--- /dev/null
+#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 "external-agent.h"
+#include "logging.h"
+
+#undef write
+#undef pwrite
+#undef fcntl
+#undef ftruncate
+
+static int target, current;
+#define TEST_DBNAME "run-mutex-die.tdb"
+#define KEY_STRING "helloworld"
+
+static void maybe_die(int fd)
+{
+ if (target == 0) {
+ return;
+ }
+ current += 1;
+ if (current == target) {
+ _exit(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 enum agent_return flakey_ops(struct agent *a)
+{
+ enum agent_return ret;
+
+ /*
+ * Run in the external agent child
+ */
+
+ ret = external_agent_operation(a, OPEN_WITH_CLEAR_IF_FIRST, TEST_DBNAME);
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed to open: %s\n",
+ agent_return_name(ret));
+ return ret;
+ }
+ ret = external_agent_operation(a, UNMAP, "");
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed to unmap: %s\n",
+ agent_return_name(ret));
+ return ret;
+ }
+ ret = external_agent_operation(a, STORE, "xyz");
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed to store: %s\n",
+ agent_return_name(ret));
+ return ret;
+ }
+ ret = external_agent_operation(a, STORE, KEY_STRING);
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed store: %s\n",
+ agent_return_name(ret));
+ return ret;
+ }
+ ret = external_agent_operation(a, FETCH, KEY_STRING);
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed find key: %s\n",
+ agent_return_name(ret));
+ return ret;
+ }
+ ret = external_agent_operation(a, PING, "");
+ if (ret != SUCCESS) {
+ fprintf(stderr, "Agent failed ping: %s\n",
+ agent_return_name(ret));
+ return ret;
+ }
+ return ret;
+}
+
+static bool prep_db(void) {
+ struct tdb_context *tdb;
+ TDB_DATA key;
+ TDB_DATA data;
+
+ key.dptr = discard_const_p(uint8_t, KEY_STRING);
+ key.dsize = strlen((char *)key.dptr);
+ data.dptr = discard_const_p(uint8_t, "foo");
+ data.dsize = strlen((char *)data.dptr);
+
+ unlink(TEST_DBNAME);
+
+ tdb = tdb_open_ex(
+ TEST_DBNAME, 2,
+ TDB_INCOMPATIBLE_HASH|TDB_MUTEX_LOCKING|TDB_CLEAR_IF_FIRST,
+ O_CREAT|O_TRUNC|O_RDWR, 0600, &taplogctx, NULL);
+ if (tdb == NULL) {
+ return false;
+ }
+
+ if (tdb_store(tdb, key, data, TDB_INSERT) != 0) {
+ return false;
+ }
+
+ tdb_close(tdb);
+ tdb = NULL;
+
+ forget_locking();
+
+ return true;
+}
+
+static bool test_db(void) {
+ struct tdb_context *tdb;
+ int ret;
+
+ tdb = tdb_open_ex(
+ TEST_DBNAME, 1024, TDB_INCOMPATIBLE_HASH,
+ O_RDWR, 0600, &taplogctx, NULL);
+
+ if (tdb == NULL) {
+ perror("tdb_open_ex failed");
+ return false;
+ }
+
+ ret = tdb_traverse(tdb, NULL, NULL);
+ if (ret == -1) {
+ perror("traverse failed");
+ goto fail;
+ }
+
+ tdb_close(tdb);
+
+ forget_locking();
+
+ return true;
+
+fail:
+ tdb_close(tdb);
+ return false;
+}
+
+static bool test_one(void)
+{
+ enum agent_return ret;
+
+ ret = AGENT_DIED;
+ target = 19;
+
+ while (ret != SUCCESS) {
+ struct agent *agent;
+
+ {
+ int child_target = target;
+ bool pret;
+ target = 0;
+ pret = prep_db();
+ ok1(pret);
+ target = child_target;
+ }
+
+ agent = prepare_external_agent();
+
+ ret = flakey_ops(agent);
+
+ diag("Agent (target=%d) returns %s",
+ target, agent_return_name(ret));
+
+ if (ret == SUCCESS) {
+ ok((target > 19), "At least one AGENT_DIED expected");
+ } else {
+ ok(ret == AGENT_DIED, "AGENT_DIED expected");
+ }
+
+ shutdown_agent(agent);
+
+ {
+ int child_target = target;
+ bool tret;
+ target = 0;
+ tret = test_db();
+ ok1(tret);
+ target = child_target;
+ }
+
+ target += 1;
+ }
+
+ return true;
+}
+
+int main(int argc, char *argv[])
+{
+ bool ret;
+ bool runtime_support;
+
+ runtime_support = tdb_runtime_check_for_robust_mutexes();
+
+ if (!runtime_support) {
+ skip(1, "No robust mutex support");
+ return exit_status();
+ }
+
+ plan_tests(12);
+ unlock_callback = maybe_die;
+
+ ret = test_one();
+ ok1(ret);
+
+ diag("done");
+ return exit_status();
+}
git.samba.org / samba.git / blobdiff