ipcpd: Rename hashtable to pft

This makes the hashtable more tailored to a packet forwarding table
(PFT). In the end not much of a change was needed, but now it's clear
the pft maps a destination address to a list of (outgoing) fds.

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

1 files changed, 0 insertions, 222 deletions

diff --git a/src/ipcpd/unicast/pol/hashtable.c b/src/ipcpd/unicast/pol/hashtable.c
deleted file mode 100644
index 596219f3..00000000
--- a/src/ipcpd/unicast/pol/hashtable.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Ouroboros - Copyright (C) 2016 - 2020
- *
- * Hash table with integer keys with separate chaining on collisions
- *
- *    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
-#endif
-
-#include <ouroboros/list.h>
-#include <ouroboros/errno.h>
-#include <ouroboros/hash.h>
-
-#include "hashtable.h"
-
-#include <assert.h>
-#include <string.h>
-
-struct htable_entry {
-        struct list_head next;
-        uint64_t         key;
-        void *           val;
-        size_t           len;
-};
-
-struct htable {
-        struct list_head * buckets;
-        bool               hash_key;
-        uint64_t           buckets_size;
-};
-
-struct htable * htable_create(uint64_t buckets,
-                              bool     hash_key)
-{
-        struct htable * tmp;
-        unsigned int i;
-
-        if (buckets == 0)
-                return NULL;
-
-        buckets--;
-        buckets |= buckets >> 1;
-        buckets |= buckets >> 2;
-        buckets |= buckets >> 4;
-        buckets |= buckets >> 8;
-        buckets |= buckets >> 16;
-        buckets |= buckets >> 32;
-        buckets++;
-
-        tmp = malloc(sizeof(*tmp));
-        if (tmp == NULL)
-                return NULL;
-
-        tmp->hash_key = hash_key;
-        tmp->buckets_size = buckets;
-
-        tmp->buckets = malloc(buckets * sizeof(*tmp->buckets));
-        if (tmp->buckets == NULL) {
-                free(tmp);
-                return NULL;
-        }
-
-        for (i = 0; i < buckets; i++)
-                list_head_init(&(tmp->buckets[i]));
-
-        return tmp;
-}
-
-void htable_destroy(struct htable * table)
-{
-        assert(table);
-        assert(table->buckets);
-
-        htable_flush(table);
-        free(table->buckets);
-        free(table);
-}
-
-void htable_flush(struct htable * table)
-{
-        unsigned int          i;
-        struct list_head *    pos = NULL;
-        struct list_head *    n = NULL;
-        struct htable_entry * entry;
-
-        assert(table);
-
-        for (i = 0; i < table->buckets_size; i++) {
-                list_for_each_safe(pos, n, &(table->buckets[i])) {
-                        entry = list_entry(pos, struct htable_entry, next);
-                        list_del(&entry->next);
-                        free(entry->val);
-                        free(entry);
-                }
-        }
-}
-
-static uint64_t hash(uint64_t key)
-{
-        void *   res;
-        uint64_t ret;
-        uint8_t  keys[4];
-
-        memcpy(keys, &key, 4);
-
-        mem_hash(HASH_MD5, &res, keys, 4);
-
-        ret = (* (uint64_t *) res);
-
-        free(res);
-
-        return ret;
-}
-
-static uint64_t calc_key(struct htable * table,
-                         uint64_t        key)
-{
-        if (table->hash_key)
-                key = hash(key);
-
-        return (key & (table->buckets_size - 1));
-}
-
-int htable_insert(struct htable * table,
-                  uint64_t        key,
-                  void *          val,
-                  size_t          len)
-{
-        struct htable_entry * entry;
-        uint64_t              lookup_key;
-        struct list_head *    pos = NULL;
-
-        assert(table);
-
-        lookup_key = calc_key(table, key);
-
-        list_for_each(pos, &(table->buckets[lookup_key])) {
-                entry = list_entry(pos, struct htable_entry, next);
-                if (entry->key == key)
-                        return -1;
-        }
-
-        entry = malloc(sizeof(*entry));
-        if (entry == NULL)
-                return -ENOMEM;
-
-        entry->key = key;
-        entry->val = val;
-        entry->len = len;
-        list_head_init(&entry->next);
-
-        list_add(&entry->next, &(table->buckets[lookup_key]));
-
-        return 0;
-}
-
-int htable_lookup(struct htable * table,
-                  uint64_t        key,
-                  void **         val,
-                  size_t *        len)
-{
-        struct htable_entry * entry;
-        struct list_head *    pos = NULL;
-        uint64_t              lookup_key;
-
-        assert(table);
-
-        lookup_key = calc_key(table, key);
-
-        list_for_each(pos, &(table->buckets[lookup_key])) {
-                entry = list_entry(pos, struct htable_entry, next);
-                if (entry->key == key) {
-                        *val = entry->val;
-                        *len = entry->len;
-                        return 0;
-                }
-        }
-
-        return -1;
-}
-
-int htable_delete(struct htable * table,
-                  uint64_t        key)
-{
-        struct htable_entry * entry;
-        uint64_t              lookup_key;
-        struct list_head *    pos = NULL;
-        struct list_head *    n = NULL;
-
-        assert(table);
-
-        lookup_key = calc_key(table, key);
-
-        list_for_each_safe(pos, n, &(table->buckets[lookup_key])) {
-                entry = list_entry(pos, struct htable_entry, next);
-                if (entry->key == key) {
-                        list_del(&entry->next);
-                        free(entry->val);
-                        free(entry);
-                        return 0;
-                }
-        }
-
-        return -1;
-}