#ifndef _BATCH_QUEUE_COMMON_COMM_H_
#define _BATCH_QUEUE_COMMON_COMM_H_ 1

/* Non standard include */
#include <commtech.h>

#ifndef BUF_SIZE
#define BUF_SIZE (32 * CACHE_LINE_SIZE)
#endif

struct channel
{
	void * volatile buf[2 * BUF_SIZE / sizeof(void *)] __attribute__ ((aligned (CACHE_LINE_SIZE)));
	int unused[20] __attribute__ ((aligned (CACHE_LINE_SIZE)));
	volatile int  state __attribute__ ((aligned (CACHE_LINE_SIZE)));
	int  sender_idx __attribute__ ((aligned (CACHE_LINE_SIZE)));
	int receiver_idx __attribute__ ((aligned (CACHE_LINE_SIZE)));
};


__BEGIN_DECLS

static inline void send(struct channel *channel, void **addr)
{
	channel->buf[channel->sender_idx++] = addr;
	channel->sender_idx %= 2 * (BUF_SIZE / sizeof(void *));
	if (!(channel->sender_idx % (BUF_SIZE / sizeof(void *))))
	{
		while (channel->state);
		channel->state = 1;
	}
}

__END_DECLS

#endif