LibreOffice Module salhelper (master) 1
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A simple base implementation for reference-counted objects. More...
#include <simplereferenceobject.hxx>
Public Member Functions | |
SimpleReferenceObject () | |
void | acquire () |
void | release () |
Static Public Member Functions | |
static void * | operator new (std::size_t nSize) |
see general class documentation More... | |
static void * | operator new (std::size_t nSize, std::nothrow_t const &rNothrow) |
see general class documentation More... | |
static void | operator delete (void *pPtr) |
see general class documentation More... | |
static void | operator delete (void *pPtr, std::nothrow_t const &rNothrow) |
see general class documentation More... | |
Protected Member Functions | |
virtual | ~SimpleReferenceObject () COVERITY_NOEXCEPT_FALSE |
Protected Attributes | |
oslInterlockedCount | m_nCount |
Private Member Functions | |
SimpleReferenceObject (SimpleReferenceObject &) SAL_DELETED_FUNCTION | |
not implemented More... | |
void | operator= (SimpleReferenceObject) SAL_DELETED_FUNCTION |
not implemented More... | |
Static Private Member Functions | |
static void * | operator new[] (std::size_t) SAL_DELETED_FUNCTION |
see general class documentation More... | |
static void | operator delete[] (void *pPtr) SAL_DELETED_FUNCTION |
see general class documentation More... | |
A simple base implementation for reference-counted objects.
Classes that want to implement a reference-counting mechanism based on the acquire()/release() interface should derive from this class.
The reason to have class local operators new and delete here is technical. Imagine a class D derived from SimpleReferenceObject, but implemented in another shared library that happens to use different global operators new and delete from those used in this shared library (which, sadly, seems to be possible with shared libraries). Now, without the class local operators new and delete here, a code sequence like "new D" would use the global operator new as found in the other shared library, while the code sequence "delete this" in release() would use the global operator delete as found in this shared library—and these two operators would not be guaranteed to match.
There are no overloaded operators new and delete for placement new here, because it is felt that the concept of placement new does not work well with the concept of reference-counted objects; so it seems best to simply leave those operators out.
The same problem as with operators new and delete would also be there with operators new[] and delete[]. But since arrays of reference-counted objects are of no use, anyway, it seems best to simply define operators new[] and delete[] as deleted.
Definition at line 61 of file simplereferenceobject.hxx.
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inline |
Definition at line 64 of file simplereferenceobject.hxx.
References m_nCount.
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protectedvirtual |
Definition at line 27 of file simplereferenceobject.cxx.
References m_nCount.
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private |
not implemented
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inline |
Definition at line 72 of file simplereferenceobject.hxx.
References m_nCount.
Referenced by salhelper::TimerManager::checkForTimeout().
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static |
see general class documentation
Definition at line 48 of file simplereferenceobject.cxx.
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static |
see general class documentation
Definition at line 53 of file simplereferenceobject.cxx.
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staticprivate |
see general class documentation
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static |
see general class documentation
Definition at line 32 of file simplereferenceobject.cxx.
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static |
see general class documentation
Definition at line 37 of file simplereferenceobject.cxx.
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staticprivate |
see general class documentation
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private |
not implemented
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inline |
Definition at line 75 of file simplereferenceobject.hxx.
References m_nCount.
Referenced by salhelper::TimerManager::checkForTimeout().
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protected |
Definition at line 98 of file simplereferenceobject.hxx.
Referenced by ~SimpleReferenceObject().