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-rw-r--r--contrib/llvm-project/libcxx/src/thread.cpp222
1 files changed, 91 insertions, 131 deletions
diff --git a/contrib/llvm-project/libcxx/src/thread.cpp b/contrib/llvm-project/libcxx/src/thread.cpp
index 289c457cd5a5..73f22f12d8cc 100644
--- a/contrib/llvm-project/libcxx/src/thread.cpp
+++ b/contrib/llvm-project/libcxx/src/thread.cpp
@@ -15,104 +15,89 @@
#include <vector>
#if __has_include(<unistd.h>)
-# include <unistd.h> // for sysconf
+# include <unistd.h> // for sysconf
#endif
#if defined(__NetBSD__)
-#pragma weak pthread_create // Do not create libpthread dependency
+# pragma weak pthread_create // Do not create libpthread dependency
#endif
#if defined(_LIBCPP_WIN32API)
-#include <windows.h>
+# include <windows.h>
#endif
#if defined(__ELF__) && defined(_LIBCPP_LINK_PTHREAD_LIB)
-#pragma comment(lib, "pthread")
+# pragma comment(lib, "pthread")
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
-thread::~thread()
-{
- if (!__libcpp_thread_isnull(&__t_))
- terminate();
+thread::~thread() {
+ if (!__libcpp_thread_isnull(&__t_))
+ terminate();
}
-void
-thread::join()
-{
- int ec = EINVAL;
- if (!__libcpp_thread_isnull(&__t_))
- {
- ec = __libcpp_thread_join(&__t_);
- if (ec == 0)
- __t_ = _LIBCPP_NULL_THREAD;
- }
-
- if (ec)
- __throw_system_error(ec, "thread::join failed");
+void thread::join() {
+ int ec = EINVAL;
+ if (!__libcpp_thread_isnull(&__t_)) {
+ ec = __libcpp_thread_join(&__t_);
+ if (ec == 0)
+ __t_ = _LIBCPP_NULL_THREAD;
+ }
+
+ if (ec)
+ __throw_system_error(ec, "thread::join failed");
}
-void
-thread::detach()
-{
- int ec = EINVAL;
- if (!__libcpp_thread_isnull(&__t_))
- {
- ec = __libcpp_thread_detach(&__t_);
- if (ec == 0)
- __t_ = _LIBCPP_NULL_THREAD;
- }
-
- if (ec)
- __throw_system_error(ec, "thread::detach failed");
+void thread::detach() {
+ int ec = EINVAL;
+ if (!__libcpp_thread_isnull(&__t_)) {
+ ec = __libcpp_thread_detach(&__t_);
+ if (ec == 0)
+ __t_ = _LIBCPP_NULL_THREAD;
+ }
+
+ if (ec)
+ __throw_system_error(ec, "thread::detach failed");
}
-unsigned
-thread::hardware_concurrency() noexcept
-{
+unsigned thread::hardware_concurrency() noexcept {
#if defined(_SC_NPROCESSORS_ONLN)
- long result = sysconf(_SC_NPROCESSORS_ONLN);
- // sysconf returns -1 if the name is invalid, the option does not exist or
- // does not have a definite limit.
- // if sysconf returns some other negative number, we have no idea
- // what is going on. Default to something safe.
- if (result < 0)
- return 0;
- return static_cast<unsigned>(result);
+ long result = sysconf(_SC_NPROCESSORS_ONLN);
+ // sysconf returns -1 if the name is invalid, the option does not exist or
+ // does not have a definite limit.
+ // if sysconf returns some other negative number, we have no idea
+ // what is going on. Default to something safe.
+ if (result < 0)
+ return 0;
+ return static_cast<unsigned>(result);
#elif defined(_LIBCPP_WIN32API)
- SYSTEM_INFO info;
- GetSystemInfo(&info);
- return info.dwNumberOfProcessors;
-#else // defined(CTL_HW) && defined(HW_NCPU)
- // TODO: grovel through /proc or check cpuid on x86 and similar
- // instructions on other architectures.
-# if defined(_LIBCPP_WARNING)
- _LIBCPP_WARNING("hardware_concurrency not yet implemented")
-# else
-# warning hardware_concurrency not yet implemented
-# endif
- return 0; // Means not computable [thread.thread.static]
+ SYSTEM_INFO info;
+ GetSystemInfo(&info);
+ return info.dwNumberOfProcessors;
+#else // defined(CTL_HW) && defined(HW_NCPU)
+ // TODO: grovel through /proc or check cpuid on x86 and similar
+ // instructions on other architectures.
+# if defined(_LIBCPP_WARNING)
+ _LIBCPP_WARNING("hardware_concurrency not yet implemented")
+# else
+# warning hardware_concurrency not yet implemented
+# endif
+ return 0; // Means not computable [thread.thread.static]
#endif // defined(CTL_HW) && defined(HW_NCPU)
}
-namespace this_thread
-{
+namespace this_thread {
-void
-sleep_for(const chrono::nanoseconds& ns)
-{
- if (ns > chrono::nanoseconds::zero())
- {
- __libcpp_thread_sleep_for(ns);
- }
+void sleep_for(const chrono::nanoseconds& ns) {
+ if (ns > chrono::nanoseconds::zero()) {
+ __libcpp_thread_sleep_for(ns);
+ }
}
-} // this_thread
+} // namespace this_thread
-__thread_specific_ptr<__thread_struct>&
-__thread_local_data()
-{
+__thread_specific_ptr<__thread_struct>& __thread_local_data() {
// Even though __thread_specific_ptr's destructor doesn't actually destroy
// anything (see comments there), we can't call it at all because threads may
// outlive the static variable and calling its destructor means accessing an
@@ -125,89 +110,64 @@ __thread_local_data()
// __thread_struct_imp
template <class T>
-class _LIBCPP_HIDDEN __hidden_allocator
-{
+class _LIBCPP_HIDDEN __hidden_allocator {
public:
- typedef T value_type;
+ typedef T value_type;
- T* allocate(size_t __n)
- {return static_cast<T*>(::operator new(__n * sizeof(T)));}
- void deallocate(T* __p, size_t) {::operator delete(static_cast<void*>(__p));}
+ T* allocate(size_t __n) { return static_cast<T*>(::operator new(__n * sizeof(T))); }
+ void deallocate(T* __p, size_t) { ::operator delete(static_cast<void*>(__p)); }
- size_t max_size() const {return size_t(~0) / sizeof(T);}
+ size_t max_size() const { return size_t(~0) / sizeof(T); }
};
-class _LIBCPP_HIDDEN __thread_struct_imp
-{
- typedef vector<__assoc_sub_state*,
- __hidden_allocator<__assoc_sub_state*> > _AsyncStates;
- typedef vector<pair<condition_variable*, mutex*>,
- __hidden_allocator<pair<condition_variable*, mutex*> > > _Notify;
+class _LIBCPP_HIDDEN __thread_struct_imp {
+ typedef vector<__assoc_sub_state*, __hidden_allocator<__assoc_sub_state*> > _AsyncStates;
+ typedef vector<pair<condition_variable*, mutex*>, __hidden_allocator<pair<condition_variable*, mutex*> > > _Notify;
+
+ _AsyncStates async_states_;
+ _Notify notify_;
- _AsyncStates async_states_;
- _Notify notify_;
+ __thread_struct_imp(const __thread_struct_imp&);
+ __thread_struct_imp& operator=(const __thread_struct_imp&);
- __thread_struct_imp(const __thread_struct_imp&);
- __thread_struct_imp& operator=(const __thread_struct_imp&);
public:
- __thread_struct_imp() {}
- ~__thread_struct_imp();
+ __thread_struct_imp() {}
+ ~__thread_struct_imp();
- void notify_all_at_thread_exit(condition_variable* cv, mutex* m);
- void __make_ready_at_thread_exit(__assoc_sub_state* __s);
+ void notify_all_at_thread_exit(condition_variable* cv, mutex* m);
+ void __make_ready_at_thread_exit(__assoc_sub_state* __s);
};
-__thread_struct_imp::~__thread_struct_imp()
-{
- for (_Notify::iterator i = notify_.begin(), e = notify_.end();
- i != e; ++i)
- {
- i->first->notify_all();
- i->second->unlock();
- }
- for (_AsyncStates::iterator i = async_states_.begin(), e = async_states_.end();
- i != e; ++i)
- {
- (*i)->__make_ready();
- (*i)->__release_shared();
- }
+__thread_struct_imp::~__thread_struct_imp() {
+ for (_Notify::iterator i = notify_.begin(), e = notify_.end(); i != e; ++i) {
+ i->first->notify_all();
+ i->second->unlock();
+ }
+ for (_AsyncStates::iterator i = async_states_.begin(), e = async_states_.end(); i != e; ++i) {
+ (*i)->__make_ready();
+ (*i)->__release_shared();
+ }
}
-void
-__thread_struct_imp::notify_all_at_thread_exit(condition_variable* cv, mutex* m)
-{
- notify_.push_back(pair<condition_variable*, mutex*>(cv, m));
+void __thread_struct_imp::notify_all_at_thread_exit(condition_variable* cv, mutex* m) {
+ notify_.push_back(pair<condition_variable*, mutex*>(cv, m));
}
-void
-__thread_struct_imp::__make_ready_at_thread_exit(__assoc_sub_state* __s)
-{
- async_states_.push_back(__s);
- __s->__add_shared();
+void __thread_struct_imp::__make_ready_at_thread_exit(__assoc_sub_state* __s) {
+ async_states_.push_back(__s);
+ __s->__add_shared();
}
// __thread_struct
-__thread_struct::__thread_struct()
- : __p_(new __thread_struct_imp)
-{
-}
+__thread_struct::__thread_struct() : __p_(new __thread_struct_imp) {}
-__thread_struct::~__thread_struct()
-{
- delete __p_;
-}
+__thread_struct::~__thread_struct() { delete __p_; }
-void
-__thread_struct::notify_all_at_thread_exit(condition_variable* cv, mutex* m)
-{
- __p_->notify_all_at_thread_exit(cv, m);
+void __thread_struct::notify_all_at_thread_exit(condition_variable* cv, mutex* m) {
+ __p_->notify_all_at_thread_exit(cv, m);
}
-void
-__thread_struct::__make_ready_at_thread_exit(__assoc_sub_state* __s)
-{
- __p_->__make_ready_at_thread_exit(__s);
-}
+void __thread_struct::__make_ready_at_thread_exit(__assoc_sub_state* __s) { __p_->__make_ready_at_thread_exit(__s); }
_LIBCPP_END_NAMESPACE_STD