/usr/include/kj/std/iostream.h is in libcapnp-dev 0.6.1-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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// 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_
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