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70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
/* Copyright (C) 2019 MariaDB Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef POSIX_TASK_H_
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#define POSIX_TASK_H_
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#include <vector>
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#include <sys/types.h>
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#include <stdint.h>
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#include <iostream>
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#include "IOCoordinator.h"
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#include "messageFormat.h"
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namespace storagemanager
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{
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class PosixTask
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{
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public:
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PosixTask(int sock, uint length);
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virtual ~PosixTask();
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// this should return false if there was a network error, true otherwise including for other errors
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virtual bool run() = 0;
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void primeBuffer();
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protected:
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int read(uint8_t *buf, uint length);
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bool write(const std::vector<uint8_t> &buf);
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bool write(sm_response &resp, uint payloadLength);
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bool write(const uint8_t *buf, uint length);
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void consumeMsg(); // drains the remaining portion of the message
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uint getLength(); // returns the total length of the msg
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uint getRemainingLength(); // returns the remaining length from the caller's perspective
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void handleError(const char *name, int errCode);
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IOCoordinator *ioc;
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private:
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PosixTask();
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int sock;
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int totalLength;
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uint remainingLengthInStream;
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uint remainingLengthForCaller;
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static const uint bufferSize = 4096;
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uint8_t localBuffer[bufferSize];
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uint bufferPos;
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uint bufferLen;
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};
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}
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#endif
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