chrono: New, as per N2661.

2008-07-15  Chris Fairles  <chris.fairles@gmail.com>

        * include/std/chrono: New, as per N2661.
        * src/chrono.cc: New.
        * include/Makefile.am: Update.
        * src/Makefile.am: Likewise.
        * include/Makefile.in: Regenerate.
        * src/Makefile.in: Likewise.
        * acinclude.m4: Add tests for clock_gettime and gettimeofday that
	define _GLIBCXX_HAS_CLOCK_GETTIME and/or _GLIBCXX_HAS_GETTIMEOFDAY.
        * configure.ac: Use them.
        * configure: Regenerate.
        * config.h.in: Likewise.
        * config/abi/pre/gnu.ver: Add symbols for system_clock::now() and
        system_clock::is_monotonic.
        * testsuite/20_util/duration/cons/1.cc: New.
        * testsuite/20_util/duration/cons/2.cc: Likewise.
        * testsuite/20_util/duration/cons/1_neg.cc: Likewise.
        * testsuite/20_util/duration/requirements/explicit_instantiation/
        explicit_instantiation.cc: Likewise.
        * testsuite/20_util/duration/arithmetic/1.cc: Likewise.
        * testsuite/20_util/duration/arithmetic/2.cc: Likewise.
        * testsuite/20_util/duration/comparisons/1.cc: Likewise.
        * testsuite/20_util/time_point/requirements/explicit_instantiation/
        explicit_instantiation.cc: Likewise.
        * testsuite/20_util/time_point/1.cc: Likewise.
        * testsuite/20_util/time_point/2.cc: Likewise.
        * testsuite/20_util/time_point/3.cc: Likewise.
        * testsuite/20_util/clocks/1.cc: Likewise.
        * testsuite/17_intro/headers/c++200x/all_multiple_inclusion.cc: Add
        missing headers.
        * testsuite/17_intro/headers/c++200x/all.cc: Likewise.
        * include/precompiled/stdc++.h: Likewise and remove <date_time>.
        * doc/doxygen/user.cfg.in: Likewise.

From-SVN: r137858

3 files changed, 93 insertions, 5 deletions

diff --git a/libstdc++-v3/src/Makefile.am b/libstdc++-v3/src/Makefile.am
index 8d2cbf5..d41f3eb 100644
--- a/libstdc++-v3/src/Makefile.am
+++ b/libstdc++-v3/src/Makefile.am
@@ -186,6 +186,7 @@ sources = \
 	wstring-inst.cc \
 	mutex.cc \
 	condition_variable.cc \
+	chrono.cc \
 	${host_sources} \
 	${host_sources_extra} 
 
@@ -272,6 +273,11 @@ atomic.lo: atomic.cc
 atomic.o: atomic.cc
 	$(CXXCOMPILE) -x c++ -std=gnu++0x -c $<
 
+chrono.lo: chrono.cc
+	$(LTCXXCOMPILE) -std=gnu++0x -c $<
+chrono.o: chrono.cc
+	$(CXXCOMPILE) -std=gnu++0x -c $<
+
 if GLIBCXX_LDBL_COMPAT
 # Use special rules for compatibility-ldbl.cc compilation, as we need to
 # pass -mlong-double-64.
diff --git a/libstdc++-v3/src/Makefile.in b/libstdc++-v3/src/Makefile.in
index f0e9897..27c9b70 100644
--- a/libstdc++-v3/src/Makefile.in
+++ b/libstdc++-v3/src/Makefile.in
@@ -84,10 +84,10 @@ am__libstdc___la_SOURCES_DIST = atomic.cc bitmap_allocator.cc \
 	istream-inst.cc istream.cc locale-inst.cc misc-inst.cc \
 	ostream-inst.cc sstream-inst.cc streambuf-inst.cc streambuf.cc \
 	string-inst.cc valarray-inst.cc wlocale-inst.cc \
-	wstring-inst.cc mutex.cc condition_variable.cc atomicity.cc \
-	codecvt_members.cc collate_members.cc ctype_members.cc \
-	messages_members.cc monetary_members.cc numeric_members.cc \
-	time_members.cc basic_file.cc c++locale.cc \
+	wstring-inst.cc mutex.cc condition_variable.cc chrono.cc \
+	atomicity.cc codecvt_members.cc collate_members.cc \
+	ctype_members.cc messages_members.cc monetary_members.cc \
+	numeric_members.cc time_members.cc basic_file.cc c++locale.cc \
 	compatibility-ldbl.cc parallel_list.cc parallel_settings.cc
 am__objects_1 = atomicity.lo codecvt_members.lo collate_members.lo \
 	ctype_members.lo messages_members.lo monetary_members.lo \
@@ -109,7 +109,7 @@ am__objects_5 = atomic.lo bitmap_allocator.lo pool_allocator.lo \
 	istream-inst.lo istream.lo locale-inst.lo misc-inst.lo \
 	ostream-inst.lo sstream-inst.lo streambuf-inst.lo streambuf.lo \
 	string-inst.lo valarray-inst.lo wlocale-inst.lo \
-	wstring-inst.lo mutex.lo condition_variable.lo \
+	wstring-inst.lo mutex.lo condition_variable.lo chrono.lo \
 	$(am__objects_1) $(am__objects_4)
 am_libstdc___la_OBJECTS = $(am__objects_5)
 libstdc___la_OBJECTS = $(am_libstdc___la_OBJECTS)
@@ -422,6 +422,7 @@ sources = \
 	wstring-inst.cc \
 	mutex.cc \
 	condition_variable.cc \
+	chrono.cc \
 	${host_sources} \
 	${host_sources_extra} 
 
@@ -866,6 +867,11 @@ atomic.lo: atomic.cc
 atomic.o: atomic.cc
 	$(CXXCOMPILE) -x c++ -std=gnu++0x -c $<
 
+chrono.lo: chrono.cc
+	$(LTCXXCOMPILE) -std=gnu++0x -c $<
+chrono.o: chrono.cc
+	$(CXXCOMPILE) -std=gnu++0x -c $<
+
 # Use special rules for compatibility-ldbl.cc compilation, as we need to
 # pass -mlong-double-64.
 @GLIBCXX_LDBL_COMPAT_TRUE@compatibility-ldbl.lo: compatibility-ldbl.cc
diff --git a/libstdc++-v3/src/chrono.cc b/libstdc++-v3/src/chrono.cc
new file mode 100644
index 0000000..88fb4c1
--- /dev/null
+++ b/libstdc++-v3/src/chrono.cc
@@ -0,0 +1,76 @@
+// chrono -*- C++ -*-
+
+// Copyright (C) 2008 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
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+#include <chrono>
+
+#ifdef _GLIBCXX_USE_C99_STDINT_TR1
+
+// conditional inclusion of sys/time.h for gettimeofday
+#if !defined(_GLIBCXX_USE_CLOCK_MONOTONIC) && \
+    !defined(_GLIBCXX_USE_CLOCK_REALTIME) && \
+     defined(_GLIBCXX_USE_GETTIMEOFDAY)
+#include <sys/time.h>
+#endif
+
+namespace std
+{
+  namespace chrono
+  {
+    const bool system_clock::is_monotonic;
+
+    system_clock::time_point
+    system_clock::now()
+    {
+#ifdef _GLIBCXX_USE_CLOCK_MONOTONIC
+        timespec tp;
+        // -EINVAL, -EFAULT
+        clock_gettime(CLOCK_MONOTONIC, &tp);
+        return time_point(duration(chrono::seconds(tp.tv_sec)
+                                   + chrono::nanoseconds(tp.tv_nsec)));
+#elif defined(_GLIBCXX_USE_CLOCK_REALTIME)
+        timespec tp;
+        // -EINVAL, -EFAULT
+        clock_gettime(CLOCK_REALTIME, &tp);
+        return time_point(duration(chrono::seconds(tp.tv_sec)
+                                   + chrono::nanoseconds(tp.tv_nsec)));
+#elif defined(_GLIBCXX_USE_GETTIMEOFDAY)
+        timeval tv;
+        // EINVAL, EFAULT
+        gettimeofday(&tv, NULL);
+        return time_point(duration(chrono::seconds(tv.tv_sec)
+                                   + chrono::microseconds(tv.tv_usec)));
+#else
+        std::time_t __sec = std::time(0);
+        return system_clock::from_time_t(__sec);
+#endif
+    }
+  }
+}
+
+#endif // _GLIBCXX_USE_C99_STDINT_TR1