#if !defined(_MYLOCK_H_)

#define _MYLOCK_H_ 1

#include <pthread.h>

typedef pthread_mutex_t  mylock_t;
typedef pthread_rwlock_t my_rwlock_t;

typedef struct {
    int             ncap;
    int             head;
    int             len;
    int             isize;
    void*           data;
    pthread_mutex_t mutex;
    pthread_cond_t  condget;
    pthread_cond_t  condput;
} cbuf_t;

extern int  mylock_init(mylock_t*);
extern void mylock_fini(mylock_t*);
extern int  mylock_try(mylock_t*);
extern int  mylock_lock(mylock_t*);
extern int  mylock_unlock(mylock_t*);

extern int  my_rwlock_init(my_rwlock_t*);
extern void my_rwlock_fini(my_rwlock_t*);
extern int  my_rwlock_rlock(my_rwlock_t*);
extern int  my_rwlock_wlock(my_rwlock_t*);
extern int  my_rwlock_unlock(my_rwlock_t*);

extern int  cbuf_init(cbuf_t*, int, int);
extern void cbuf_fini(cbuf_t*);
extern int  cbuf_put(cbuf_t*, void*);
extern int  cbuf_tryput(cbuf_t*, void*);
extern int  cbuf_get(cbuf_t*, void*);
#endif