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1 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 5339bf67d9 |
@@ -6,11 +6,6 @@
|
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:github-pr-url: https://github.com/boostorg/unordered/pull
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:cpp: C++
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== Release 1.84.0
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* Added debug mode mechanisms for detecting illegal reentrancies into
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a `boost::concurrent_flat_map` from user code.
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== Release 1.83.0 - Major update
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* Added `boost::concurrent_flat_map`, a fast, thread-safe hashmap based on open addressing.
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@@ -1,138 +0,0 @@
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/* Copyright 2023 Joaquin M Lopez Munoz.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See https://www.boost.org/libs/unordered for library home page.
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*/
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#ifndef BOOST_UNORDERED_DETAIL_FOA_ANNOTATED_MUTEX_HPP
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#define BOOST_UNORDERED_DETAIL_FOA_ANNOTATED_MUTEX_HPP
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#include <boost/config.hpp>
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#include <utility>
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namespace boost{
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namespace unordered{
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namespace detail{
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namespace foa{
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/* reference: https://clang.llvm.org/docs/ThreadSafetyAnalysis.htm */
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#if defined(BOOST_CLANG)&&!defined(SWIG)
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#define BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(x) __attribute__((x))
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#else
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#define BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(x)
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#endif
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#define BOOST_UNORDERED_CAPABILITY(x) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(capability(x))
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#define BOOST_UNORDERED_SCOPED_CAPABILITY \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(scoped_lockable)
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#define BOOST_UNORDERED_GUARDED_BY(x) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(guarded_by(x))
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#define BOOST_UNORDERED_PT_GUARDED_BY(x) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(pt_guarded_by(x))
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#define BOOST_UNORDERED_ACQUIRED_BEFORE(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(acquired_before(__VA_ARGS__))
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#define BOOST_UNORDERED_ACQUIRED_AFTER(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(acquired_after(__VA_ARGS__))
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#define BOOST_UNORDERED_REQUIRES(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(requires_capability(__VA_ARGS__))
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#define BOOST_UNORDERED_REQUIRES_SHARED(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(requires_shared_capability(__VA_ARGS__))
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#define BOOST_UNORDERED_ACQUIRE(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(acquire_capability(__VA_ARGS__))
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#define BOOST_UNORDERED_ACQUIRE_SHARED(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(acquire_shared_capability(__VA_ARGS__))
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#define BOOST_UNORDERED_RELEASE(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(release_capability(__VA_ARGS__))
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|
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#define BOOST_UNORDERED_RELEASE_SHARED(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(release_shared_capability(__VA_ARGS__))
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|
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#define BOOST_UNORDERED_RELEASE_GENERIC(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(release_generic_capability(__VA_ARGS__))
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|
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#define BOOST_UNORDERED_TRY_ACQUIRE(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(try_acquire_capability(__VA_ARGS__))
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|
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#define BOOST_UNORDERED_TRY_ACQUIRE_SHARED(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR( \
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try_acquire_shared_capability(__VA_ARGS__))
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|
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#define BOOST_UNORDERED_EXCLUDES(...) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(locks_excluded(__VA_ARGS__))
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#define BOOST_UNORDERED_ASSERT_CAPABILITY(x) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(assert_capability(x))
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#define BOOST_UNORDERED_ASSERT_SHARED_CAPABILITY(x) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(assert_shared_capability(x))
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#define BOOST_UNORDERED_RETURN_CAPABILITY(x) \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(lock_returned(x))
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#define BOOST_UNORDERED_NO_THREAD_SAFETY_ANALYSIS \
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BOOST_UNORDERED_THREAD_ANNOTATION_ATTR(no_thread_safety_analysis)
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template<typename Mutex>
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struct BOOST_UNORDERED_CAPABILITY("mutex") annotated_mutex:Mutex
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{
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using super=Mutex;
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using super::super;
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void lock() noexcept(noexcept(super::lock()))
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BOOST_UNORDERED_ACQUIRE()
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{
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super::lock();
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}
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bool try_lock() noexcept(noexcept(super::try_lock()))
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BOOST_UNORDERED_TRY_ACQUIRE(true)
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{
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return super::try_lock();
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}
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|
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void unlock() noexcept(noexcept(super::unlock()))
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BOOST_UNORDERED_RELEASE()
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{
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super::unlock();
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}
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void lock_shared() noexcept(noexcept(super::lock_shared()))
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BOOST_UNORDERED_ACQUIRE_SHARED()
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{
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super::lock_shared();
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}
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bool try_lock_shared() noexcept(noexcept(super::try_lock_shared()))
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BOOST_UNORDERED_TRY_ACQUIRE_SHARED(true)
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{
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return super::try_lock();
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}
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|
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void unlock_shared() noexcept(noexcept(super::unlock_shared()))
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BOOST_UNORDERED_RELEASE_SHARED()
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{
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super::unlock_shared();
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}
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};
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|
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} /* namespace foa */
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} /* namespace detail */
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} /* namespace unordered */
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} /* namespace boost */
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#endif
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@@ -19,9 +19,7 @@
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#include <boost/cstdint.hpp>
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#include <boost/mp11/tuple.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/unordered/detail/foa/annotated_mutex.hpp>
|
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#include <boost/unordered/detail/foa/core.hpp>
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#include <boost/unordered/detail/foa/reentrancy_check.hpp>
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#include <boost/unordered/detail/foa/rw_spinlock.hpp>
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#include <boost/unordered/detail/foa/tuple_rotate_right.hpp>
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||||
#include <cstddef>
|
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@@ -109,10 +107,8 @@ public:
|
||||
return mutexes[pos];
|
||||
}
|
||||
|
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void lock()noexcept BOOST_UNORDERED_NO_THREAD_SAFETY_ANALYSIS
|
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{for(std::size_t n=0;n<N;)mutexes[n++].lock();}
|
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void unlock()noexcept BOOST_UNORDERED_NO_THREAD_SAFETY_ANALYSIS
|
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{for(auto n=N;n>0;)mutexes[--n].unlock();}
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void lock()noexcept{for(std::size_t n=0;n<N;)mutexes[n++].lock();}
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||||
void unlock()noexcept{for(auto n=N;n>0;)mutexes[--n].unlock();}
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||||
|
||||
private:
|
||||
cache_aligned_array<Mutex,N> mutexes;
|
||||
@@ -130,10 +126,8 @@ public:
|
||||
/* not used but VS in pre-C++17 mode needs to see it for RVO */
|
||||
shared_lock(const shared_lock&);
|
||||
|
||||
void lock() BOOST_UNORDERED_NO_THREAD_SAFETY_ANALYSIS
|
||||
{BOOST_ASSERT(!owns);m.lock_shared();owns=true;}
|
||||
void unlock() BOOST_UNORDERED_NO_THREAD_SAFETY_ANALYSIS
|
||||
{BOOST_ASSERT(owns);m.unlock_shared();owns=false;}
|
||||
void lock(){BOOST_ASSERT(!owns);m.lock_shared();owns=true;}
|
||||
void unlock(){BOOST_ASSERT(owns);m.unlock_shared();owns=false;}
|
||||
|
||||
private:
|
||||
Mutex &m;
|
||||
@@ -217,7 +211,7 @@ struct atomic_integral
|
||||
|
||||
struct group_access
|
||||
{
|
||||
using mutex_type=annotated_mutex<rw_spinlock>;
|
||||
using mutex_type=rw_spinlock;
|
||||
using shared_lock_guard=shared_lock<mutex_type>;
|
||||
using exclusive_lock_guard=lock_guard<mutex_type>;
|
||||
using insert_counter_type=std::atomic<boost::uint32_t>;
|
||||
@@ -841,11 +835,11 @@ public:
|
||||
}
|
||||
|
||||
private:
|
||||
using mutex_type=annotated_mutex<rw_spinlock>;
|
||||
using multimutex_type=annotated_mutex<multimutex<mutex_type,128>>; // TODO: adapt 128 to the machine
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||||
using shared_lock_guard=reentrancy_checked<shared_lock<mutex_type>>;
|
||||
using exclusive_lock_guard=reentrancy_checked<lock_guard<multimutex_type>>;
|
||||
using exclusive_bilock_guard=reentrancy_bichecked<scoped_bilock<multimutex_type>>;
|
||||
using mutex_type=rw_spinlock;
|
||||
using multimutex_type=multimutex<mutex_type,128>; // TODO: adapt 128 to the machine
|
||||
using shared_lock_guard=shared_lock<mutex_type>;
|
||||
using exclusive_lock_guard=lock_guard<multimutex_type>;
|
||||
using exclusive_bilock_guard=scoped_bilock<multimutex_type>;
|
||||
using group_shared_lock_guard=typename group_access::shared_lock_guard;
|
||||
using group_exclusive_lock_guard=typename group_access::exclusive_lock_guard;
|
||||
using group_insert_counter_type=typename group_access::insert_counter_type;
|
||||
@@ -865,18 +859,18 @@ private:
|
||||
{
|
||||
thread_local auto id=(++thread_counter)%mutexes.size();
|
||||
|
||||
return shared_lock_guard{this,mutexes[id]};
|
||||
return shared_lock_guard{mutexes[id]};
|
||||
}
|
||||
|
||||
inline exclusive_lock_guard exclusive_access()const
|
||||
{
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||||
return exclusive_lock_guard{this,mutexes};
|
||||
return exclusive_lock_guard{mutexes};
|
||||
}
|
||||
|
||||
static inline exclusive_bilock_guard exclusive_access(
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const concurrent_table& x,const concurrent_table& y)
|
||||
{
|
||||
return {&x,&y,x.mutexes,y.mutexes};
|
||||
return {x.mutexes,y.mutexes};
|
||||
}
|
||||
|
||||
template<typename Hash2,typename Pred2>
|
||||
@@ -884,7 +878,7 @@ private:
|
||||
const concurrent_table& x,
|
||||
const concurrent_table<TypePolicy,Hash2,Pred2,Allocator>& y)
|
||||
{
|
||||
return {&x,&y,x.mutexes,y.mutexes};
|
||||
return {x.mutexes,y.mutexes};
|
||||
}
|
||||
|
||||
/* Tag-dispatched shared/exclusive group access */
|
||||
|
||||
@@ -6,6 +6,7 @@
|
||||
#define BOOST_UNORDERED_DETAIL_FOA_NODE_MAP_TYPES_HPP
|
||||
|
||||
#include <boost/core/allocator_access.hpp>
|
||||
#include <boost/core/no_exceptions_support.hpp>
|
||||
#include <boost/core/pointer_traits.hpp>
|
||||
|
||||
namespace boost {
|
||||
|
||||
@@ -6,6 +6,7 @@
|
||||
#define BOOST_UNORDERED_DETAIL_FOA_NODE_SET_TYPES_HPP
|
||||
|
||||
#include <boost/core/allocator_access.hpp>
|
||||
#include <boost/core/no_exceptions_support.hpp>
|
||||
#include <boost/core/pointer_traits.hpp>
|
||||
|
||||
namespace boost {
|
||||
|
||||
@@ -1,181 +0,0 @@
|
||||
/* Copyright 2023 Joaquin M Lopez Munoz.
|
||||
* Distributed under the Boost Software License, Version 1.0.
|
||||
* (See accompanying file LICENSE_1_0.txt or copy at
|
||||
* http://www.boost.org/LICENSE_1_0.txt)
|
||||
*
|
||||
* See https://www.boost.org/libs/unordered for library home page.
|
||||
*/
|
||||
|
||||
#ifndef BOOST_UNORDERED_DETAIL_FOA_REENTRANCY_CHECK_HPP
|
||||
#define BOOST_UNORDERED_DETAIL_FOA_REENTRANCY_CHECK_HPP
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/unordered/detail/foa/annotated_mutex.hpp>
|
||||
#include <utility>
|
||||
|
||||
#if !defined(BOOST_UNORDERED_DISABLE_REENTRANCY_CHECK)&& \
|
||||
!defined(BOOST_ASSERT_IS_VOID)
|
||||
#define BOOST_UNORDERED_REENTRANCY_CHECK
|
||||
#endif
|
||||
|
||||
namespace boost{
|
||||
namespace unordered{
|
||||
namespace detail{
|
||||
namespace foa{
|
||||
|
||||
#if defined(BOOST_UNORDERED_REENTRANCY_CHECK)
|
||||
|
||||
class entry_trace
|
||||
{
|
||||
public:
|
||||
entry_trace(const void* px_):px{px_}
|
||||
{
|
||||
if(px){
|
||||
BOOST_ASSERT_MSG(!find(px),"reentrancy not allowed");
|
||||
header()=this;
|
||||
}
|
||||
}
|
||||
|
||||
/* not used but VS in pre-C++17 mode needs to see it for RVO */
|
||||
entry_trace(const entry_trace&);
|
||||
|
||||
~entry_trace(){clear();}
|
||||
|
||||
void clear()
|
||||
{
|
||||
if(px){
|
||||
header()=next;
|
||||
px=nullptr;
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
static entry_trace*& header()
|
||||
{
|
||||
thread_local entry_trace *pe=nullptr;
|
||||
return pe;
|
||||
}
|
||||
|
||||
static bool find(const void* px)
|
||||
{
|
||||
for(auto pe=header();pe;pe=pe->next){
|
||||
if(pe->px==px)return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
const void *px;
|
||||
entry_trace *next=header();
|
||||
};
|
||||
|
||||
template<typename>
|
||||
struct reentrancy_checked;
|
||||
|
||||
template<template <typename> class LockGuard,typename Mutex>
|
||||
struct BOOST_UNORDERED_SCOPED_CAPABILITY reentrancy_checked<LockGuard<Mutex>>
|
||||
{
|
||||
reentrancy_checked(const void* px,Mutex& m_)
|
||||
BOOST_UNORDERED_ACQUIRE(m_):
|
||||
tr{px},lck{m_},m{m_}{}
|
||||
|
||||
reentrancy_checked(const reentrancy_checked& x) BOOST_UNORDERED_ACQUIRE(x.m);
|
||||
|
||||
~reentrancy_checked() BOOST_UNORDERED_RELEASE() = default;
|
||||
|
||||
void unlock() BOOST_UNORDERED_RELEASE()
|
||||
{
|
||||
lck.unlock();
|
||||
tr.clear();
|
||||
}
|
||||
|
||||
entry_trace tr;
|
||||
LockGuard<Mutex> lck;
|
||||
Mutex& m;
|
||||
};
|
||||
|
||||
template<typename>
|
||||
struct reentrancy_bichecked;
|
||||
|
||||
template<template <typename> class LockGuard,typename Mutex>
|
||||
struct BOOST_UNORDERED_SCOPED_CAPABILITY reentrancy_bichecked<LockGuard<Mutex>>
|
||||
{
|
||||
template<typename Mutex1, typename Mutex2>
|
||||
reentrancy_bichecked(const void* px,const void* py,Mutex1& m1_,Mutex2& m2_)
|
||||
BOOST_UNORDERED_ACQUIRE(m1_,m2_):
|
||||
tr1{px},tr2{py!=px?py:nullptr},lck{m1_,m2_},m1{m1_},m2{m2_}{}
|
||||
|
||||
reentrancy_bichecked(const reentrancy_bichecked& x)
|
||||
BOOST_UNORDERED_ACQUIRE(x.m1,x.m2);
|
||||
|
||||
~reentrancy_bichecked() BOOST_UNORDERED_RELEASE() = default;
|
||||
|
||||
void unlock() BOOST_UNORDERED_RELEASE()
|
||||
{
|
||||
lck.unlock();
|
||||
tr2.clear();
|
||||
tr1.clear();
|
||||
}
|
||||
|
||||
entry_trace tr1,tr2;
|
||||
LockGuard<Mutex> lck;
|
||||
Mutex &m1,&m2;
|
||||
};
|
||||
|
||||
#else
|
||||
|
||||
template<typename>
|
||||
struct reentrancy_checked;
|
||||
|
||||
template<template <typename> class LockGuard,typename Mutex>
|
||||
struct BOOST_UNORDERED_SCOPED_CAPABILITY reentrancy_checked<LockGuard<Mutex>>
|
||||
{
|
||||
reentrancy_checked(const void*,Mutex& m_)
|
||||
BOOST_UNORDERED_ACQUIRE(m_):
|
||||
lck{m_},m{m_}{}
|
||||
|
||||
reentrancy_checked(const reentrancy_checked& x) BOOST_UNORDERED_ACQUIRE(x.m);
|
||||
|
||||
~reentrancy_checked() BOOST_UNORDERED_RELEASE() = default;
|
||||
|
||||
void unlock() BOOST_UNORDERED_RELEASE()
|
||||
{
|
||||
lck.unlock();
|
||||
}
|
||||
|
||||
LockGuard<Mutex> lck;
|
||||
Mutex& m;
|
||||
};
|
||||
|
||||
template<typename>
|
||||
struct reentrancy_bichecked;
|
||||
|
||||
template<template <typename> class LockGuard,typename Mutex>
|
||||
struct BOOST_UNORDERED_SCOPED_CAPABILITY reentrancy_bichecked<LockGuard<Mutex>>
|
||||
{
|
||||
template<typename Mutex1, typename Mutex2>
|
||||
reentrancy_bichecked(const void*,const void*,Mutex1& m1_,Mutex2& m2_)
|
||||
BOOST_UNORDERED_ACQUIRE(m1_,m2_):
|
||||
lck{m1_,m2_},m1{m1_},m2{m2_}{}
|
||||
|
||||
reentrancy_bichecked(const reentrancy_bichecked& x)
|
||||
BOOST_UNORDERED_ACQUIRE(x.m1,x.m2);
|
||||
|
||||
~reentrancy_bichecked() BOOST_UNORDERED_RELEASE() = default;
|
||||
|
||||
void unlock() BOOST_UNORDERED_RELEASE()
|
||||
{
|
||||
lck.unlock();
|
||||
}
|
||||
|
||||
LockGuard<Mutex> lck;
|
||||
Mutex &m1,&m2;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
} /* namespace foa */
|
||||
} /* namespace detail */
|
||||
} /* namespace unordered */
|
||||
} /* namespace boost */
|
||||
|
||||
#endif
|
||||
@@ -202,7 +202,6 @@ local CFOA_TESTS =
|
||||
rw_spinlock_test6
|
||||
rw_spinlock_test7
|
||||
rw_spinlock_test8
|
||||
reentrancy_check_test
|
||||
;
|
||||
|
||||
for local test in $(CFOA_TESTS)
|
||||
|
||||
@@ -1,79 +0,0 @@
|
||||
// Copyright 2023 Joaquin M Lopez Munoz
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// https://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#include <cstdlib>
|
||||
|
||||
#define BOOST_ENABLE_ASSERT_HANDLER
|
||||
|
||||
static bool reentrancy_detected = false;
|
||||
|
||||
namespace boost {
|
||||
// Caveat lector: a proper handler shouldn't throw as it may be executed
|
||||
// within a noexcept function.
|
||||
|
||||
void assertion_failed_msg(
|
||||
char const*, char const*, char const*, char const*, long)
|
||||
{
|
||||
reentrancy_detected = true;
|
||||
throw 0;
|
||||
}
|
||||
|
||||
void assertion_failed(char const*, char const*, char const*, long) // LCOV_EXCL_START
|
||||
{
|
||||
std::abort();
|
||||
} // LCOV_EXCL_STOP
|
||||
|
||||
}
|
||||
|
||||
#include <boost/unordered/concurrent_flat_map.hpp>
|
||||
#include <boost/core/lightweight_test.hpp>
|
||||
|
||||
template<typename F>
|
||||
void detect_reentrancy(F f)
|
||||
{
|
||||
reentrancy_detected = false;
|
||||
try {
|
||||
f();
|
||||
}
|
||||
catch(int) {}
|
||||
BOOST_TEST(reentrancy_detected);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
using map = boost::concurrent_flat_map<int, int>;
|
||||
using value_type = typename map::value_type;
|
||||
|
||||
map m1, m2;
|
||||
m1.emplace(0, 0);
|
||||
m2.emplace(1, 0);
|
||||
|
||||
detect_reentrancy([&] {
|
||||
m1.visit_all([&](value_type&) { (void)m1.contains(0); });
|
||||
}); // LCOV_EXCL_LINE
|
||||
|
||||
detect_reentrancy([&] {
|
||||
m1.visit_all([&](value_type&) { m1.rehash(0); });
|
||||
}); // LCOV_EXCL_LINE
|
||||
|
||||
detect_reentrancy([&] {
|
||||
m1.visit_all([&](value_type&) {
|
||||
m2.visit_all([&](value_type&) {
|
||||
m1=m2;
|
||||
}); // LCOV_EXCL_START
|
||||
});
|
||||
});
|
||||
// LCOV_EXCL_STOP
|
||||
|
||||
detect_reentrancy([&] {
|
||||
m1.visit_all([&](value_type&) {
|
||||
m2.visit_all([&](value_type&) {
|
||||
m2=m1;
|
||||
}); // LCOV_EXCL_START
|
||||
});
|
||||
});
|
||||
// LCOV_EXCL_STOP
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
||||
Reference in New Issue
Block a user