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/*
QHYCCD SDK
Copyright (c) 2014 QHYCCD.
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 as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59
Temple Place - Suite 330, Boston, MA 02111-1307, USA.
The full GNU General Public License is included in this distribution in the
file called LICENSE.
*/
#ifndef _UNLOCK_QUEUE_H
#define _UNLOCK_QUEUE_H
class UnlockImageQueue {
public:
UnlockImageQueue();
virtual ~UnlockImageQueue();
bool Initialize(int nSize);
unsigned int Put(const unsigned char *pBuffer, unsigned int nLen);
unsigned int Get(unsigned char *pBuffer, unsigned int nLen);
inline void Clean() {
m_nIn = 0;
m_nOut = 0;
}
inline unsigned int GetDataLen() const {
return m_nIn - m_nOut;
}
private:
inline bool is_power_of_2(unsigned long n) {
return (n != 0 && ((n & (n - 1)) == 0));
};
inline unsigned long roundup_power_of_two(unsigned long val);
private:
unsigned char *m_pBuffer; /* the buffer holding the data */
unsigned int m_nSize; /* the size of the allocated buffer */
unsigned int m_nIn; /* data is added at offset (in % size) */
unsigned int m_nOut; /* data is extracted from offset (out % size) */
};
#endif
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