Commit Graph

82 Commits

Author SHA1 Message Date
Pauli Nieminen ed3cb49703 Support exception propagation without lock-free atomic int
2017-01-04  Pauli Nieminen  <suokkos@gmail.com>
	    Jonathan Wakely  <jwakely@redhat.com>

	PR libstdc++/64735
	* acinclude.m4 (GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER): Define.
	* config.h.in: Regenerate.
	* config/abi/pre/gnu.ver [HAVE_EXCEPTION_PTR_SINCE_GCC46]
	(GLIBCXX_3.4.15, GLIBCXX_3.4.21, CXXABI_1.3.3, CXXABI_1.3.5): Make
	exports for exception_ptr, nested_exception, and future conditional.
	[HAVE_EXCEPTION_PTR_SINCE_GCC46] (GLIBCXX_3.4.23, CXXABI_1.3.11): Add
	exports for exception_ptr, nested_exception, and future conditional.
	* configure: Regenerate.
	* configure.ac: Use GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER.
	* include/std/future: Remove check for ATOMIC_INT_LOCK_FREE
	* libsupc++/eh_atomics.h: New file for internal use only.
	(__eh_atomic_inc, __eh_atomic_dec): New.
	* libsupc++/eh_ptr.cc (exception_ptr::_M_addref)
	(exception_ptr::_M_release) (__gxx_dependent_exception_cleanup)
	(rethrow_exception): Use eh_atomics.h reference counting helpers.
	* libsupc++/eh_throw.cc (__gxx_exception_cleanup): Likewise.
	* libsupc++/eh_tm.cc (free_any_cxa_exception): Likewise.
	* libsupc++/exception: Remove check for ATOMIC_INT_LOCK_FREE.
	* libsupc++/exception_ptr.h: Likewise.
	* libsupc++/guard.cc: Include header for ATOMIC_INT_LOCK_FREE macro.
	* libsupc++/nested_exception.cc: Remove check for
	ATOMIC_INT_LOCK_FREE.
	* libsupc++/nested_exception.h: Likewise.
	* src/c++11/future.cc: Likewise.
	* testsuite/18_support/exception_ptr/*: Remove atomic builtins checks.
	* testsuite/18_support/nested_exception/*: Likewise.
	* testsuite/30_threads/async/*: Likewise.
	* testsuite/30_threads/future/*: Likewise.
	* testsuite/30_threads/headers/future/types_std_c++0x.cc: Likewise.
	* testsuite/30_threads/packaged_task/*: Likewise.
	* testsuite/30_threads/promise/*: Likewise.
	* testsuite/30_threads/shared_future/*: Likewise.

Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>

From-SVN: r244051
2017-01-04 10:54:59 +00:00
Jakub Jelinek cbe34bb5ed Update copyright years.
From-SVN: r243994
2017-01-01 13:07:43 +01:00
Jonathan Wakely 9c52cc0189 Make std::future::share() noexcept (LWG 2556)
* include/std/future (future::share(), future<R&>::share())
	(future<void>::share()): Add noexcept, as per LWG 2556.

From-SVN: r242374
2016-11-14 03:44:53 +00:00
Jonathan Wakely 13908b4404 * include/std/future (future_error): Fix public typo to private.
From-SVN: r242340
2016-11-12 20:28:50 +00:00
Jonathan Wakely 330cc73d98 Add std::future_error constructor from future_errc
* include/std/future (future_error): Make existing constructor
	private and add constructor from future_errc.

From-SVN: r242334
2016-11-12 03:40:24 +00:00
Jonathan Wakely c05986b936 Split <functional> into smaller pieces
* include/Makefile.am: Add <bits/refwrap.h> and <bits/std_function.h>.
	Order alphabetically.
	* include/Makefile.in: Regenerate.
	* include/bits/refwrap.h: New header.
	(_Maybe_get_result_type,_Weak_result_type_impl, _Weak_result_type)
	(_Reference_wrapper_base_impl, _Reference_wrapper_base)
	(reference_wrapper, ref, cref): Move here from <functional>.
	* include/bits/shared_ptr_base.h: Include <bits/refwrap.h> and
	<bits/stl_function.h> instead of <functional>.
	* include/bits/std_function.h: New header.
	(_Maybe_unary_or_binary_function, bad_function_call)
	(__is_location_invariant, _Nocopy_types, _Any_data)
	(_Simple_type_wrapper, _Function_base, _Function_handler, function):
	Move here from <functional>.
	* include/bits/unique_ptr.h: Include <bits/stl_function.h>.
	* include/std/functional: Include new headers and move components to
	them.
	* include/std/future: Include <bits/std_function.h> instead of
	<functional>.
	* include/std/mutex: Likewise.
	* include/std/regex: Likewise.
	* src/c++11/compatibility-thread-c++0x.cc: Include <functional>.
	* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
	* testsuite/20_util/default_delete/void_neg.cc: Likewise.
	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Adjust dg-error
	lines.
	* testsuite/20_util/unique_ptr/cons/cv_qual_neg.cc: Likewise.
	* testsuite/30_threads/packaged_task/49668.cc: Include <functional>.

From-SVN: r241410
2016-10-21 16:32:25 +01:00
Jonathan Wakely a2284544a1 PR77998 Remove std:🧵:_Invoker::result_type
PR libstdc++/77998
	* include/std/future (__future_base::_Deferred_state)
	(__future_base::_Async_state_impl): Use decltype to deduce return
	type, instead of _Invoker::result_type.
	* include/std/thread (thread::_Invoker::operator()): Likewise.
	(thread::_Invoker::result_type): Remove.

From-SVN: r241236
2016-10-17 13:23:09 +01:00
Jonathan Wakely d67dd0be94 Avoid #include <functional> in other headers
* include/bits/shared_ptr_base.h: Include <functional>.
	[!__cpp_rtti]: Do not include <typeinfo>.
	* include/experimental/array: Do not include <functional>.
	* include/experimental/memory: Include <bits/functional_hash.h>
	instead of <functional>.
	* include/experimental/propagate_const: Include <bits/stl_function.h>,
	<bits/functional_hash.h>, and <bits/move.h> instead of <functional>.
	* include/experimental/tuple: Do not include <functional>.
	* include/std/future: Include <functional>.
	* include/std/memory: Do not include <functional>.
	* include/std/mutex: [_GLIBCXX_HAVE_TLS]: Likewise.
	* testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add
	missing includes.
	* testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise.
	* testsuite/20_util/specialized_algorithms/memory_management_tools/
	1.cc: Likewise.
	* testsuite/30_threads/call_once/60497.cc: Likewise.
	* testsuite/30_threads/lock/2.cc: Likewise.
	* testsuite/30_threads/thread/native_handle/cancel.cc: Likewise.
	* testsuite/experimental/algorithm/sample.cc: Likewise.
	* testsuite/experimental/array/make_array.cc: Likewise.
	* testsuite/experimental/array/neg.cc: Likewise. Adjust dg-error line.
	* testsuite/experimental/propagate_const/assignment/move_neg.cc:
	Adjust dg-error lines.
	* testsuite/experimental/propagate_const/cons/move_neg.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements2.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements3.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements4.cc: Likewise.
	* testsuite/experimental/propagate_const/requirements5.cc: Likewise.

From-SVN: r241131
2016-10-13 17:59:19 +01:00
Jonathan Wakely 5579170b40 Replace __bind_simple with std:🧵:__make_invoker
* include/std/functional (_Bind_simple, _Bind_simple_helper)
	(__bind_simple): Remove.
	* include/std/future: Include <bits/invoke.h> instead of <functional>.
	(__future_base::_Task_state::_M_run)
	(__future_base::_Task_state::_M_run_delayed): Use lambda expressions
	instead of __bind_simple.
	(__future_base::_Task_state::_S_maybe_wrap_ref): Remove.
	(async): Use thread::__make_invoker instead of __bind_simple.
	* include/std/thread: Include <tuple> and <bits/invoke.h> instead of
	<functional>.
	(thread::_Invoker, thread::__make_invoker): Define helpers to do
	INVOKE(DECAY_COPY(f), DECAY_COPY(args)...).

From-SVN: r241093
2016-10-13 11:37:13 +01:00
Jonathan Wakely 33ac58d529 Remove trailing whitespace from libstdc++ headers
* include/std/array: Remove trailing whitespace.
	* include/std/atomic: Likewise.
	* include/std/bitset: Likewise.
	* include/std/chrono: Likewise.
	* include/std/complex: Likewise.
	* include/std/condition_variable: Likewise.
	* include/std/fstream: Likewise.
	* include/std/functional: Likewise.
	* include/std/future: Likewise.
	* include/std/iomanip: Likewise.
	* include/std/iosfwd: Likewise.
	* include/std/istream: Likewise.
	* include/std/limits: Likewise.
	* include/std/ratio: Likewise.
	* include/std/scoped_allocator: Likewise.
	* include/std/sstream: Likewise.
	* include/std/stdexcept: Likewise.
	* include/std/string: Likewise.
	* include/std/system_error: Likewise.
	* include/std/thread: Likewise.
	* include/std/tuple: Likewise.
	* include/std/type_traits: Likewise.
	* include/std/utility: Likewise.
	* include/std/valarray: Likewise.
	* include/std/vector: Likewise.

From-SVN: r237528
2016-06-16 14:47:35 +01:00
Jonathan Wakely f885fa898f Use std::addressof in insert iterators, allocators and promises
PR libstdc++/69105
	PR libstdc++/69106
	PR libstdc++/69114
	* include/bits/stl_iterator.h (back_insert_iterator,
	front_insert_iterator, insert_iterator): Use __addressof (LWG 2324).
	* include/bits/uses_allocator.h (__use_alloc): Use __addressof.
	* include/std/future (__future::base::_State_baseV2::__setter):
	Likewise.
	* include/std/scoped_allocator (__outermost): Likewise.
	* testsuite/20_util/scoped_allocator/69114.cc: New.
	* testsuite/20_util/uses_allocator/69114.cc: New.
	* testsuite/30_threads/promise/69106.cc: New.

From-SVN: r232129
2016-01-07 15:01:33 +00:00
Jakub Jelinek 818ab71a41 Update copyright years.
From-SVN: r232055
2016-01-04 15:30:50 +01:00
Jonathan Wakely 93e954005f Implement C++17 std::invoke and LWG DR 2219
* include/std/functional (__invoke_impl): New overloads.
	(__invoke): Replace with a single function calling __invoke_impl.
	(invoke): Add C++17 std::invoke.
	(reference_wrapper::operator()): Qualify call to __invoke.
	(_Mem_fn_traits_base, _Mem_fn_traits): Remove unused typedefs.
	(_Mem_fn_base): Remove unused typedefs and implement call operator in
	terms of __invoke.
	* include/std/future (__future_base::_Async_state_commonV2): Do not
	pass reference_wrapper as object argument to call_once.
	* include/std/type_traits (result_of): Define nested __invoke_type.
	Handle reference_wrapper as per LWG 2219.
	* testsuite/20_util/bind/ref_neg.cc: Adjust dg-error directives.
	* testsuite/20_util/function_objects/mem_fn/55463.cc: Remove tests
	using member functions of reference_wrapper.

From-SVN: r229290
2015-10-25 01:00:54 +01:00
Jonathan Wakely 6fbd598400 Return deferred future if thread cannot be run
* include/std/future (async): Use deferred function on exception.
	* testsuite/30_threads/async/except.cc: New.

From-SVN: r229289
2015-10-24 22:36:50 +01:00
Jonathan Wakely 75eb64433e future (__async_result_of): New alias template.
* include/std/future (__async_result_of): New alias template.
	(async): Use __async_result_of to pass decayed types to result_of.
	* testsuite/30_threads/async/lwg2021.cc: New.
	* doc/xml/manual/intro.xml: Document LWG 2021 status.

From-SVN: r223866
2015-05-29 14:44:52 +01:00
Jonathan Wakely e6508eaf69 future (packaged_task(allocator_arg_t, const A&, F&&): Remove explicit (LWG 2407).
* include/std/future (packaged_task(allocator_arg_t, const A&, F&&):
	Remove explicit (LWG 2407).

From-SVN: r223161
2015-05-13 14:54:40 +01:00
Jonathan Wakely f6341d8d09 re PR libstdc++/51617 ([C++0x] async(f) isn't.)
PR libstdc++/51617
	* include/std/future (async): Change default policy to launch::async.

From-SVN: r222793
2015-05-05 02:56:47 +01:00
Jonathan Wakely 664e99eac4 future (future_error(error_code)): Construct base class with error_code's message.
* include/std/future (future_error(error_code)): Construct base
	class with error_code's message.
	* src/c++11/future.cc (future_error::what()): Do not call c_str() on
	temporary string.

From-SVN: r221236
2015-03-06 12:31:43 +00:00
Torvald Riegel eae801bacc libstdc++: Optimize synchronization in std::future if futexes are available.
* src/c++11/futex.cc: New file.
	* include/bits/atomic_futex.h: New file.
	* include/std/future (__future_base::_State_baseV2): Use
	atomic_futex_unsigned instead of mutex+condvar.
	* src/c++11/futex.cc: Likewise.
	* include/Makefile.am: Add atomic_futex.h.
	* include/Makefile.in: Likewise.
	* src/c++11/Makefile.am: Add futex.cc.
	* src/c++11/Makefile.in: Likewise.

From-SVN: r219770
2015-01-16 19:50:43 +00:00
Jakub Jelinek 5624e564d2 Update copyright years.
From-SVN: r219188
2015-01-05 13:33:28 +01:00
Jonathan Wakely 9131b50960 future (__future_base::_Setter::operator(), [...]): Make call operators const.
* include/std/future (__future_base::_Setter::operator(),
	__future_base::_Task_setter::operator()): Make call operators const.

From-SVN: r218553
2014-12-10 00:39:37 +00:00
Jonathan Wakely 103265d611 re PR libstdc++/64168 (FAIL: 30_threads/async/sync.cc execution test)
PR libstdc++/64168
	* include/std/future (_Deferred_state::_M_has_deferred): Fix return.

From-SVN: r218321
2014-12-03 16:09:21 +00:00
Jonathan Wakely 9db7c9316e Define *_at_thread_exit() functions.
* config/abi/pre/gnu.ver: Add new exports.
	* include/std/condition_variable (notify_all_at_thread_exit): Declare.
	(__at_thread_exit_elt): New base class.
	* include/std/future: Add comments documenting the implementation.
	(__future_base::_State_baseV2::_State_baseV2()): Use brace-or-equal
	initializers and define constructor as defaulted.
	(__future_base::_State_baseV2::_M_ready): Replace member function
	with member variable.
	(__future_base::_State_baseV2::_M_set_result): Set _M_ready.
	(__future_base::_State_baseV2::_M_set_delayed_result): Define.
	(__future_base::_State_baseV2::_M_break_promise): Set _M_ready.
	(__future_base::_State_baseV2::_Make_ready): New helper class.
	(__future_base::_Deferred_state::_M_has_deferred): Remove requirement
	for caller to own mutex.
	(__future_base::_Async_state_impl::~_Async_state_impl): Call join
	directly.
	(__future_base::_Task_state_base::_M_run): Take arguments by
	reference.
	(__future_base::_Task_state_base::_M_run_delayed): Declare new pure
	virtual function.
	(__future_base::_Task_state::_M_run_delayed): Define override.
	(promise::set_value_at_thread_exit): Define.
	(promise::set_exception_at_thread_exit): Define.
	(packaged_task::make_ready_at_thread_exit): Define.
	* src/c++11/condition_variable.cc (notify_all_at_thread_exit): Define.
	* src/c++11/future.cc
	(__future_base::_State_baseV2::_Make_ready::_M_set): Define.
	* testsuite/30_threads/condition_variable/members/3.cc: New.
	* testsuite/30_threads/packaged_task/members/at_thread_exit.cc: New.
	* testsuite/30_threads/promise/members/at_thread_exit.cc: New.

From-SVN: r218255
2014-12-02 01:51:25 +00:00
Jonathan Wakely db0b7db338 future (__location_invariant): Move specializations after preprocessor condition.
* include/std/future (__location_invariant): Move specializations
	after preprocessor condition.

From-SVN: r213744
2014-08-07 23:54:53 +01:00
Jonathan Wakely 4e48c10968 future (_State_baseV2::_M_set_result): Pass pointers to _M_do_set.
* include/std/future (_State_baseV2::_M_set_result): Pass pointers to
	_M_do_set.
	(_State_baseV2::_M_do_set): Change parameters to pointers.
	(_State_baseV2::_Setter): Change _M_arg from reference to pointer.
	(_State_baseV2::__setter): Initialize _Setter with pointers.
	(_State_baseV2::__setter(promise<void>*)): Remove overload.
	(promise::set_value, promise::set_exception): Pass setter directly
	to _M_set_result.
	(_State_baseV2::_Task_setter): Add template parameter for callable
	type and replace std::function member with pointer to that type.
	Change _M_result member from reference to pointer.
	(_State_baseV2::_S_task_setter): Change parameter to lvalue reference
	and initialize _Task_setter with pointers.
	(__location_invariant): Specialize for _Setter and _Task_setter.

From-SVN: r213737
2014-08-07 21:13:52 +01:00
Jonathan Wakely b925bf594a Makefile.am: Add new header.
* include/Makefile.am: Add new header.
	* include/Makefile.in: Regenerate.
	* include/bits/allocated_ptr.h (__allocated_ptr, __allocate_guarded):
	New RAII utilities for working with allocators.
	* include/bits/shared_ptr_base.h (_Sp_counted_deleter): Define
	__allocator_type typedef and use new __allocated_ptr type.
	(_Sp_counted_ptr_inplace): Likewise.
	(__shared_count::__shared_count, __shared_ptr::__shared_ptr): Use
	__allocate_guarded to to simplify exception handling.
	* include/experimental/any (any::_Manager_alloc::_S_alloc): Likewise.
	* include/std/future (_Result_alloc::_M_destroy): Likewise.
	(_Result_alloc::_S_allocate_result): Likewise.
	* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust line number.
	* testsuite/20_util/shared_ptr/cons/void_neg.cc: Likewise.
	* testsuite/20_util/shared_ptr/creation/no_rtti.cc: New.
	* testsuite/20_util/shared_ptr/creation/alloc.cc: Test allocator
	with fancy pointer.
	* testsuite/30_threads/promise/cons/alloc.cc: Likewise.

From-SVN: r211996
2014-06-25 21:54:46 +01:00
Jonathan Wakely 315eb4bb08 condition_variable (condition_variable_any::_Unlock): Do not swallow __forced_unwind.
* include/std/condition_variable (condition_variable_any::_Unlock): Do
	not swallow __forced_unwind.
	* include/std/future (__future_base::_Task_setter): Likewise.
	(__future_base::_Async_state_impl): Turn __forced_unwind into broken
	promise and rethrow.
	* include/std/mutex (try_lock): Likewise.
	* testsuite/30_threads/async/forced_unwind.cc: New.
	* testsuite/30_threads/packaged_task/forced_unwind.cc: New.

From-SVN: r211138
2014-06-02 16:45:09 +01:00
Jonathan Wakely a0eaa08ceb re PR libstdc++/60966 (std::call_once sometime hangs)
PR libstdc++/60966
	* include/std/future (__future_base::_State_baseV2::_M_set_result):
	Pass lock into _M_do_set and hold it until the function returns.
	Signal condition variable after call_once completes.
	(__future_base::_State_baseV2::_M_do_set): Use lock argument. Do not
	signal here.
	* testsuite/30_threads/promise/60966.cc: New.

From-SVN: r210556
2014-05-17 13:58:46 +01:00
Jonathan Wakely f7e68d0804 re PR libstdc++/60564 ([C++11] The std::packaged_task constructor taking a reference to a functor does not copy its argument.)
PR libstdc++/60564
	* include/std/future (__future_base::_Task_state<>): Change
	constructors to template functions using perfect forwarding.
	(__create_task_state): Use decayed type as stored task.
	(packaged_task::packaged_task(_Fn&&)): Forward instead of moving.
	* testsuite/30_threads/packaged_task/60564.cc: New.

From-SVN: r208656
2014-03-18 16:31:38 +00:00
Richard Sandiford aa118a03c4 Update copyright years in libstdc++-v3/
From-SVN: r206301
2014-01-02 22:30:10 +00:00
Jonathan Wakely f2f08be7ea re PR libstdc++/49204 ([C++0x] remaining issues in <future>)
PR libstdc++/49204
	* include/std/future (__future_base::_State_base): Rename to
	__future_base::_State_baseV2.
	(__future_base::_State_baseV2::~_State_baseV2): Define as defaulted.
	(__future_base::_State_baseV2::_M_run_deferred): Rename to
	_M_complete_async.
	(__future_base::_State_baseV2::_M_has_deferred): Add new virtual.
	(__future_base::_State_baseV2::wait_for): Call _M_has_deferred() to
	test for a deferred function, or call _M_complete_async() to join an
	async thread that has made the shared state ready.
	(__future_base::_State_baseV2::wait_until): Likewise.
	(__future_base::_Async_state_common): Rename to _Async_state_commonV2.
	(__future_base::_Async_state_commonV2::_M_run_deferred): Rename to
	_M_complete_async.
	* src/c++11/compatibility-thread-c++0x.cc (__future_base::_State_base):
	Export old definition.
	(__future_base::_Async_state_common): Likewise.
	* src/c++11/future.cc (__future_base::_State_base::~_State_base):
	Remove.
	* doc/xml/manual/status_cxx2011.xml: Update status.
	* testsuite/30_threads/async/async.cc: Test future_status::timeout
	and future_status::ready.
	* testsuite/30_threads/async/sync.cc: Test future_status::deferred.

From-SVN: r205144
2013-11-20 20:59:19 +00:00
Jonathan Wakely ec98d01014 re PR libstdc++/56905 ([C++11][DR 1130] std::copy_exception should be removed or no longer be used)
PR libstdc++/56905
	* libsupc++/exception_ptr.h (copy_exception): Deprecate and
	move implementation to make_exception_ptr.
	* include/std/future (_State_base::_M_break_promise): Replace
	copy_exception with make_exception_ptr.
	* testsuite/18_support/exception_ptr/move.cc: Likewise.
	* testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise.
	* testsuite/30_threads/future/members/get2.cc: Likewise.
	* testsuite/30_threads/promise/members/set_exception.cc: Likewise.
	* testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
	* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
	* testsuite/30_threads/shared_future/members/get2.cc: Likewise.

From-SVN: r198265
2013-04-24 23:00:16 +01:00
Jonathan Wakely f2e2de5f85 Makefile.am: Add ext/aligned_buffer.h
* include/Makefile.am: Add ext/aligned_buffer.h
	* include/Makefile.in: Regenerate.
	* include/ext/aligned_buffer.h: New.
	* include/std/future (_Result): Use __aligned_buffer.
	* include/bits/forward_list.h (_Fwd_list_node): Likewise.
	* include/bits/shared_ptr_base.h (_Sp_counted_ptr_inplace): Likewise.
	* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust dg-error line
	number.

From-SVN: r197554
2013-04-07 17:44:40 +01:00
Jonathan Wakely aaad548e18 re PR libstdc++/56492 (std::packaged_task requires CopyConstructible stored task)
PR libstdc++/56492
	* include/std/future (__future_base::_Result): Add result_type
	typedef.
	(__future_base::_S_allocate_result): Overload for std::allocator.
	(__future_base::_Task_setter): Use _Result::result_type instead of
	deducing the type from the task.
	(__future_base::_Task_state): Store allocator to allow shared state
	to be reset.  Replace std::function with member of target object type
	accessed via ...
	(__future_base::_Task_state_base): New abstract base class.
	(__future_base::_Task_state_base::_M_run): New virtual function to
	invoke type-erased target object.
	(__future_base::_Task_state_base::_M_reset): New virtual function to
	create new shared_state using same target object and allocator.
	(__future_base::__create_task_state): Allocate a new _Task_state.
	(packaged_task::packaged_task): Use __create_task_state.
	(packaged_task::reset): Use _Task_state_base::_M_reset.
	* testsuite/30_threads/packaged_task/cons/56492.cc: New.

From-SVN: r196695
2013-03-16 02:48:06 +00:00
Jonathan Wakely c93fa3ca7e re PR libstdc++/55861 ([C++11] `std::shared_future::get' is not const-qualified)
PR libstdc++/55861
	* include/std/future (_State_base::_S_check(const shared_ptr<T>&)):
	Fix return type.
	(__basic_future::_M_get_result()): Const qualify.
	(shared_future::get()): Likewise.
	* testsuite/30_threads/shared_future/members/get.cc: Use const
	objects.

From-SVN: r195314
2013-01-19 23:42:55 +00:00
Jonathan Wakely 92b8bccecb * include/std/future (__async_sfinae_helper): Remove.
From-SVN: r194567
2012-12-17 21:30:51 +00:00
Jonathan Wakely 1b5dc776ca stl_algo.h (reverse_copy): Update comment per DR 2074.
* include/bits/stl_algo.h (reverse_copy): Update comment per DR 2074.
	* include/bits/unordered_map.h: Apply DR 2005 resolution.
	* doc/xml/manual/status_cxx2011.xml: Update per DR 2048.
	* include/bits/allocator.h (allocator): Apply DR 2103 resolution.
	* include/ext/array_allocator.h: Likewise.
	* include/ext/bitmap_allocator.h: Likewise.
	* include/ext/malloc_allocator.h: Likewise.
	* include/ext/mt_allocator.h: Likewise.
	* include/ext/new_allocator.h: Likewise.
	* include/ext/pool_allocator.h: Likewise.
	* include/ext/throw_allocator.h: Likewise.
	* include/ext/alloc_traits.h (__allocator_always_compares_equal): Add
	additional specializations.
	* include/std/functional: Add comment about DR resolution.
	* include/std/future: Likewise.
	* include/std/scoped_allocator: Likewise.
	* include/std/thread: Likewise.
	* testsuite/20_util/allocator/requirements/typedefs.cc: New.
	* testsuite/20_util/bind/ref_neg.cc: Adjust dg-error line numbers.

From-SVN: r193638
2012-11-19 22:28:00 +00:00
Jonathan Wakely 0ad9f93083 future (atomic_future): Remove declaration of non-standard name.
* include/std/future (atomic_future): Remove declaration of
	non-standard name.

From-SVN: r193457
2012-11-12 23:00:41 +00:00
Jason Merrill 734f50238f * many: Replace uses of __GXX_EXPERIMENTAL_CXX0X__ with __cplusplus.
From-SVN: r193392
2012-11-10 12:27:22 -05:00
Jonathan Wakely 3dd808fe94 re PR libstdc++/54297 ([C++11] Segmentation fault with std::async and released shared state)
PR libstdc++/54297
	* src/c++11/future.cc (~_Async_state_common): Move to...
	* src/c++11/compatibility-thread-c++0x.cc (~_Async_state_common):
	Here.
	(_GLIBCXX_ABI_COMPAT_ASYNC): Rename to _GLIBCXX_ASYNC_ABI_COMPAT.
	* include/std/future (_GLIBCXX_ABI_COMPAT_ASYNC): Likewise.

From-SVN: r190685
2012-08-26 14:49:44 +01:00
Jonathan Wakely 277f43d2d0 re PR libstdc++/54297 ([C++11] Segmentation fault with std::async and released shared state)
PR libstdc++/54297
	* include/std/future (~_Async_state_impl): Join thread before
	derived class members are destroyed.
	(~_Async_state_common): Only define non-trivial destructor when
	included from future.cc for ABI compatibility reasons.
	* src/c++11/future.cc (_GLIBCXX_ABI_COMPAT_ASYNC): Define.
	* testsuite/30_threads/async/54297.cc: New.

From-SVN: r190672
2012-08-26 00:01:40 +01:00
Jonathan Wakely 6e48db73ed memory: Include auto_ptr.h later.
* include/std/memory: Include auto_ptr.h later.
	* include/bits/shared_ptr.h (shared_ptr(auto_ptr<_Up>&&): Remove
	definition.
	* include/bits/shared_ptr_base.h (__shared_ptr(auto_ptr<_Up>&&):
	Likewise.
	* include/bits/unique_ptr.h (unique_ptr(auto_ptr<_Up>&&): Likewise.
	* include/backward/auto_ptr.h (unique_ptr(auto_ptr<_Up>&&): Define.
	(shared_ptr(auto_ptr<_Up>&&, __shared_ptr(auto_ptr<_Up>&&): Likewise.
	* include/std/future: Reduce header dependencies.
	* testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line
	numbers.
	* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Likewise.
	* testsuite/20_util/unique_ptr/assign/48635_neg.cc: Likewise.

From-SVN: r190109
2012-08-03 01:27:48 +01:00
Jonathan Wakely be38506d7c re PR libstdc++/52104 (go1 fails to run on Solaris 10/11 x86 with with gld)
PR libstdc++/52104
	* include/std/future (__future_base::_Async_state_common): Define
	destructor inline for targets without TLS.
	* src/c++11/future.cc (__future_base::_Async_state_common): Only
	define destructor for TLS targets.

From-SVN: r183920
2012-02-05 23:55:51 +00:00
Jonathan Wakely 488b3e6573 re PR libstdc++/49204 ([C++0x] remaining issues in <future>)
PR libstdc++/49204
	* include/std/future (__future_base::_State_base::wait()): Use lambda
	expression for predicate and remove redundant test.
	(__future_base::_State_base::wait_for()): Return future_status and
	use lambda expression for predicate.
	(__future_base::_State_base::wait_until()): Likewise.
	(__basic_future::wait_for(), __basic_future::wait_until()): Likewise.
	(__future_base::_Async_state): Replace with _Async_state_common
	class for non-dependent functionality and _Async_state_impl class
	template for dependent functionality.
	(__future_base::_Async_state_common::_M_join): Serialize attempts to
	join thread.
	(__future_base::_Async_state_common::_M_run_deferred): Join.
	(__future_base::_Async_state::_M_do_run): Replace with lambda.
	* src/c++11/future.cc (__future_base::_Async_state_common): Define
	destructor, so key function is in the library.
	* config/abi/pre/gnu.ver: Add exports for ~_Async_state_common.
	* testsuite/30_threads/packaged_task/members/get_future.cc: Expect
	future_status return instead of bool.
	* testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
	* testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
	* testsuite/30_threads/future/members/wait_until.cc: Likewise.
	* testsuite/30_threads/future/members/wait_for.cc: Likewise.
	* testsuite/30_threads/promise/members/set_value2.cc: Likewise.
	* testsuite/30_threads/promise/members/set_value3.cc: Likewise.
	* testsuite/30_threads/promise/members/swap.cc: Likewise.

From-SVN: r183788
2012-02-01 00:20:08 +00:00
Jonathan Wakely 7e98765e75 re PR libstdc++/49204 ([C++0x] remaining issues in <future>)
PR libstdc++/49204
	* include/std/future (future_errc): Implement LWG 2056.

From-SVN: r182658
2011-12-23 16:10:48 +00:00
Benjamin Kosnik a152e96f01 acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Remove size-specific macros.
2011-11-30  Benjamin Kosnik  <bkoz@redhat.com>

        * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Remove
        size-specific macros. _GLIBCXX_ATOMIC_BUILTINS_1,
        _GLIBCXX_ATOMIC_BUILTINS_2, _GLIBCXX_ATOMIC_BUILTINS_4,
        _GLIBCXX_ATOMIC_BUILTINS_8. Use _GLIBCXX_ATOMIC_BUILTINS to
        indicate use of C++11 atomic builtins.
        * config.h.in: Regenerate.
        * configure: Regenerate.
        * include/Makefile.am (bits_sup_headers): Add atomic_lockfree_defines.h.
        * include/Makefile.in: Regenerate.
        * libsupc++/Makefile.am: Compile C++11 support with -std=gnu++0x.
        * libsupc++/Makefile.in: Regenerate.

        * include/bits/atomic_base.h: Move lock-free property macros...
        * libsupc++/atomic_lockfree_defines.h: ...here.
        * include/std/future: Use C++11 macros.
        * libsupc++/eh_ptr.cc: Same.
        * libsupc++/eh_throw.cc: Same.
        * libsupc++/exception: Same.
        * libsupc++/exception_ptr.h: Same.
        * libsupc++/guard.cc: Same.
        * libsupc++/nested_exception.cc: Same.
        * libsupc++/nested_exception.h: Same.
        * src/future.cc: Same.

        * include/ext/atomicity.h: Use _GLIBCXX_ATOMIC_BUILTINS.

        * doc/doxygen/user.cfg.in
        * doc/xml/manual/concurrency_extensions.xml

        * testsuite/18_support/exception_ptr/lifespan.cc
        * testsuite/lib/libstdc++.exp

From-SVN: r181869
2011-12-01 02:20:32 +00:00
Jonathan Wakely a58a38b32c shared_ptr_base.h (_Sp_counted_ptr): Make 'final'.
* include/bits/shared_ptr_base.h (_Sp_counted_ptr): Make 'final'.
	(_Sp_counted_deleter): Make 'final'. Use allocator_traits.
	(_Sp_counted_ptr_inplace): Make 'final'. Use allocator_traits.
	Derive from _Sp_counted_ptr instead of _Sp_counted_deleter to use EBO
	for the allocator.
	(__shared_count, __shared_ptr): Use allocator_traits.
	* include/std/future (__future_base::_Result_alloc): Make 'final'. Use
	allocator traits.
	(__future_base::_Task_state): Make 'final'.
	(__future_base::_Deferred_state): Likewise.
	(__future_base::_Async_state): Likewise.
	* testsuite/20_util/shared_ptr/cons/alloc_min.cc: New.
	* testsuite/20_util/shared_ptr/creation/alloc_min.cc: New.
	* testsuite/20_util/shared_ptr/creation/private.cc: New.
	* testsuite/20_util/shared_ptr/cons/43820_neg.cc: Adjust line numbers.
	* testsuite/30_threads/packaged_task/cons/alloc_min.cc: New.
	* testsuite/30_threads/promise/cons/alloc_min.cc: New.

From-SVN: r181171
2011-11-08 16:45:54 +00:00
Jonathan Wakely c4d9f41936 future (__future_base::_Ptr): Use alias-declaration.
* include/std/future (__future_base::_Ptr): Use alias-declaration.
	(__is_same_pkgdtask): Rename to __constrain_pkgdtask and use decay
	instead of remove_reference so that cv-quals are removed.

From-SVN: r181145
2011-11-08 01:23:53 +00:00
Jonathan Wakely 376d7c51ec future (promise): Add constructors for uses-allocator construction from rvalue promise.
* include/std/future (promise): Add constructors for uses-allocator
	construction from rvalue promise.
	(packaged_task): Implement LWG 2067. Add additional constructors for
	uses-allocator construction.
	* testsuite/30_threads/packaged_task/cons/3.cc: New.
	* testsuite/30_threads/packaged_task/cons/alloc2.cc: New.
	* testsuite/30_threads/promise/cons/alloc2.cc: New.

From-SVN: r180757
2011-11-02 00:53:12 +00:00
Paolo Carlini a4eeb82207 future: constexpr functions are implicitly inline.
2011-08-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/future: constexpr functions are implicitly inline.
	* include/std/chrono: Likewise.
	* include/std/complex: Likewise.
	* include/bits/move.h: Likewise.
	* include/bits/stl_pair.h: Likewise.

From-SVN: r177679
2011-08-11 17:53:05 +00:00