Files
ustreamer/src/libs/queue.h
2024-03-22 15:57:16 +02:00

65 lines
2.4 KiB
C

/*****************************************************************************
# #
# uStreamer - Lightweight and fast MJPEG-HTTP streamer. #
# #
# Copyright (C) 2018-2024 Maxim Devaev <mdevaev@gmail.com> #
# #
# 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 <https://www.gnu.org/licenses/>. #
# #
*****************************************************************************/
#pragma once
#include <pthread.h>
#include "types.h"
#include "tools.h"
// Based on https://github.com/seifzadeh/c-pthread-queue/blob/master/queue.h
typedef struct {
void **items;
uint size;
uint capacity;
uint in;
uint out;
pthread_mutex_t mutex;
pthread_cond_t full_cond;
pthread_cond_t empty_cond;
} us_queue_s;
#define US_QUEUE_DELETE_WITH_ITEMS(x_queue, x_free_item) { \
if (x_queue) { \
while (!us_queue_is_empty(x_queue)) { \
void *m_ptr; \
if (!us_queue_get(x_queue, &m_ptr, 0)) { \
US_DELETE(m_ptr, x_free_item); \
} \
} \
us_queue_destroy(x_queue); \
} \
}
us_queue_s *us_queue_init(uint capacity);
void us_queue_destroy(us_queue_s *queue);
int us_queue_put(us_queue_s *queue, void *item, ldf timeout);
int us_queue_get(us_queue_s *queue, void **item, ldf timeout);
bool us_queue_is_empty(us_queue_s *queue);