#ifndef WAITGROUP_H_QWERTY
#define WAITGROUP_H_QWERTY

#include <semaphore.h>
#include <pthread.h>
#include <stdatomic.h>
#include <stdio.h>

typedef struct {
    sem_t       sem;
    atomic_int  num;
} wg_t;

wg_t* new_gw(void);
void wg_init(wg_t* wg);
void wg_add(wg_t* wg);
void wg_done(wg_t* wg);
void wg_wait(wg_t* wg);
void wg_destroy(wg_t* wg);
void wg_free(wg_t* wg);

#endif