tbb_exception.h

/*
    Copyright 2005-2010 Intel Corporation.  All Rights Reserved.

    The source code contained or described herein and all documents related
    to the source code ("Material") are owned by Intel Corporation or its
    suppliers or licensors.  Title to the Material remains with Intel
    Corporation or its suppliers and licensors.  The Material is protected
    by worldwide copyright laws and treaty provisions.  No part of the
    Material may be used, copied, reproduced, modified, published, uploaded,
    posted, transmitted, distributed, or disclosed in any way without
    Intel's prior express written permission.

    No license under any patent, copyright, trade secret or other
    intellectual property right is granted to or conferred upon you by
    disclosure or delivery of the Materials, either expressly, by
    implication, inducement, estoppel or otherwise.  Any license under such
    intellectual property rights must be express and approved by Intel in
    writing.
*/

#ifndef __TBB_exception_H
#define __TBB_exception_H

#include "tbb_stddef.h"

#if __TBB_EXCEPTIONS && !defined(__EXCEPTIONS) && !defined(_CPPUNWIND) && !defined(__SUNPRO_CC)
#error The current compilation environment does not support exception handling. Please set __TBB_EXCEPTIONS to 0 in tbb_config.h
#endif

#include <stdexcept>
#if __SUNPRO_CC
#include <string> // required to construct std exception classes
#endif

namespace tbb {

class bad_last_alloc : public std::bad_alloc {
public:
    /*override*/ const char* what() const throw();
    /*override*/ ~bad_last_alloc() throw() {}
};

class improper_lock : public std::exception {
public:
    /*override*/ const char* what() const throw();
};

class missing_wait : public std::exception {
public:
    /*override*/ const char* what() const throw();
};

class invalid_multiple_scheduling : public std::exception {
public:
    /*override*/ const char* what() const throw();
};

namespace internal {
void __TBB_EXPORTED_FUNC throw_bad_last_alloc_exception_v4();

enum exception_id {
    eid_bad_alloc = 1,
    eid_bad_last_alloc,
    eid_nonpositive_step,
    eid_out_of_range,
    eid_segment_range_error,
    eid_index_range_error,
    eid_missing_wait,
    eid_invalid_multiple_scheduling,
    eid_improper_lock,

    eid_max
};


void __TBB_EXPORTED_FUNC throw_exception_v4 ( exception_id );

inline void throw_exception ( exception_id eid ) { throw_exception_v4(eid); }
} // namespace internal

} // namespace tbb

#if __TBB_EXCEPTIONS
#include "tbb_allocator.h"
#include <exception>
#include <typeinfo>
#include <new>

namespace tbb {


class tbb_exception : public std::exception
{
    void* operator new ( size_t );

public:

    virtual tbb_exception* move () throw() = 0;
    

    virtual void destroy () throw() = 0;


    virtual void throw_self () = 0;

    virtual const char* name() const throw() = 0;

    virtual const char* what() const throw() = 0;

    void operator delete ( void* p ) {
        internal::deallocate_via_handler_v3(p);
    }
};


class captured_exception : public tbb_exception
{
public:
    captured_exception ( const captured_exception& src )
        : tbb_exception(src), my_dynamic(false)
    {
        set(src.my_exception_name, src.my_exception_info);
    }

    captured_exception ( const char* name, const char* info )
        : my_dynamic(false)
    {
        set(name, info);
    }

    __TBB_EXPORTED_METHOD ~captured_exception () throw() {
        clear();
    }

    captured_exception& operator= ( const captured_exception& src ) {
        if ( this != &src ) {
            clear();
            set(src.my_exception_name, src.my_exception_info);
        }
        return *this;
    }

    /*override*/ 
    captured_exception* __TBB_EXPORTED_METHOD move () throw();

    /*override*/ 
    void __TBB_EXPORTED_METHOD destroy () throw();

    /*override*/ 
    void throw_self () { throw *this; }

    /*override*/ 
    const char* __TBB_EXPORTED_METHOD name() const throw();

    /*override*/ 
    const char* __TBB_EXPORTED_METHOD what() const throw();

    void __TBB_EXPORTED_METHOD set ( const char* name, const char* info ) throw();
    void __TBB_EXPORTED_METHOD clear () throw();

private:
    captured_exception() {}

    static captured_exception* allocate ( const char* name, const char* info );

    bool my_dynamic;
    const char* my_exception_name;
    const char* my_exception_info;
};


template<typename ExceptionData>
class movable_exception : public tbb_exception
{
    typedef movable_exception<ExceptionData> self_type;

public:
    movable_exception ( const ExceptionData& data ) 
        : my_exception_data(data)
        , my_dynamic(false)
        , my_exception_name(typeid(self_type).name())
    {}

    movable_exception ( const movable_exception& src ) throw () 
        : tbb_exception(src)
        , my_exception_data(src.my_exception_data)
        , my_dynamic(false)
        , my_exception_name(src.my_exception_name)
    {}

    ~movable_exception () throw() {}

    const movable_exception& operator= ( const movable_exception& src ) {
        if ( this != &src ) {
            my_exception_data = src.my_exception_data;
            my_exception_name = src.my_exception_name;
        }
        return *this;
    }

    ExceptionData& data () throw() { return my_exception_data; }

    const ExceptionData& data () const throw() { return my_exception_data; }

    /*override*/ const char* name () const throw() { return my_exception_name; }

    /*override*/ const char* what () const throw() { return "tbb::movable_exception"; }

    /*override*/ 
    movable_exception* move () throw() {
        void* e = internal::allocate_via_handler_v3(sizeof(movable_exception));
        if ( e ) {
            ::new (e) movable_exception(*this);
            ((movable_exception*)e)->my_dynamic = true;
        }
        return (movable_exception*)e;
    }
    /*override*/ 
    void destroy () throw() {
        __TBB_ASSERT ( my_dynamic, "Method destroy can be called only on dynamically allocated movable_exceptions" );
        if ( my_dynamic ) {
            this->~movable_exception();
            internal::deallocate_via_handler_v3(this);
        }
    }
    /*override*/ 
    void throw_self () {
        throw *this;
    }

protected:
    ExceptionData  my_exception_data;

private:
    bool my_dynamic;


    const char* my_exception_name;
};

#if !TBB_USE_CAPTURED_EXCEPTION
namespace internal {


class tbb_exception_ptr {
    std::exception_ptr  my_ptr;

public:
    static tbb_exception_ptr* allocate ();
    static tbb_exception_ptr* allocate ( const tbb_exception& tag );
    static tbb_exception_ptr* allocate ( captured_exception& src );
    

    void destroy () throw();

    void throw_self () { std::rethrow_exception(my_ptr); }

private:
    tbb_exception_ptr ( const std::exception_ptr& src ) : my_ptr(src) {}
    tbb_exception_ptr ( const captured_exception& src ) : my_ptr(std::copy_exception(src)) {}
}; // class tbb::internal::tbb_exception_ptr

} // namespace internal
#endif /* !TBB_USE_CAPTURED_EXCEPTION */

} // namespace tbb

#endif /* __TBB_EXCEPTIONS */

#endif /* __TBB_exception_H */

---

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