#include <coherence/util/AtomicCounter.hpp>
Inherits Object.
Public Types | |
typedef spec::Handle | Handle |
AtomicCounter Handle definition. | |
typedef spec::View | View |
AtomicCounter View definition. | |
typedef spec::Holder | Holder |
AtomicCounter Holder definition. | |
Public Member Functions | |
virtual int64_t | increment (int64_t c=1) |
Incremenet the value by c, and return the new value. | |
virtual int64_t | postIncrement (int64_t c=1) |
Incremenet the value by c, and return the original value. | |
virtual int64_t | decrement (int64_t c=1) |
Decrement the value by c, and return the new value. | |
virtual int64_t | postDecrement (int64_t c=1) |
Decrement the value by c, and return the original value. | |
virtual int64_t | getCount () const |
Return the current value of the counter. | |
virtual int64_t | update (int64_t cAssume, int64_t cNew) |
Update the current value, only if it is equal to the assumed value. | |
virtual int64_t | setCount (int64_t cNew) |
Update the current value, and return the previous value. | |
virtual TypedHandle < const String > | toString () const |
Output a human-readable description of this Object to the given stream. Note that when overriding this method the return type must be TypedHandle<const String> rather then String::View. These two types are assignment compatible but not equivalent and declaring the override with String::View will not be a compatible override. coherence::lang::operator<<(std::ostream, Object::View) is defined and will call into the toString method, to output Objects. If a managed String object is desired, the COH_TO_STRING macro can be used to build up a String from streamable contents and is generally how toString() will be implemented.
Object::View vKey = ... Object::View vValue = ... std::cout << vKey << " = " << vValue << std::endl; String::View vs = COH_TO_STRING(vKey << " = " << vValue); The COH_TO_STRING macro is also the most common way to implement the toString method. For example:
virtual TypedHandle<const String> Person::toString() const { return COH_TO_STRING("Name: " << f_sName << " SSN: " << f_nSSN); }
| |
Protected Member Functions | |
AtomicCounter (int64_t cValue=0) | |
Create an AtomicCounter initialized with a specified value. | |
AtomicCounter (const AtomicCounter &that) | |
Copy constructor. | |
Protected Attributes | |
NativeAtomic64 | m_atomic |
The underlying native implementation. |
AtomicCounter | ( | int64_t | cValue = 0 |
) | [protected] |
Create an AtomicCounter initialized with a specified value.
cValue | the initial value of the Atomic64 |
virtual int64_t increment | ( | int64_t | c = 1 |
) | [virtual] |
Incremenet the value by c, and return the new value.
c | the amount to increment the counter by |
virtual int64_t postIncrement | ( | int64_t | c = 1 |
) | [virtual] |
Incremenet the value by c, and return the original value.
c | the amount to increment the counter by |
virtual int64_t decrement | ( | int64_t | c = 1 |
) | [virtual] |
Decrement the value by c, and return the new value.
c | the amount to decrement the counter by |
virtual int64_t postDecrement | ( | int64_t | c = 1 |
) | [virtual] |
Decrement the value by c, and return the original value.
c | the amount to decrement the counter by |
virtual int64_t getCount | ( | ) | const [virtual] |
Return the current value of the counter.
virtual int64_t update | ( | int64_t | cAssume, | |
int64_t | cNew | |||
) | [virtual] |
Update the current value, only if it is equal to the assumed value.
cAssume | the assumed old value | |
cNew | the new value |
virtual int64_t setCount | ( | int64_t | cNew | ) | [virtual] |
Update the current value, and return the previous value.
cNew | the new value |