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/*
* Ouroboros - Copyright (C) 2016 - 2024
*
* The IPC Resource Manager - Registry - IPCPs
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#if defined(__linux__) || defined(__CYGWIN__)
#define _DEFAULT_SOURCE
#else
#define _POSIX_C_SOURCE 200809L
#endif
#include "config.h"
#include <ouroboros/errno.h>
#include <ouroboros/hash.h>
#include <ouroboros/ipcp.h>
#include <ouroboros/pthread.h>
#include <ouroboros/time_utils.h>
#include "ipcp.h"
#include <assert.h>
#include <signal.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
struct reg_ipcp * reg_ipcp_create(const struct ipcp_info * info)
{
struct reg_ipcp * ipcp;
pthread_condattr_t cattr;
ipcp = malloc(sizeof(*ipcp));
if (ipcp == NULL)
goto fail_malloc;
if (pthread_mutex_init(&ipcp->mtx, NULL))
goto fail_mutex;
if (pthread_condattr_init(&cattr))
goto fail_cattr;
#ifndef __APPLE__
pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
#endif
if (pthread_cond_init(&ipcp->cond, &cattr))
goto fail_cond;
memcpy(&ipcp->info, info, sizeof(*info));
pthread_condattr_destroy(&cattr);
ipcp->layer = NULL;
ipcp->state = IPCP_BOOT;
list_head_init(&ipcp->next);
return ipcp;
fail_cond:
pthread_condattr_destroy(&cattr);
fail_cattr:
pthread_mutex_destroy(&ipcp->mtx);
fail_mutex:
free(ipcp);
fail_malloc:
return NULL;
}
void reg_ipcp_destroy(struct reg_ipcp * ipcp)
{
assert(ipcp);
pthread_mutex_lock(&ipcp->mtx);
while (ipcp->state == IPCP_BOOT)
pthread_cond_wait(&ipcp->cond, &ipcp->mtx);
free(ipcp->layer);
pthread_mutex_unlock(&ipcp->mtx);
pthread_cond_destroy(&ipcp->cond);
pthread_mutex_destroy(&ipcp->mtx);
free(ipcp);
}
void reg_ipcp_set_state(struct reg_ipcp * ipcp,
enum ipcp_state state)
{
pthread_mutex_lock(&ipcp->mtx);
ipcp->state = state;
pthread_cond_broadcast(&ipcp->cond);
pthread_mutex_unlock(&ipcp->mtx);
}
int reg_ipcp_wait_boot(struct reg_ipcp * ipcp)
{
int ret = 0;
struct timespec dl;
struct timespec to = {SOCKET_TIMEOUT / 1000,
(SOCKET_TIMEOUT % 1000) * MILLION};
clock_gettime(PTHREAD_COND_CLOCK, &dl);
ts_add(&dl, &to, &dl);
pthread_mutex_lock(&ipcp->mtx);
while (ipcp->state == IPCP_BOOT && ret != ETIMEDOUT)
ret = pthread_cond_timedwait(&ipcp->cond, &ipcp->mtx, &dl);
if (ret == ETIMEDOUT) {
kill(ipcp->pid, SIGTERM);
ipcp->state = IPCP_NULL;
pthread_cond_signal(&ipcp->cond);
}
if (ipcp->state != IPCP_OPERATIONAL) {
pthread_mutex_unlock(&ipcp->mtx);
return -1;
}
pthread_mutex_unlock(&ipcp->mtx);
return 0;
}
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