1 files changed, 0 insertions, 71 deletions
diff --git a/libcxx/include/__threading_support b/libcxx/include/__threading_support
index 4d867167c2b1..2242a6908529 100644
--- a/libcxx/include/__threading_support
+++ b/libcxx/include/__threading_support
@@ -29,16 +29,9 @@
 # include <__external_threading>
 #elif !defined(_LIBCPP_HAS_NO_THREADS)
 
-#if defined(__APPLE__) || defined(__MVS__)
-# define _LIBCPP_NO_NATIVE_SEMAPHORES
-#endif
-
 #if defined(_LIBCPP_HAS_THREAD_API_PTHREAD)
 # include <pthread.h>
 # include <sched.h>
-# ifndef _LIBCPP_NO_NATIVE_SEMAPHORES
-#   include <semaphore.h>
-# endif
 #elif defined(_LIBCPP_HAS_THREAD_API_C11)
 # include <threads.h>
 #endif
@@ -78,12 +71,6 @@ typedef pthread_mutex_t __libcpp_recursive_mutex_t;
 typedef pthread_cond_t __libcpp_condvar_t;
 #define _LIBCPP_CONDVAR_INITIALIZER PTHREAD_COND_INITIALIZER
 
-#ifndef _LIBCPP_NO_NATIVE_SEMAPHORES
-// Semaphore
-typedef sem_t __libcpp_semaphore_t;
-# define _LIBCPP_SEMAPHORE_MAX SEM_VALUE_MAX
-#endif
-
 // Execute once
 typedef pthread_once_t __libcpp_exec_once_flag;
 #define _LIBCPP_EXEC_ONCE_INITIALIZER PTHREAD_ONCE_INIT
@@ -149,12 +136,6 @@ typedef void* __libcpp_recursive_mutex_t[5];
 typedef void* __libcpp_condvar_t;
 #define _LIBCPP_CONDVAR_INITIALIZER 0
 
-// Semaphore
-typedef void* __libcpp_semaphore_t;
-#if defined(_LIBCPP_HAS_THREAD_API_WIN32)
-# define _LIBCPP_SEMAPHORE_MAX (::std::numeric_limits<long>::max())
-#endif
-
 // Execute Once
 typedef void* __libcpp_exec_once_flag;
 #define _LIBCPP_EXEC_ONCE_INITIALIZER 0
@@ -219,26 +200,6 @@ int __libcpp_condvar_timedwait(__libcpp_condvar_t *__cv, __libcpp_mutex_t *__m,
 _LIBCPP_THREAD_ABI_VISIBILITY
 int __libcpp_condvar_destroy(__libcpp_condvar_t* __cv);
 
-#ifndef _LIBCPP_NO_NATIVE_SEMAPHORES
-
-// Semaphore
-_LIBCPP_THREAD_ABI_VISIBILITY
-bool __libcpp_semaphore_init(__libcpp_semaphore_t* __sem, int __init);
-
-_LIBCPP_THREAD_ABI_VISIBILITY
-bool __libcpp_semaphore_destroy(__libcpp_semaphore_t* __sem);
-
-_LIBCPP_THREAD_ABI_VISIBILITY
-bool __libcpp_semaphore_post(__libcpp_semaphore_t* __sem);
-
-_LIBCPP_THREAD_ABI_VISIBILITY
-bool __libcpp_semaphore_wait(__libcpp_semaphore_t* __sem);
-
-_LIBCPP_THREAD_ABI_VISIBILITY
-bool __libcpp_semaphore_wait_timed(__libcpp_semaphore_t* __sem, chrono::nanoseconds const& __ns);
-
-#endif // _LIBCPP_NO_NATIVE_SEMAPHORES
-
 // Execute once
 _LIBCPP_THREAD_ABI_VISIBILITY
 int __libcpp_execute_once(__libcpp_exec_once_flag *flag,
@@ -452,38 +413,6 @@ int __libcpp_condvar_destroy(__libcpp_condvar_t *__cv)
   return pthread_cond_destroy(__cv);
 }
 
-#ifndef _LIBCPP_NO_NATIVE_SEMAPHORES
-
-// Semaphore
-bool __libcpp_semaphore_init(__libcpp_semaphore_t* __sem, int __init)
-{
-    return sem_init(__sem, 0, __init) == 0;
-}
-
-bool __libcpp_semaphore_destroy(__libcpp_semaphore_t* __sem)
-{
-    return sem_destroy(__sem) == 0;
-}
-
-bool __libcpp_semaphore_post(__libcpp_semaphore_t* __sem)
-{
-    return sem_post(__sem) == 0;
-}
-
-bool __libcpp_semaphore_wait(__libcpp_semaphore_t* __sem)
-{
-    return sem_wait(__sem) == 0;
-}
-
-bool __libcpp_semaphore_wait_timed(__libcpp_semaphore_t* __sem, chrono::nanoseconds const& __ns)
-{
-    auto const __abs_time = chrono::system_clock::now().time_since_epoch() + __ns;
-    __libcpp_timespec_t __ts = __thread_detail::__convert_to_timespec(__abs_time);
-    return sem_timedwait(__sem, &__ts) == 0;
-}
-
-#endif //_LIBCPP_NO_NATIVE_SEMAPHORES
-
 // Execute once
 int __libcpp_execute_once(__libcpp_exec_once_flag *flag,
                           void (*init_routine)()) {