spinlock.h

Go to the documentation of this file.

 
#ifndef __SPINLOCK_H__
#define __SPINLOCK_H__
 
#include <stdint.h>
 
#include <sys/cdefs.h>
#include <sys/queue.h>
 
#define SPINLOCK_NAMELEN    32
 
#define SPINLOCK_TYPE_NORMAL            1
#define SPINLOCK_TYPE_RECURSIVE         2
 
typedef struct Spinlock
{
    volatile uint64_t       lock;
    uint64_t                cpu;
    uint64_t                count;
    uint64_t                rCount;
    uint64_t                lockTime;
    uint64_t                waitTime;
    uint64_t                lockedTSC;
    uint64_t                type;
    char                    name[SPINLOCK_NAMELEN];
    LIST_ENTRY(Spinlock)    lockList;
    TAILQ_ENTRY(Spinlock)   lockStack;
} __LOCKABLE Spinlock;
 
void Critical_Init();
void Critical_Enter();
void Critical_Exit();
uint32_t Critical_Level();
 
void Spinlock_EarlyInit();
void Spinlock_Init(Spinlock *lock, const char *name, uint64_t type);
void Spinlock_Destroy(Spinlock *lock);
void Spinlock_Lock(Spinlock *lock) __LOCK_EX(*lock);
void Spinlock_Unlock(Spinlock *lock) __UNLOCK_EX(*lock);
bool Spinlock_IsHeld(Spinlock *lock) __LOCK_EX_ASSERT(*lock);
 
#endif /* __SPINLOCK_H__ */