config, detail, filesystem, system, tools, at 41278.

[SVN r41316]

include/boost/detail/atomic_count.hpp

@@ -90,14 +90,30 @@ typedef long atomic_count;
 }
 
 #elif defined(BOOST_AC_USE_PTHREADS)
+
 #  include <boost/detail/atomic_count_pthreads.hpp>
+
+#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
+
+# include <boost/detail/atomic_count_gcc_x86.hpp>
+
 #elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+
 #  include <boost/detail/atomic_count_win32.hpp>
+
+#elif defined( __GNUC__ ) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 )
+
+#  include <boost/detail/atomic_count_sync.hpp>
+
 #elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
+
 #  include <boost/detail/atomic_count_gcc.hpp>
+
 #elif defined(BOOST_HAS_PTHREADS)
+
 #  define BOOST_AC_USE_PTHREADS
 #  include <boost/detail/atomic_count_pthreads.hpp>
+
 #else
 
 // Use #define BOOST_DISABLE_THREADS to avoid the error

include/boost/detail/atomic_count_gcc.hpp

@@ -17,11 +17,7 @@
 //  http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#if (__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 2))
+#include <bits/atomicity.h>
-# include <ext/atomicity.h>
-#else
-# include <bits/atomicity.h>
-#endif
 
 namespace boost
 {

include/boost/detail/atomic_count_gcc_x86.hpp

@@ -0,0 +1,84 @@
+#ifndef BOOST_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
+#define BOOST_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
+
+//
+//  boost/detail/atomic_count_gcc_x86.hpp
+//
+//  atomic_count for g++ on 486+/AMD64
+//
+//  Copyright 2007 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+    explicit atomic_count( long v ) : value_( static_cast< int >( v ) ) {}
+
+    void operator++()
+    {
+        __asm__
+        (
+            "lock\n\t"
+            "incl %0":
+            "+m"( value_ ): // output (%0)
+            : // inputs
+            "cc" // clobbers
+        );
+    }
+
+    long operator--()
+    {
+        return atomic_exchange_and_add( &value_, -1 ) - 1;
+    }
+
+    operator long() const
+    {
+        return atomic_exchange_and_add( &value_, 0 );
+    }
+
+private:
+
+    atomic_count(atomic_count const &);
+    atomic_count & operator=(atomic_count const &);
+
+    mutable int value_;
+
+private:
+
+    static int atomic_exchange_and_add( int * pw, int dv )
+    {
+        // int r = *pw;
+        // *pw += dv;
+        // return r;
+
+        int r;
+
+        __asm__ __volatile__
+        (
+            "lock\n\t"
+            "xadd %1, %0":
+            "+m"( *pw ), "=r"( r ): // outputs (%0, %1)
+            "1"( dv ): // inputs (%2 == %1)
+            "memory", "cc" // clobbers
+        );
+
+        return r;
+    }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED

include/boost/detail/atomic_count_solaris.hpp

@@ -0,0 +1,59 @@
+#ifndef BOOST_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
+#define BOOST_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
+
+//
+//  boost/detail/atomic_count_solaris.hpp
+//   based on: boost/detail/atomic_count_win32.hpp
+//
+//  Copyright (c) 2001-2005 Peter Dimov
+//  Copyright (c) 2006 Michael van der Westhuizen
+//
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#include <atomic.h>
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+    explicit atomic_count( uint32_t v ): value_( v )
+    {
+    }
+
+    long operator++()
+    {
+        return atomic_inc_32_nv( &value_ );
+    }
+
+    long operator--()
+    {
+        return atomic_dec_32_nv( &value_ );
+    }
+
+    operator uint32_t() const
+    {
+        return static_cast<uint32_t const volatile &>( value_ );
+    }
+
+private:
+
+    atomic_count( atomic_count const & );
+    atomic_count & operator=( atomic_count const & );
+
+    uint32_t value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED

include/boost/detail/atomic_count_sync.hpp

@@ -0,0 +1,57 @@
+#ifndef BOOST_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
+#define BOOST_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
+
+//
+//  boost/detail/atomic_count_sync.hpp
+//
+//  atomic_count for g++ 4.1+
+//
+//  http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Atomic-Builtins.html
+//
+//  Copyright 2007 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+
+namespace boost
+{
+
+namespace detail
+{
+
+class atomic_count
+{
+public:
+
+    explicit atomic_count( long v ) : value_( v ) {}
+
+    void operator++()
+    {
+        __sync_add_and_fetch( &value_, 1 );
+    }
+
+    long operator--()
+    {
+        return __sync_add_and_fetch( &value_, -1 );
+    }
+
+    operator long() const
+    {
+        return __sync_fetch_and_add( &value_, 0 );
+    }
+
+private:
+
+    atomic_count(atomic_count const &);
+    atomic_count & operator=(atomic_count const &);
+
+    mutable long value_;
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED

include/boost/detail/lightweight_mutex.hpp

@@ -30,10 +30,10 @@
 
 #if !defined(BOOST_HAS_THREADS)
 # include <boost/detail/lwm_nop.hpp>
-#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
-#  include <boost/detail/lwm_win32_cs.hpp>
 #elif defined(BOOST_HAS_PTHREADS)
 #  include <boost/detail/lwm_pthreads.hpp>
+#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+#  include <boost/detail/lwm_win32_cs.hpp>
 #else
 // Use #define BOOST_DISABLE_THREADS to avoid the error
 #  error Unrecognized threading platform

include/boost/detail/shared_count.hpp

@@ -32,7 +32,6 @@
 #include <memory>           // std::auto_ptr
 #include <functional>       // std::less
 #include <new>              // std::bad_alloc
-#include <typeinfo>         // std::type_info in get_deleter
 
 namespace boost
 {
@@ -259,7 +258,7 @@ public:
         return std::less<sp_counted_base *>()( a.pi_, b.pi_ );
     }
 
-    void * get_deleter(std::type_info const & ti) const
+    void * get_deleter( sp_typeinfo const & ti ) const
     {
         return pi_? pi_->get_deleter( ti ): 0;
     }

include/boost/detail/sp_counted_base.hpp

@@ -10,7 +10,7 @@
 //
 //  detail/sp_counted_base.hpp
 //
-//  Copyright 2005 Peter Dimov
+//  Copyright 2005, 2006 Peter Dimov
 //
 // Distributed under the Boost Software License, Version 1.0. (See
 // accompanying file LICENSE_1_0.txt or copy at
@@ -39,14 +39,26 @@
 
 # include <boost/detail/sp_counted_base_gcc_ia64.hpp>
 
+#elif defined(__HP_aCC) && defined(__ia64)
+
+# include <boost/detail/sp_counted_base_acc_ia64.hpp>
+
 #elif defined( __MWERKS__ ) && defined( __POWERPC__ )
 
 # include <boost/detail/sp_counted_base_cw_ppc.hpp>
 
-#elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) )
+#elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) || defined( __ppc ) )
 
 # include <boost/detail/sp_counted_base_gcc_ppc.hpp>
 
+#elif defined(__GNUC__) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 )
+
+# include <boost/detail/sp_counted_base_sync.hpp>
+
+#elif defined(__GNUC__) && ( defined( __sparcv8 ) || defined( __sparcv9 ) )
+
+# include <boost/detail/sp_counted_base_gcc_sparc.hpp>
+
 #elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )
 
 # include <boost/detail/sp_counted_base_w32.hpp>

include/boost/detail/sp_counted_base_acc_ia64.hpp

@@ -0,0 +1,150 @@
+#ifndef BOOST_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
+#define BOOST_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
+
+//
+//  detail/sp_counted_base_acc_ia64.hpp - aC++ on HP-UX IA64
+//
+//  Copyright 2007 Baruch Zilber
+//  Copyright 2007 Boris Gubenko
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+//  Lock-free algorithm by Alexander Terekhov
+//
+
+#include "sp_typeinfo.hpp"
+#include <machine/sys/inline.h>
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline void atomic_increment( int * pw )
+{
+    // ++*pw;
+
+    _Asm_fetchadd(_FASZ_W, _SEM_REL, pw, +1, _LDHINT_NONE);
+} 
+
+inline int atomic_decrement( int * pw )
+{
+    // return --*pw;
+
+    int r = static_cast<int>(_Asm_fetchadd(_FASZ_W, _SEM_REL, pw, -1, _LDHINT_NONE));
+    if (1 == r)
+    {
+        _Asm_mf();
+    }
+    
+    return r - 1;
+}
+
+inline int atomic_conditional_increment( int * pw )
+{
+    // if( *pw != 0 ) ++*pw;
+    // return *pw;
+
+    int v = *pw;
+    
+    for (;;)
+    {
+        if (0 == v)
+        {
+            return 0;
+        }
+        
+        _Asm_mov_to_ar(_AREG_CCV,
+                       v,
+                       (_UP_CALL_FENCE | _UP_SYS_FENCE | _DOWN_CALL_FENCE | _DOWN_SYS_FENCE));
+        int r = static_cast<int>(_Asm_cmpxchg(_SZ_W, _SEM_ACQ, pw, v + 1, _LDHINT_NONE));
+        if (r == v)
+        {
+            return r + 1;
+        }
+        
+        v = r;
+    }
+}
+
+class sp_counted_base
+{
+private:
+
+    sp_counted_base( sp_counted_base const & );
+    sp_counted_base & operator= ( sp_counted_base const & );
+
+    int use_count_;        // #shared
+    int weak_count_;       // #weak + (#shared != 0)
+
+public:
+
+    sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+    {
+    }
+
+    virtual ~sp_counted_base() // nothrow
+    {
+    }
+
+    // dispose() is called when use_count_ drops to zero, to release
+    // the resources managed by *this.
+
+    virtual void dispose() = 0; // nothrow
+
+    // destroy() is called when weak_count_ drops to zero.
+
+    virtual void destroy() // nothrow
+    {
+        delete this;
+    }
+
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+    void add_ref_copy()
+    {
+        atomic_increment( &use_count_ );
+    }
+
+    bool add_ref_lock() // true on success
+    {
+        return atomic_conditional_increment( &use_count_ ) != 0;
+    }
+
+    void release() // nothrow
+    {
+        if( atomic_decrement( &use_count_ ) == 0 )
+        {
+            dispose();
+            weak_release();
+        }
+    }
+
+    void weak_add_ref() // nothrow
+    {
+        atomic_increment( &weak_count_ );
+    }
+
+    void weak_release() // nothrow
+    {
+        if( atomic_decrement( &weak_count_ ) == 0 )
+        {
+            destroy();
+        }
+    }
+
+    long use_count() const // nothrow
+    {
+        return static_cast<int const volatile &>( use_count_ ); // TODO use ld.acq here
+    }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED

include/boost/detail/sp_counted_base_cw_ppc.hpp

@@ -24,7 +24,7 @@
 //  formulation
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -123,7 +123,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_cw_x86.hpp

@@ -25,7 +25,7 @@
 //  formulation
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -111,7 +111,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_gcc_ia64.hpp

@@ -16,7 +16,7 @@
 //  Lock-free algorithm by Alexander Terekhov
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -110,7 +110,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_gcc_ppc.hpp

@@ -24,7 +24,7 @@
 //  formulation
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -134,7 +134,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_gcc_sparc.hpp

@@ -0,0 +1,166 @@
+#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
+#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//  detail/sp_counted_base_gcc_sparc.hpp - g++ on Sparc V8+
+//
+//  Copyright (c) 2006 Piotr Wyderski
+//  Copyright (c) 2006 Tomas Puverle
+//  Copyright (c) 2006 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+//
+//  Thanks to Michael van der Westhuizen
+
+#include "sp_typeinfo.hpp"
+#include <inttypes.h> // int32_t
+
+namespace boost
+{
+
+namespace detail
+{
+
+inline int32_t compare_and_swap( int32_t * dest_, int32_t compare_, int32_t swap_ )
+{
+    __asm__ __volatile__( "cas %0, %2, %1"
+                        : "+m" (*dest_), "+r" (swap_)
+                        : "r" (compare_)
+                        : "memory" );
+
+    return swap_;
+}
+
+inline int32_t atomic_fetch_and_add( int32_t * pw, int32_t dv )
+{
+    // long r = *pw;
+    // *pw += dv;
+    // return r;
+
+    for( ;; )
+    {
+        int32_t r = *pw;
+
+        if( __builtin_expect((compare_and_swap(pw, r, r + dv) == r), 1) )
+        {
+            return r;
+        }
+    }
+}
+
+inline void atomic_increment( int32_t * pw )
+{
+    atomic_fetch_and_add( pw, 1 );
+}
+
+inline int32_t atomic_decrement( int32_t * pw )
+{
+    return atomic_fetch_and_add( pw, -1 );
+}
+
+inline int32_t atomic_conditional_increment( int32_t * pw )
+{
+    // long r = *pw;
+    // if( r != 0 ) ++*pw;
+    // return r;
+
+    for( ;; )
+    {
+        int32_t r = *pw;
+
+        if( r == 0 )
+        {
+            return r;
+        }
+
+        if( __builtin_expect( ( compare_and_swap( pw, r, r + 1 ) == r ), 1 ) )
+        {
+            return r;
+        }
+    }    
+}
+
+class sp_counted_base
+{
+private:
+
+    sp_counted_base( sp_counted_base const & );
+    sp_counted_base & operator= ( sp_counted_base const & );
+
+    int32_t use_count_;        // #shared
+    int32_t weak_count_;       // #weak + (#shared != 0)
+
+public:
+
+    sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+    {
+    }
+
+    virtual ~sp_counted_base() // nothrow
+    {
+    }
+
+    // dispose() is called when use_count_ drops to zero, to release
+    // the resources managed by *this.
+
+    virtual void dispose() = 0; // nothrow
+
+    // destroy() is called when weak_count_ drops to zero.
+
+    virtual void destroy() // nothrow
+    {
+        delete this;
+    }
+
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+    void add_ref_copy()
+    {
+        atomic_increment( &use_count_ );
+    }
+
+    bool add_ref_lock() // true on success
+    {
+        return atomic_conditional_increment( &use_count_ ) != 0;
+    }
+
+    void release() // nothrow
+    {
+        if( atomic_decrement( &use_count_ ) == 1 )
+        {
+            dispose();
+            weak_release();
+        }
+    }
+
+    void weak_add_ref() // nothrow
+    {
+        atomic_increment( &weak_count_ );
+    }
+
+    void weak_release() // nothrow
+    {
+        if( atomic_decrement( &weak_count_ ) == 1 )
+        {
+            destroy();
+        }
+    }
+
+    long use_count() const // nothrow
+    {
+        return const_cast< int32_t const volatile & >( use_count_ );
+    }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED

include/boost/detail/sp_counted_base_gcc_x86.hpp

@@ -24,7 +24,7 @@
 //  formulation
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -126,7 +126,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_nt.hpp

@@ -18,7 +18,7 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -58,7 +58,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_pt.hpp

@@ -18,7 +18,7 @@
 // http://www.boost.org/LICENSE_1_0.txt)
 //
 
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 #include <pthread.h>
 
 namespace boost
@@ -69,7 +69,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_base_solaris.hpp

@@ -0,0 +1,113 @@
+#ifndef BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
+#define BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
+
+//
+//  detail/sp_counted_base_solaris.hpp
+//   based on: detail/sp_counted_base_w32.hpp
+//
+//  Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
+//  Copyright 2004-2005 Peter Dimov
+//  Copyright 2006 Michael van der Westhuizen
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//
+//  Lock-free algorithm by Alexander Terekhov
+//
+//  Thanks to Ben Hitchings for the #weak + (#shared != 0)
+//  formulation
+//
+
+#include "sp_typeinfo.hpp"
+#include <atomic.h>
+
+namespace boost
+{
+
+namespace detail
+{
+
+class sp_counted_base
+{
+private:
+
+    sp_counted_base( sp_counted_base const & );
+    sp_counted_base & operator= ( sp_counted_base const & );
+
+    uint32_t use_count_;        // #shared
+    uint32_t weak_count_;       // #weak + (#shared != 0)
+
+public:
+
+    sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+    {
+    }
+
+    virtual ~sp_counted_base() // nothrow
+    {
+    }
+
+    // dispose() is called when use_count_ drops to zero, to release
+    // the resources managed by *this.
+
+    virtual void dispose() = 0; // nothrow
+
+    // destroy() is called when weak_count_ drops to zero.
+
+    virtual void destroy() // nothrow
+    {
+        delete this;
+    }
+
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+    void add_ref_copy()
+    {
+        atomic_inc_32( &use_count_ );
+    }
+
+    bool add_ref_lock() // true on success
+    {
+        for( ;; )
+        {
+            uint32_t tmp = static_cast< uint32_t const volatile& >( use_count_ );
+            if( tmp == 0 ) return false;
+            if( atomic_cas_32( &use_count_, tmp, tmp + 1 ) == tmp ) return true;
+        }
+    }
+
+    void release() // nothrow
+    {
+        if( atomic_dec_32_nv( &use_count_ ) == 0 )
+        {
+            dispose();
+            weak_release();
+        }
+    }
+
+    void weak_add_ref() // nothrow
+    {
+        atomic_inc_32( &weak_count_ );
+    }
+
+    void weak_release() // nothrow
+    {
+        if( atomic_dec_32_nv( &weak_count_ ) == 0 )
+        {
+            destroy();
+        }
+    }
+
+    long use_count() const // nothrow
+    {
+        return static_cast<long const volatile &>( use_count_ );
+    }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED

include/boost/detail/sp_counted_base_sync.hpp

@@ -0,0 +1,151 @@
+#ifndef BOOST_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
+#define BOOST_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//  detail/sp_counted_base_sync.hpp - g++ 4.1+ __sync intrinsics
+//
+//  Copyright (c) 2007 Peter Dimov
+//
+//  Distributed under the Boost Software License, Version 1.0.
+//  See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt
+
+#include "sp_typeinfo.hpp"
+#include <limits.h>
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if INT_MAX >= 2147483647
+
+typedef int sp_int32_t;
+
+#else
+
+typedef long sp_int32_t;
+
+#endif
+
+inline void atomic_increment( sp_int32_t * pw )
+{
+    __sync_fetch_and_add( pw, 1 );
+}
+
+inline sp_int32_t atomic_decrement( sp_int32_t * pw )
+{
+    return __sync_fetch_and_add( pw, -1 );
+}
+
+inline sp_int32_t atomic_conditional_increment( sp_int32_t * pw )
+{
+    // long r = *pw;
+    // if( r != 0 ) ++*pw;
+    // return r;
+
+    sp_int32_t r = *pw;
+
+    for( ;; )
+    {
+        if( r == 0 )
+        {
+            return r;
+        }
+
+        sp_int32_t r2 = __sync_val_compare_and_swap( pw, r, r + 1 );
+
+        if( r2 == r )
+        {
+            return r;
+        }
+        else
+        {
+            r = r2;
+        }
+    }    
+}
+
+class sp_counted_base
+{
+private:
+
+    sp_counted_base( sp_counted_base const & );
+    sp_counted_base & operator= ( sp_counted_base const & );
+
+    sp_int32_t use_count_;        // #shared
+    sp_int32_t weak_count_;       // #weak + (#shared != 0)
+
+public:
+
+    sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
+    {
+    }
+
+    virtual ~sp_counted_base() // nothrow
+    {
+    }
+
+    // dispose() is called when use_count_ drops to zero, to release
+    // the resources managed by *this.
+
+    virtual void dispose() = 0; // nothrow
+
+    // destroy() is called when weak_count_ drops to zero.
+
+    virtual void destroy() // nothrow
+    {
+        delete this;
+    }
+
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
+
+    void add_ref_copy()
+    {
+        atomic_increment( &use_count_ );
+    }
+
+    bool add_ref_lock() // true on success
+    {
+        return atomic_conditional_increment( &use_count_ ) != 0;
+    }
+
+    void release() // nothrow
+    {
+        if( atomic_decrement( &use_count_ ) == 1 )
+        {
+            dispose();
+            weak_release();
+        }
+    }
+
+    void weak_add_ref() // nothrow
+    {
+        atomic_increment( &weak_count_ );
+    }
+
+    void weak_release() // nothrow
+    {
+        if( atomic_decrement( &weak_count_ ) == 1 )
+        {
+            destroy();
+        }
+    }
+
+    long use_count() const // nothrow
+    {
+        return const_cast< sp_int32_t const volatile & >( use_count_ );
+    }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif  // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED

include/boost/detail/sp_counted_base_w32.hpp

@@ -26,7 +26,7 @@
 
 #include <boost/detail/interlocked.hpp>
 #include <boost/detail/workaround.hpp>
-#include <typeinfo>
+#include "sp_typeinfo.hpp"
 
 namespace boost
 {
@@ -66,7 +66,7 @@ public:
         delete this;
     }
 
-    virtual void * get_deleter( std::type_info const & ti ) = 0;
+    virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
 
     void add_ref_copy()
     {

include/boost/detail/sp_counted_impl.hpp

@@ -35,7 +35,6 @@
 #include <memory>           // std::allocator
 #endif
 
-#include <typeinfo>         // std::type_info in get_deleter
 #include <cstddef>          // std::size_t
 
 namespace boost
@@ -79,7 +78,7 @@ public:
         boost::checked_delete( px_ );
     }
 
-    virtual void * get_deleter( std::type_info const & )
+    virtual void * get_deleter( detail::sp_typeinfo const & )
     {
         return 0;
     }
@@ -145,9 +144,9 @@ public:
         del( ptr );
     }
 
-    virtual void * get_deleter( std::type_info const & ti )
+    virtual void * get_deleter( detail::sp_typeinfo const & ti )
     {
-        return ti == typeid(D)? &del: 0;
+        return ti == BOOST_SP_TYPEID(D)? &reinterpret_cast<char&>( del ): 0;
     }
 
 #if defined(BOOST_SP_USE_STD_ALLOCATOR)
@@ -215,9 +214,9 @@ public:
         a2.deallocate( this, 1 );
     }
 
-    virtual void * get_deleter( std::type_info const & ti )
+    virtual void * get_deleter( detail::sp_typeinfo const & ti )
     {
-        return ti == typeid( D )? &d_: 0;
+        return ti == BOOST_SP_TYPEID( D )? &reinterpret_cast<char&>( d_ ): 0;
     }
 };
 

include/boost/detail/sp_typeinfo.hpp

@@ -0,0 +1,83 @@
+#ifndef BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
+#define BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//  detail/sp_typeinfo.hpp
+//
+//  Copyright 2007 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/config.hpp>
+
+#if defined( BOOST_NO_TYPEID )
+
+namespace boost
+{
+
+namespace detail
+{
+
+typedef void* sp_typeinfo;
+
+template<class T> struct sp_typeid_
+{
+    static char v_;
+};
+
+template<class T> char sp_typeid_< T >::v_;
+
+template<class T> struct sp_typeid_< T const >: sp_typeid_< T >
+{
+};
+
+template<class T> struct sp_typeid_< T volatile >: sp_typeid_< T >
+{
+};
+
+template<class T> struct sp_typeid_< T const volatile >: sp_typeid_< T >
+{
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_SP_TYPEID(T) (&boost::detail::sp_typeid_<T>::v_)
+
+#else
+
+#include <typeinfo>
+
+namespace boost
+{
+
+namespace detail
+{
+
+#if defined( BOOST_NO_STD_TYPEINFO )
+
+typedef ::type_info sp_typeinfo;
+
+#else
+
+typedef std::type_info sp_typeinfo;
+
+#endif
+
+} // namespace detail
+
+} // namespace boost
+
+#define BOOST_SP_TYPEID(T) typeid(T)
+
+#endif
+
+#endif  // #ifndef BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED