70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/* thread.c - thread management.
|
|
*
|
|
* Copyright (C) 2024 Bruno Raoult ("br")
|
|
* Licensed under the GNU General Public License v3.0 or later.
|
|
* Some rights reserved. See COPYING.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with this
|
|
* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
|
|
*
|
|
* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <brlib.h>
|
|
#include <pthread.h>
|
|
#include <poll.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include "thread.h"
|
|
|
|
/* Still have to decide: thread or process ?
|
|
*
|
|
*/
|
|
thread_pool_t threadpool;
|
|
|
|
/**
|
|
* thrd_create - initialize thrd.
|
|
*/
|
|
int thrd_create(__unused int num)
|
|
{
|
|
int fd[2];
|
|
/* shall we make a communication channel via a pipe or socket ? */
|
|
int __unused ret = socketpair(AF_LOCAL, SOCK_SEQPACKET, PF_LOCAL, fd);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* thread_init - initialize thread pool.
|
|
*/
|
|
int thread_init(int nb)
|
|
{
|
|
nb = clamp(nb, MIN_THRDS, MAX_THRDS);
|
|
|
|
/* stop unwanted threads, always keep 1 */
|
|
for (int i = nb + 1; i < threadpool.nb; ++i) {
|
|
printf("stopping thread %d - status = \n", i);
|
|
threadpool.thread[i].cmd = THRD_DO_QUIT;
|
|
}
|
|
for (int i = threadpool.nb; i < nb; ++i) {
|
|
printf("creating thread %d - status = \n", i);
|
|
thrd_create(i);
|
|
|
|
}
|
|
|
|
return nb;
|
|
}
|
|
|
|
/*
|
|
communication:
|
|
main thread -> thread
|
|
commands via memory
|
|
thread -> main thread
|
|
status via memory
|
|
output via pipe/socket
|
|
thread output will be output/filtered by main thread
|
|
|
|
*/
|