errorTransport.h

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//
// Copyright 2016 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
//    names, trademarks, service marks, or product names of the Licensor
//    and its affiliates, except as required to comply with Section 4(c) of
//    the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#ifndef PXR_BASE_TF_ERROR_TRANSPORT_H
#define PXR_BASE_TF_ERROR_TRANSPORT_H


#include "pxr/pxr.h"
#include "pxr/base/tf/diagnosticMgr.h"
#include "pxr/base/arch/hints.h"
#include "pxr/base/tf/api.h"

PXR_NAMESPACE_OPEN_SCOPE

class TfErrorTransport
{
public:
    typedef TfDiagnosticMgr::ErrorList ErrorList;

    TfErrorTransport() {}

    void Post() {
        if (ARCH_UNLIKELY(!IsEmpty()))
            _PostImpl();
    }

    bool IsEmpty() const { return _errorList.empty(); }

    void swap(TfErrorTransport &other) {
        _errorList.swap(other._errorList);
    }

private:
    friend class TfErrorMark;

    TfErrorTransport(ErrorList &src,
                     ErrorList::iterator first,
                     ErrorList::iterator last) {
        _errorList.splice(_errorList.begin(), src, first, last);
    }

    TF_API
    void _PostImpl();
    
    ErrorList _errorList;
};

inline void
swap(TfErrorTransport &l, TfErrorTransport &r)
{
    l.swap(r);
}

PXR_NAMESPACE_CLOSE_SCOPE

#endif // PXR_BASE_TF_ERROR_TRANSPORT_H