Added a kqueue class which isn't being used yet, but was part of trying to work around the limitations with the unix select() call and how it is limited to FD_SETSIZE file descriptors.

Also added a TimeSpecTimeout class which can be used with any calls that take a "struct timespec *" as an argument. It is used by the KQueue class.

Also updated some project settings.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@175377 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Utility/TimeSpecTimeout.cpp b/source/Utility/TimeSpecTimeout.cpp
new file mode 100644
index 0000000..33b3b4e
--- /dev/null
+++ b/source/Utility/TimeSpecTimeout.cpp
@@ -0,0 +1,48 @@
+//===--------------------- TimeSpecTimeout.cpp ------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "TimeSpecTimeout.h"
+
+using namespace lldb_private;
+
+const struct timespec *
+TimeSpecTimeout::SetAbsoluteTimeoutMircoSeconds32 (uint32_t timeout_usec)
+{
+    if (timeout_usec == UINT32_MAX)
+    {
+        m_infinite = true;
+    }
+    else
+    {
+        m_infinite = false;
+        TimeValue time_value(TimeValue::Now());
+        time_value.OffsetWithMicroSeconds(timeout_usec);
+        m_timespec = time_value.GetAsTimeSpec();
+    }
+    return GetTimeSpecPtr ();
+}
+
+const struct timespec *
+TimeSpecTimeout::SetRelativeTimeoutMircoSeconds32 (uint32_t timeout_usec)
+{
+    if (timeout_usec == UINT32_MAX)
+    {
+        m_infinite = true;
+    }
+    else
+    {
+        m_infinite = false;
+        TimeValue time_value;
+        time_value.OffsetWithMicroSeconds(timeout_usec);
+        m_timespec = time_value.GetAsTimeSpec();
+    }
+    return GetTimeSpecPtr ();
+}
+
+