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-rw-r--r--tools/tdbtortseq.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/tools/tdbtortseq.c b/tools/tdbtortseq.c
new file mode 100644
index 0000000..9423b46
--- /dev/null
+++ b/tools/tdbtortseq.c
@@ -0,0 +1,123 @@
+/*
+ * Unix SMB/CIFS implementation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "replace.h"
+#include "system/filesys.h"
+#include <tdb.h>
+#include <stdio.h>
+#include <errno.h>
+#include "system/wait.h"
+
+#define NPROCS 500
+#define NUMOPS 1000000
+
+int main(void)
+{
+ pid_t pids[NPROCS];
+ struct tdb_context *tdb = NULL;
+ int i;
+ uint32_t seqnum_before, seqnum_after;
+
+ tdb = tdb_open("seqnum_test.tdb",
+ 10000,
+ TDB_CLEAR_IF_FIRST|
+ TDB_SEQNUM|
+ TDB_INCOMPATIBLE_HASH|
+ TDB_MUTEX_LOCKING,
+ O_CREAT|O_RDWR,
+ 0644);
+ if (tdb == NULL) {
+ perror("tdb_open failed");
+ return 1;
+ }
+ seqnum_before = tdb_get_seqnum(tdb);
+
+ for (i=0; i<NPROCS; i++) {
+ pids[i] = fork();
+ if (pids[i] == -1) {
+ perror("fork failed");
+ return 1;
+ }
+ if (pids[i] == 0) {
+ pid_t mypid = getpid();
+ int ret;
+ int j;
+
+ ret = tdb_reopen(tdb);
+ if (ret != 0) {
+ perror("tdb_reopen failed");
+ return 1;
+ }
+
+ for (j=0; j<NUMOPS; j++) {
+ TDB_DATA key = {
+ .dptr = (uint8_t *)&mypid,
+ .dsize = sizeof(mypid),
+ };
+ TDB_DATA value = {
+ .dptr = (uint8_t *)&j,
+ .dsize = sizeof(j),
+ };
+ ret = tdb_store(tdb, key, value, 0);
+ if (ret == -1) {
+ perror("tdb_store failed");
+ return 1;
+ }
+ }
+
+ return 0;
+ }
+ }
+
+ for (i=0; i<NPROCS; i++) {
+ int wstatus;
+ pid_t ret = waitpid(pids[i], &wstatus, 0);
+
+ if (ret == -1) {
+ perror("waitpid failed");
+ return 1;
+ }
+
+ if (!WIFEXITED(wstatus)) {
+ fprintf(stderr,
+ "pid %d did not exit properly\n",
+ (int)pids[i]);
+ return 1;
+ }
+
+ if (WEXITSTATUS(wstatus) != 0) {
+ fprintf(stderr,
+ "pid %d returned %d\n",
+ (int)pids[i],
+ WEXITSTATUS(wstatus));
+ return 1;
+ }
+ }
+
+ seqnum_after = tdb_get_seqnum(tdb);
+
+ printf("seqnum_before=%"PRIu32", seqnum_after=%"PRIu32"\n",
+ seqnum_before,
+ seqnum_after);
+
+ if ((seqnum_after - seqnum_before) != (NPROCS*NUMOPS)) {
+ perror("incrementing seqnum failed");
+ return 1;
+ }
+
+ return 0;
+}