#ifndef _SPECIFIC_COMM_H_
#define _SPECIFIC_COMM_H_ 1

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

/* This is not an error, we need this two-macro system */
#define toString(x) doStringification(x)
#define doStringification(x) #x

__BEGIN_DECLS

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

struct cons
{
	struct channel *channel;
	int receiver_idx;
};

union comm
{
	struct channel *channel;
	struct cons *cons;
};

extern __thread union comm comm;

extern int swap_buffer;

static inline void send(void **addr)
{
 	asm volatile("mov    %%gs:channel@NTPOFF + 2 *" toString(BUF_SIZE) " + " toString(CACHE_LINE_SIZE) ", %%eax\n\t"
							 "mov    %0, %%gs:cons.channel@NTPOFF(%%eax)\n\t"
							 "addl   $4, %%eax\n\t"
							 "andl   $(2*" toString(BUF_SIZE) "-1),      %%eax\n\t"
							 "mov    %%eax, %%gs:cons.channel@NTPOFF + 2 * " toString(BUF_SIZE)" + " toString(CACHE_LINE_SIZE) "\n\t"
							 "test   $(" toString(BUF_SIZE) " - 1), %%eax\n\t"
							 "mov    $2f, %%eax\n\t"
							 "jz     swap_buffer\n\t"
							 "2:"
							 :
							 : "r"(addr)
							 : "%eax");
}

__END_DECLS

#endif