linux-sgx-trts-modified/psw/ae/common/inc/UnixCommunicationSocket.h

/*
 * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * 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.
 *   * Neither the name of Intel Corporation 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
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#ifndef __AE_UNIX_SOCKET_GATEWAY_H
#define __AE_UNIX_SOCKET_GATEWAY_H

#include <ICommunicationSocket.h>
#include <sys/time.h>

class UnixCommunicationSocket : public ICommunicationSocket{
    public:
        UnixCommunicationSocket(const char* socketbase);
        UnixCommunicationSocket(int socket);

        ~UnixCommunicationSocket();

        virtual bool init();
        virtual ssize_t writeRaw(const char* data, ssize_t length);
        virtual char* readRaw(ssize_t length);

        void disconnect();
        virtual int getSockDescriptor();

        //timeout
        virtual bool setTimeout(uint32_t timeout_milliseconds);
        virtual bool wasTimeoutDetected() { return mWasTimeout; }    
    protected:
        char*   mSocketBase;
        bool    mWasTimeout;

        void MarkStartTime();
        bool CheckForTimeout();

        uint32_t mTimeoutMseconds;
        struct timeval mStartTime;

    private:
        //non-copyable
        UnixCommunicationSocket(const UnixCommunicationSocket&);
        UnixCommunicationSocket& operator=(const UnixCommunicationSocket&);
};

#endif