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      1 //===-- TimeValue.h ---------------------------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #ifndef liblldb_TimeValue_h_
     11 #define liblldb_TimeValue_h_
     12 
     13 // C Includes
     14 #include <stdint.h>
     15 #include <sys/time.h>
     16 
     17 // BEGIN: MinGW work around
     18 #if !defined(_STRUCT_TIMESPEC) && !defined(HAVE_STRUCT_TIMESPEC)
     19 #include <pthread.h>
     20 #endif
     21 // END: MinGW work around
     22 
     23 // C++ Includes
     24 // Other libraries and framework includes
     25 // Project includes
     26 #include "lldb/lldb-private.h"
     27 
     28 namespace lldb_private {
     29 
     30 class TimeValue
     31 {
     32 public:
     33     static const uint64_t MicroSecPerSec = 1000000UL;
     34     static const uint64_t NanoSecPerSec = 1000000000UL;
     35     static const uint64_t NanoSecPerMicroSec = 1000U;
     36 
     37     //------------------------------------------------------------------
     38     // Constructors and Destructors
     39     //------------------------------------------------------------------
     40     TimeValue();
     41     TimeValue(const TimeValue& rhs);
     42     TimeValue(const struct timespec& ts);
     43     TimeValue(const struct timeval& tv);
     44     ~TimeValue();
     45 
     46     //------------------------------------------------------------------
     47     // Operators
     48     //------------------------------------------------------------------
     49     const TimeValue&
     50     operator=(const TimeValue& rhs);
     51 
     52     void
     53     Clear ();
     54 
     55     uint64_t
     56     GetAsNanoSecondsSinceJan1_1970() const;
     57 
     58     uint64_t
     59     GetAsMicroSecondsSinceJan1_1970() const;
     60 
     61     uint64_t
     62     GetAsSecondsSinceJan1_1970() const;
     63 
     64     struct timespec
     65     GetAsTimeSpec () const;
     66 
     67     struct timeval
     68     GetAsTimeVal () const;
     69 
     70     bool
     71     IsValid () const;
     72 
     73     void
     74     OffsetWithSeconds (uint64_t sec);
     75 
     76     void
     77     OffsetWithMicroSeconds (uint64_t usec);
     78 
     79     void
     80     OffsetWithNanoSeconds (uint64_t nsec);
     81 
     82     static TimeValue
     83     Now();
     84 
     85     void
     86     Dump (Stream *s, uint32_t width = 0) const;
     87 
     88 protected:
     89     //------------------------------------------------------------------
     90     // Classes that inherit from TimeValue can see and modify these
     91     //------------------------------------------------------------------
     92     uint64_t m_nano_seconds;
     93 };
     94 
     95 bool operator == (const TimeValue &lhs, const TimeValue &rhs);
     96 bool operator != (const TimeValue &lhs, const TimeValue &rhs);
     97 bool operator <  (const TimeValue &lhs, const TimeValue &rhs);
     98 bool operator <= (const TimeValue &lhs, const TimeValue &rhs);
     99 bool operator >  (const TimeValue &lhs, const TimeValue &rhs);
    100 bool operator >= (const TimeValue &lhs, const TimeValue &rhs);
    101 
    102 uint64_t operator -(const TimeValue &lhs, const TimeValue &rhs);
    103 
    104 } // namespace lldb_private
    105 
    106 
    107 #endif  // liblldb_TimeValue_h_
    108