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/*
* Ouroboros - Copyright (C) 2016 - 2026
*
* The IPC Resource Manager - Registry - Per-User Pools
*
* 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/.
*/
#define _POSIX_C_SOURCE 200809L
#define OUROBOROS_PREFIX "reg/pool"
#include <ouroboros/logs.h>
#include <ouroboros/ssm_pool.h>
#include "pool.h"
#include <assert.h>
#include <stdlib.h>
struct reg_pool * reg_pool_create(uid_t uid,
gid_t gid)
{
struct reg_pool * pool;
pool = malloc(sizeof(*pool));
if (pool == NULL) {
log_err("Failed to malloc pool.");
goto fail_malloc;
}
pool->ssm = ssm_pool_create(uid, gid);
if (pool->ssm == NULL) {
log_err("Failed to create PUP for uid %d.", uid);
goto fail_ssm;
}
list_head_init(&pool->next);
pool->uid = uid;
pool->gid = gid;
pool->refcount = 1;
log_dbg("Created PUP for uid %d gid %d.", uid, gid);
return pool;
fail_ssm:
free(pool);
fail_malloc:
return NULL;
}
void reg_pool_destroy(struct reg_pool * pool)
{
assert(pool != NULL);
assert(pool->refcount == 0);
log_dbg("Destroying PUP for uid %d.", pool->uid);
ssm_pool_destroy(pool->ssm);
assert(list_is_empty(&pool->next));
free(pool);
}
void reg_pool_ref(struct reg_pool * pool)
{
assert(pool != NULL);
assert(pool->refcount > 0);
pool->refcount++;
log_dbg("PUP uid %d refcount++ -> %zu.", pool->uid, pool->refcount);
}
int reg_pool_unref(struct reg_pool * pool)
{
assert(pool != NULL);
assert(pool->refcount > 0);
pool->refcount--;
log_dbg("PUP uid %d refcount-- -> %zu.", pool->uid, pool->refcount);
return pool->refcount == 0 ? 0 : 1;
}
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