mirror of
https://github.com/kidfromjupiter/nearby.git
synced 2026-09-15 07:06:11 -04:00
Alexey Polyudov
204f76077d
Signed-off-by: Alexey Polyudov <apolyudov@google.com> Change-Id: I2cf5bf225b76f4c1541954651f3a7544a14e0cec
76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
#ifndef PLATFORM_PIPE_H_
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#define PLATFORM_PIPE_H_
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#include <cstdint>
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#include <deque>
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#include "platform/api/condition_variable.h"
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#include "platform/api/input_stream.h"
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#include "platform/api/lock.h"
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#include "platform/api/output_stream.h"
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#include "platform/byte_array.h"
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#include "platform/exception.h"
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#include "platform/ptr.h"
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namespace location {
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namespace nearby {
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namespace pipe {
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template <typename>
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class PipeInputStream;
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template <typename>
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class PipeOutputStream;
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} // namespace pipe
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template <typename Platform>
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class Pipe {
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public:
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Pipe();
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~Pipe();
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// The returned InputStream is auto-destroyed when no longer referenced.
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static Ptr<InputStream> createInputStream(Ptr<Pipe>);
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// The returned OutputStream is auto-destroyed when no longer referenced.
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static Ptr<OutputStream> createOutputStream(Ptr<Pipe>);
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private:
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//////////////////////////////////////////////////////////////////////////////
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// Everything in this first private: section is only used by PipeInputStream
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// and PipeOutputStream, thus forming the interface presented to those 2
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// classes.
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//////////////////////////////////////////////////////////////////////////////
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template <typename>
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friend class pipe::PipeInputStream;
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template <typename>
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friend class pipe::PipeOutputStream;
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ExceptionOr<ConstPtr<ByteArray> > read(std::int64_t size);
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Exception::Value write(ConstPtr<ByteArray> data);
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void markInputStreamClosed();
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void markOutputStreamClosed();
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private:
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Exception::Value writeLocked(ConstPtr<ByteArray> data);
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bool eitherStreamClosed() const;
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ScopedPtr<Ptr<Lock> > lock_;
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ScopedPtr<Ptr<ConditionVariable> > cond_;
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typedef std::deque<ConstPtr<ByteArray> > BufferType;
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BufferType buffer_;
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bool input_stream_closed_;
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bool output_stream_closed_;
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bool read_all_chunks_;
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};
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} // namespace nearby
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} // namespace location
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#include "platform/pipe.cc"
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#endif // PLATFORM_PIPE_H_
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