Remove TimeValue class

[labath]

Summary

All usages have been replaced by appropriate std::chrono funcionality, and the
class is now unused. The only used part of the cpp file is the DumpTimePoint
function, which I have moved into the only caller (CommandObjectTarget.cpp).

include/lldb/Host/TimeValue.h

-//===-- TimeValue.h ---------------------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef liblldb_TimeValue_h_
-#define liblldb_TimeValue_h_
-
-#include "lldb/Host/PosixApi.h"
-
-#include "lldb/lldb-private.h"
-
-#include "llvm/Support/Chrono.h"
-
-#include <stdint.h>
-
-namespace lldb_private {
-
-void DumpTimePoint(llvm::sys::TimePoint<>, Stream &s, uint32_t width = 0);
-
-class TimeValue {
-public:
-  static const uint64_t MicroSecPerSec = 1000000UL;
-  static const uint64_t NanoSecPerSec = 1000000000UL;
-  static const uint64_t NanoSecPerMicroSec = 1000U;
-  static const uint64_t NanoSecPerMilliSec = 1000000UL;
-
-  //------------------------------------------------------------------
-  // Constructors and Destructors
-  //------------------------------------------------------------------
-  TimeValue();
-  TimeValue(const TimeValue &rhs);
-  TimeValue(const struct timespec &ts);
-  explicit TimeValue(uint32_t seconds, uint64_t nanos = 0);
-  TimeValue(const llvm::sys::TimePoint<> point)
-      : m_nano_seconds(point.time_since_epoch().count()) {}
-  ~TimeValue();
-
-  //------------------------------------------------------------------
-  // Operators
-  //------------------------------------------------------------------
-  const TimeValue &operator=(const TimeValue &rhs);
-  operator llvm::sys::TimePoint<>() {
-    return llvm::sys::TimePoint<>(std::chrono::nanoseconds(m_nano_seconds));
-  }
-
-  void Clear();
-
-  uint64_t GetAsNanoSecondsSinceJan1_1970() const;
-
-  uint64_t GetAsMicroSecondsSinceJan1_1970() const;
-
-  uint64_t GetAsSecondsSinceJan1_1970() const;
-
-  struct timespec GetAsTimeSpec() const;
-
-  bool IsValid() const;
-
-  void OffsetWithSeconds(uint64_t sec);
-
-  void OffsetWithMicroSeconds(uint64_t usec);
-
-  void OffsetWithNanoSeconds(uint64_t nsec);
-
-  static TimeValue Now();
-
-
-  /// Returns only the seconds component of the TimeValue. The nanoseconds
-  /// portion is ignored. No rounding is performed.
-  /// @brief Retrieve the seconds component
-  uint32_t seconds() const { return m_nano_seconds / NanoSecPerSec; }
-
-  /// Returns only the nanoseconds component of the TimeValue. The seconds
-  /// portion is ignored.
-  /// @brief Retrieve the nanoseconds component.
-  uint32_t nanoseconds() const { return m_nano_seconds % NanoSecPerSec; }
-
-  /// Returns only the fractional portion of the TimeValue rounded down to the
-  /// nearest microsecond (divide by one thousand).
-  /// @brief Retrieve the fractional part as microseconds;
-  uint32_t microseconds() const {
-    return (m_nano_seconds % NanoSecPerSec) / NanoSecPerMicroSec;
-  }
-
-  /// Returns only the fractional portion of the TimeValue rounded down to the
-  /// nearest millisecond (divide by one million).
-  /// @brief Retrieve the milliseconds component;
-  uint32_t milliseconds() const { return m_nano_seconds / NanoSecPerMilliSec; }
-
-protected:
-  //------------------------------------------------------------------
-  // Classes that inherit from TimeValue can see and modify these
-  //------------------------------------------------------------------
-  uint64_t m_nano_seconds;
-};
-
-bool operator==(const TimeValue &lhs, const TimeValue &rhs);
-bool operator!=(const TimeValue &lhs, const TimeValue &rhs);
-bool operator<(const TimeValue &lhs, const TimeValue &rhs);
-bool operator<=(const TimeValue &lhs, const TimeValue &rhs);
-bool operator>(const TimeValue &lhs, const TimeValue &rhs);
-bool operator>=(const TimeValue &lhs, const TimeValue &rhs);
-
-uint64_t operator-(const TimeValue &lhs, const TimeValue &rhs);
-
-} // namespace lldb_private
-
-#endif // liblldb_TimeValue_h_

include/lldb/lldb-forward.h

 class ThreadPlanRunToAddress;
 class ThreadPlanStepInstruction;
 class ThreadPlanStepOut;
 class ThreadPlanStepOverBreakpoint;
 class ThreadPlanStepRange;
 class ThreadPlanStepThrough;
 class ThreadPlanTracer;
 class ThreadSpec;
-class TimeValue;
 class Type;
 class TypeAndOrName;
 class TypeCategoryMap;
 class TypeImpl;
 class TypeList;
 class TypeMap;
 class TypeListImpl;
 class TypeMemberImpl;

lldb.xcodeproj/project.pbxproj

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source/Commands/CommandObjectTarget.cpp

 #include "lldb/Core/ModuleSpec.h"
 #include "lldb/Core/Section.h"
 #include "lldb/Core/State.h"
 #include "lldb/Core/Timer.h"
 #include "lldb/Core/ValueObjectVariable.h"
 #include "lldb/DataFormatters/ValueObjectPrinter.h"
 #include "lldb/Host/StringConvert.h"
 #include "lldb/Host/Symbols.h"
-#include "lldb/Host/TimeValue.h"
 #include "lldb/Interpreter/Args.h"
 #include "lldb/Interpreter/CommandInterpreter.h"
 #include "lldb/Interpreter/CommandReturnObject.h"
 #include "lldb/Interpreter/OptionGroupArchitecture.h"
 #include "lldb/Interpreter/OptionGroupBoolean.h"
 #include "lldb/Interpreter/OptionGroupFile.h"
 #include "lldb/Interpreter/OptionGroupFormat.h"
 #include "lldb/Interpreter/OptionGroupPlatform.h"
for (uint32_t i = 0; i < num_targets; ++i) {
         DumpTargetInfo(i, target_sp.get(), is_selected ? "* " : "  ",
                        show_stopped_process_status, strm);
       }
     }
   }
   return num_targets;
 }
 
+// TODO: Remove this once llvm can pretty-print time points
+static void DumpTimePoint(llvm::sys::TimePoint<> tp, Stream &s, uint32_t width) {
+#ifndef LLDB_DISABLE_POSIX
+  char time_buf[32];
+  time_t time = llvm::sys::toTimeT(tp);
+  char *time_cstr = ::ctime_r(&time, time_buf);
+  if (time_cstr) {
+    char *newline = ::strpbrk(time_cstr, "\n\r");
+    if (newline)
+      *newline = '\0';
+    if (width > 0)
+      s.Printf("%-*s", width, time_cstr);
+    else
+      s.PutCString(time_cstr);
+  } else if (width > 0)
+    s.Printf("%-*s", width, "");
+#endif
+}
+
 #pragma mark CommandObjectTargetCreate
 
 //-------------------------------------------------------------------------
 // "target create"
 //-------------------------------------------------------------------------
 
 class CommandObjectTargetCreate : public CommandObjectParsed {
 public:

source/Host/CMakeLists.txt

add_host_subdirectory(common
   common/SocketAddress.cpp
   common/SoftwareBreakpoint.cpp
   common/StringConvert.cpp
   common/Symbols.cpp
   common/TCPSocket.cpp
   common/Terminal.cpp
   common/ThisThread.cpp
   common/ThreadLauncher.cpp
-  common/TimeValue.cpp
   common/XML.cpp
   common/UDPSocket.cpp
   )
 
 # Keep track of whether we want to provide a define for the
 # Python's architecture-specific lib path (i.e. where a
 # Python lldb module would go).
 set (get_python_libdir 0)

source/Host/common/TimeValue.cpp

-//===-- 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 "lldb/Host/Config.h"
-
-// C Includes
-#include <cstring>
-#include <stddef.h>
-#include <time.h>
-
-#ifdef _MSC_VER
-#include "lldb/Host/windows/windows.h"
-#endif
-
-// C++ Includes
-#include <chrono>
-
-// Other libraries and framework includes
-// Project includes
-#include "lldb/Core/Stream.h"
-
-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((uint64_t)ts.tv_sec * NanoSecPerSec + ts.tv_nsec) {}
-
-TimeValue::TimeValue(uint32_t seconds, uint64_t nanos)
-    : m_nano_seconds((uint64_t)seconds * NanoSecPerSec + nanos) {}
-
-//----------------------------------------------------------------------
-// Destructor
-//----------------------------------------------------------------------
-TimeValue::~TimeValue() {}
-
-uint64_t TimeValue::GetAsNanoSecondsSinceJan1_1970() const {
-  return m_nano_seconds;
-}
-
-uint64_t TimeValue::GetAsMicroSecondsSinceJan1_1970() const {
-  return m_nano_seconds / NanoSecPerMicroSec;
-}
-
-uint64_t TimeValue::GetAsSecondsSinceJan1_1970() const {
-  return m_nano_seconds / NanoSecPerSec;
-}
-
-struct timespec TimeValue::GetAsTimeSpec() const {
-  struct timespec ts;
-  ts.tv_sec = m_nano_seconds / NanoSecPerSec;
-  ts.tv_nsec = m_nano_seconds % NanoSecPerSec;
-  return ts;
-}
-
-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 * NanoSecPerSec;
-}
-
-void TimeValue::OffsetWithMicroSeconds(uint64_t usec) {
-  m_nano_seconds += usec * NanoSecPerMicroSec;
-}
-
-void TimeValue::OffsetWithNanoSeconds(uint64_t nsec) { m_nano_seconds += nsec; }
-
-TimeValue TimeValue::Now() {
-  using namespace std::chrono;
-  auto now = system_clock::now();
-  auto ns_since_epoch =
-      duration_cast<std::chrono::nanoseconds>(now.time_since_epoch()).count();
-
-  return TimeValue(0, ns_since_epoch);
-}
-
-//----------------------------------------------------------------------
-// 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();
-}
-
-void lldb_private::DumpTimePoint(llvm::sys::TimePoint<> tp, Stream &s, uint32_t width) {
-#ifndef LLDB_DISABLE_POSIX
-  char time_buf[32];
-  time_t time = llvm::sys::toTimeT(tp);
-  char *time_cstr = ::ctime_r(&time, time_buf);
-  if (time_cstr) {
-    char *newline = ::strpbrk(time_cstr, "\n\r");
-    if (newline)
-      *newline = '\0';
-    if (width > 0)
-      s.Printf("%-*s", width, time_cstr);
-    else
-      s.PutCString(time_cstr);
-  } else if (width > 0)
-    s.Printf("%-*s", width, "");
-#endif
-}
-