/usr/include/ace/Time_Policy.h is in libace-dev 6.3.3+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | #ifndef ACE_TIME_POLICY_H
#define ACE_TIME_POLICY_H
// -*- C++ -*-
/**
* @file Time_Policy.h
*
* @author Carlos O'Ryan <coryan@atdesk.com>
* @author Martin Corino <mcorino@remedy.nl>
*/
#include /**/ "ace/pre.h"
#include /**/ "ace/config-all.h"
#include /**/ "ace/Time_Value_T.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_System_Time_Policy
*
* @brief Implement the system time policy for ACE.
*
* The most common time policy is to simply use
* ACE_OS::gettimeofday(), this class implements that policy, i.e., it
* simply calls that function.
*/
class ACE_Export ACE_System_Time_Policy
{
public:
/// Return the current time according to this policy
ACE_Time_Value_T<ACE_System_Time_Policy> operator() () const;
/// Noop. Just here to satisfy backwards compatibility demands.
void set_gettimeofday (ACE_Time_Value (*gettimeofday)(void));
};
/**
* @class ACE_HR_Time_Policy
*
* @brief Implement a time policy based on the ACE Highres timer.
*/
class ACE_Export ACE_HR_Time_Policy
{
public:
/// Return the current time according to this policy
ACE_Time_Value_T<ACE_HR_Time_Policy> operator() () const;
/// Noop. Just here to satisfy backwards compatibility demands.
void set_gettimeofday (ACE_Time_Value (*gettimeofday)(void));
};
/**
* @class ACE_FPointer_Timer_Policy
*
* @brief Implement a time policy based on a function pointer.
*
* This time policy allows dynamic changes to the source of time by
* using a function pointer.
*/
class ACE_Export ACE_FPointer_Time_Policy
{
public:
/**
* @brief Default constructor uses ACE_OS::gettimeofday()
*
* ACE_T requires a default constructor that leaves the
* policy in a functional state. Therefore, a null pointer would
* not be desirable, in other words, we need a non-trivial default
* constructor.
*/
ACE_FPointer_Time_Policy();
/**
* @typedef FPtr
*
* Short-hand for the right type of pointer to function.
*/
typedef ACE_Time_Value (*FPtr)();
/**
* @brief Constructor from a pointer to function.
*
* Construct from a pointer to function.
*/
ACE_FPointer_Time_Policy(FPtr f);
/// Return the current time according to this policy
ACE_Time_Value_T<ACE_FPointer_Time_Policy> operator()() const;
/// Satisfy backwards compatibility demands.
void set_gettimeofday (ACE_Time_Value (*gettimeofday)(void));
private:
FPtr function_;
};
class ACE_Dynamic_Time_Policy_Base; // forward decl
/**
* @class ACE_Delegating_Time_Policy
*
* @brief Implement a time policy that delegates to a dynamic
* time policy.
*/
class ACE_Export ACE_Delegating_Time_Policy
{
public:
ACE_Delegating_Time_Policy (ACE_Dynamic_Time_Policy_Base const * delegate = 0);
/// Return the current time according to this policy
ACE_Time_Value_T<ACE_Delegating_Time_Policy> operator()() const;
/// Set delegate
void set_delegate (ACE_Dynamic_Time_Policy_Base const * delegate);
/// Copy policy
ACE_Delegating_Time_Policy& operator =(ACE_Delegating_Time_Policy const & pol);
/// Noop. Just here to satisfy backwards compatibility demands.
void set_gettimeofday (ACE_Time_Value (*gettimeofday)(void));
private:
ACE_Dynamic_Time_Policy_Base const * delegate_;
};
/**
* @class ACE_Dynamic_Time_Policy_base
*
* @brief Abstract base class for dynamically loaded and/or shared
* time policies.
*/
class ACE_Export ACE_Dynamic_Time_Policy_Base
{
public:
virtual ~ACE_Dynamic_Time_Policy_Base ();
/// Return the current time according to this policy
ACE_Time_Value_T<ACE_Delegating_Time_Policy> operator()() const;
/// Noop. Just here to satisfy backwards compatibility demands.
void set_gettimeofday (ACE_Time_Value (*gettimeofday)(void));
protected:
/// Return the current time according to policy implementation.
virtual ACE_Time_Value_T<ACE_Delegating_Time_Policy> gettimeofday () const = 0;
};
/// Temporarily, for backwards compatibility reasons, this will
/// be the default time policy. In time to be replaced by
/// ACE_System_Time_Policy.
typedef ACE_FPointer_Time_Policy ACE_Default_Time_Policy;
#if defined ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION_EXPORT
template class ACE_Export ACE_Time_Value_T<ACE_System_Time_Policy>;
template class ACE_Export ACE_Time_Value_T<ACE_HR_Time_Policy>;
template class ACE_Export ACE_Time_Value_T<ACE_FPointer_Time_Policy>;
template class ACE_Export ACE_Time_Value_T<ACE_Delegating_Time_Policy>;
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION_EXPORT */
ACE_END_VERSIONED_NAMESPACE_DECL
#if defined (__ACE_INLINE__)
#include "ace/Time_Policy.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* ACE_TIME_POLICY_H */
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