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/*
* myth_sleep_queue.h
*/
#pragma once
#ifndef MYTH_SLEEP_QUEUE_H_
#define MYTH_SLEEP_QUEUE_H_
#include "myth_spinlock.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef MYTH_SLEEP_QUEUE_DBG
#define MYTH_SLEEP_QUEUE_DBG 0
#endif
/* myth_sleep_queue_item_t represents a pointer
to any data structure that has "next" field
in its head */
typedef struct myth_sleep_queue_item {
struct myth_sleep_queue_item * next;
} myth_sleep_queue_item, * myth_sleep_queue_item_t;
typedef struct {
myth_spinlock_t ilock[1];
volatile myth_sleep_queue_item_t head;
volatile myth_sleep_queue_item_t tail;
} myth_sleep_queue_t;
#define MYTH_SLEEP_QUEUE_INITIALIZER { { MYTH_SPINLOCK_INITIALIZER }, 0, 0 }
typedef struct {
volatile myth_sleep_queue_item_t top;
} myth_sleep_stack_t;
#ifdef __cplusplus
} // extern "C"
#endif
#endif /* MYTH_SLEEP_QUEUE_H_ */
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