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/**
* Copyright (C) ARM Limited 2013. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef BUFFER_H
#define BUFFER_H
#include <stddef.h>
#include <stdint.h>
#include <semaphore.h>
class Sender;
class Buffer {
public:
static const size_t MAXSIZE_PACK32 = 5;
static const size_t MAXSIZE_PACK64 = 10;
Buffer (int32_t core, int32_t buftype, const int size, sem_t *const readerSem);
~Buffer ();
void write (Sender * sender);
int bytesAvailable () const;
void commit (const uint64_t time);
void check (const uint64_t time);
void frame ();
bool eventHeader (uint64_t curr_time);
void event (int32_t key, int32_t value);
void event64 (int64_t key, int64_t value);
void setDone ();
bool isDone () const;
private:
bool commitReady () const;
bool checkSpace (int bytes);
void packInt (int32_t x);
void packInt64 (int64_t x);
const int32_t core;
const int32_t buftype;
const int size;
int readPos;
int writePos;
int commitPos;
bool available;
bool done;
char *const buf;
uint64_t commitTime;
sem_t *const readerSem;
};
#endif // BUFFER_H
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