Update to current libcxx.

This doesn't work yet as it needs to be customized for use with
emscripten still.

1 files changed, 17 insertions, 6 deletions

diff --git a/system/lib/libcxx/condition_variable.cpp b/system/lib/libcxx/condition_variable.cpp
index ca1dca32..de0f6f47 100644
--- a/system/lib/libcxx/condition_variable.cpp
+++ b/system/lib/libcxx/condition_variable.cpp
@@ -16,18 +16,17 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 
 condition_variable::~condition_variable()
 {
-    int e = pthread_cond_destroy(&__cv_);
-//     assert(e == 0);
+    pthread_cond_destroy(&__cv_);
 }
 
 void
-condition_variable::notify_one()
+condition_variable::notify_one() _NOEXCEPT
 {
     pthread_cond_signal(&__cv_);
 }
 
 void
-condition_variable::notify_all()
+condition_variable::notify_all() _NOEXCEPT
 {
     pthread_cond_broadcast(&__cv_);
 }
@@ -52,10 +51,22 @@ condition_variable::__do_timed_wait(unique_lock<mutex>& lk,
         __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);
-    ts.tv_sec = static_cast<decltype(ts.tv_sec)>(s.count());
-    ts.tv_nsec = static_cast<decltype(ts.tv_nsec)>((d - s).count());
+    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");