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-rw-r--r--lib/tdb/test/run-die-during-transaction.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/lib/tdb/test/run-die-during-transaction.c b/lib/tdb/test/run-die-during-transaction.c
new file mode 100644
index 0000000..c636d87
--- /dev/null
+++ b/lib/tdb/test/run-die-during-transaction.c
@@ -0,0 +1,232 @@
+#include "../common/tdb_private.h"
+#include "lock-tracking.h"
+static ssize_t pwrite_check(int fd, const void *buf, size_t count, off_t offset);
+static ssize_t write_check(int fd, const void *buf, size_t count);
+static int ftruncate_check(int fd, off_t length);
+
+#define pwrite pwrite_check
+#define write write_check
+#define fcntl fcntl_with_lockcheck
+#define ftruncate ftruncate_check
+
+#include "../common/io.c"
+#include "../common/tdb.c"
+#include "../common/lock.c"
+#include "../common/freelist.c"
+#include "../common/traverse.c"
+#include "../common/transaction.c"
+#include "../common/error.c"
+#include "../common/open.c"
+#include "../common/check.c"
+#include "../common/hash.c"
+#include "../common/mutex.c"
+#include "tap-interface.h"
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <setjmp.h>
+#include "external-agent.h"
+#include "logging.h"
+
+#undef write
+#undef pwrite
+#undef fcntl
+#undef ftruncate
+
+static bool in_transaction;
+static int target, current;
+static jmp_buf jmpbuf;
+#define TEST_DBNAME "run-die-during-transaction.tdb"
+#define KEY_STRING "helloworld"
+
+static void maybe_die(int fd)
+{
+ if (in_transaction && current++ == target) {
+ longjmp(jmpbuf, 1);
+ }
+}
+
+static ssize_t pwrite_check(int fd,
+ const void *buf, size_t count, off_t offset)
+{
+ ssize_t ret;
+
+ maybe_die(fd);
+
+ ret = pwrite(fd, buf, count, offset);
+ if (ret != count)
+ return ret;
+
+ maybe_die(fd);
+ return ret;
+}
+
+static ssize_t write_check(int fd, const void *buf, size_t count)
+{
+ ssize_t ret;
+
+ maybe_die(fd);
+
+ ret = write(fd, buf, count);
+ if (ret != count)
+ return ret;
+
+ maybe_die(fd);
+ return ret;
+}
+
+static int ftruncate_check(int fd, off_t length)
+{
+ int ret;
+
+ maybe_die(fd);
+
+ ret = ftruncate(fd, length);
+
+ maybe_die(fd);
+ return ret;
+}
+
+static bool test_death(enum operation op, struct agent *agent)
+{
+ struct tdb_context *tdb = NULL;
+ TDB_DATA key;
+ enum agent_return ret;
+ int needed_recovery = 0;
+
+ current = target = 0;
+reset:
+ unlink(TEST_DBNAME);
+ tdb = tdb_open_ex(TEST_DBNAME, 1024, TDB_NOMMAP,
+ O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
+
+ if (setjmp(jmpbuf) != 0) {
+ /* We're partway through. Simulate our death. */
+ close(tdb->fd);
+ forget_locking();
+ in_transaction = false;
+
+ ret = external_agent_operation(agent, NEEDS_RECOVERY, "");
+ if (ret == SUCCESS)
+ needed_recovery++;
+ else if (ret != FAILED) {
+ diag("Step %u agent NEEDS_RECOVERY = %s", current,
+ agent_return_name(ret));
+ return false;
+ }
+
+ ret = external_agent_operation(agent, op, KEY_STRING);
+ if (ret != SUCCESS) {
+ diag("Step %u op %s failed = %s", current,
+ operation_name(op),
+ agent_return_name(ret));
+ return false;
+ }
+
+ ret = external_agent_operation(agent, NEEDS_RECOVERY, "");
+ if (ret != FAILED) {
+ diag("Still needs recovery after step %u = %s",
+ current, agent_return_name(ret));
+ return false;
+ }
+
+ ret = external_agent_operation(agent, CHECK, "");
+ if (ret != SUCCESS) {
+ diag("Step %u check failed = %s", current,
+ agent_return_name(ret));
+ return false;
+ }
+
+ ret = external_agent_operation(agent, CLOSE, "");
+ if (ret != SUCCESS) {
+ diag("Step %u close failed = %s", current,
+ agent_return_name(ret));
+ return false;
+ }
+
+ /* Suppress logging as this tries to use closed fd. */
+ suppress_logging = true;
+ suppress_lockcheck = true;
+ tdb_close(tdb);
+ suppress_logging = false;
+ suppress_lockcheck = false;
+ target++;
+ current = 0;
+ goto reset;
+ }
+
+ /* Put key for agent to fetch. */
+ key.dsize = strlen(KEY_STRING);
+ key.dptr = discard_const_p(uint8_t, KEY_STRING);
+ if (tdb_store(tdb, key, key, TDB_INSERT) != 0)
+ return false;
+
+ /* This is the key we insert in transaction. */
+ key.dsize--;
+
+ ret = external_agent_operation(agent, OPEN, TEST_DBNAME);
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed to open: %s\n",
+ agent_return_name(ret));
+ exit(1);
+ }
+
+ ret = external_agent_operation(agent, FETCH, KEY_STRING);
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed find key: %s\n",
+ agent_return_name(ret));
+ exit(1);
+ }
+
+ in_transaction = true;
+ if (tdb_transaction_start(tdb) != 0)
+ return false;
+
+ if (tdb_store(tdb, key, key, TDB_INSERT) != 0)
+ return false;
+
+ if (tdb_transaction_commit(tdb) != 0)
+ return false;
+
+ in_transaction = false;
+
+ /* We made it! */
+ diag("Completed %u runs", current);
+ tdb_close(tdb);
+ ret = external_agent_operation(agent, CLOSE, "");
+ if (ret != SUCCESS) {
+ diag("Step %u close failed = %s", current,
+ agent_return_name(ret));
+ return false;
+ }
+
+#ifdef HAVE_INCOHERENT_MMAP
+ /* This means we always mmap, which makes this test a noop. */
+ ok1(1);
+#else
+ ok1(needed_recovery);
+#endif
+ ok1(locking_errors == 0);
+ ok1(forget_locking() == 0);
+ locking_errors = 0;
+ return true;
+}
+
+int main(int argc, char *argv[])
+{
+ enum operation ops[] = { FETCH, STORE, TRANSACTION_START };
+ struct agent *agent;
+ int i;
+
+ plan_tests(12);
+ unlock_callback = maybe_die;
+
+ agent = prepare_external_agent();
+
+ for (i = 0; i < sizeof(ops)/sizeof(ops[0]); i++) {
+ diag("Testing %s after death", operation_name(ops[i]));
+ ok1(test_death(ops[i], agent));
+ }
+
+ return exit_status();
+}