Vendor import of llvm trunk r126079:

http://llvm.org/svn/llvm-project/llvm/trunk@126079

1 files changed, 0 insertions, 382 deletions

diff --git a/include/llvm/System/TimeValue.h b/include/llvm/System/TimeValue.h
deleted file mode 100644
index b82647f..0000000
--- a/include/llvm/System/TimeValue.h
+++ /dev/null
@@ -1,382 +0,0 @@
-//===-- TimeValue.h - Declare OS TimeValue Concept --------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-//  This header file declares the operating system TimeValue concept.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/System/DataTypes.h"
-#include <string>
-
-#ifndef LLVM_SYSTEM_TIMEVALUE_H
-#define LLVM_SYSTEM_TIMEVALUE_H
-
-namespace llvm {
-namespace sys {
-  /// This class is used where a precise fixed point in time is required. The
-  /// range of TimeValue spans many hundreds of billions of years both past and
-  /// present.  The precision of TimeValue is to the nanosecond. However, the
-  /// actual precision of its values will be determined by the resolution of
-  /// the system clock. The TimeValue class is used in conjunction with several
-  /// other lib/System interfaces to specify the time at which a call should
-  /// timeout, etc.
-  /// @since 1.4
-  /// @brief Provides an abstraction for a fixed point in time.
-  class TimeValue {
-
-  /// @name Constants
-  /// @{
-  public:
-
-    /// A constant TimeValue representing the smallest time
-    /// value permissable by the class. MinTime is some point
-    /// in the distant past, about 300 billion years BCE.
-    /// @brief The smallest possible time value.
-    static const TimeValue MinTime;
-
-    /// A constant TimeValue representing the largest time
-    /// value permissable by the class. MaxTime is some point
-    /// in the distant future, about 300 billion years AD.
-    /// @brief The largest possible time value.
-    static const TimeValue MaxTime;
-
-    /// A constant TimeValue representing the base time,
-    /// or zero time of 00:00:00 (midnight) January 1st, 2000.
-    /// @brief 00:00:00 Jan 1, 2000 UTC.
-    static const TimeValue ZeroTime;
-
-    /// A constant TimeValue for the Posix base time which is
-    /// 00:00:00 (midnight) January 1st, 1970.
-    /// @brief 00:00:00 Jan 1, 1970 UTC.
-    static const TimeValue PosixZeroTime;
-
-    /// A constant TimeValue for the Win32 base time which is
-    /// 00:00:00 (midnight) January 1st, 1601.
-    /// @brief 00:00:00 Jan 1, 1601 UTC.
-    static const TimeValue Win32ZeroTime;
-
-  /// @}
-  /// @name Types
-  /// @{
-  public:
-    typedef int64_t SecondsType;    ///< Type used for representing seconds.
-    typedef int32_t NanoSecondsType;///< Type used for representing nanoseconds.
-
-    enum TimeConversions {
-      NANOSECONDS_PER_SECOND = 1000000000,  ///< One Billion
-      MICROSECONDS_PER_SECOND = 1000000,    ///< One Million
-      MILLISECONDS_PER_SECOND = 1000,       ///< One Thousand
-      NANOSECONDS_PER_MICROSECOND = 1000,   ///< One Thousand
-      NANOSECONDS_PER_MILLISECOND = 1000000,///< One Million
-      NANOSECONDS_PER_POSIX_TICK = 100,     ///< Posix tick is 100 Hz (10ms)
-      NANOSECONDS_PER_WIN32_TICK = 100      ///< Win32 tick is 100 Hz (10ms)
-    };
-
-  /// @}
-  /// @name Constructors
-  /// @{
-  public:
-    /// Caller provides the exact value in seconds and nanoseconds. The
-    /// \p nanos argument defaults to zero for convenience.
-    /// @brief Explicit constructor
-    explicit TimeValue (SecondsType seconds, NanoSecondsType nanos = 0)
-      : seconds_( seconds ), nanos_( nanos ) { this->normalize(); }
-
-    /// Caller provides the exact value as a double in seconds with the
-    /// fractional part representing nanoseconds.
-    /// @brief Double Constructor.
-    explicit TimeValue( double new_time )
-      : seconds_( 0 ) , nanos_ ( 0 ) {
-      SecondsType integer_part = static_cast<SecondsType>( new_time );
-      seconds_ = integer_part;
-      nanos_ = static_cast<NanoSecondsType>( (new_time -
-               static_cast<double>(integer_part)) * NANOSECONDS_PER_SECOND );
-      this->normalize();
-    }
-
-    /// This is a static constructor that returns a TimeValue that represents
-    /// the current time.
-    /// @brief Creates a TimeValue with the current time (UTC).
-    static TimeValue now();
-
-  /// @}
-  /// @name Operators
-  /// @{
-  public:
-    /// Add \p that to \p this.
-    /// @returns this
-    /// @brief Incrementing assignment operator.
-    TimeValue& operator += (const TimeValue& that ) {
-      this->seconds_ += that.seconds_  ;
-      this->nanos_ += that.nanos_ ;
-      this->normalize();
-      return *this;
-    }
-
-    /// Subtract \p that from \p this.
-    /// @returns this
-    /// @brief Decrementing assignment operator.
-    TimeValue& operator -= (const TimeValue &that ) {
-      this->seconds_ -= that.seconds_ ;
-      this->nanos_ -= that.nanos_ ;
-      this->normalize();
-      return *this;
-    }
-
-    /// Determine if \p this is less than \p that.
-    /// @returns True iff *this < that.
-    /// @brief True if this < that.
-    int operator < (const TimeValue &that) const { return that > *this; }
-
-    /// Determine if \p this is greather than \p that.
-    /// @returns True iff *this > that.
-    /// @brief True if this > that.
-    int operator > (const TimeValue &that) const {
-      if ( this->seconds_ > that.seconds_ ) {
-          return 1;
-      } else if ( this->seconds_ == that.seconds_ ) {
-          if ( this->nanos_ > that.nanos_ ) return 1;
-      }
-      return 0;
-    }
-
-    /// Determine if \p this is less than or equal to \p that.
-    /// @returns True iff *this <= that.
-    /// @brief True if this <= that.
-    int operator <= (const TimeValue &that) const { return that >= *this; }
-
-    /// Determine if \p this is greater than or equal to \p that.
-    /// @returns True iff *this >= that.
-    /// @brief True if this >= that.
-    int operator >= (const TimeValue &that) const {
-      if ( this->seconds_ > that.seconds_ ) {
-          return 1;
-      } else if ( this->seconds_ == that.seconds_ ) {
-          if ( this->nanos_ >= that.nanos_ ) return 1;
-      }
-      return 0;
-    }
-
-    /// Determines if two TimeValue objects represent the same moment in time.
-    /// @brief True iff *this == that.
-    /// @brief True if this == that.
-    int operator == (const TimeValue &that) const {
-      return (this->seconds_ == that.seconds_) &&
-             (this->nanos_ == that.nanos_);
-    }
-
-    /// Determines if two TimeValue objects represent times that are not the
-    /// same.
-    /// @return True iff *this != that.
-    /// @brief True if this != that.
-    int operator != (const TimeValue &that) const { return !(*this == that); }
-
-    /// Adds two TimeValue objects together.
-    /// @returns The sum of the two operands as a new TimeValue
-    /// @brief Addition operator.
-    friend TimeValue operator + (const TimeValue &tv1, const TimeValue &tv2);
-
-    /// Subtracts two TimeValue objects.
-    /// @returns The difference of the two operands as a new TimeValue
-    /// @brief Subtraction operator.
-    friend TimeValue operator - (const TimeValue &tv1, const TimeValue &tv2);
-
-  /// @}
-  /// @name Accessors
-  /// @{
-  public:
-
-    /// Returns only the seconds component of the TimeValue. The nanoseconds
-    /// portion is ignored. No rounding is performed.
-    /// @brief Retrieve the seconds component
-    SecondsType seconds() const { return seconds_; }
-
-    /// Returns only the nanoseconds component of the TimeValue. The seconds
-    /// portion is ignored.
-    /// @brief Retrieve the nanoseconds component.
-    NanoSecondsType nanoseconds() const { return nanos_; }
-
-    /// 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 nanos_ / NANOSECONDS_PER_MICROSECOND;
-    }
-
-    /// Returns only the fractional portion of the TimeValue rounded down to the
-    /// nearest millisecond (divide by one million).
-    /// @brief Retrieve the fractional part as milliseconds;
-    uint32_t milliseconds() const {
-      return nanos_ / NANOSECONDS_PER_MILLISECOND;
-    }
-
-    /// Returns the TimeValue as a number of microseconds. Note that the value
-    /// returned can overflow because the range of a uint64_t is smaller than
-    /// the range of a TimeValue. Nevertheless, this is useful on some operating
-    /// systems and is therefore provided.
-    /// @brief Convert to a number of microseconds (can overflow)
-    uint64_t usec() const {
-      return seconds_ * MICROSECONDS_PER_SECOND +
-             ( nanos_ / NANOSECONDS_PER_MICROSECOND );
-    }
-
-    /// Returns the TimeValue as a number of milliseconds. Note that the value
-    /// returned can overflow because the range of a uint64_t is smaller than
-    /// the range of a TimeValue. Nevertheless, this is useful on some operating
-    /// systems and is therefore provided.
-    /// @brief Convert to a number of milliseconds (can overflow)
-    uint64_t msec() const {
-      return seconds_ * MILLISECONDS_PER_SECOND +
-             ( nanos_ / NANOSECONDS_PER_MILLISECOND );
-    }
-
-    /// Converts the TimeValue into the corresponding number of "ticks" for
-    /// Posix, correcting for the difference in Posix zero time.
-    /// @brief Convert to unix time (100 nanoseconds since 12:00:00a Jan 1,1970)
-    uint64_t toPosixTime() const {
-      uint64_t result = seconds_ - PosixZeroTime.seconds_;
-      result += nanos_ / NANOSECONDS_PER_POSIX_TICK;
-      return result;
-    }
-
-    /// Converts the TimeValue into the corresponding number of seconds
-    /// since the epoch (00:00:00 Jan 1,1970).
-    uint64_t toEpochTime() const {
-      return seconds_ - PosixZeroTime.seconds_;
-    }
-
-    /// Converts the TimeValue into the corresponding number of "ticks" for
-    /// Win32 platforms, correcting for the difference in Win32 zero time.
-    /// @brief Convert to windows time (seconds since 12:00:00a Jan 1, 1601)
-    uint64_t toWin32Time() const {
-      uint64_t result = seconds_ - Win32ZeroTime.seconds_;
-      result += nanos_ / NANOSECONDS_PER_WIN32_TICK;
-      return result;
-    }
-
-    /// Provides the seconds and nanoseconds as results in its arguments after
-    /// correction for the Posix zero time.
-    /// @brief Convert to timespec time (ala POSIX.1b)
-    void getTimespecTime( uint64_t& seconds, uint32_t& nanos ) const {
-      seconds = seconds_ - PosixZeroTime.seconds_;
-      nanos = nanos_;
-    }
-
-    /// Provides conversion of the TimeValue into a readable time & date.
-    /// @returns std::string containing the readable time value
-    /// @brief Convert time to a string.
-    std::string str() const;
-
-  /// @}
-  /// @name Mutators
-  /// @{
-  public:
-    /// The seconds component of the TimeValue is set to \p sec without
-    /// modifying the nanoseconds part.  This is useful for whole second
-    /// arithmetic.
-    /// @brief Set the seconds component.
-    void seconds (SecondsType sec ) {
-      this->seconds_ = sec;
-      this->normalize();
-    }
-
-    /// The nanoseconds component of the TimeValue is set to \p nanos without
-    /// modifying the seconds part. This is useful for basic computations
-    /// involving just the nanoseconds portion. Note that the TimeValue will be
-    /// normalized after this call so that the fractional (nanoseconds) portion
-    /// will have the smallest equivalent value.
-    /// @brief Set the nanoseconds component using a number of nanoseconds.
-    void nanoseconds ( NanoSecondsType nanos ) {
-      this->nanos_ = nanos;
-      this->normalize();
-    }
-
-    /// The seconds component remains unchanged.
-    /// @brief Set the nanoseconds component using a number of microseconds.
-    void microseconds ( int32_t micros ) {
-      this->nanos_ = micros * NANOSECONDS_PER_MICROSECOND;
-      this->normalize();
-    }
-
-    /// The seconds component remains unchanged.
-    /// @brief Set the nanoseconds component using a number of milliseconds.
-    void milliseconds ( int32_t millis ) {
-      this->nanos_ = millis * NANOSECONDS_PER_MILLISECOND;
-      this->normalize();
-    }
-
-    /// @brief Converts from microsecond format to TimeValue format
-    void usec( int64_t microseconds ) {
-      this->seconds_ = microseconds / MICROSECONDS_PER_SECOND;
-      this->nanos_ = NanoSecondsType(microseconds % MICROSECONDS_PER_SECOND) *
-        NANOSECONDS_PER_MICROSECOND;
-      this->normalize();
-    }
-
-    /// @brief Converts from millisecond format to TimeValue format
-    void msec( int64_t milliseconds ) {
-      this->seconds_ = milliseconds / MILLISECONDS_PER_SECOND;
-      this->nanos_ = NanoSecondsType(milliseconds % MILLISECONDS_PER_SECOND) *
-        NANOSECONDS_PER_MILLISECOND;
-      this->normalize();
-    }
-
-    /// Converts the \p seconds argument from PosixTime to the corresponding
-    /// TimeValue and assigns that value to \p this.
-    /// @brief Convert seconds form PosixTime to TimeValue
-    void fromEpochTime( SecondsType seconds ) {
-      seconds_ = seconds + PosixZeroTime.seconds_;
-      nanos_ = 0;
-      this->normalize();
-    }
-
-    /// Converts the \p win32Time argument from Windows FILETIME to the
-    /// corresponding TimeValue and assigns that value to \p this.
-    /// @brief Convert seconds form Windows FILETIME to TimeValue
-    void fromWin32Time( uint64_t win32Time ) {
-      this->seconds_ = win32Time / 10000000 + Win32ZeroTime.seconds_;
-      this->nanos_ = NanoSecondsType(win32Time  % 10000000) * 100;
-    }
-
-  /// @}
-  /// @name Implementation
-  /// @{
-  private:
-    /// This causes the values to be represented so that the fractional
-    /// part is minimized, possibly incrementing the seconds part.
-    /// @brief Normalize to canonical form.
-    void normalize();
-
-  /// @}
-  /// @name Data
-  /// @{
-  private:
-    /// Store the values as a <timeval>.
-    SecondsType      seconds_;///< Stores the seconds part of the TimeVal
-    NanoSecondsType  nanos_;  ///< Stores the nanoseconds part of the TimeVal
-  /// @}
-
-  };
-
-inline TimeValue operator + (const TimeValue &tv1, const TimeValue &tv2) {
-  TimeValue sum (tv1.seconds_ + tv2.seconds_, tv1.nanos_ + tv2.nanos_);
-  sum.normalize ();
-  return sum;
-}
-
-inline TimeValue operator - (const TimeValue &tv1, const TimeValue &tv2) {
-  TimeValue difference (tv1.seconds_ - tv2.seconds_, tv1.nanos_ - tv2.nanos_ );
-  difference.normalize ();
-  return difference;
-}
-
-}
-}
-
-#endif