From d24ddb0350ddb402bd9d219e129439cdbd77ecfe Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 20 Jun 2011 18:40:33 +0930
Subject: tdb2: add lib/tdb2 (from CCAN init-1161-g661d41f)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 lib/tdb2/test/run-15-append.c | 135 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 lib/tdb2/test/run-15-append.c

(limited to 'lib/tdb2/test/run-15-append.c')

diff --git a/lib/tdb2/test/run-15-append.c b/lib/tdb2/test/run-15-append.c
new file mode 100644
index 0000000000..d2f9ec6598
--- /dev/null
+++ b/lib/tdb2/test/run-15-append.c
@@ -0,0 +1,135 @@
+#include <ccan/tdb2/tdb.c>
+#include <ccan/tdb2/open.c>
+#include <ccan/tdb2/free.c>
+#include <ccan/tdb2/lock.c>
+#include <ccan/tdb2/io.c>
+#include <ccan/tdb2/hash.c>
+#include <ccan/tdb2/check.c>
+#include <ccan/tdb2/transaction.c>
+#include <ccan/tap/tap.h>
+#include <ccan/ilog/ilog.h>
+#include "logging.h"
+
+#define MAX_SIZE 13100
+#define SIZE_STEP 131
+
+static tdb_off_t tdb_offset(struct tdb_context *tdb, struct tdb_data key)
+{
+	tdb_off_t off;
+	struct tdb_used_record rec;
+	struct hash_info h;
+
+	off = find_and_lock(tdb, key, F_RDLCK, &h, &rec, NULL);
+	if (TDB_OFF_IS_ERR(off))
+		return 0;
+	tdb_unlock_hashes(tdb, h.hlock_start, h.hlock_range, F_RDLCK);
+	return off;
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int i, j, moves;
+	struct tdb_context *tdb;
+	unsigned char *buffer;
+	tdb_off_t oldoff = 0, newoff;
+	int flags[] = { TDB_INTERNAL, TDB_DEFAULT, TDB_NOMMAP,
+			TDB_INTERNAL|TDB_CONVERT, TDB_CONVERT,
+			TDB_NOMMAP|TDB_CONVERT };
+	struct tdb_data key = tdb_mkdata("key", 3);
+	struct tdb_data data;
+
+	buffer = malloc(MAX_SIZE);
+	for (i = 0; i < MAX_SIZE; i++)
+		buffer[i] = i;
+
+	plan_tests(sizeof(flags) / sizeof(flags[0])
+		   * ((3 + MAX_SIZE/SIZE_STEP * 5) * 2 + 7)
+		   + 1);
+
+	/* Using tdb_store. */
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		tdb = tdb_open("run-append.tdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(tdb);
+		if (!tdb)
+			continue;
+
+		moves = 0;
+		for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
+			data.dptr = buffer;
+			data.dsize = j;
+			ok1(tdb_store(tdb, key, data, TDB_REPLACE) == 0);
+			ok1(tdb_check(tdb, NULL, NULL) == 0);
+			ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
+			ok1(data.dsize == j);
+			ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+			free(data.dptr);
+			newoff = tdb_offset(tdb, key);
+			if (newoff != oldoff)
+				moves++;
+			oldoff = newoff;
+		}
+		ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
+				   && tdb->file->num_lockrecs == 0));
+		/* We should increase by 50% each time... */
+		ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
+		tdb_close(tdb);
+	}
+
+	/* Using tdb_append. */
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		size_t prev_len = 0;
+		tdb = tdb_open("run-append.tdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(tdb);
+		if (!tdb)
+			continue;
+
+		moves = 0;
+		for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
+			data.dptr = buffer + prev_len;
+			data.dsize = j - prev_len;
+			ok1(tdb_append(tdb, key, data) == 0);
+			ok1(tdb_check(tdb, NULL, NULL) == 0);
+			ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
+			ok1(data.dsize == j);
+			ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+			free(data.dptr);
+			prev_len = data.dsize;
+			newoff = tdb_offset(tdb, key);
+			if (newoff != oldoff)
+				moves++;
+			oldoff = newoff;
+		}
+		ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
+				   && tdb->file->num_lockrecs == 0));
+		/* We should increase by 50% each time... */
+		ok(moves <= ilog64(j / SIZE_STEP)*2, "Moved %u times", moves);
+		tdb_close(tdb);
+	}
+
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		tdb = tdb_open("run-append.tdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(tdb);
+		if (!tdb)
+			continue;
+
+		/* Huge initial store. */
+		data.dptr = buffer;
+		data.dsize = MAX_SIZE;
+		ok1(tdb_append(tdb, key, data) == 0);
+		ok1(tdb_check(tdb, NULL, NULL) == 0);
+		ok1(tdb_fetch(tdb, key, &data) == TDB_SUCCESS);
+		ok1(data.dsize == MAX_SIZE);
+		ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+		free(data.dptr);
+		ok1(!tdb->file || (tdb->file->allrecord_lock.count == 0
+				   && tdb->file->num_lockrecs == 0));
+		tdb_close(tdb);
+	}
+
+	ok1(tap_log_messages == 0);
+	free(buffer);
+	return exit_status();
+}
-- 
cgit