X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Ftdb2%2Ftest%2Frun-tdb1-no-lock-during-traverse.c;fp=ccan%2Ftdb2%2Ftest%2Frun-tdb1-no-lock-during-traverse.c;h=570562991d4ce65b7d635d1653697ac3e893070d;hb=fab544c24c1ad6523f95893abcaec4e6cce6c2b4;hp=0000000000000000000000000000000000000000;hpb=5d6194b434f3664d1025df12ef06c6a25f693bc8;p=ccan

diff --git a/ccan/tdb2/test/run-tdb1-no-lock-during-traverse.c b/ccan/tdb2/test/run-tdb1-no-lock-during-traverse.c
new file mode 100644
index 00000000..57056299
--- /dev/null
+++ b/ccan/tdb2/test/run-tdb1-no-lock-during-traverse.c
@@ -0,0 +1,106 @@
+#include <ccan/tdb2/private.h>
+#include <unistd.h>
+#include "tdb1-lock-tracking.h"
+
+#define fcntl fcntl_with_lockcheck1
+
+#include "tdb2-source.h"
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <err.h>
+#include "tdb1-logging.h"
+
+#undef fcntl
+
+#define NUM_ENTRIES 10
+
+static bool prepare_entries(struct tdb1_context *tdb)
+{
+	unsigned int i;
+	TDB1_DATA key, data;
+
+	for (i = 0; i < NUM_ENTRIES; i++) {
+		key.dsize = sizeof(i);
+		key.dptr = (void *)&i;
+		data.dsize = strlen("world");
+		data.dptr = (void *)"world";
+
+		if (tdb1_store(tdb, key, data, 0) != 0)
+			return false;
+	}
+	return true;
+}
+
+static void delete_entries(struct tdb1_context *tdb)
+{
+	unsigned int i;
+	TDB1_DATA key;
+
+	for (i = 0; i < NUM_ENTRIES; i++) {
+		key.dsize = sizeof(i);
+		key.dptr = (void *)&i;
+
+		ok1(tdb1_delete(tdb, key) == 0);
+	}
+}
+
+/* We don't know how many times this will run. */
+static int delete_other(struct tdb1_context *tdb, TDB1_DATA key, TDB1_DATA data,
+			void *private_data)
+{
+	unsigned int i;
+	memcpy(&i, key.dptr, 4);
+	i = (i + 1) % NUM_ENTRIES;
+	key.dptr = (void *)&i;
+	if (tdb1_delete(tdb, key) != 0)
+		(*(int *)private_data)++;
+	return 0;
+}
+
+static int delete_self(struct tdb1_context *tdb, TDB1_DATA key, TDB1_DATA data,
+			void *private_data)
+{
+	ok1(tdb1_delete(tdb, key) == 0);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct tdb1_context *tdb;
+	int errors = 0;
+
+	plan_tests(41);
+	tdb = tdb1_open_ex("run-no-lock-during-traverse.tdb",
+			  1024, TDB1_CLEAR_IF_FIRST, O_CREAT|O_TRUNC|O_RDWR,
+			  0600, &taplogctx, NULL);
+
+	ok1(tdb);
+	ok1(prepare_entries(tdb));
+	ok1(locking_errors1 == 0);
+	ok1(tdb1_lockall(tdb) == 0);
+	ok1(locking_errors1 == 0);
+	tdb1_traverse(tdb, delete_other, &errors);
+	ok1(errors == 0);
+	ok1(locking_errors1 == 0);
+	ok1(tdb1_unlockall(tdb) == 0);
+
+	ok1(prepare_entries(tdb));
+	ok1(locking_errors1 == 0);
+	ok1(tdb1_lockall(tdb) == 0);
+	ok1(locking_errors1 == 0);
+	tdb1_traverse(tdb, delete_self, NULL);
+	ok1(locking_errors1 == 0);
+	ok1(tdb1_unlockall(tdb) == 0);
+
+	ok1(prepare_entries(tdb));
+	ok1(locking_errors1 == 0);
+	ok1(tdb1_lockall(tdb) == 0);
+	ok1(locking_errors1 == 0);
+	delete_entries(tdb);
+	ok1(locking_errors1 == 0);
+	ok1(tdb1_unlockall(tdb) == 0);
+
+	ok1(tdb1_close(tdb) == 0);
+
+	return exit_status();
+}