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-rw-r--r--lib/tdb2/test/run-15-append.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/lib/tdb2/test/run-15-append.c b/lib/tdb2/test/run-15-append.c
new file mode 100644
index 00000000000..d2f9ec65989
--- /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();
+}