acinclude.m4 ([GLIBCXX_ENABLE_CLOCK_GETTIME], [...]): Remove.

2009-01-15  Chris Fairles  <cfairles@gcc.gnu.org>
	    Paolo Carlini  <paolo.carlini@oracle.com>

	* acinclude.m4 ([GLIBCXX_ENABLE_CLOCK_GETTIME],
	[GLIBCXX_CHECK_NANOSLEEP]): Remove.
	([GLIBCXX_ENABLE_LIBSTDCXX_TIME]): Add.
	* configure.ac: Adjust.
	* doc/xml/manual/configure.xml: Update.
	* testsuite/lib/libstdc++.exp (check_v3_target_sched_yield): Add.
	* testsuite/lib/dg-options.exp (dg-require-sched-yield): Add.
	* testsuite/30_threads/thread/this_thread/2.cc: Use the latter.
	* configure: Regenerate.
	* config.h.in: Likewise.

	* src/thread.cc (thread::thread(), thread::~thread, thread::get_id,
	thread::joinable, thread::swap, this_thread::get_id,
	this_thread::yield): Define inline...
	* include/std/thread: ... here.
	* config/abi/pre/gnu.ver: Adjust.

Co-Authored-By: Paolo Carlini <paolo.carlini@oracle.com>

From-SVN: r143397

3 files changed, 72 insertions, 3 deletions

diff --git a/libstdc++-v3/testsuite/30_threads/thread/this_thread/2.cc b/libstdc++-v3/testsuite/30_threads/thread/this_thread/2.cc
index cf60c2c..a632a45 100644
--- a/libstdc++-v3/testsuite/30_threads/thread/this_thread/2.cc
+++ b/libstdc++-v3/testsuite/30_threads/thread/this_thread/2.cc
@@ -4,8 +4,9 @@
 // { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }
 // { dg-require-cstdint "" }
 // { dg-require-gthreads "" }
+// { dg-require-sched-yield "" }
 
-// Copyright (C) 2008 Free Software Foundation, Inc.
+// Copyright (C) 2008, 2009 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
diff --git a/libstdc++-v3/testsuite/lib/dg-options.exp b/libstdc++-v3/testsuite/lib/dg-options.exp
index 7807225..8270376 100644
--- a/libstdc++-v3/testsuite/lib/dg-options.exp
+++ b/libstdc++-v3/testsuite/lib/dg-options.exp
@@ -1,6 +1,7 @@
 # Handlers for additional dg-xxx keywords in tests.
 
-# Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+# Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009
+# Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -125,6 +126,15 @@ proc dg-require-nanosleep { args } {
     return
 }
 
+proc dg-require-sched-yield { args } {
+    if { ![ check_v3_target_sched_yield ] } {
+        upvar dg-do-what dg-do-what
+        set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
+        return
+    }
+    return
+}
+
 proc dg-require-string-conversions { args } {
     if { ![ check_v3_target_string_conversions ] } {
         upvar dg-do-what dg-do-what
diff --git a/libstdc++-v3/testsuite/lib/libstdc++.exp b/libstdc++-v3/testsuite/lib/libstdc++.exp
index 3b2e18b..bd01b25 100644
--- a/libstdc++-v3/testsuite/lib/libstdc++.exp
+++ b/libstdc++-v3/testsuite/lib/libstdc++.exp
@@ -1,6 +1,6 @@
 # libstdc++ "tool init file" for DejaGNU
 
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
 # Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1261,6 +1261,64 @@ proc check_v3_target_nanosleep { } {
     return $et_nanosleep
 }
 
+proc check_v3_target_sched_yield { } {
+    global cxxflags
+    global DEFAULT_CXXFLAGS
+    global et_sched_yield
+
+    global tool
+
+    if { ![info exists et_sched_yield_target_name] } {
+        set et_sched_yield_target_name ""
+    }
+
+    # If the target has changed since we set the cached value, clear it.
+    set current_target [current_target_name]
+    if { $current_target != $et_sched_yield_target_name } {
+        verbose "check_v3_target_sched_yield: `$et_sched_yield_target_name'" 2
+        set et_sched_yield_target_name $current_target
+        if [info exists et_sched_yield] {
+            verbose "check_v3_target_sched_yield: removing cached result" 2
+            unset et_sched_yield
+        }
+    }
+
+    if [info exists et_sched_yield] {
+        verbose "check_v3_target_sched_yield: using cached result" 2
+    } else {
+        set et_sched_yield 0
+
+        # Set up and compile a C++0x test program that depends
+        # on the sched_yield facility to be available.
+        set src sched_yield[pid].cc
+        set exe sched_yield[pid].exe
+
+        set f [open $src "w"]
+        puts $f "#include <bits/c++config.h>"
+        puts $f "int main()"
+        puts $f "#ifdef _GLIBCXX_USE_SCHED_YIELD"
+        puts $f "{ return 0; }"
+        puts $f "#endif"
+        close $f
+
+        set cxxflags_saved $cxxflags
+        set cxxflags "$cxxflags $DEFAULT_CXXFLAGS -Werror"
+
+        set lines [v3_target_compile $src $exe executable ""]
+        set cxxflags $cxxflags_saved
+        file delete $src
+
+        if [string match "" $lines] {
+            # No error message, compilation succeeded.
+            set et_sched_yield 1
+        } else {
+            verbose "check_v3_target_sched_yield: compilation failed" 2
+        }
+    }
+    verbose "check_v3_target_sched_yield: $et_sched_yield" 2
+    return $et_sched_yield
+}
+
 proc check_v3_target_string_conversions { } {
     global cxxflags
     global DEFAULT_CXXFLAGS