--- /dev/null
+#include <ccan/tdb2/private.h>
+#include <unistd.h>
+#include "tdb1-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_lockcheck1
+#define ftruncate ftruncate_check
+
+#include "tdb2-source.h"
+#include <ccan/tap/tap.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <err.h>
+#include <setjmp.h>
+#include "tdb1-external-agent.h"
+#include "tdb1-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 tdb1_context *tdb = NULL;
+ TDB1_DATA key;
+ enum agent_return ret;
+ int needed_recovery = 0;
+
+ current = target = 0;
+reset:
+ unlink(TEST_DBNAME);
+ tdb = tdb1_open_ex(TEST_DBNAME, 1024, TDB1_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_locking1();
+ in_transaction = false;
+
+ ret = external_agent_operation1(agent, NEEDS_RECOVERY, "");
+ if (ret == SUCCESS)
+ needed_recovery++;
+ else if (ret != FAILED) {
+ diag("Step %u agent NEEDS_RECOVERY = %s", current,
+ agent_return_name1(ret));
+ return false;
+ }
+
+ ret = external_agent_operation1(agent, op, KEY_STRING);
+ if (ret != SUCCESS) {
+ diag("Step %u op %s failed = %s", current,
+ operation_name1(op),
+ agent_return_name1(ret));
+ return false;
+ }
+
+ ret = external_agent_operation1(agent, NEEDS_RECOVERY, "");
+ if (ret != FAILED) {
+ diag("Still needs recovery after step %u = %s",
+ current, agent_return_name1(ret));
+ return false;
+ }
+
+ ret = external_agent_operation1(agent, CHECK, "");
+ if (ret != SUCCESS) {
+ diag("Step %u check failed = %s", current,
+ agent_return_name1(ret));
+ return false;
+ }
+
+ ret = external_agent_operation1(agent, CLOSE, "");
+ if (ret != SUCCESS) {
+ diag("Step %u close failed = %s", current,
+ agent_return_name1(ret));
+ return false;
+ }
+
+ /* Suppress logging as this tries to use closed fd. */
+ suppress_logging = true;
+ suppress_lockcheck1 = true;
+ tdb1_close(tdb);
+ suppress_logging = false;
+ suppress_lockcheck1 = false;
+ target++;
+ current = 0;
+ goto reset;
+ }
+
+ /* Put key for agent to fetch. */
+ key.dsize = strlen(KEY_STRING);
+ key.dptr = (void *)KEY_STRING;
+ if (tdb1_store(tdb, key, key, TDB1_INSERT) != 0)
+ return false;
+
+ /* This is the key we insert in transaction. */
+ key.dsize--;
+
+ ret = external_agent_operation1(agent, OPEN, TEST_DBNAME);
+ if (ret != SUCCESS)
+ errx(1, "Agent failed to open: %s", agent_return_name1(ret));
+
+ ret = external_agent_operation1(agent, FETCH, KEY_STRING);
+ if (ret != SUCCESS)
+ errx(1, "Agent failed find key: %s", agent_return_name1(ret));
+
+ in_transaction = true;
+ if (tdb1_transaction_start(tdb) != 0)
+ return false;
+
+ if (tdb1_store(tdb, key, key, TDB1_INSERT) != 0)
+ return false;
+
+ if (tdb1_transaction_commit(tdb) != 0)
+ return false;
+
+ in_transaction = false;
+
+ /* We made it! */
+ diag("Completed %u runs", current);
+ tdb1_close(tdb);
+ ret = external_agent_operation1(agent, CLOSE, "");
+ if (ret != SUCCESS) {
+ diag("Step %u close failed = %s", current,
+ agent_return_name1(ret));
+ return false;
+ }
+
+ ok1(needed_recovery);
+ ok1(locking_errors1 == 0);
+ ok1(forget_locking1() == 0);
+ locking_errors1 = 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_callback1 = maybe_die;
+
+ agent = prepare_external_agent1();
+ if (!agent)
+ err(1, "preparing agent");
+
+ for (i = 0; i < sizeof(ops)/sizeof(ops[0]); i++) {
+ diag("Testing %s after death", operation_name1(ops[i]));
+ ok1(test_death(ops[i], agent));
+ }
+
+ return exit_status();
+}
projects / ccan / blobdiff