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workaround for double-destruction bugs in compilers: with this, boost::exception objects should survive the case when the destructor is called twice.

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[SVN r61602]
This commit is contained in:
Emil Dotchevski
2010-04-27 01:14:03 +00:00
parent f10defd7a2
commit c251404656
3 changed files with 17 additions and 7 deletions
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6
include/boost/exception/exception.hpp
View File

@ -75,8 +75,8 @@ boost
void void
release() release()
{ {
if( px_ ) if( px_ && px_->release() )
px_->release(); px_=0;
} }
}; };
} }
@ -150,7 +150,7 @@ boost
virtual shared_ptr<error_info_base> get( type_info_ const & ) const = 0; virtual shared_ptr<error_info_base> get( type_info_ const & ) const = 0;
virtual void set( shared_ptr<error_info_base> const &, type_info_ const & ) = 0; virtual void set( shared_ptr<error_info_base> const &, type_info_ const & ) = 0;
virtual void add_ref() const = 0; virtual void add_ref() const = 0;
virtual void release() const = 0; virtual bool release() const = 0;
virtual refcount_ptr<exception_detail::error_info_container> clone() const = 0; virtual refcount_ptr<exception_detail::error_info_container> clone() const = 0;
protected: protected:

9
include/boost/exception/info.hpp
View File

@ -140,11 +140,16 @@ boost
++count_; ++count_;
} }
void bool
release() const release() const
{ {
if( !--count_ ) if( --count_ )
return false;
else
{
delete this; delete this;
return true;
}
} }
refcount_ptr<error_info_container> refcount_ptr<error_info_container>

9
test/refcount_ptr_test.cpp
View File

@ -28,11 +28,16 @@ test_type
++count_; ++count_;
} }
void bool
release() release()
{ {
if( !--count_ ) if( --count_ )
return false;
else
{
delete this; delete this;
return true;
}
} }
private: private: