// Copyright (c) 2014 Sandstorm Development Group, Inc. and contributors
|
// Licensed under the MIT License:
|
//
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
// of this software and associated documentation files (the "Software"), to deal
|
// in the Software without restriction, including without limitation the rights
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
// copies of the Software, and to permit persons to whom the Software is
|
// furnished to do so, subject to the following conditions:
|
//
|
// The above copyright notice and this permission notice shall be included in
|
// all copies or substantial portions of the Software.
|
//
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
// THE SOFTWARE.
|
|
/*
|
* Compatibility layer for stdlib iostream
|
*/
|
|
#ifndef KJ_STD_IOSTREAM_H_
|
#define KJ_STD_IOSTREAM_H_
|
|
#if defined(__GNUC__) && !KJ_HEADER_WARNINGS
|
#pragma GCC system_header
|
#endif
|
|
#include "../io.h"
|
#include <iostream>
|
|
namespace kj {
|
namespace std {
|
|
class StdOutputStream: public kj::OutputStream {
|
|
public:
|
explicit StdOutputStream(::std::ostream& stream) : stream_(stream) {}
|
~StdOutputStream() noexcept(false) {}
|
|
virtual void write(const void* src, size_t size) override {
|
// Always writes the full size.
|
|
stream_.write((char*)src, size);
|
}
|
|
virtual void write(ArrayPtr<const ArrayPtr<const byte>> pieces) override {
|
// Equivalent to write()ing each byte array in sequence, which is what the
|
// default implementation does. Override if you can do something better,
|
// e.g. use writev() to do the write in a single syscall.
|
|
for (auto piece : pieces) {
|
write(piece.begin(), piece.size());
|
}
|
}
|
|
private:
|
::std::ostream& stream_;
|
|
};
|
|
class StdInputStream: public kj::InputStream {
|
|
public:
|
explicit StdInputStream(::std::istream& stream) : stream_(stream) {}
|
~StdInputStream() noexcept(false) {}
|
|
virtual size_t tryRead(
|
void* buffer, size_t minBytes, size_t maxBytes) override {
|
// Like read(), but may return fewer than minBytes on EOF.
|
|
stream_.read((char*)buffer, maxBytes);
|
return stream_.gcount();
|
}
|
|
private:
|
::std::istream& stream_;
|
|
};
|
|
} // namespace std
|
} // namespace kj
|
|
#endif // KJ_STD_IOSTREAM_H_
|
