Move stuff around, again

1 files changed, 0 insertions, 177 deletions

diff --git a/src/common/libalgo/hashtbl.c b/src/common/libalgo/hashtbl.c
deleted file mode 100644
index 0284d75..0000000
--- a/src/common/libalgo/hashtbl.c
+++ /dev/null
@@ -1,177 +0,0 @@
-#include <debug.h>
-#include <malloc.h>
-
-#include <hashtbl.h>
-
-#define DEFAULT_HT_INIT_SIZE 16
-#define SLOT_OF_HASH(k, nslots) (((size_t)(k)*21179)%(size_t)(nslots))
-
-typedef struct hashtbl_item {
-	void* key;
-	void* val;
-	struct hashtbl_item *next;
-} hashtbl_item_t;
-
-// When nitems > size * 3/4, size is multiplied by two
-// When nitems < size * 1/4, size is divided by two
-struct hashtbl {
-	key_eq_fun_t ef;
-	hash_fun_t hf;
-	kv_iter_fun_t releasef;
-	size_t size, nitems;
-	hashtbl_item_t **items;
-};
-
-hashtbl_t *create_hashtbl(key_eq_fun_t ef, hash_fun_t hf, kv_iter_fun_t on_release) {
-	hashtbl_t *ht = (hashtbl_t*)malloc(sizeof(hashtbl_t));
-	if (ht == 0) return 0;
-
-	ht->ef = ef;
-	ht->hf = hf;
-	ht->releasef = on_release;
-
-	ht->size = DEFAULT_HT_INIT_SIZE;
-	ht->nitems = 0;
-
-	ht->items = (hashtbl_item_t**)malloc(ht->size * sizeof(hashtbl_item_t*));
-	if (ht->items == 0) {
-		free(ht);
-		return 0;
-	}
-
-	for (size_t i = 0; i < ht->size; i++) ht->items[i] = 0;
-
-	return ht;
-}
-
-void delete_hashtbl(hashtbl_t *ht) {
-	// Free items
-	for (size_t i = 0; i < ht->size; i++) {
-		while (ht->items[i] != 0) {
-			hashtbl_item_t *x = ht->items[i];
-			ht->items[i] = x->next;
-
-			if (ht->releasef) ht->releasef(x->key, x->val);
-			
-			free(x);
-		}
-	}
-
-	// Free table
-	free(ht->items);
-	free(ht);
-}
-
-void hashtbl_check_size(hashtbl_t *ht) {
-	size_t nsize = 0;
-	if (4 * ht->nitems < ht->size) nsize = ht->size / 2;
-	if (4 * ht->nitems > 3 * ht->size) nsize = ht->size * 2;
-
-	if (nsize != 0 && nsize >= DEFAULT_HT_INIT_SIZE) {
-		hashtbl_item_t **nitems = (hashtbl_item_t**)malloc(nsize * sizeof(hashtbl_item_t*));
-		if (nitems == 0) return;	// if we can't realloc, too bad, we just lose space/efficienty
-
-		for (size_t i = 0; i < nsize; i++) nitems[i] = 0;
-
-		// rehash
-		for (size_t i = 0; i < ht->size; i++) {
-			while (ht->items[i] != 0) {
-				hashtbl_item_t *x = ht->items[i];
-				ht->items[i] = x->next;
-
-				size_t slot = SLOT_OF_HASH(ht->hf(x->key), nsize);
-				x->next = nitems[slot];
-				nitems[slot] = x;
-			}
-		}
-		free(ht->items);
-		ht->size = nsize;
-		ht->items = nitems;
-	}
-}
-
-bool hashtbl_add(hashtbl_t *ht, void* key, void* v) {
-	hashtbl_item_t *i = (hashtbl_item_t*)malloc(sizeof(hashtbl_item_t));
-	if (i == 0) return false;	// OOM
-
-	// make sure item is not already present
-	hashtbl_remove(ht, key);
-
-	size_t slot = SLOT_OF_HASH(ht->hf(key), ht->size);
-
-	i->key = key;
-	i->val = v;
-	i->next = ht->items[slot];
-	ht->items[slot] = i;
-	ht->nitems++;
-
-	hashtbl_check_size(ht);
-
-	return true;
-}
-
-void hashtbl_remove(hashtbl_t* ht, const void* key) {
-	size_t slot = SLOT_OF_HASH(ht->hf(key), ht->size);
-
-	if (ht->items[slot] == 0) return;
-
-	hashtbl_item_t *x = 0;
-
-	if (ht->ef(ht->items[slot]->key, key)) {
-		x = ht->items[slot];
-		ht->items[slot] = x->next;
-	} else {
-		for (hashtbl_item_t *i = ht->items[slot]; i->next != 0; i = i->next) {
-			if (ht->ef(i->next->key, key)) {
-				x = i->next;
-				i->next = x->next;
-				break;
-			}
-		}
-	}
-
-	if (x != 0) {
-		ht->nitems--;
-		if (ht->releasef) ht->releasef(x->key, x->val);
-		free(x);
-	}
-	
-	hashtbl_check_size(ht);
-}
-
-void* hashtbl_find(hashtbl_t* ht, const void* key) {
-	size_t slot = SLOT_OF_HASH(ht->hf(key), ht->size);
-
-	for (hashtbl_item_t *i = ht->items[slot]; i != 0; i = i->next) {
-		if (ht->ef(i->key, key)) return i->val;
-	}
-
-	return 0;
-}
-
-void hashtbl_iter(hashtbl_t *ht, kv_iter_fun_t f) {
-	for (size_t s = 0; s < ht->size; s++) {
-		for (hashtbl_item_t *i = ht->items[s]; i != 0; i = i->next) {
-			f(i->key, i->val);
-		}
-	}
-}
-
-size_t hashtbl_count(hashtbl_t* ht) {
-	return ht->nitems;
-}
-
-bool hashtbl_change(hashtbl_t* ht, void* key, void* newval) {
-	size_t slot = SLOT_OF_HASH(ht->hf(key), ht->size);
-
-	for (hashtbl_item_t *i = ht->items[slot]; i != 0; i = i->next) {
-		if (ht->ef(i->key, key)) {
-			i->val = newval;
-			return true;
-		}
-	}
-
-	return false;
-}
-
-/* vim: set ts=4 sw=4 tw=0 noet :*/