iostream.h

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/*
BSD 3-Clause License
 
Copyright (c) 2022, Stable Cloud Computing, Inc.
 
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
 
1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
 
2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
 
3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.
 
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 A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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*/
#ifndef _SCC_UTIL_IOSTREAM_H
#define _SCC_UTIL_IOSTREAM_H
 
#include <istream>
#include <string>
#include <memory>
#include <util/iobase.h>
 
namespace scc::util
{
 
class InStream : public std::istream
{
public:
    InStream(Reader&, size_t = 1024);
    InStream(const std::shared_ptr<Reader>&, size_t = 1024);
    InStream() = delete;
    InStream(const InStream&) = delete;
    InStream& operator=(const InStream&) = delete;
    InStream(InStream&&);
    InStream& operator=(InStream&&);
    virtual ~InStream();
 
    void read_reset(const std::shared_ptr<Reader>&);
    std::shared_ptr<Reader> read_shared() const;
 
    virtual size_t recvbuf_size() const;
    virtual void recvbuf_size(size_t);
    virtual std::string recv_fail() const;
 
    void clear(std::ios::iostate = std::ios::goodbit);
};
 
class OutStream : public std::ostream
{
public:
    OutStream(Writer&, size_t = 1024);
    OutStream(const std::shared_ptr<Writer>&, size_t = 1024);
    OutStream() = delete;
    OutStream(const OutStream&) = delete;
    OutStream& operator=(const OutStream&) = delete;
    OutStream(OutStream&&);
    OutStream& operator=(OutStream&&);
    virtual ~OutStream();
 
    void write_reset(const std::shared_ptr<Writer>&);
    std::shared_ptr<Writer> write_shared() const;
 
    size_t sendbuf_size() const;
    void sendbuf_size(size_t);
    virtual std::string send_fail() const;
 
    void clear(std::ios::iostate = std::ios::goodbit);
};
 
class IoStream : public std::iostream
{
public:
    IoStream(Reader&, Writer&, size_t = 1024, size_t = 1024);
    IoStream(const std::shared_ptr<Reader>&, const std::shared_ptr<Writer>&, size_t = 1024, size_t = 1024);
    IoStream() = delete;
    IoStream(const IoStream&) = delete;
    IoStream& operator=(const IoStream&) = delete;
    IoStream(IoStream&&);
    IoStream& operator=(IoStream&&);
    virtual ~IoStream();
 
    void read_reset(const std::shared_ptr<Reader>&);
    void write_reset(const std::shared_ptr<Writer>&);
    std::shared_ptr<Reader> read_shared() const;
    std::shared_ptr<Writer> write_shared() const;
 
    size_t recvbuf_size() const;
    void recvbuf_size(size_t);
    size_t sendbuf_size() const;
    void sendbuf_size(size_t);
    virtual std::string recv_fail() const;
    virtual std::string send_fail() const;
 
    void clear(std::ios::iostate = std::ios::goodbit);
};
 
}
 
#endif