1 files changed, 130 insertions, 0 deletions
diff --git a/lib/ntdb/test/run-15-append.c b/lib/ntdb/test/run-15-append.c
new file mode 100644
index 0000000000..3c208137f2
--- /dev/null
+++ b/lib/ntdb/test/run-15-append.c
@@ -0,0 +1,130 @@
+#include "ntdb-source.h"
+#include "tap-interface.h"
+#include <ccan/ilog/ilog.h>
+#include "logging.h"
+
+#define MAX_SIZE 13100
+#define SIZE_STEP 131
+
+static ntdb_off_t ntdb_offset(struct ntdb_context *ntdb, NTDB_DATA key)
+{
+	ntdb_off_t off;
+	struct ntdb_used_record urec;
+	struct hash_info h;
+
+	off = find_and_lock(ntdb, key, F_RDLCK, &h, &urec, NULL);
+	if (NTDB_OFF_IS_ERR(off))
+		return 0;
+	ntdb_unlock_hashes(ntdb, h.hlock_start, h.hlock_range, F_RDLCK);
+	return off;
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int i, j, moves;
+	struct ntdb_context *ntdb;
+	unsigned char *buffer;
+	ntdb_off_t oldoff = 0, newoff;
+	int flags[] = { NTDB_INTERNAL, NTDB_DEFAULT, NTDB_NOMMAP,
+			NTDB_INTERNAL|NTDB_CONVERT, NTDB_CONVERT,
+			NTDB_NOMMAP|NTDB_CONVERT };
+	NTDB_DATA key = ntdb_mkdata("key", 3);
+	NTDB_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 ntdb_store. */
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		ntdb = ntdb_open("run-append.ntdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(ntdb);
+		if (!ntdb)
+			continue;
+
+		moves = 0;
+		for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
+			data.dptr = buffer;
+			data.dsize = j;
+			ok1(ntdb_store(ntdb, key, data, NTDB_REPLACE) == 0);
+			ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+			ok1(ntdb_fetch(ntdb, key, &data) == NTDB_SUCCESS);
+			ok1(data.dsize == j);
+			ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+			free(data.dptr);
+			newoff = ntdb_offset(ntdb, key);
+			if (newoff != oldoff)
+				moves++;
+			oldoff = newoff;
+		}
+		ok1(!ntdb->file || (ntdb->file->allrecord_lock.count == 0
+				   && ntdb->file->num_lockrecs == 0));
+		/* We should increase by 50% each time... */
+		ok(moves <= ilog64(j / SIZE_STEP)*2,
+		   "Moved %u times", moves);
+		ntdb_close(ntdb);
+	}
+
+	/* Using ntdb_append. */
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		size_t prev_len = 0;
+		ntdb = ntdb_open("run-append.ntdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(ntdb);
+		if (!ntdb)
+			continue;
+
+		moves = 0;
+		for (j = 0; j < MAX_SIZE; j += SIZE_STEP) {
+			data.dptr = buffer + prev_len;
+			data.dsize = j - prev_len;
+			ok1(ntdb_append(ntdb, key, data) == 0);
+			ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+			ok1(ntdb_fetch(ntdb, key, &data) == NTDB_SUCCESS);
+			ok1(data.dsize == j);
+			ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+			free(data.dptr);
+			prev_len = data.dsize;
+			newoff = ntdb_offset(ntdb, key);
+			if (newoff != oldoff)
+				moves++;
+			oldoff = newoff;
+		}
+		ok1(!ntdb->file || (ntdb->file->allrecord_lock.count == 0
+				   && ntdb->file->num_lockrecs == 0));
+		/* We should increase by 50% each time... */
+		ok(moves <= ilog64(j / SIZE_STEP)*2,
+		   "Moved %u times", moves);
+		ntdb_close(ntdb);
+	}
+
+	for (i = 0; i < sizeof(flags) / sizeof(flags[0]); i++) {
+		ntdb = ntdb_open("run-append.ntdb", flags[i],
+			       O_RDWR|O_CREAT|O_TRUNC, 0600, &tap_log_attr);
+		ok1(ntdb);
+		if (!ntdb)
+			continue;
+
+		/* Huge initial store. */
+		data.dptr = buffer;
+		data.dsize = MAX_SIZE;
+		ok1(ntdb_append(ntdb, key, data) == 0);
+		ok1(ntdb_check(ntdb, NULL, NULL) == 0);
+		ok1(ntdb_fetch(ntdb, key, &data) == NTDB_SUCCESS);
+		ok1(data.dsize == MAX_SIZE);
+		ok1(memcmp(data.dptr, buffer, data.dsize) == 0);
+		free(data.dptr);
+		ok1(!ntdb->file || (ntdb->file->allrecord_lock.count == 0
+				   && ntdb->file->num_lockrecs == 0));
+		ntdb_close(ntdb);
+	}
+
+	ok1(tap_log_messages == 0);
+	free(buffer);
+	return exit_status();
+}