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/**
* @file intr.h
*
*
* XXX: It is unclear if the type "intr_t" should be defined when
* _POSIX_INTERRUPT_CONTROL is not.
*/
/*
* $Id$
*/
#ifndef __POSIX_INTERRUPTS_h
#define __POSIX_INTERRUPTS_h
#ifdef __cplusplus
extern "C" {
#endif
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#if defined(_POSIX_INTERRUPT_CONTROL)
/*
* 22.2 Concepts, P1003.4b/D8, p. 73
*/
typedef int intr_t;
/*
* 22.3.1 Associate a User-Written ISR with an Interrupt, P1003.4b/D8, p. 74
*/
/*
* Return codes from an interrupt handler
*/
#define INTR_HANDLED_NOTIFY 0 /* ISR handled this interrupt, notify */
/* the thread that registered the */
/* ISR that the interrupt occurred. */
#define INTR_HANDLED_DO_NOT_NOTIFY 1 /* ISR handled this interrupt, but */
/* do NOT perform notification. */
#define INTR_NOT_HANDLED 2 /* ISR did not handle this interrupt, */
/* let the next handler try. */
int intr_capture(
intr_t intr,
int (*intr_handler)( void *area ),
volatile void *area,
size_t areasize
);
int intr_release(
intr_t intr,
int (*intr_handler)( void *area )
);
int intr_lock(
intr_t intr
);
int intr_unlock(
intr_t intr
);
/*
* 22.3.2 Await Interrupt Notification, P1003.4b/D8, p. 76
*/
int intr_timed_wait(
int flags,
const struct timespec *timeout
);
#endif
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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