assimp/code/Common/FileLogStream.h

/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2024, assimp team

All rights reserved.

Redistribution and use of this software in source and binary forms,
with or without modification, are permitted provided that the
following conditions are met:

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following disclaimer.

* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
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* Neither the name of the assimp team, nor the names of its
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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----------------------------------------------------------------------
*/
/** @file FileLofStream.h
*/
#ifndef ASSIMP_FILELOGSTREAM_H_INC
#define ASSIMP_FILELOGSTREAM_H_INC

#include <assimp/DefaultIOSystem.h>
#include <assimp/IOStream.hpp>
#include <assimp/LogStream.hpp>

namespace Assimp {

// ----------------------------------------------------------------------------------
/** @class  FileLogStream
 *  @brief  Logstream to write into a file.
 */
class FileLogStream : public LogStream {
public:
    FileLogStream(const char *file, IOSystem *io = nullptr);
    ~FileLogStream();
    void write(const char *message);

private:
    IOStream *m_pStream;
};

// ----------------------------------------------------------------------------------
//  Constructor
inline FileLogStream::FileLogStream(const char *file, IOSystem *io) :
        m_pStream(nullptr) {
    if (!file || 0 == *file)
        return;

    // If no IOSystem is specified: take a default one
    if (!io) {
        DefaultIOSystem FileSystem;
        m_pStream = FileSystem.Open(file, "wt");
    } else
        m_pStream = io->Open(file, "wt");
}

// ----------------------------------------------------------------------------------
//  Destructor
inline FileLogStream::~FileLogStream() {
    // The virtual d'tor should destroy the underlying file
    delete m_pStream;
}

// ----------------------------------------------------------------------------------
//  Write method
inline void FileLogStream::write(const char *message) {
    if (m_pStream != nullptr) {
        m_pStream->Write(message, sizeof(char), ::strlen(message));
        m_pStream->Flush();
    }
}

// ----------------------------------------------------------------------------------
} // namespace Assimp

#endif // !! ASSIMP_FILELOGSTREAM_H_INC