPRINTF)|g' \ -e 's|@''REPLACE_VSNPRINTF''@|$(REPLACE_VSNPRINTF)|g' \ -e 's|@''REPLACE_VSPRINTF''@|$(REPLACE_VSPRINTF)|g' \ -e 's|@''ASM_SYMBOL_PREFIX''@|$(ASM_SYMBOL_PREFIX)|g' \ -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \ -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \ -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \ } > $@-t && \ mv $@-t $@ MOSTLYCLEANFILES += stdio.h stdio.h-t Include: <stdio.h> License: LGPLv2+ Maintainer: all