libcxx initial import
llvm-svn: 103490
diff --git a/libcxx/src/condition_variable.cpp b/libcxx/src/condition_variable.cpp
new file mode 100644
index 0000000..14a6d27
--- /dev/null
+++ b/libcxx/src/condition_variable.cpp
@@ -0,0 +1,64 @@
+//===-------------------- condition_variable.cpp --------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "condition_variable"
+#include "thread"
+#include "system_error"
+#include "cassert"
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+condition_variable::~condition_variable()
+{
+ int e = pthread_cond_destroy(&__cv_);
+// assert(e == 0);
+}
+
+void
+condition_variable::notify_one()
+{
+ pthread_cond_signal(&__cv_);
+}
+
+void
+condition_variable::notify_all()
+{
+ pthread_cond_broadcast(&__cv_);
+}
+
+void
+condition_variable::wait(unique_lock<mutex>& lk)
+{
+ if (!lk.owns_lock())
+ __throw_system_error(EPERM,
+ "condition_variable::wait: mutex not locked");
+ int ec = pthread_cond_wait(&__cv_, lk.mutex()->native_handle());
+ if (ec)
+ __throw_system_error(ec, "condition_variable wait failed");
+}
+
+void
+condition_variable::__do_timed_wait(unique_lock<mutex>& lk,
+ chrono::time_point<chrono::system_clock, chrono::nanoseconds> tp)
+{
+ using namespace chrono;
+ if (!lk.owns_lock())
+ __throw_system_error(EPERM,
+ "condition_variable::timed wait: mutex not locked");
+ nanoseconds d = tp.time_since_epoch();
+ 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());
+ 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");
+}
+
+_LIBCPP_END_NAMESPACE_STD
