threadsalive.h

/*
 * 
 */

#ifndef __THREADSALIVE_H__
#define __THREADSALIVE_H__

/* ***************************
        type definitions
   *************************** */


typedef struct {
    int value;
    struct node *waiting_q;
    int guard;
    int max;
    int semid;
    int isLive;
} tasem_t;

typedef struct {
    int flag;
    tasem_t sem;
    struct node *waiting_q;
    int lockid;
    int isLive;
} talock_t;

typedef struct {
    tasem_t sem;
} tacond_t;


/* ***************************
       stage 1 functions
   *************************** */

void ta_libinit(void);
void ta_create(void (*)(void *), void *);
void ta_yield(void);
int ta_waitall(void);

/* ***************************
       stage 2 functions
   *************************** */

void ta_sem_init(tasem_t *, int);
void ta_sem_destroy(tasem_t *);
void ta_sem_post(tasem_t *);
void ta_sem_wait(tasem_t *);
void ta_lock_init(talock_t *);
void ta_lock_destroy(talock_t *);
void ta_lock(talock_t *);
void ta_unlock(talock_t *);

/* ***************************
       stage 3 functions
   *************************** */

void ta_cond_init(tacond_t *);
void ta_cond_destroy(tacond_t *);
void ta_wait(talock_t *, tacond_t *);
void ta_signal(tacond_t *);

#endif /* __THREADSALIVE_H__ */