OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

re PR libstdc++/52680 (std::this_thread::sleep_for #ifdef'd out by _GLIBCXX_USE_NANOSLEEP) 

PR libstdc++/52680
	* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Check for usleep and
	sleep if nanosleep is not available. Bump libtool revision.
	* config.h.in: Regenerate.
	* configure: Likewise.
	* config/abi/pre/gnu.ver (GLIBCXX_3.4.18): Add __sleep_for.
	* include/std/thread (this_thread::__sleep_for): Add.
	(this_thread::yield, this_thread::sleep_until, this_thread::sleep_for):
	Declare unconditionally.
	* src/c++11/thread.cc (this_thread::__sleep_for): Define.
	* testsuite/lib/libstdc++.exp (check_v3_target_nanosleep): Rename to
	check_v3_target_sleep.
	* testsuite/lib/dg-options.exp (dg-require-nanosleep): Rename to
	dg-require-sleep.
	* testsuite/30_threads/condition_variable_any/53830.cc: Update.
	* testsuite/30_threads/this_thread/2.cc: Likewise.
	* testsuite/30_threads/this_thread/3.cc: Likewise.
	* testsuite/30_threads/this_thread/4.cc: Likewise.
	* testsuite/30_threads/async/54297.cc: Likewise.

From-SVN: r193769
This commit is contained in:
Jonathan Wakely 2012-11-23 22:11:23 +00:00 committed by Jonathan Wakely
parent 9cb5411c17
commit aa66b299c8
14 changed files with 196 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,25 @@
2012-11-23 Jonathan Wakely <jwakely.gcc@gmail.com>
PR libstdc++/52680
* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Check for usleep and
sleep if nanosleep is not available. Bump libtool revision.
* config.h.in: Regenerate.
* configure: Likewise.
* config/abi/pre/gnu.ver (GLIBCXX_3.4.18): Add __sleep_for.
* include/std/thread (this_thread::__sleep_for): Add.
(this_thread::yield, this_thread::sleep_until, this_thread::sleep_for):
Declare unconditionally.
* src/c++11/thread.cc (this_thread::__sleep_for): Define.
* testsuite/lib/libstdc++.exp (check_v3_target_nanosleep): Rename to
check_v3_target_sleep.
* testsuite/lib/dg-options.exp (dg-require-nanosleep): Rename to
dg-require-sleep.
* testsuite/30_threads/condition_variable_any/53830.cc: Update.
* testsuite/30_threads/this_thread/2.cc: Likewise.
* testsuite/30_threads/this_thread/3.cc: Likewise.
* testsuite/30_threads/this_thread/4.cc: Likewise.
* testsuite/30_threads/async/54297.cc: Likewise.
2012-11-20 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/55413

20
libstdc++-v3/acinclude.m4
View File

@ -1281,6 +1281,24 @@ AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [
if test x"$ac_has_nanosleep" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_NANOSLEEP, 1,
[ Defined if nanosleep is available. ])
else
AC_MSG_CHECKING([for sleep])
AC_TRY_COMPILE([#include <unistd.h>],
[sleep(1)],
[ac_has_sleep=yes],[ac_has_sleep=no])
if test x"$ac_has_sleep" = x"yes"; then
AC_DEFINE(HAVE_SLEEP,1, [Defined if sleep exists.])
fi
AC_MSG_RESULT($ac_has_sleep)
AC_MSG_CHECKING([for usleep])
AC_TRY_COMPILE([#include <unistd.h>],
[sleep(1);
usleep(100);],
[ac_has_usleep=yes],[ac_has_usleep=no])
if test x"$ac_has_usleep" = x"yes"; then
AC_DEFINE(HAVE_USLEEP,1, [Defined if usleep exists.])
fi
AC_MSG_RESULT($ac_has_usleep)
fi
AC_SUBST(GLIBCXX_LIBS)
@ -3201,7 +3219,7 @@ changequote([,])dnl
fi
# For libtool versioning info, format is CURRENT:REVISION:AGE
libtool_VERSION=6:17:0
libtool_VERSION=6:18:0
# Everything parsed; figure out what files and settings to use.
case $enable_symvers in

6
libstdc++-v3/config.h.in
View File

@ -327,6 +327,9 @@
/* Define to 1 if you have the `sinl' function. */
#undef HAVE_SINL
/* Defined if sleep exists. */
#undef HAVE_SLEEP
/* Define to 1 if you have the `sqrtf' function. */
#undef HAVE_SQRTF
@ -436,6 +439,9 @@
/* Define to 1 if you have the <unistd.h> header file. */
#undef HAVE_UNISTD_H
/* Defined if usleep exists. */
#undef HAVE_USLEEP
/* Defined if vfwscanf exists. */
#undef HAVE_VFWSCANF

3
libstdc++-v3/config/abi/pre/gnu.ver
View File

@ -1339,6 +1339,9 @@ GLIBCXX_3.4.18 {
# construction vtable
_ZTCSt*;
# std::this_thread::__sleep_for
_ZNSt11this_thread11__sleep_for*;
} GLIBCXX_3.4.17;
# Symbols in the support library (libsupc++) have their own tag.

56
libstdc++-v3/configure vendored
View File

@ -19844,6 +19844,60 @@ $as_echo "#define _GLIBCXX_USE_CLOCK_REALTIME 1" >>confdefs.h
$as_echo "#define _GLIBCXX_USE_NANOSLEEP 1" >>confdefs.h
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sleep" >&5
$as_echo_n "checking for sleep... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <unistd.h>
int
main ()
{
sleep(1)
;
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
ac_has_sleep=yes
else
ac_has_sleep=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
if test x"$ac_has_sleep" = x"yes"; then
$as_echo "#define HAVE_SLEEP 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_sleep" >&5
$as_echo "$ac_has_sleep" >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for usleep" >&5
$as_echo_n "checking for usleep... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <unistd.h>
int
main ()
{
sleep(1);
usleep(100);
;
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
ac_has_usleep=yes
else
ac_has_usleep=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
if test x"$ac_has_usleep" = x"yes"; then
$as_echo "#define HAVE_USLEEP 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_has_usleep" >&5
$as_echo "$ac_has_usleep" >&6; }
fi
@ -70449,7 +70503,7 @@ $as_echo "$as_me: WARNING: === Symbol versioning will be disabled." >&2;}
fi
# For libtool versioning info, format is CURRENT:REVISION:AGE
libtool_VERSION=6:17:0
libtool_VERSION=6:18:0
# Everything parsed; figure out what files and settings to use.
case $enable_symvers in

24
libstdc++-v3/include/std/thread
View File

@ -251,32 +251,35 @@ _GLIBCXX_END_NAMESPACE_VERSION
inline thread::id
get_id() noexcept { return thread::id(__gthread_self()); }
#ifdef _GLIBCXX_USE_SCHED_YIELD
/// yield
inline void
yield() noexcept
{ __gthread_yield(); }
{
#ifdef _GLIBCXX_USE_SCHED_YIELD
__gthread_yield();
#endif
}
void
__sleep_for(chrono::seconds, chrono::nanoseconds);
#ifdef _GLIBCXX_USE_NANOSLEEP
/// sleep_for
template<typename _Rep, typename _Period>
inline void
sleep_for(const chrono::duration<_Rep, _Period>& __rtime)
{
chrono::seconds __s =
chrono::duration_cast<chrono::seconds>(__rtime);
chrono::nanoseconds __ns =
chrono::duration_cast<chrono::nanoseconds>(__rtime - __s);
auto __s = chrono::duration_cast<chrono::seconds>(__rtime);
auto __ns = chrono::duration_cast<chrono::nanoseconds>(__rtime - __s);
#ifdef _GLIBCXX_USE_NANOSLEEP
__gthread_time_t __ts =
{
static_cast<std::time_t>(__s.count()),
static_cast<long>(__ns.count())
};
::nanosleep(&__ts, 0);
#else
__sleep_for(__s, __ns);
#endif
}
/// sleep_until
@ -284,7 +287,6 @@ _GLIBCXX_END_NAMESPACE_VERSION
inline void
sleep_until(const chrono::time_point<_Clock, _Duration>& __atime)
{ sleep_for(__atime - _Clock::now()); }
#endif
_GLIBCXX_END_NAMESPACE_VERSION
}

48
libstdc++-v3/src/c++11/thread.cc
View File

@ -1,6 +1,6 @@
// thread -*- C++ -*-
// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
// Copyright (C) 2008-2012 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
@ -27,6 +27,8 @@
#include <system_error>
#include <cerrno>
#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
#if defined(_GLIBCXX_USE_GET_NPROCS)
# include <sys/sysinfo.h>
# define _GLIBCXX_NPROCS get_nprocs()
@ -55,7 +57,13 @@ static inline int get_nprocs()
# define _GLIBCXX_NPROCS 0
#endif
#if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
#ifndef _GLIBCXX_USE_NANOSLEEP
# ifdef _GLIBCXX_HAVE_SLEEP
# include <unistd.h>
# else
# error "No sleep function known for this target"
# endif
#endif
namespace std _GLIBCXX_VISIBILITY(default)
{
@ -142,6 +150,42 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
_GLIBCXX_END_NAMESPACE_VERSION
namespace this_thread
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
void
__sleep_for(chrono::seconds __s, chrono::nanoseconds __ns)
{
#ifdef _GLIBCXX_USE_NANOSLEEP
__gthread_time_t __ts =
{
static_cast<std::time_t>(__s.count()),
static_cast<long>(__ns.count())
};
::nanosleep(&__ts, 0);
#else
# ifdef _GLIBCXX_HAVE_SLEEP
# ifdef _GLIBCXX_HAVE_USLEEP
::sleep(__s.count());
if (__ns.count() > 0)
{
long __us = __ns.count() / 1000;
if (__us == 0)
__us = 1;
::usleep(__us);
}
# else
::sleep(__s.count() + (__ns >= 1000000));
# endif
# endif
#endif
}
_GLIBCXX_END_NAMESPACE_VERSION
}
} // namespace std
#endif // _GLIBCXX_HAS_GTHREADS && _GLIBCXX_USE_C99_STDINT_TR1

2
libstdc++-v3/testsuite/30_threads/async/54297.cc
View File

@ -5,7 +5,7 @@
// { dg-require-cstdint "" }
// { dg-require-gthreads "" }
// { dg-require-atomic-builtins "" }
// { dg-require-nanosleep "" }
// { dg-require-sleep "" }
// Copyright (C) 2012 Free Software Foundation, Inc.
//

2
libstdc++-v3/testsuite/30_threads/condition_variable_any/53830.cc
View File

@ -5,7 +5,7 @@
// { dg-require-cstdint "" }
// { dg-require-gthreads "" }
// { dg-require-sched-yield "" }
// { dg-require-nanosleep "" }
// { dg-require-sleep "" }
// Copyright (C) 2012 Free Software Foundation, Inc.
//

3
libstdc++-v3/testsuite/30_threads/this_thread/2.cc
View File

@ -4,9 +4,8 @@
// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
// { dg-require-cstdint "" }
// { dg-require-gthreads "" }
// { dg-require-sched-yield "" }
// Copyright (C) 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
// Copyright (C) 2008-2012 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the

4
libstdc++-v3/testsuite/30_threads/this_thread/3.cc
View File

@ -4,9 +4,9 @@
// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
// { dg-require-cstdint "" }
// { dg-require-gthreads "" }
// { dg-require-nanosleep "" }
// { dg-require-sleep "" }
// Copyright (C) 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
// Copyright (C) 2008-2012 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the

4
libstdc++-v3/testsuite/30_threads/this_thread/4.cc
View File

@ -4,9 +4,9 @@
// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
// { dg-require-cstdint "" }
// { dg-require-gthreads "" }
// { dg-require-nanosleep "" }
// { dg-require-sleep "" }
// Copyright (C) 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
// Copyright (C) 2008-2012 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the

4
libstdc++-v3/testsuite/lib/dg-options.exp
View File

@ -143,8 +143,8 @@ proc dg-require-gthreads-timed { args } {
return
}
proc dg-require-nanosleep { args } {
if { ![ check_v3_target_nanosleep ] } {
proc dg-require-sleep { args } {
if { ![ check_v3_target_sleep ] } {
upvar dg-do-what dg-do-what
set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
return

44
libstdc++-v3/testsuite/lib/libstdc++.exp
View File

@ -1352,41 +1352,43 @@ proc check_v3_target_gthreads_timed { } {
}
proc check_v3_target_nanosleep { } {
proc check_v3_target_sleep { } {
global cxxflags
global DEFAULT_CXXFLAGS
global et_nanosleep
global et_sleep
global tool
if { ![info exists et_nanosleep_target_name] } {
set et_nanosleep_target_name ""
if { ![info exists et_sleep_target_name] } {
set et_sleep_target_name ""
}
# If the target has changed since we set the cached value, clear it.
set current_target [current_target_name]
if { $current_target != $et_nanosleep_target_name } {
verbose "check_v3_target_nanosleep: `$et_nanosleep_target_name'" 2
set et_nanosleep_target_name $current_target
if [info exists et_nanosleep] {
verbose "check_v3_target_nanosleep: removing cached result" 2
unset et_nanosleep
if { $current_target != $et_sleep_target_name } {
verbose "check_v3_target_sleep: `$et_sleep_target_name'" 2
set et_sleep_target_name $current_target
if [info exists et_sleep] {
verbose "check_v3_target_sleep: removing cached result" 2
unset et_sleep
}
}
if [info exists et_nanosleep] {
verbose "check_v3_target_nanosleep: using cached result" 2
if [info exists et_sleep] {
verbose "check_v3_target_sleep: using cached result" 2
} else {
set et_nanosleep 0
set et_sleep 0
# Set up and preprocess a C++0x test program that depends
# on the nanosleep facilities to be available.
set src nanosleep[pid].cc
# Set up and preprocess a C++11 test program that depends
# on the sleep facilities to be available.
set src sleep[pid].cc
set f [open $src "w"]
puts $f "#include <bits/c++config.h>"
puts $f "#ifndef _GLIBCXX_USE_NANOSLEEP"
puts $f "# error No nanosleep"
puts $f "# ifndef _GLIBCXX_HAVE_SLEEP"
puts $f "# error No nanosleep or sleep"
puts $f "# endif"
puts $f "#endif"
close $f
@ -1399,13 +1401,13 @@ proc check_v3_target_nanosleep { } {
if [string match "" $lines] {
# No error message, preprocessing succeeded.
set et_nanosleep 1
set et_sleep 1
} else {
verbose "check_v3_target_nanosleep: compilation failed" 2
verbose "check_v3_target_sleep: compilation failed" 2
}
}
verbose "check_v3_target_nanosleep: $et_nanosleep" 2
return $et_nanosleep
verbose "check_v3_target_sleep: $et_sleep" 2
return $et_sleep
}
proc check_v3_target_sched_yield { } {