i_io_manager.h

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#pragma once
 
#include <cstddef>
#include <functional>
#include <string>
 
#include "contur/core/error.h"
#include "contur/core/types.h"
 
#include "contur/fs/file_descriptor.h"
#include "contur/io/io_types.h"
 
namespace contur {

    using IoWakeCallback = std::function<void(ProcessId)>;

    class IIoManager
    {
        public:
        virtual ~IIoManager() = default;

        [[nodiscard]] virtual Result<void>
        registerFile(RegisterValue resourceId, std::string path, IoResourceKind kind) = 0;

        [[nodiscard]] virtual Result<void>
        registerSocket(RegisterValue resourceId, std::size_t capacity, IoResourceKind kind) = 0;

        [[nodiscard]] virtual Result<IoDescriptor>
        open(RegisterValue resourceId, IoResourceKind kind, OpenMode mode) = 0;

        [[nodiscard]] virtual Result<void> close(IoDescriptor fd) = 0;

        [[nodiscard]] virtual Result<RegisterValue> read(IoDescriptor fd, ProcessId pid) = 0;

        [[nodiscard]] virtual Result<void> write(IoDescriptor fd, RegisterValue value) = 0;

        virtual void setWakeCallback(IoWakeCallback callback) = 0;
    };
 
} // namespace contur