From 5366100e4a804acc9f9c36b30b8da091483d8050 Mon Sep 17 00:00:00 2001
From: Ralph Ronnquist <ralph.ronnquist@gmail.com>
Date: Sun, 26 Jun 2022 15:46:59 +1000
Subject: [PATCH 1/1] added

---
 tests/example-hashvector.c | 64 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 tests/example-hashvector.c

diff --git a/tests/example-hashvector.c b/tests/example-hashvector.c
new file mode 100644
index 0000000..63c5582
--- /dev/null
+++ b/tests/example-hashvector.c
@@ -0,0 +1,64 @@
+#include <stdlib.h>
+#include <string.h>
+#include "hashvector.h"
+
+typedef struct _ipslot {
+    int family;
+    unsigned char data[32];
+    unsigned int bits;
+} ipslot;
+
+static unsigned long voidp_hashcode(void *key) {
+    return hashvector_hashcode( key, sizeof( ipslot ) );
+}
+
+static void* voidp_itemkey(void *item) {
+    return item;
+}
+
+static int voidp_haskey(void *item,void *key) {
+    return memcmp( item, key, sizeof( ipslot ) ) == 0;
+}
+
+static int shrink(vector *pv,unsigned long index,void *item,void *data) {
+    if ( item ) {
+	if ( item == HV_HOLE ) {
+	    ((hashvector*) data)->holes--;
+	} else {
+	    free( item );
+	    ((hashvector*) data)->fill--;
+	}
+    }
+    return 0;
+}
+
+int main(int argc,char **argv) {
+    hashvector hv = {
+	.table = { 4, 0 },
+	.fill = 0,
+	.holes = 0,
+	.keyhashcode = voidp_hashcode,
+	.itemkey = voidp_itemkey,
+	.haskey = voidp_haskey
+    };
+    int i = 0;
+    for ( ; i < 259; i++ ) {
+	ipslot *item = (ipslot*) calloc( 1, sizeof( ipslot ) );
+	if ( i > 250 ) {
+	    int n = i;
+	    i = n;
+	}
+	item->family = i;
+	memcpy( item->data, "10.10.10.1", 10 );
+	hashvector_add( &hv, item );
+    }
+    for ( i = 256; i < 260; i++ ) {
+	vector_index index = i;
+	void ** slot = vector_next_used( &hv.table, &index, 0, 0 );
+	if ( slot && *slot != HV_HOLE ) {
+	    hashvector_delete( &hv, *slot );
+	}
+    }
+    vector_resize( &hv.table, 256, shrink, &hv );
+    return 0;
+}
-- 
2.39.2