Patch from Jay Cornwall that modifies the LLDB "Host" layer to reuse more

code between linux, darwin and BSD.

llvm-svn: 113263

1 files changed, 180 insertions, 0 deletions

diff --git a/lldb/source/Host/common/TimeValue.cpp b/lldb/source/Host/common/TimeValue.cpp
new file mode 100644
index 00000000000..1ae6a512c32
--- /dev/null
+++ b/lldb/source/Host/common/TimeValue.cpp
@@ -0,0 +1,180 @@
+//===-- TimeValue.cpp -------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Host/TimeValue.h"
+#include <stddef.h>
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+
+#define NSEC_PER_USEC   1000ull
+#define USEC_PER_SEC    1000000ull
+#define NSEC_PER_SEC    1000000000ull
+
+using namespace lldb_private;
+
+//----------------------------------------------------------------------
+// TimeValue constructor
+//----------------------------------------------------------------------
+TimeValue::TimeValue() :
+    m_nano_seconds (0)
+{
+}
+
+//----------------------------------------------------------------------
+// TimeValue copy constructor
+//----------------------------------------------------------------------
+TimeValue::TimeValue(const TimeValue& rhs) :
+    m_nano_seconds (rhs.m_nano_seconds)
+{
+}
+
+TimeValue::TimeValue(const struct timespec& ts) :
+    m_nano_seconds (ts.tv_sec * NSEC_PER_SEC + ts.tv_nsec)
+{
+}
+
+TimeValue::TimeValue(const struct timeval& tv) :
+    m_nano_seconds (tv.tv_sec * NSEC_PER_SEC + tv.tv_usec * NSEC_PER_USEC)
+{
+}
+
+//----------------------------------------------------------------------
+// Destructor
+//----------------------------------------------------------------------
+TimeValue::~TimeValue()
+{
+}
+
+
+uint64_t
+TimeValue::GetAsNanoSecondsSinceJan1_1970() const
+{
+    return m_nano_seconds;
+}
+
+uint64_t
+TimeValue::GetAsMicroSecondsSinceJan1_1970() const
+{
+    return m_nano_seconds / NSEC_PER_USEC;
+}
+
+struct timespec
+TimeValue::GetAsTimeSpec () const
+{
+    struct timespec ts;
+    ts.tv_sec = m_nano_seconds / NSEC_PER_SEC;
+    ts.tv_nsec = m_nano_seconds % NSEC_PER_SEC;
+    return ts;
+}
+
+struct timeval
+TimeValue::GetAsTimeVal () const
+{
+    struct timeval tv;
+    tv.tv_sec = m_nano_seconds / NSEC_PER_SEC;
+    tv.tv_usec = (m_nano_seconds % NSEC_PER_SEC) / NSEC_PER_USEC;
+    return tv;
+}
+
+void
+TimeValue::Clear ()
+{
+    m_nano_seconds = 0;
+}
+
+bool
+TimeValue::IsValid () const
+{
+    return m_nano_seconds != 0;
+}
+
+void
+TimeValue::OffsetWithSeconds (uint64_t sec)
+{
+    m_nano_seconds += sec * NSEC_PER_SEC;
+}
+
+void
+TimeValue::OffsetWithMicroSeconds (uint64_t usec)
+{
+    m_nano_seconds += usec * NSEC_PER_USEC;
+}
+
+void
+TimeValue::OffsetWithNanoSeconds (uint64_t nsec)
+{
+    m_nano_seconds += nsec;
+}
+
+TimeValue
+TimeValue::Now()
+{
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    TimeValue now(tv);
+    return now;
+}
+
+//----------------------------------------------------------------------
+// TimeValue assignment operator
+//----------------------------------------------------------------------
+const TimeValue&
+TimeValue::operator=(const TimeValue& rhs)
+{
+    m_nano_seconds = rhs.m_nano_seconds;
+    return *this;
+}
+
+
+bool
+lldb_private::operator == (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() == rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+bool
+lldb_private::operator != (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() != rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+bool
+lldb_private::operator <  (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() < rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+bool
+lldb_private::operator <= (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() <= rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+bool
+lldb_private::operator >  (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() > rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+bool
+lldb_private::operator >= (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() >= rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+uint64_t
+lldb_private::operator - (const TimeValue &lhs, const TimeValue &rhs)
+{
+    return lhs.GetAsNanoSecondsSinceJan1_1970() - rhs.GetAsNanoSecondsSinceJan1_1970();
+}
+
+