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/* wg.h - Thread management tools modeled on
* https://golang.org/pkg/sync/#WaitGroup
*
* Copyright (C) 2016 Luke Shumaker
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <pthread.h>
/* When you call wg_wait, the waitgroup is destroyed. You must
* re-wg_init it if you want to reuse it. */
struct wg {
int count;
pthread_mutex_t lock;
int fd_threads[2];
pthread_t gc;
};
void wg_init(struct wg *);
void wg_add(struct wg *);
void wg_sub(struct wg *);
void wg_wait(struct wg*);
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