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jroelofs/libcxx.diff

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libcxx.diff
Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt (revision 244611)
+++ CMakeLists.txt (working copy)
@@ -166,7 +166,7 @@
# Setup Compiler Flags
#===============================================================================
-include(HandleLibCXXABI) # Steup the ABI library flags
+include(HandleLibCXXABI) # Setup the ABI library flags
# Include macros for adding and removing libc++ flags.
include(HandleLibcxxFlags)
@@ -246,9 +246,8 @@
define_if_not(LIBCXX_ENABLE_MONOTONIC_CLOCK -D_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
define_if_not(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS -D_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS)
+# Sanitizer flags =============================================================
-# Sanitizer flags
-
# Configure for sanitizers. If LIBCXX_BUILT_STANDALONE then we have to do
# the flag translation ourselves. Othewise LLVM's CMakeList.txt will handle it.
if (LIBCXX_BUILT_STANDALONE)
@@ -282,10 +281,29 @@
message(WARNING "LLVM_USE_SANITIZER is not supported on this platform.")
endif()
endif()
+
+# Thread API ==================================================================
+if(UNIX AND LIBCXX_HAS_PTHREAD_LIB)
+ set(LIBCXX_THREAD_API _LIBCPP_PTHREAD)
+elseif(WIN32)
+ set(LIBCXX_THREAD_API _LIBCPP_WIN32THREAD)
+else()
+ set(LIBCXX_THREAD_API _LIBCPP_NOTHREADS)
+endif()
+
#===============================================================================
+# Build the site configuration file
+#===============================================================================
+
+configure_file(
+ include/__config_site.in
+ ${CMAKE_BINARY_DIR}/include/c++/v1/__config_site
+ @ONLY)
+
+#===============================================================================
# Setup Source Code And Tests
#===============================================================================
-include_directories(include)
+include_directories(include "${CMAKE_BINARY_DIR}/include/c++/v1")
add_subdirectory(include)
add_subdirectory(lib)
if (LIBCXX_INCLUDE_TESTS)
Index: include/CMakeLists.txt
===================================================================
--- include/CMakeLists.txt (revision 244611)
+++ include/CMakeLists.txt (working copy)
@@ -5,6 +5,7 @@
PATTERN "*"
PATTERN "CMakeLists.txt" EXCLUDE
PATTERN ".svn" EXCLUDE
+ PATTERN "__config_site.in" EXCLUDE
${LIBCXX_SUPPORT_HEADER_PATTERN}
)
Index: include/__config
===================================================================
--- include/__config (revision 244611)
+++ include/__config (working copy)
@@ -11,6 +11,8 @@
#ifndef _LIBCPP_CONFIG
#define _LIBCPP_CONFIG
+#include <__config_site>
+
#if !defined(_MSC_VER) || defined(__clang__)
#pragma GCC system_header
#endif
@@ -737,6 +739,13 @@
# define _LIBCPP_WEAK __attribute__((__weak__))
#endif
+// Thread API
+#ifndef _LIBCPP_HAS_NO_THREADS
+# ifndef _LIBCPP_THREAD_API
+# error "No thread API"
+# endif // _LIBCPP_THREAD_API
+#endif // _LIBCPP_HAS_NO_THREADS
+
#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) && !defined(_LIBCPP_HAS_NO_THREADS)
# error _LIBCPP_HAS_NO_MONOTONIC_CLOCK may only be defined when \
_LIBCPP_HAS_NO_THREADS is defined.
Index: include/__config_site.in
===================================================================
--- include/__config_site.in (revision 0)
+++ include/__config_site.in (working copy)
@@ -0,0 +1,8 @@
+#ifndef _LIBCPP_CONFIG_SITE
+#define _LIBCPP_CONFIG_SITE
+
+#define _LIBCPP_PTHREAD 1
+
+#define _LIBCPP_THREAD_API @LIBCXX_THREAD_API@
+
+#endif
Index: include/__mutex_base
===================================================================
--- include/__mutex_base (revision 244611)
+++ include/__mutex_base (working copy)
@@ -14,7 +14,8 @@
#include <__config>
#include <chrono>
#include <system_error>
-#include <pthread.h>
+#include <support/mutex.h>
+#include <support/condition_variable.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
@@ -26,14 +27,15 @@
class _LIBCPP_TYPE_VIS mutex
{
- pthread_mutex_t __m_;
+ typedef __libcpp_support::__os_mutex __mutex_type;
+ __mutex_type __m_;
public:
_LIBCPP_INLINE_VISIBILITY
#ifndef _LIBCPP_HAS_NO_CONSTEXPR
- constexpr mutex() _NOEXCEPT : __m_(PTHREAD_MUTEX_INITIALIZER) {}
+ constexpr mutex() _NOEXCEPT : __m_(__libcpp_support::__os_mutex_init) {}
#else
- mutex() _NOEXCEPT {__m_ = (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;}
+ mutex() _NOEXCEPT {__m_ = __libcpp_support::__os_mutex_init;}
#endif
~mutex();
@@ -46,7 +48,7 @@
bool try_lock() _NOEXCEPT;
void unlock() _NOEXCEPT;
- typedef pthread_mutex_t* native_handle_type;
+ typedef __mutex_type* native_handle_type;
_LIBCPP_INLINE_VISIBILITY native_handle_type native_handle() {return &__m_;}
};
@@ -266,13 +268,14 @@
class _LIBCPP_TYPE_VIS condition_variable
{
- pthread_cond_t __cv_;
+ typedef __libcpp_support::__os_cond_var __cond_var_type;
+ __cond_var_type __cv_;
public:
_LIBCPP_INLINE_VISIBILITY
#ifndef _LIBCPP_HAS_NO_CONSTEXPR
- constexpr condition_variable() : __cv_(PTHREAD_COND_INITIALIZER) {}
+ constexpr condition_variable() : __cv_(__libcpp_support::__os_cond_var_init) {}
#else
- condition_variable() {__cv_ = (pthread_cond_t)PTHREAD_COND_INITIALIZER;}
+ condition_variable() {__cv_ = __libcpp_support::__os_cond_var_init;}
#endif
~condition_variable();
@@ -310,7 +313,7 @@
const chrono::duration<_Rep, _Period>& __d,
_Predicate __pred);
- typedef pthread_cond_t* native_handle_type;
+ typedef __cond_var_type* native_handle_type;
_LIBCPP_INLINE_VISIBILITY native_handle_type native_handle() {return &__cv_;}
private:
Index: include/mutex
===================================================================
--- include/mutex (revision 244611)
+++ include/mutex (working copy)
@@ -179,7 +179,7 @@
#ifndef _LIBCPP_HAS_NO_VARIADICS
#include <tuple>
#endif
-#include <sched.h>
+#include <support/thread.h>
#include <__undef_min_max>
@@ -193,7 +193,8 @@
class _LIBCPP_TYPE_VIS recursive_mutex
{
- pthread_mutex_t __m_;
+ typedef __libcpp_support::__os_mutex __mutex_type;
+ __mutex_type __m_;
public:
recursive_mutex();
@@ -206,9 +207,9 @@
public:
void lock();
bool try_lock() _NOEXCEPT;
- void unlock() _NOEXCEPT;
+ void unlock() _NOEXCEPT;
- typedef pthread_mutex_t* native_handle_type;
+ typedef __mutex_type* native_handle_type;
_LIBCPP_INLINE_VISIBILITY
native_handle_type native_handle() {return &__m_;}
};
@@ -257,10 +258,10 @@
class _LIBCPP_TYPE_VIS recursive_timed_mutex
{
- mutex __m_;
- condition_variable __cv_;
- size_t __count_;
- pthread_t __id_;
+ mutex __m_;
+ condition_variable __cv_;
+ size_t __count_;
+ __libcpp_support::__os_thread_id __id_;
public:
recursive_timed_mutex();
~recursive_timed_mutex();
@@ -286,9 +287,10 @@
recursive_timed_mutex::try_lock_until(const chrono::time_point<_Clock, _Duration>& __t)
{
using namespace chrono;
- pthread_t __id = pthread_self();
+ using namespace __libcpp_support;
+ __os_thread_id __id = __os_get_current_thread_id();
unique_lock<mutex> lk(__m_);
- if (pthread_equal(__id, __id_))
+ if (__os_thread_id_compare(__id, __id_) == 0)
{
if (__count_ == numeric_limits<size_t>::max())
return false;
@@ -360,7 +362,7 @@
break;
}
}
- sched_yield();
+ __libcpp_support::__os_yield();
{
unique_lock<_L1> __u1(__l1);
if (__l0.try_lock())
@@ -369,7 +371,7 @@
break;
}
}
- sched_yield();
+ __libcpp_support::__os_yield();
}
}
@@ -394,7 +396,7 @@
}
}
++__i;
- sched_yield();
+ __libcpp_support::__os_yield();
break;
case 1:
{
@@ -410,7 +412,7 @@
__i = 0;
else
__i += 2;
- sched_yield();
+ __libcpp_support::__os_yield();
break;
default:
__lock_first(__i - 2, __l2, __l3..., __l0, __l1);
@@ -531,8 +533,6 @@
(*__p)();
}
-_LIBCPP_FUNC_VIS void __call_once(volatile unsigned long&, void*, void(*)(void*));
-
#ifndef _LIBCPP_HAS_NO_VARIADICS
template<class _Callable, class... _Args>
@@ -545,7 +545,7 @@
typedef tuple<_Callable&&, _Args&&...> _Gp;
_Gp __f(_VSTD::forward<_Callable>(__func), _VSTD::forward<_Args>(__args)...);
__call_once_param<_Gp> __p(__f);
- __call_once(__flag.__state_, &__p, &__call_once_proxy<_Gp>);
+ __libcpp_support::__os_call_once(__flag.__state_, &__p, &__call_once_proxy<_Gp>);
}
}
@@ -559,7 +559,7 @@
if (__libcpp_relaxed_load(&__flag.__state_) != ~0ul)
{
__call_once_param<_Callable> __p(__func);
- __call_once(__flag.__state_, &__p, &__call_once_proxy<_Callable>);
+ __libcpp_support::__call_once(__flag.__state_, &__p, &__call_once_proxy<_Callable>);
}
}
@@ -571,7 +571,7 @@
if (__flag.__state_ != ~0ul)
{
__call_once_param<const _Callable> __p(__func);
- __call_once(__flag.__state_, &__p, &__call_once_proxy<const _Callable>);
+ __libcpp_support::__call_once(__flag.__state_, &__p, &__call_once_proxy<const _Callable>);
}
}
Index: include/thread
===================================================================
--- include/thread (revision 244611)
+++ include/thread (working copy)
@@ -98,8 +98,7 @@
#ifndef _LIBCPP_HAS_NO_VARIADICS
#include <tuple>
#endif
-#include <pthread.h>
-#include <sched.h>
+#include <support/thread.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
@@ -116,7 +115,7 @@
template <class _Tp>
class __thread_specific_ptr
{
- pthread_key_t __key_;
+ __libcpp_support::__os_tl_key __key_;
__thread_specific_ptr(const __thread_specific_ptr&);
__thread_specific_ptr& operator=(const __thread_specific_ptr&);
@@ -129,7 +128,7 @@
~__thread_specific_ptr();
_LIBCPP_INLINE_VISIBILITY
- pointer get() const {return static_cast<_Tp*>(pthread_getspecific(__key_));}
+ pointer get() const {return static_cast<_Tp*>(__libcpp_support::__os_tl_get(__key_));}
_LIBCPP_INLINE_VISIBILITY
pointer operator*() const {return *get();}
_LIBCPP_INLINE_VISIBILITY
@@ -148,7 +147,9 @@
template <class _Tp>
__thread_specific_ptr<_Tp>::__thread_specific_ptr()
{
- int __ec = pthread_key_create(&__key_, &__thread_specific_ptr::__at_thread_exit);
+ int __ec = __libcpp_support::__os_tl_create(
+ &__key_,
+ &__thread_specific_ptr::__at_thread_exit);
#ifndef _LIBCPP_NO_EXCEPTIONS
if (__ec)
throw system_error(error_code(__ec, system_category()),
@@ -159,7 +160,7 @@
template <class _Tp>
__thread_specific_ptr<_Tp>::~__thread_specific_ptr()
{
- pthread_key_delete(__key_);
+ __libcpp_support::__os_tl_destroy(__key_);
}
template <class _Tp>
@@ -167,7 +168,7 @@
__thread_specific_ptr<_Tp>::release()
{
pointer __p = get();
- pthread_setspecific(__key_, 0);
+ __libcpp_support::__os_tl_set(__key_, 0);
return __p;
}
@@ -176,7 +177,7 @@
__thread_specific_ptr<_Tp>::reset(pointer __p)
{
pointer __p_old = get();
- pthread_setspecific(__key_, __p);
+ __libcpp_support::__os_tl_set(__key_, __p);
delete __p_old;
}
@@ -197,7 +198,7 @@
// FIXME: pthread_t is a pointer on Darwin but a long on Linux.
// NULL is the no-thread value on Darwin. Someone needs to check
// on other platforms. We assume 0 works everywhere for now.
- pthread_t __id_;
+ __libcpp_support::__os_thread_id __id_;
public:
_LIBCPP_INLINE_VISIBILITY
@@ -205,13 +206,13 @@
friend _LIBCPP_INLINE_VISIBILITY
bool operator==(__thread_id __x, __thread_id __y) _NOEXCEPT
- {return __x.__id_ == __y.__id_;}
+ {return __libcpp_support::__os_thread_id_compare(__x.__id_, __y.__id_) == 0;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator!=(__thread_id __x, __thread_id __y) _NOEXCEPT
{return !(__x == __y);}
friend _LIBCPP_INLINE_VISIBILITY
bool operator< (__thread_id __x, __thread_id __y) _NOEXCEPT
- {return __x.__id_ < __y.__id_;}
+ {return __libcpp_support::__os_thread_id_compare(__x.__id_, __y.__id_) < 0;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator<=(__thread_id __x, __thread_id __y) _NOEXCEPT
{return !(__y < __x);}
@@ -227,11 +228,11 @@
_LIBCPP_INLINE_VISIBILITY
basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os, __thread_id __id)
- {return __os << __id.__id_;}
+ {return __libcpp_support::__os_write_to_ostream(__os, __id.__id_);}
private:
_LIBCPP_INLINE_VISIBILITY
- __thread_id(pthread_t __id) : __id_(__id) {}
+ __thread_id(__libcpp_support::__os_thread_id __id) : __id_(__id) {}
friend __thread_id this_thread::get_id() _NOEXCEPT;
friend class _LIBCPP_TYPE_VIS thread;
@@ -245,7 +246,7 @@
_LIBCPP_INLINE_VISIBILITY
size_t operator()(__thread_id __v) const
{
- return hash<pthread_t>()(__v.__id_);
+ return hash<__libcpp_support::__os_thread_id>()(__v.__id_);
}
};
@@ -256,23 +257,24 @@
__thread_id
get_id() _NOEXCEPT
{
- return pthread_self();
+ return __libcpp_support::__os_get_current_thread_id();
}
} // this_thread
class _LIBCPP_TYPE_VIS thread
{
- pthread_t __t_;
+ typedef __libcpp_support::__os_thread __thread_type;
+ __thread_type __t_;
thread(const thread&);
thread& operator=(const thread&);
public:
typedef __thread_id id;
- typedef pthread_t native_handle_type;
+ typedef __thread_type native_handle_type;
_LIBCPP_INLINE_VISIBILITY
- thread() _NOEXCEPT : __t_(0) {}
+ thread() _NOEXCEPT : __t_(__libcpp_support::__os_thread_init) {}
#ifndef _LIBCPP_HAS_NO_VARIADICS
template <class _Fp, class ..._Args,
class = typename enable_if
@@ -300,7 +302,7 @@
void join();
void detach();
_LIBCPP_INLINE_VISIBILITY
- id get_id() const _NOEXCEPT {return __t_;}
+ id get_id() const _NOEXCEPT {return __libcpp_support::__os_get_thread_id(__t_);}
_LIBCPP_INLINE_VISIBILITY
native_handle_type native_handle() _NOEXCEPT {return __t_;}
@@ -356,7 +358,7 @@
typedef tuple<typename decay<_Fp>::type, typename decay<_Args>::type...> _Gp;
_VSTD::unique_ptr<_Gp> __p(new _Gp(__decay_copy(_VSTD::forward<_Fp>(__f)),
__decay_copy(_VSTD::forward<_Args>(__args))...));
- int __ec = pthread_create(&__t_, 0, &__thread_proxy<_Gp>, __p.get());
+ int __ec = __libcpp_support::__os_create_thread(&__t_, &__thread_proxy<_Gp>, __p.get());
if (__ec == 0)
__p.release();
else
@@ -379,7 +381,7 @@
thread::thread(_Fp __f)
{
std::unique_ptr<_Fp> __p(new _Fp(__f));
- int __ec = pthread_create(&__t_, 0, &__thread_proxy<_Fp>, __p.get());
+ int __ec = __libcpp_support::__os_create_thread(&__t_, &__thread_proxy<_Gp>, __p.get());
if (__ec == 0)
__p.release();
else
@@ -409,7 +411,10 @@
namespace this_thread
{
-_LIBCPP_FUNC_VIS void sleep_for(const chrono::nanoseconds& ns);
+inline _LIBCPP_FUNC_VIS void sleep_for(const chrono::nanoseconds& ns)
+{
+ __libcpp_support::__os_sleep_for(ns);
+}
template <class _Rep, class _Period>
void
@@ -454,7 +459,7 @@
}
inline _LIBCPP_INLINE_VISIBILITY
-void yield() _NOEXCEPT {sched_yield();}
+void yield() _NOEXCEPT {__libcpp_support::__os_yield();}
} // this_thread
Index: include/type_traits
===================================================================
--- include/type_traits (revision 244611)
+++ include/type_traits (working copy)
@@ -219,8 +219,8 @@
template <class>
struct __void_t { typedef void type; };
-template <class _Tp>
-struct __identity { typedef _Tp type; };
+template <class T>
+struct __identity { typedef T type; };
template <class _Tp, bool>
struct _LIBCPP_TYPE_VIS_ONLY __dependent_type : public _Tp {};
Index: lib/CMakeLists.txt
===================================================================
--- lib/CMakeLists.txt (revision 244611)
+++ lib/CMakeLists.txt (working copy)
@@ -8,6 +8,9 @@
elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "SunOS")
file(GLOB LIBCXX_SOLARIS_SOURCES ../src/support/solaris/*.c)
list(APPEND LIBCXX_SOURCES ${LIBCXX_SOLARIS_SOURCES})
+elseif(UNIX)
+ file(GLOB LIBCXX_PTHREAD_SOURCES ../src/support/pthread/*.cpp)
+ list(APPEND LIBCXX_SOURCES ${LIBCXX_PTHREAD_SOURCES})
endif()
# Add all the headers to the project for IDEs.
@@ -17,6 +20,9 @@
file( GLOB LIBCXX_WIN32_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/../include/support/win32/*.h)
list(APPEND LIBCXX_HEADERS ${LIBCXX_WIN32_HEADERS})
endif()
+if(XCODE)
+ file(GLOB_RECURSE LIBCXX_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/../include/support/pthread/*)
+ endif()
# Force them all into the headers dir on MSVC, otherwise they end up at
# project scope because they don't have extensions.
if (MSVC_IDE)
Index: src/algorithm.cpp
===================================================================
--- src/algorithm.cpp (revision 244611)
+++ src/algorithm.cpp (working copy)
@@ -48,14 +48,14 @@
template unsigned __sort5<__less<long double>&, long double*>(long double*, long double*, long double*, long double*, long double*, __less<long double>&);
#ifndef _LIBCPP_HAS_NO_THREADS
-static pthread_mutex_t __rs_mut = PTHREAD_MUTEX_INITIALIZER;
+static mutex __rs_mut;
#endif
unsigned __rs_default::__c_ = 0;
__rs_default::__rs_default()
{
#ifndef _LIBCPP_HAS_NO_THREADS
- pthread_mutex_lock(&__rs_mut);
+ __rs_mut.lock();
#endif
__c_ = 1;
}
@@ -69,7 +69,7 @@
{
#ifndef _LIBCPP_HAS_NO_THREADS
if (--__c_ == 0)
- pthread_mutex_unlock(&__rs_mut);
+ __rs_mut.unlock();
#else
--__c_;
#endif
Index: src/condition_variable.cpp
===================================================================
--- src/condition_variable.cpp (revision 244611)
+++ src/condition_variable.cpp (working copy)
@@ -18,21 +18,23 @@
_LIBCPP_BEGIN_NAMESPACE_STD
+using namespace __libcpp_support;
+
condition_variable::~condition_variable()
{
- pthread_cond_destroy(&__cv_);
+ __os_cond_var_destroy(&__cv_);
}
void
condition_variable::notify_one() _NOEXCEPT
{
- pthread_cond_signal(&__cv_);
+ __os_cond_var_notify_one(&__cv_);
}
void
condition_variable::notify_all() _NOEXCEPT
{
- pthread_cond_broadcast(&__cv_);
+ __os_cond_var_notify_all(&__cv_);
}
void
@@ -41,7 +43,7 @@
if (!lk.owns_lock())
__throw_system_error(EPERM,
"condition_variable::wait: mutex not locked");
- int ec = pthread_cond_wait(&__cv_, lk.mutex()->native_handle());
+ int ec = __os_cond_var_wait(&__cv_, lk.mutex()->native_handle());
if (ec)
__throw_system_error(ec, "condition_variable wait failed");
}
@@ -50,30 +52,10 @@
condition_variable::__do_timed_wait(unique_lock<mutex>& lk,
chrono::time_point<chrono::system_clock, chrono::nanoseconds> tp) _NOEXCEPT
{
- using namespace chrono;
if (!lk.owns_lock())
__throw_system_error(EPERM,
"condition_variable::timed wait: mutex not locked");
- nanoseconds d = tp.time_since_epoch();
- if (d > nanoseconds(0x59682F000000E941))
- d = nanoseconds(0x59682F000000E941);
- timespec ts;
- seconds s = duration_cast<seconds>(d);
- typedef decltype(ts.tv_sec) ts_sec;
- _LIBCPP_CONSTEXPR ts_sec ts_sec_max = numeric_limits<ts_sec>::max();
- if (s.count() < ts_sec_max)
- {
- ts.tv_sec = static_cast<ts_sec>(s.count());
- ts.tv_nsec = static_cast<decltype(ts.tv_nsec)>((d - s).count());
- }
- else
- {
- ts.tv_sec = ts_sec_max;
- ts.tv_nsec = giga::num - 1;
- }
- int ec = pthread_cond_timedwait(&__cv_, lk.mutex()->native_handle(), &ts);
- if (ec != 0 && ec != ETIMEDOUT)
- __throw_system_error(ec, "condition_variable timed_wait failed");
+ __os_cond_var_timed_wait(&__cv_, lk.mutex()->native_handle(), tp);
}
void
Index: src/memory.cpp
===================================================================
--- src/memory.cpp (revision 244611)
+++ src/memory.cpp (working copy)
@@ -127,15 +127,9 @@
#if __has_feature(cxx_atomic) && !defined(_LIBCPP_HAS_NO_THREADS)
static const std::size_t __sp_mut_count = 16;
-static pthread_mutex_t mut_back_imp[__sp_mut_count] =
-{
- PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER,
- PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER,
- PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER,
- PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER, PTHREAD_MUTEX_INITIALIZER
-};
+static mutex mut_back_imp[__sp_mut_count];
-static mutex* mut_back = reinterpret_cast<std::mutex*>(mut_back_imp);
+static mutex* mut_back = mut_back_imp;
_LIBCPP_CONSTEXPR __sp_mut::__sp_mut(void* p) _NOEXCEPT
: __lx(p)
Index: src/mutex.cpp
===================================================================
--- src/mutex.cpp (revision 244611)
+++ src/mutex.cpp (working copy)
@@ -12,7 +12,7 @@
#include "limits"
#include "system_error"
#include "cassert"
-#include "support/atomic_support.h"
+#include "support/thread.h"
_LIBCPP_BEGIN_NAMESPACE_STD
#ifndef _LIBCPP_HAS_NO_THREADS
@@ -21,15 +21,17 @@
const try_to_lock_t try_to_lock = {};
const adopt_lock_t adopt_lock = {};
+using namespace __libcpp_support;
+
mutex::~mutex()
{
- pthread_mutex_destroy(&__m_);
+ __os_mutex_destroy(&__m_);
}
void
mutex::lock()
{
- int ec = pthread_mutex_lock(&__m_);
+ int ec = __os_mutex_lock(&__m_);
if (ec)
__throw_system_error(ec, "mutex lock failed");
}
@@ -37,13 +39,13 @@
bool
mutex::try_lock() _NOEXCEPT
{
- return pthread_mutex_trylock(&__m_) == 0;
+ return __os_mutex_trylock(&__m_) == 0;
}
void
mutex::unlock() _NOEXCEPT
{
- int ec = pthread_mutex_unlock(&__m_);
+ int ec = __os_mutex_unlock(&__m_);
(void)ec;
assert(ec == 0);
}
@@ -52,36 +54,12 @@
recursive_mutex::recursive_mutex()
{
- pthread_mutexattr_t attr;
- int ec = pthread_mutexattr_init(&attr);
- if (ec)
- goto fail;
- ec = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
- if (ec)
- {
- pthread_mutexattr_destroy(&attr);
- goto fail;
- }
- ec = pthread_mutex_init(&__m_, &attr);
- if (ec)
- {
- pthread_mutexattr_destroy(&attr);
- goto fail;
- }
- ec = pthread_mutexattr_destroy(&attr);
- if (ec)
- {
- pthread_mutex_destroy(&__m_);
- goto fail;
- }
- return;
-fail:
- __throw_system_error(ec, "recursive_mutex constructor failed");
+ __os_recursive_mutex_init(&__m_);
}
recursive_mutex::~recursive_mutex()
{
- int e = pthread_mutex_destroy(&__m_);
+ int e = __os_recursive_mutex_destroy(&__m_);
(void)e;
assert(e == 0);
}
@@ -89,7 +67,7 @@
void
recursive_mutex::lock()
{
- int ec = pthread_mutex_lock(&__m_);
+ int ec = __os_recursive_mutex_lock(&__m_);
if (ec)
__throw_system_error(ec, "recursive_mutex lock failed");
}
@@ -97,7 +75,7 @@
void
recursive_mutex::unlock() _NOEXCEPT
{
- int e = pthread_mutex_unlock(&__m_);
+ int e = __os_recursive_mutex_unlock(&__m_);
(void)e;
assert(e == 0);
}
@@ -105,7 +83,7 @@
bool
recursive_mutex::try_lock() _NOEXCEPT
{
- return pthread_mutex_trylock(&__m_) == 0;
+ return __os_recursive_mutex_trylock(&__m_) == 0;
}
// timed_mutex
@@ -165,9 +143,9 @@
void
recursive_timed_mutex::lock()
{
- pthread_t id = pthread_self();
+ __os_thread_id id = __os_get_current_thread_id();
unique_lock<mutex> lk(__m_);
- if (pthread_equal(id, __id_))
+ if (__os_thread_id_compare(id, __id_) == 0)
{
if (__count_ == numeric_limits<size_t>::max())
__throw_system_error(EAGAIN, "recursive_timed_mutex lock limit reached");
@@ -183,9 +161,9 @@
bool
recursive_timed_mutex::try_lock() _NOEXCEPT
{
- pthread_t id = pthread_self();
+ __os_thread_id id = __os_get_current_thread_id();
unique_lock<mutex> lk(__m_, try_to_lock);
- if (lk.owns_lock() && (__count_ == 0 || pthread_equal(id, __id_)))
+ if (lk.owns_lock() && (__count_ == 0 || __os_thread_id_compare(id, __id_) == 0))
{
if (__count_ == numeric_limits<size_t>::max())
return false;
@@ -210,75 +188,4 @@
#endif // !_LIBCPP_HAS_NO_THREADS
-// If dispatch_once_f ever handles C++ exceptions, and if one can get to it
-// without illegal macros (unexpected macros not beginning with _UpperCase or
-// __lowercase), and if it stops spinning waiting threads, then call_once should
-// call into dispatch_once_f instead of here. Relevant radar this code needs to
-// keep in sync with: 7741191.
-
-#ifndef _LIBCPP_HAS_NO_THREADS
-static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
-static pthread_cond_t cv = PTHREAD_COND_INITIALIZER;
-#endif
-
-/// NOTE: Changes to flag are done via relaxed atomic stores
-/// even though the accesses are protected by a mutex because threads
-/// just entering 'call_once` concurrently read from flag.
-void
-__call_once(volatile unsigned long& flag, void* arg, void(*func)(void*))
-{
-#if defined(_LIBCPP_HAS_NO_THREADS)
- if (flag == 0)
- {
-#ifndef _LIBCPP_NO_EXCEPTIONS
- try
- {
-#endif // _LIBCPP_NO_EXCEPTIONS
- flag = 1;
- func(arg);
- flag = ~0ul;
-#ifndef _LIBCPP_NO_EXCEPTIONS
- }
- catch (...)
- {
- flag = 0ul;
- throw;
- }
-#endif // _LIBCPP_NO_EXCEPTIONS
- }
-#else // !_LIBCPP_HAS_NO_THREADS
- pthread_mutex_lock(&mut);
- while (flag == 1)
- pthread_cond_wait(&cv, &mut);
- if (flag == 0)
- {
-#ifndef _LIBCPP_NO_EXCEPTIONS
- try
- {
-#endif // _LIBCPP_NO_EXCEPTIONS
- __libcpp_relaxed_store(&flag, 1ul);
- pthread_mutex_unlock(&mut);
- func(arg);
- pthread_mutex_lock(&mut);
- __libcpp_relaxed_store(&flag, ~0ul);
- pthread_mutex_unlock(&mut);
- pthread_cond_broadcast(&cv);
-#ifndef _LIBCPP_NO_EXCEPTIONS
- }
- catch (...)
- {
- pthread_mutex_lock(&mut);
- __libcpp_relaxed_store(&flag, 0ul);
- pthread_mutex_unlock(&mut);
- pthread_cond_broadcast(&cv);
- throw;
- }
-#endif // _LIBCPP_NO_EXCEPTIONS
- }
- else
- pthread_mutex_unlock(&mut);
-#endif // !_LIBCPP_HAS_NO_THREADS
-
-}
-
_LIBCPP_END_NAMESPACE_STD
Index: src/thread.cpp
===================================================================
--- src/thread.cpp (revision 244611)
+++ src/thread.cpp (working copy)
@@ -32,6 +32,8 @@
_LIBCPP_BEGIN_NAMESPACE_STD
+using namespace __libcpp_support;
+
thread::~thread()
{
if (__t_ != 0)
@@ -41,7 +43,7 @@
void
thread::join()
{
- int ec = pthread_join(__t_, 0);
+ int ec = __os_thread_join(__t_);
#ifndef _LIBCPP_NO_EXCEPTIONS
if (ec)
throw system_error(error_code(ec, system_category()), "thread::join failed");
@@ -57,7 +59,7 @@
int ec = EINVAL;
if (__t_ != 0)
{
- ec = pthread_detach(__t_);
+ ec = __os_thread_detach(__t_);
if (ec == 0)
__t_ = 0;
}
@@ -101,37 +103,6 @@
#endif // defined(CTL_HW) && defined(HW_NCPU)
}
-namespace this_thread
-{
-
-void
-sleep_for(const chrono::nanoseconds& ns)
-{
- using namespace chrono;
- if (ns > nanoseconds::zero())
- {
- seconds s = duration_cast<seconds>(ns);
- timespec ts;
- typedef decltype(ts.tv_sec) ts_sec;
- _LIBCPP_CONSTEXPR ts_sec ts_sec_max = numeric_limits<ts_sec>::max();
- if (s.count() < ts_sec_max)
- {
- ts.tv_sec = static_cast<ts_sec>(s.count());
- ts.tv_nsec = static_cast<decltype(ts.tv_nsec)>((ns-s).count());
- }
- else
- {
- ts.tv_sec = ts_sec_max;
- ts.tv_nsec = giga::num - 1;
- }
-
- while (nanosleep(&ts, &ts) == -1 && errno == EINTR)
- ;
- }
-}
-
-} // this_thread
-
__thread_specific_ptr<__thread_struct>&
__thread_local_data()
{
Raw
libcxxabi.diff
Index: src/CMakeLists.txt
===================================================================
--- src/CMakeLists.txt (revision 244611)
+++ src/CMakeLists.txt (working copy)
@@ -34,7 +34,8 @@
endif()
endif()
-include_directories("${LIBCXXABI_LIBCXX_INCLUDES}")
+include_directories("${LIBCXXABI_LIBCXX_INCLUDES}"
+ "${CMAKE_BINARY_DIR}/include/c++/v1")
if (LIBCXXABI_HAS_CXA_THREAD_ATEXIT_IMPL)
add_definitions(-DHAVE___CXA_THREAD_ATEXIT_IMPL)
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