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enable_current_exception.hpp decoupled from atomic_count.hpp

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[SVN r48439]
This commit is contained in:
Emil Dotchevski
2008-08-29 04:56:02 +00:00
parent d7b98ba390
commit 0c9d70964e
5 changed files with 535 additions and 239 deletions
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93
include/boost/exception_ptr.hpp
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@ -8,13 +8,76 @@
#include <boost/exception/enable_current_exception.hpp>
#include <boost/exception/detail/get_boost_exception.hpp>
#include <boost/exception/detail/cloning_base.hpp>
#include <boost/detail/atomic_count.hpp>
#include <stdexcept>
#include <new>
namespace
boost
{
namespace
exception_detail
{
class
counted_clone:
public counted_base
{
public:
counted_clone():
count_(0),
clone_(0)
{
}
void
set( new_clone const & nc )
{
clone_ = nc.c_;
clone_deleter_ = nc.d_;
BOOST_ASSERT(clone_!=0);
BOOST_ASSERT(clone_deleter_!=0);
}
void
rethrow() const
{
BOOST_ASSERT(clone_!=0);
clone_->rethrow();
}
private:
counted_clone( counted_clone const & );
counted_clone & operator=( counted_clone const & );
mutable detail::atomic_count count_;
clone_base const * clone_;
void (*clone_deleter_)(clone_base const *);
~counted_clone() throw()
{
if( clone_ )
clone_deleter_(clone_);
}
void
add_ref() const
{
++count_;
}
void
release() const
{
if( !--count_ )
delete this;
}
};
}
typedef intrusive_ptr<exception_detail::counted_clone const> exception_ptr;
class
unknown_exception:
public exception,
@ -37,8 +100,6 @@ boost
}
};
typedef intrusive_ptr<exception_detail::clone_base const> exception_ptr;
namespace
exception_detail
{
@ -72,17 +133,21 @@ boost
exception_ptr
current_exception_std_exception( T const & e1 )
{
intrusive_ptr<exception_detail::counted_clone> x(new exception_detail::counted_clone);
if( boost::exception const * e2 = get_boost_exception(&e1) )
return exception_ptr(exception_detail::make_clone(current_exception_std_exception_wrapper<T>(e1,*e2)));
x->set(exception_detail::make_clone(current_exception_std_exception_wrapper<T>(e1,*e2)));
else
return exception_ptr(exception_detail::make_clone(current_exception_std_exception_wrapper<T>(e1)));
x->set(exception_detail::make_clone(current_exception_std_exception_wrapper<T>(e1)));
return x;
}
inline
exception_ptr
current_exception_unknown_exception()
{
return exception_ptr(exception_detail::make_clone(unknown_exception()));
intrusive_ptr<exception_detail::counted_clone> x(new exception_detail::counted_clone);
x->set(exception_detail::make_clone(unknown_exception()));
return x;
}
inline
@ -90,7 +155,11 @@ boost
current_exception_unknown_std_exception( std::exception const & e )
{
if( boost::exception const * be = get_boost_exception(&e) )
return exception_ptr(exception_detail::make_clone(unknown_exception(*be)));
{
intrusive_ptr<exception_detail::counted_clone> x(new exception_detail::counted_clone);
x->set(exception_detail::make_clone(unknown_exception(*be)));
return x;
}
else
return current_exception_unknown_exception();
}
@ -99,7 +168,9 @@ boost
exception_ptr
current_exception_unknown_boost_exception( boost::exception const & e )
{
return exception_ptr(exception_detail::make_clone(unknown_exception(e)));
intrusive_ptr<exception_detail::counted_clone> x(new exception_detail::counted_clone);
x->set(exception_detail::make_clone(unknown_exception(e)));
return x;
}
}
@ -114,9 +185,9 @@ boost
catch(
exception_detail::cloning_base & e )
{
exception_detail::clone_base const * c = e.clone();
BOOST_ASSERT(c!=0);
return exception_ptr(c);
intrusive_ptr<exception_detail::counted_clone> x(new exception_detail::counted_clone);
x->set(e.clone());
return x;
}
catch(
std::invalid_argument & e )