Subversion Repositories planix.SVN

#ifndef _PLAN9_SOURCE
  This header file is an extension to ANSI/POSIX
#endif

#ifndef __QLOCK_H_
#define __QLOCK_H_
#pragma lib "/$M/lib/ape/lib9.a"

#include <u.h>
#include <lock.h>

typedef struct QLp QLp;
struct QLp
{
        int     inuse;
        QLp     *next;
        char    state;
};

typedef
struct QLock
{
        Lock    lock;
        int     locked;
        QLp     *head;
        QLp     *tail;
} QLock;

#ifdef __cplusplus
extern "C" {
#endif

extern  void    qlock(QLock*);
extern  void    qunlock(QLock*);
extern  int     canqlock(QLock*);

#ifdef __cplusplus
}
#endif

#endif