mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-06-01 18:22:27 +00:00
Release Cosmopolitan v3.6.0
This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23
This commit is contained in:
Justine Tunney
parent
62ace3623a
commit
5660ec4741
1585 changed files with 117353 additions and 271644 deletions
550
third_party/libcxx/shared_mutex
vendored
550
third_party/libcxx/shared_mutex
vendored
|
|
@ -122,399 +122,341 @@ template <class Mutex>
|
|||
|
||||
*/
|
||||
|
||||
#include <__assert> // all public C++ headers provide the assertion handler
|
||||
#include <__availability>
|
||||
#include <__chrono/duration.h>
|
||||
#include <__chrono/steady_clock.h>
|
||||
#include <__chrono/time_point.h>
|
||||
#include <__condition_variable/condition_variable.h>
|
||||
#include <__config>
|
||||
#include <__memory/addressof.h>
|
||||
#include <__mutex/mutex.h>
|
||||
#include <__mutex/tag_types.h>
|
||||
#include <__mutex/unique_lock.h>
|
||||
#include <__system_error/system_error.h>
|
||||
#include <__utility/swap.h>
|
||||
#include <cerrno>
|
||||
#include <version>
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_THREADS)
|
||||
|
||||
# include <__chrono/duration.h>
|
||||
# include <__chrono/steady_clock.h>
|
||||
# include <__chrono/time_point.h>
|
||||
# include <__condition_variable/condition_variable.h>
|
||||
# include <__memory/addressof.h>
|
||||
# include <__mutex/mutex.h>
|
||||
# include <__mutex/tag_types.h>
|
||||
# include <__mutex/unique_lock.h>
|
||||
# include <__system_error/system_error.h>
|
||||
# include <__utility/swap.h>
|
||||
# include <cerrno>
|
||||
# include <version>
|
||||
|
||||
_LIBCPP_PUSH_MACROS
|
||||
#include <__undef_macros>
|
||||
# include <__undef_macros>
|
||||
|
||||
# if _LIBCPP_STD_VER >= 14
|
||||
|
||||
#if _LIBCPP_STD_VER >= 14 || defined(_LIBCPP_BUILDING_LIBRARY)
|
||||
|
||||
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
#endif
|
||||
|
||||
#ifdef _LIBCPP_HAS_NO_THREADS
|
||||
# error "<shared_mutex> is not supported since libc++ has been configured without support for threads."
|
||||
#endif
|
||||
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
||||
# pragma GCC system_header
|
||||
# endif
|
||||
|
||||
_LIBCPP_BEGIN_NAMESPACE_STD
|
||||
|
||||
struct _LIBCPP_TYPE_VIS _LIBCPP_AVAILABILITY_SHARED_MUTEX _LIBCPP_THREAD_SAFETY_ANNOTATION(capability("shared_mutex"))
|
||||
__shared_mutex_base
|
||||
{
|
||||
mutex __mut_;
|
||||
condition_variable __gate1_;
|
||||
condition_variable __gate2_;
|
||||
unsigned __state_;
|
||||
struct _LIBCPP_EXPORTED_FROM_ABI __shared_mutex_base {
|
||||
mutex __mut_;
|
||||
condition_variable __gate1_;
|
||||
condition_variable __gate2_;
|
||||
unsigned __state_;
|
||||
|
||||
static const unsigned __write_entered_ = 1U << (sizeof(unsigned)*__CHAR_BIT__ - 1);
|
||||
static const unsigned __n_readers_ = ~__write_entered_;
|
||||
static const unsigned __write_entered_ = 1U << (sizeof(unsigned) * __CHAR_BIT__ - 1);
|
||||
static const unsigned __n_readers_ = ~__write_entered_;
|
||||
|
||||
__shared_mutex_base();
|
||||
_LIBCPP_INLINE_VISIBILITY ~__shared_mutex_base() = default;
|
||||
__shared_mutex_base();
|
||||
_LIBCPP_HIDE_FROM_ABI ~__shared_mutex_base() = default;
|
||||
|
||||
__shared_mutex_base(const __shared_mutex_base&) = delete;
|
||||
__shared_mutex_base& operator=(const __shared_mutex_base&) = delete;
|
||||
__shared_mutex_base(const __shared_mutex_base&) = delete;
|
||||
__shared_mutex_base& operator=(const __shared_mutex_base&) = delete;
|
||||
|
||||
// Exclusive ownership
|
||||
void lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(acquire_capability()); // blocking
|
||||
bool try_lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(try_acquire_capability(true));
|
||||
void unlock() _LIBCPP_THREAD_SAFETY_ANNOTATION(release_capability());
|
||||
// Exclusive ownership
|
||||
void lock(); // blocking
|
||||
bool try_lock();
|
||||
void unlock();
|
||||
|
||||
// Shared ownership
|
||||
void lock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(acquire_shared_capability()); // blocking
|
||||
bool try_lock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(try_acquire_shared_capability(true));
|
||||
void unlock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(release_shared_capability());
|
||||
// Shared ownership
|
||||
void lock_shared(); // blocking
|
||||
bool try_lock_shared();
|
||||
void unlock_shared();
|
||||
|
||||
// typedef implementation-defined native_handle_type; // See 30.2.3
|
||||
// native_handle_type native_handle(); // See 30.2.3
|
||||
// typedef implementation-defined native_handle_type; // See 30.2.3
|
||||
// native_handle_type native_handle(); // See 30.2.3
|
||||
};
|
||||
|
||||
# if _LIBCPP_STD_VER >= 17
|
||||
class _LIBCPP_EXPORTED_FROM_ABI _LIBCPP_THREAD_SAFETY_ANNOTATION(__capability__("shared_mutex")) shared_mutex {
|
||||
__shared_mutex_base __base_;
|
||||
|
||||
#if _LIBCPP_STD_VER >= 17
|
||||
class _LIBCPP_TYPE_VIS _LIBCPP_AVAILABILITY_SHARED_MUTEX shared_mutex
|
||||
{
|
||||
__shared_mutex_base __base_;
|
||||
public:
|
||||
_LIBCPP_INLINE_VISIBILITY shared_mutex() : __base_() {}
|
||||
_LIBCPP_INLINE_VISIBILITY ~shared_mutex() = default;
|
||||
_LIBCPP_HIDE_FROM_ABI shared_mutex() : __base_() {}
|
||||
_LIBCPP_HIDE_FROM_ABI ~shared_mutex() = default;
|
||||
|
||||
shared_mutex(const shared_mutex&) = delete;
|
||||
shared_mutex& operator=(const shared_mutex&) = delete;
|
||||
shared_mutex(const shared_mutex&) = delete;
|
||||
shared_mutex& operator=(const shared_mutex&) = delete;
|
||||
|
||||
// Exclusive ownership
|
||||
_LIBCPP_INLINE_VISIBILITY void lock() { return __base_.lock(); }
|
||||
_LIBCPP_INLINE_VISIBILITY bool try_lock() { return __base_.try_lock(); }
|
||||
_LIBCPP_INLINE_VISIBILITY void unlock() { return __base_.unlock(); }
|
||||
// Exclusive ownership
|
||||
_LIBCPP_HIDE_FROM_ABI void lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(__acquire_capability__()) {
|
||||
return __base_.lock();
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_capability__(true)) {
|
||||
return __base_.try_lock();
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI void unlock() _LIBCPP_THREAD_SAFETY_ANNOTATION(__release_capability__()) {
|
||||
return __base_.unlock();
|
||||
}
|
||||
|
||||
// Shared ownership
|
||||
_LIBCPP_INLINE_VISIBILITY void lock_shared() { return __base_.lock_shared(); }
|
||||
_LIBCPP_INLINE_VISIBILITY bool try_lock_shared() { return __base_.try_lock_shared(); }
|
||||
_LIBCPP_INLINE_VISIBILITY void unlock_shared() { return __base_.unlock_shared(); }
|
||||
// Shared ownership
|
||||
_LIBCPP_HIDE_FROM_ABI void lock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(__acquire_shared_capability__()) {
|
||||
return __base_.lock_shared();
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_shared()
|
||||
_LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_shared_capability__(true)) {
|
||||
return __base_.try_lock_shared();
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI void unlock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(__release_shared_capability__()) {
|
||||
return __base_.unlock_shared();
|
||||
}
|
||||
|
||||
// typedef __shared_mutex_base::native_handle_type native_handle_type;
|
||||
// _LIBCPP_INLINE_VISIBILITY native_handle_type native_handle() { return __base::unlock_shared(); }
|
||||
// typedef __shared_mutex_base::native_handle_type native_handle_type;
|
||||
// _LIBCPP_HIDE_FROM_ABI native_handle_type native_handle() { return __base::unlock_shared(); }
|
||||
};
|
||||
#endif
|
||||
# endif
|
||||
|
||||
class _LIBCPP_EXPORTED_FROM_ABI
|
||||
_LIBCPP_THREAD_SAFETY_ANNOTATION(__capability__("shared_timed_mutex")) shared_timed_mutex {
|
||||
__shared_mutex_base __base_;
|
||||
|
||||
class _LIBCPP_TYPE_VIS _LIBCPP_AVAILABILITY_SHARED_MUTEX shared_timed_mutex
|
||||
{
|
||||
__shared_mutex_base __base_;
|
||||
public:
|
||||
shared_timed_mutex();
|
||||
_LIBCPP_INLINE_VISIBILITY ~shared_timed_mutex() = default;
|
||||
shared_timed_mutex();
|
||||
_LIBCPP_HIDE_FROM_ABI ~shared_timed_mutex() = default;
|
||||
|
||||
shared_timed_mutex(const shared_timed_mutex&) = delete;
|
||||
shared_timed_mutex& operator=(const shared_timed_mutex&) = delete;
|
||||
shared_timed_mutex(const shared_timed_mutex&) = delete;
|
||||
shared_timed_mutex& operator=(const shared_timed_mutex&) = delete;
|
||||
|
||||
// Exclusive ownership
|
||||
void lock();
|
||||
bool try_lock();
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
bool
|
||||
try_lock_for(const chrono::duration<_Rep, _Period>& __rel_time)
|
||||
{
|
||||
return try_lock_until(chrono::steady_clock::now() + __rel_time);
|
||||
}
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
|
||||
bool
|
||||
try_lock_until(const chrono::time_point<_Clock, _Duration>& __abs_time);
|
||||
void unlock();
|
||||
// Exclusive ownership
|
||||
void lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(__acquire_capability__());
|
||||
bool try_lock() _LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_capability__(true));
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_for(const chrono::duration<_Rep, _Period>& __rel_time)
|
||||
_LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_capability__(true)) {
|
||||
return try_lock_until(chrono::steady_clock::now() + __rel_time);
|
||||
}
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS bool
|
||||
try_lock_until(const chrono::time_point<_Clock, _Duration>& __abs_time)
|
||||
_LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_capability__(true));
|
||||
void unlock() _LIBCPP_THREAD_SAFETY_ANNOTATION(__release_capability__());
|
||||
|
||||
// Shared ownership
|
||||
void lock_shared();
|
||||
bool try_lock_shared();
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
bool
|
||||
try_lock_shared_for(const chrono::duration<_Rep, _Period>& __rel_time)
|
||||
{
|
||||
return try_lock_shared_until(chrono::steady_clock::now() + __rel_time);
|
||||
}
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS
|
||||
bool
|
||||
try_lock_shared_until(const chrono::time_point<_Clock, _Duration>& __abs_time);
|
||||
void unlock_shared();
|
||||
// Shared ownership
|
||||
void lock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(__acquire_shared_capability__());
|
||||
bool try_lock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_shared_capability__(true));
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_shared_for(const chrono::duration<_Rep, _Period>& __rel_time)
|
||||
_LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_shared_capability__(true)) {
|
||||
return try_lock_shared_until(chrono::steady_clock::now() + __rel_time);
|
||||
}
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS bool
|
||||
try_lock_shared_until(const chrono::time_point<_Clock, _Duration>& __abs_time)
|
||||
_LIBCPP_THREAD_SAFETY_ANNOTATION(__try_acquire_shared_capability__(true));
|
||||
void unlock_shared() _LIBCPP_THREAD_SAFETY_ANNOTATION(__release_shared_capability__());
|
||||
};
|
||||
|
||||
template <class _Clock, class _Duration>
|
||||
bool
|
||||
shared_timed_mutex::try_lock_until(
|
||||
const chrono::time_point<_Clock, _Duration>& __abs_time)
|
||||
{
|
||||
unique_lock<mutex> __lk(__base_.__mut_);
|
||||
if (__base_.__state_ & __base_.__write_entered_)
|
||||
{
|
||||
while (true)
|
||||
{
|
||||
cv_status __status = __base_.__gate1_.wait_until(__lk, __abs_time);
|
||||
if ((__base_.__state_ & __base_.__write_entered_) == 0)
|
||||
break;
|
||||
if (__status == cv_status::timeout)
|
||||
return false;
|
||||
}
|
||||
bool shared_timed_mutex::try_lock_until(const chrono::time_point<_Clock, _Duration>& __abs_time) {
|
||||
unique_lock<mutex> __lk(__base_.__mut_);
|
||||
if (__base_.__state_ & __base_.__write_entered_) {
|
||||
while (true) {
|
||||
cv_status __status = __base_.__gate1_.wait_until(__lk, __abs_time);
|
||||
if ((__base_.__state_ & __base_.__write_entered_) == 0)
|
||||
break;
|
||||
if (__status == cv_status::timeout)
|
||||
return false;
|
||||
}
|
||||
__base_.__state_ |= __base_.__write_entered_;
|
||||
if (__base_.__state_ & __base_.__n_readers_)
|
||||
{
|
||||
while (true)
|
||||
{
|
||||
cv_status __status = __base_.__gate2_.wait_until(__lk, __abs_time);
|
||||
if ((__base_.__state_ & __base_.__n_readers_) == 0)
|
||||
break;
|
||||
if (__status == cv_status::timeout)
|
||||
{
|
||||
__base_.__state_ &= ~__base_.__write_entered_;
|
||||
__base_.__gate1_.notify_all();
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
__base_.__state_ |= __base_.__write_entered_;
|
||||
if (__base_.__state_ & __base_.__n_readers_) {
|
||||
while (true) {
|
||||
cv_status __status = __base_.__gate2_.wait_until(__lk, __abs_time);
|
||||
if ((__base_.__state_ & __base_.__n_readers_) == 0)
|
||||
break;
|
||||
if (__status == cv_status::timeout) {
|
||||
__base_.__state_ &= ~__base_.__write_entered_;
|
||||
__base_.__gate1_.notify_all();
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
template <class _Clock, class _Duration>
|
||||
bool
|
||||
shared_timed_mutex::try_lock_shared_until(
|
||||
const chrono::time_point<_Clock, _Duration>& __abs_time)
|
||||
{
|
||||
unique_lock<mutex> __lk(__base_.__mut_);
|
||||
if ((__base_.__state_ & __base_.__write_entered_) || (__base_.__state_ & __base_.__n_readers_) == __base_.__n_readers_)
|
||||
{
|
||||
while (true)
|
||||
{
|
||||
cv_status __status = __base_.__gate1_.wait_until(__lk, __abs_time);
|
||||
if ((__base_.__state_ & __base_.__write_entered_) == 0 &&
|
||||
(__base_.__state_ & __base_.__n_readers_) < __base_.__n_readers_)
|
||||
break;
|
||||
if (__status == cv_status::timeout)
|
||||
return false;
|
||||
}
|
||||
bool shared_timed_mutex::try_lock_shared_until(const chrono::time_point<_Clock, _Duration>& __abs_time) {
|
||||
unique_lock<mutex> __lk(__base_.__mut_);
|
||||
if ((__base_.__state_ & __base_.__write_entered_) ||
|
||||
(__base_.__state_ & __base_.__n_readers_) == __base_.__n_readers_) {
|
||||
while (true) {
|
||||
cv_status __status = __base_.__gate1_.wait_until(__lk, __abs_time);
|
||||
if ((__base_.__state_ & __base_.__write_entered_) == 0 &&
|
||||
(__base_.__state_ & __base_.__n_readers_) < __base_.__n_readers_)
|
||||
break;
|
||||
if (__status == cv_status::timeout)
|
||||
return false;
|
||||
}
|
||||
unsigned __num_readers = (__base_.__state_ & __base_.__n_readers_) + 1;
|
||||
__base_.__state_ &= ~__base_.__n_readers_;
|
||||
__base_.__state_ |= __num_readers;
|
||||
return true;
|
||||
}
|
||||
unsigned __num_readers = (__base_.__state_ & __base_.__n_readers_) + 1;
|
||||
__base_.__state_ &= ~__base_.__n_readers_;
|
||||
__base_.__state_ |= __num_readers;
|
||||
return true;
|
||||
}
|
||||
|
||||
template <class _Mutex>
|
||||
class shared_lock
|
||||
{
|
||||
class shared_lock {
|
||||
public:
|
||||
typedef _Mutex mutex_type;
|
||||
typedef _Mutex mutex_type;
|
||||
|
||||
private:
|
||||
mutex_type* __m_;
|
||||
bool __owns_;
|
||||
mutex_type* __m_;
|
||||
bool __owns_;
|
||||
|
||||
public:
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock() _NOEXCEPT
|
||||
: __m_(nullptr),
|
||||
__owns_(false)
|
||||
{}
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock() _NOEXCEPT : __m_(nullptr), __owns_(false) {}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit shared_lock(mutex_type& __m)
|
||||
: __m_(_VSTD::addressof(__m)),
|
||||
__owns_(true)
|
||||
{__m_->lock_shared();}
|
||||
_LIBCPP_HIDE_FROM_ABI explicit shared_lock(mutex_type& __m) : __m_(std::addressof(__m)), __owns_(true) {
|
||||
__m_->lock_shared();
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock(mutex_type& __m, defer_lock_t) _NOEXCEPT
|
||||
: __m_(_VSTD::addressof(__m)),
|
||||
__owns_(false)
|
||||
{}
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock(mutex_type& __m, defer_lock_t) _NOEXCEPT
|
||||
: __m_(std::addressof(__m)),
|
||||
__owns_(false) {}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock(mutex_type& __m, try_to_lock_t)
|
||||
: __m_(_VSTD::addressof(__m)),
|
||||
__owns_(__m.try_lock_shared())
|
||||
{}
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock(mutex_type& __m, try_to_lock_t)
|
||||
: __m_(std::addressof(__m)), __owns_(__m.try_lock_shared()) {}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock(mutex_type& __m, adopt_lock_t)
|
||||
: __m_(_VSTD::addressof(__m)),
|
||||
__owns_(true)
|
||||
{}
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock(mutex_type& __m, adopt_lock_t) : __m_(std::addressof(__m)), __owns_(true) {}
|
||||
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock(mutex_type& __m,
|
||||
const chrono::time_point<_Clock, _Duration>& __abs_time)
|
||||
: __m_(_VSTD::addressof(__m)),
|
||||
__owns_(__m.try_lock_shared_until(__abs_time))
|
||||
{}
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock(mutex_type& __m, const chrono::time_point<_Clock, _Duration>& __abs_time)
|
||||
: __m_(std::addressof(__m)), __owns_(__m.try_lock_shared_until(__abs_time)) {}
|
||||
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock(mutex_type& __m,
|
||||
const chrono::duration<_Rep, _Period>& __rel_time)
|
||||
: __m_(_VSTD::addressof(__m)),
|
||||
__owns_(__m.try_lock_shared_for(__rel_time))
|
||||
{}
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock(mutex_type& __m, const chrono::duration<_Rep, _Period>& __rel_time)
|
||||
: __m_(std::addressof(__m)), __owns_(__m.try_lock_shared_for(__rel_time)) {}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
~shared_lock()
|
||||
{
|
||||
if (__owns_)
|
||||
__m_->unlock_shared();
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI ~shared_lock() {
|
||||
if (__owns_)
|
||||
__m_->unlock_shared();
|
||||
}
|
||||
|
||||
shared_lock(shared_lock const&) = delete;
|
||||
shared_lock& operator=(shared_lock const&) = delete;
|
||||
shared_lock(shared_lock const&) = delete;
|
||||
shared_lock& operator=(shared_lock const&) = delete;
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock(shared_lock&& __u) _NOEXCEPT
|
||||
: __m_(__u.__m_),
|
||||
__owns_(__u.__owns_)
|
||||
{
|
||||
__u.__m_ = nullptr;
|
||||
__u.__owns_ = false;
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock(shared_lock&& __u) _NOEXCEPT : __m_(__u.__m_), __owns_(__u.__owns_) {
|
||||
__u.__m_ = nullptr;
|
||||
__u.__owns_ = false;
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
shared_lock& operator=(shared_lock&& __u) _NOEXCEPT
|
||||
{
|
||||
if (__owns_)
|
||||
__m_->unlock_shared();
|
||||
__m_ = nullptr;
|
||||
__owns_ = false;
|
||||
__m_ = __u.__m_;
|
||||
__owns_ = __u.__owns_;
|
||||
__u.__m_ = nullptr;
|
||||
__u.__owns_ = false;
|
||||
return *this;
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI shared_lock& operator=(shared_lock&& __u) _NOEXCEPT {
|
||||
if (__owns_)
|
||||
__m_->unlock_shared();
|
||||
__m_ = nullptr;
|
||||
__owns_ = false;
|
||||
__m_ = __u.__m_;
|
||||
__owns_ = __u.__owns_;
|
||||
__u.__m_ = nullptr;
|
||||
__u.__owns_ = false;
|
||||
return *this;
|
||||
}
|
||||
|
||||
_LIBCPP_HIDE_FROM_ABI void lock();
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock();
|
||||
template <class Rep, class Period>
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_for(const chrono::duration<Rep, Period>& __rel_time);
|
||||
template <class Clock, class Duration>
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_until(const chrono::time_point<Clock, Duration>& __abs_time);
|
||||
_LIBCPP_HIDE_FROM_ABI void unlock();
|
||||
_LIBCPP_HIDE_FROM_ABI void lock();
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock();
|
||||
template <class _Rep, class _Period>
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_for(const chrono::duration<_Rep, _Period>& __rel_time);
|
||||
template <class _Clock, class _Duration>
|
||||
_LIBCPP_HIDE_FROM_ABI bool try_lock_until(const chrono::time_point<_Clock, _Duration>& __abs_time);
|
||||
_LIBCPP_HIDE_FROM_ABI void unlock();
|
||||
|
||||
// Setters
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
void swap(shared_lock& __u) _NOEXCEPT
|
||||
{
|
||||
_VSTD::swap(__m_, __u.__m_);
|
||||
_VSTD::swap(__owns_, __u.__owns_);
|
||||
}
|
||||
// Setters
|
||||
_LIBCPP_HIDE_FROM_ABI void swap(shared_lock& __u) _NOEXCEPT {
|
||||
std::swap(__m_, __u.__m_);
|
||||
std::swap(__owns_, __u.__owns_);
|
||||
}
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
mutex_type* release() _NOEXCEPT
|
||||
{
|
||||
mutex_type* __m = __m_;
|
||||
__m_ = nullptr;
|
||||
__owns_ = false;
|
||||
return __m;
|
||||
}
|
||||
_LIBCPP_HIDE_FROM_ABI mutex_type* release() _NOEXCEPT {
|
||||
mutex_type* __m = __m_;
|
||||
__m_ = nullptr;
|
||||
__owns_ = false;
|
||||
return __m;
|
||||
}
|
||||
|
||||
// Getters
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
bool owns_lock() const _NOEXCEPT {return __owns_;}
|
||||
// Getters
|
||||
_LIBCPP_HIDE_FROM_ABI bool owns_lock() const _NOEXCEPT { return __owns_; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
explicit operator bool () const _NOEXCEPT {return __owns_;}
|
||||
_LIBCPP_HIDE_FROM_ABI explicit operator bool() const _NOEXCEPT { return __owns_; }
|
||||
|
||||
_LIBCPP_INLINE_VISIBILITY
|
||||
mutex_type* mutex() const _NOEXCEPT {return __m_;}
|
||||
_LIBCPP_HIDE_FROM_ABI mutex_type* mutex() const _NOEXCEPT { return __m_; }
|
||||
};
|
||||
_LIBCPP_CTAD_SUPPORTED_FOR_TYPE(shared_lock);
|
||||
|
||||
template <class _Mutex>
|
||||
void
|
||||
shared_lock<_Mutex>::lock()
|
||||
{
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::lock: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::lock: already locked");
|
||||
__m_->lock_shared();
|
||||
__owns_ = true;
|
||||
void shared_lock<_Mutex>::lock() {
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::lock: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::lock: already locked");
|
||||
__m_->lock_shared();
|
||||
__owns_ = true;
|
||||
}
|
||||
|
||||
template <class _Mutex>
|
||||
bool
|
||||
shared_lock<_Mutex>::try_lock()
|
||||
{
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::try_lock: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::try_lock: already locked");
|
||||
__owns_ = __m_->try_lock_shared();
|
||||
return __owns_;
|
||||
bool shared_lock<_Mutex>::try_lock() {
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::try_lock: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::try_lock: already locked");
|
||||
__owns_ = __m_->try_lock_shared();
|
||||
return __owns_;
|
||||
}
|
||||
|
||||
template <class _Mutex>
|
||||
template <class _Rep, class _Period>
|
||||
bool
|
||||
shared_lock<_Mutex>::try_lock_for(const chrono::duration<_Rep, _Period>& __d)
|
||||
{
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::try_lock_for: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::try_lock_for: already locked");
|
||||
__owns_ = __m_->try_lock_shared_for(__d);
|
||||
return __owns_;
|
||||
bool shared_lock<_Mutex>::try_lock_for(const chrono::duration<_Rep, _Period>& __d) {
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::try_lock_for: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::try_lock_for: already locked");
|
||||
__owns_ = __m_->try_lock_shared_for(__d);
|
||||
return __owns_;
|
||||
}
|
||||
|
||||
template <class _Mutex>
|
||||
template <class _Clock, class _Duration>
|
||||
bool
|
||||
shared_lock<_Mutex>::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t)
|
||||
{
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::try_lock_until: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::try_lock_until: already locked");
|
||||
__owns_ = __m_->try_lock_shared_until(__t);
|
||||
return __owns_;
|
||||
bool shared_lock<_Mutex>::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t) {
|
||||
if (__m_ == nullptr)
|
||||
__throw_system_error(EPERM, "shared_lock::try_lock_until: references null mutex");
|
||||
if (__owns_)
|
||||
__throw_system_error(EDEADLK, "shared_lock::try_lock_until: already locked");
|
||||
__owns_ = __m_->try_lock_shared_until(__t);
|
||||
return __owns_;
|
||||
}
|
||||
|
||||
template <class _Mutex>
|
||||
void
|
||||
shared_lock<_Mutex>::unlock()
|
||||
{
|
||||
if (!__owns_)
|
||||
__throw_system_error(EPERM, "shared_lock::unlock: not locked");
|
||||
__m_->unlock_shared();
|
||||
__owns_ = false;
|
||||
void shared_lock<_Mutex>::unlock() {
|
||||
if (!__owns_)
|
||||
__throw_system_error(EPERM, "shared_lock::unlock: not locked");
|
||||
__m_->unlock_shared();
|
||||
__owns_ = false;
|
||||
}
|
||||
|
||||
template <class _Mutex>
|
||||
inline _LIBCPP_INLINE_VISIBILITY
|
||||
void
|
||||
swap(shared_lock<_Mutex>& __x, shared_lock<_Mutex>& __y) _NOEXCEPT
|
||||
{__x.swap(__y);}
|
||||
inline _LIBCPP_HIDE_FROM_ABI void swap(shared_lock<_Mutex>& __x, shared_lock<_Mutex>& __y) _NOEXCEPT {
|
||||
__x.swap(__y);
|
||||
}
|
||||
|
||||
_LIBCPP_END_NAMESPACE_STD
|
||||
|
||||
#endif // _LIBCPP_STD_VER >= 14
|
||||
# endif // _LIBCPP_STD_VER >= 14
|
||||
|
||||
_LIBCPP_POP_MACROS
|
||||
|
||||
#endif // !defined(_LIBCPP_HAS_NO_THREADS)
|
||||
|
||||
#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
|
||||
# include <system_error>
|
||||
#endif
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue