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/*
* Ouroboros - Copyright (C) 2016 - 2024
*
* The IPC Resource Manager - Registry - Processes
*
* Dimitri Staessens <dimitri@ouroboros.rocks>
* Sander Vrijders <sander@ouroboros.rocks>
*
* This procram 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 procram 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 procram; if not, write to the Free Software
* Foundation, Inc., http://www.fsf.org/about/contact/.
*/
#define _POSIX_C_SOURCE 200809L
#define OUROBOROS_PREFIX "reg/proc"
#include <ouroboros/logs.h>
#include "proc.h"
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
struct name_entry {
struct list_head next;
char * name;
};
static void __free_name_entry(struct name_entry * entry)
{
assert(entry != NULL);
assert(entry->name != NULL);
free(entry->name);
free(entry);
}
static void __reg_proc_clear_names(struct reg_proc * proc)
{
struct list_head * p;
struct list_head * h;
assert(proc != NULL);
list_for_each_safe(p, h, &proc->names) {
struct name_entry * entry;
entry = list_entry(p, struct name_entry, next);
list_del(&entry->next);
__free_name_entry(entry);
proc->n_names--;
}
}
struct reg_proc * reg_proc_create(const struct proc_info * info)
{
struct reg_proc * proc;
assert(info != NULL);
proc = malloc(sizeof(*proc));
if (proc == NULL) {
log_err("Failed to malloc proc.");
goto fail_malloc;
}
proc->set = shm_flow_set_create(info->pid);
if (proc->set == NULL) {
log_err("Failed to create flow set for %d.", info->pid);
goto fail_set;
}
list_head_init(&proc->next);
list_head_init(&proc->names);
proc->info = *info;
proc->n_names = 0;
return proc;
fail_set:
free(proc);
fail_malloc:
return NULL;
}
void reg_proc_destroy(struct reg_proc * proc)
{
assert(proc != NULL);
shm_flow_set_destroy(proc->set);
__reg_proc_clear_names(proc);
assert(list_is_empty(&proc->next));
assert(proc->n_names == 0);
assert(list_is_empty(&proc->names));
free(proc);
}
static struct name_entry * __reg_proc_get_name(const struct reg_proc * proc,
const char * name)
{
struct list_head * p;
list_for_each(p, &proc->names) {
struct name_entry * entry;
entry = list_entry(p, struct name_entry, next);
if (strcmp(entry->name, name) == 0)
return entry;
}
return NULL;
}
int reg_proc_add_name(struct reg_proc * proc,
const char * name)
{
struct name_entry * entry;
assert(__reg_proc_get_name(proc, name) == NULL);
entry = malloc(sizeof(*entry));
if (entry == NULL) {
log_err("Failed to malloc name.");
goto fail_malloc;
}
entry->name = strdup(name);
if (entry == NULL) {
log_err("Failed to strdup name.");
goto fail_name;
}
list_add(&entry->next, &proc->names);
proc->n_names++;
return 0;
fail_name:
free(entry);
fail_malloc:
return -1;
}
void reg_proc_del_name(struct reg_proc * proc,
const char * name)
{
struct name_entry * entry;
entry = __reg_proc_get_name(proc, name);
if(entry == NULL)
return;
list_del(&entry->next);
__free_name_entry(entry);
proc->n_names--;
assert(__reg_proc_get_name(proc, name) == NULL);
}
bool reg_proc_has_name(const struct reg_proc * proc,
const char * name)
{
return __reg_proc_get_name(proc, name) != NULL;
}
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