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FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64
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Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/ichwd/@/amd64/compile/hs32/modules/usr/src/sys/modules/sem/@/dev/xen/console/xencons_ring.h

/*
 * $FreeBSD: release/9.1.0/sys/dev/xen/console/xencons_ring.h 192003 2009-05-11 22:55:49Z kmacy $
 *
 */
#ifndef _XENCONS_RING_H
#define _XENCONS_RING_H

#define CN_LOCK(l)        								\
		do {											\
				if (panicstr == NULL)					\
                        mtx_lock_spin(&(l));			\
		} while (0)
#define CN_UNLOCK(l)        							\
		do {											\
				if (panicstr == NULL)					\
                        mtx_unlock_spin(&(l));			\
		} while (0)

int xencons_ring_init(void);
int xencons_ring_send(const char *data, unsigned len);
void xencons_rx(char *buf, unsigned len);
void xencons_tx(void);


typedef void (xencons_receiver_func)(char *buf, unsigned len);
void xencons_ring_register_receiver(xencons_receiver_func *f);

void xencons_handle_input(void *unused);
int xencons_has_input(void);

#endif /* _XENCONS_RING_H */

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