irmd: Move registry objects to their own sources

Rename internal data structures so it's clear that they are the IRMd
representation of these objects for management purposes.

Split functionality for these objects off and and move them to their
own source files.

Rename internal functions of the IRMd to reflect this, with some small
refactoring.

Signed-off-by: Dimitri Staessens <[email protected]>
Signed-off-by: Sander Vrijders <[email protected]>

1 files changed, 0 insertions, 297 deletions

diff --git a/src/irmd/proc_table.c b/src/irmd/proc_table.c
deleted file mode 100644
index ee87813d..00000000
--- a/src/irmd/proc_table.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2023
- *
- * The IPC Resource Manager - Process Table
- *
- *    Dimitri Staessens <[email protected]>
- *    Sander Vrijders   <[email protected]>
- *
- * 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 200112L
-#endif
-
-#include "config.h"
-
-#include <ouroboros/list.h>
-#include <ouroboros/errno.h>
-#include <ouroboros/time_utils.h>
-
-#include "proc_table.h"
-#include "registry.h"
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <limits.h>
-#include <assert.h>
-
-struct proc_entry * proc_entry_create(pid_t  pid,
-                                      char * prog)
-{
-        struct proc_entry * e;
-        pthread_condattr_t  cattr;
-
-        assert(prog);
-
-        e = malloc(sizeof(*e));
-        if (e == NULL)
-                goto fail_malloc;
-
-        if (pthread_condattr_init(&cattr))
-                goto fail_condattr;
-
-#ifndef __APPLE__
-        pthread_condattr_setclock(&cattr, PTHREAD_COND_CLOCK);
-#endif
-
-        if (pthread_mutex_init(&e->lock, NULL))
-                goto fail_mutex;
-
-        if (pthread_cond_init(&e->cond, &cattr))
-                goto fail_cond;
-
-        e->set = shm_flow_set_create(pid);
-        if (e->set == NULL)
-                goto fail_set;
-
-        list_head_init(&e->next);
-        list_head_init(&e->names);
-
-        e->pid      = pid;
-        e->prog     = prog;
-        e->re       = NULL;
-        e->state    = PROC_INIT;
-
-        return e;
- fail_set:
-        pthread_cond_destroy(&e->cond);;
- fail_cond:
-        pthread_mutex_destroy(&e->lock);
- fail_mutex:
-        pthread_condattr_destroy(&cattr);
- fail_condattr:
-        free(e);
- fail_malloc:
-        return NULL;
-}
-
-static void cancel_proc_entry(void * o)
-{
-        struct proc_entry * e = (struct proc_entry *) o;
-
-        e->state = PROC_NULL;
-
-        pthread_mutex_unlock(&e->lock);
-}
-
-void proc_entry_destroy(struct proc_entry * e)
-{
-        struct list_head * p;
-        struct list_head * h;
-
-        assert(e);
-
-        pthread_mutex_lock(&e->lock);
-
-        if (e->state == PROC_DESTROY) {
-                pthread_mutex_unlock(&e->lock);
-                return;
-        }
-
-        if (e->state == PROC_SLEEP)
-                e->state = PROC_DESTROY;
-
-        pthread_cond_signal(&e->cond);
-
-        pthread_cleanup_push(cancel_proc_entry, e);
-
-        while (e->state != PROC_INIT)
-                pthread_cond_wait(&e->cond, &e->lock);
-
-        pthread_cleanup_pop(false);
-
-        pthread_mutex_unlock(&e->lock);
-
-        shm_flow_set_destroy(e->set);
-
-        pthread_cond_destroy(&e->cond);
-        pthread_mutex_destroy(&e->lock);
-
-        if (e->prog != NULL)
-                free(e->prog);
-
-        list_for_each_safe(p, h, &e->names) {
-                struct str_el * n = list_entry(p, struct str_el, next);
-                list_del(&n->next);
-                if (n->str != NULL)
-                        free(n->str);
-                free(n);
-        }
-
-        free(e);
-}
-
-int proc_entry_add_name(struct proc_entry * e,
-                        char *              name)
-{
-        struct str_el * s;
-
-        assert(e);
-        assert(name);
-
-        s = malloc(sizeof(*s));
-        if (s == NULL)
-                return -ENOMEM;
-
-        s->str = name;
-        list_add(&s->next, &e->names);
-
-        return 0;
-}
-
-void proc_entry_del_name(struct proc_entry * e,
-                         const char *        name)
-{
-        struct list_head * p = NULL;
-        struct list_head * h = NULL;
-
-        assert(e);
-        assert(name);
-
-        list_for_each_safe(p, h, &e->names) {
-                struct str_el * s = list_entry(p, struct str_el, next);
-                if (!strcmp(name, s->str)) {
-                        list_del(&s->next);
-                        free(s->str);
-                        free(s);
-                }
-        }
-}
-
-int proc_entry_sleep(struct proc_entry * e,
-                     struct timespec *   dl)
-{
-
-        int ret = 0;
-
-        assert(e);
-
-        pthread_mutex_lock(&e->lock);
-
-        if (e->state != PROC_WAKE && e->state != PROC_DESTROY)
-                e->state = PROC_SLEEP;
-
-        pthread_cleanup_push(cancel_proc_entry, e);
-
-        while (e->state == PROC_SLEEP && ret != -ETIMEDOUT)
-                if (dl != NULL)
-                        ret = -pthread_cond_timedwait(&e->cond, &e->lock, dl);
-                else
-                        ret = -pthread_cond_wait(&e->cond, &e->lock);
-
-        pthread_cleanup_pop(false);
-
-        if (e->state == PROC_DESTROY) {
-                if (e->re != NULL)
-                        reg_entry_del_pid(e->re, e->pid);
-                ret = -1;
-        }
-
-        e->state = PROC_INIT;
-
-        pthread_cond_broadcast(&e->cond);
-        pthread_mutex_unlock(&e->lock);
-
-        return ret;
-}
-
-void proc_entry_wake(struct proc_entry * e,
-                     struct reg_entry *  re)
-{
-        assert(e);
-        assert(re);
-
-        pthread_mutex_lock(&e->lock);
-
-        if (e->state != PROC_SLEEP) {
-                pthread_mutex_unlock(&e->lock);
-                return;
-        }
-
-        e->state = PROC_WAKE;
-        e->re    = re;
-
-        pthread_cond_broadcast(&e->cond);
-
-        pthread_cleanup_push(cancel_proc_entry, e);
-
-        while (e->state == PROC_WAKE)
-                pthread_cond_wait(&e->cond, &e->lock);
-
-        pthread_cleanup_pop(false);
-
-        if (e->state == PROC_DESTROY)
-                e->state = PROC_INIT;
-
-        pthread_mutex_unlock(&e->lock);
-}
-
-int proc_table_add(struct list_head *  proc_table,
-                   struct proc_entry * e)
-{
-
-        assert(proc_table);
-        assert(e);
-
-        list_add(&e->next, proc_table);
-
-        return 0;
-}
-
-void proc_table_del(struct list_head * proc_table,
-                    pid_t              pid)
-{
-        struct list_head * p;
-        struct list_head * h;
-
-        assert(proc_table);
-
-        list_for_each_safe(p, h, proc_table) {
-                struct proc_entry * e = list_entry(p, struct proc_entry, next);
-                if (pid == e->pid) {
-                        list_del(&e->next);
-                        proc_entry_destroy(e);
-                }
-        }
-}
-
-struct proc_entry * proc_table_get(struct list_head * proc_table,
-                                   pid_t              pid)
-{
-        struct list_head * h;
-
-        assert(proc_table);
-
-        list_for_each(h, proc_table) {
-                struct proc_entry * e = list_entry(h, struct proc_entry, next);
-                if (pid == e->pid)
-                        return e;
-        }
-
-        return NULL;
-}