--- /dev/null
+#include "../private.h"
+#include <unistd.h>
+#include "lock-tracking.h"
+#include "tap-interface.h"
+#include <stdlib.h>
+#include <assert.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
+
+/* There's a malloc inside transaction_setup_recovery, and valgrind complains
+ * when we longjmp and leak it. */
+#define MAX_ALLOCATIONS 10
+static void *allocated[MAX_ALLOCATIONS];
+static unsigned max_alloc = 0;
+
+static void *malloc_noleak(size_t len)
+{
+ unsigned int i;
+
+ for (i = 0; i < MAX_ALLOCATIONS; i++)
+ if (!allocated[i]) {
+ allocated[i] = malloc(len);
+ if (i > max_alloc) {
+ max_alloc = i;
+ diag("max_alloc: %i", max_alloc);
+ }
+ return allocated[i];
+ }
+ diag("Too many allocations!");
+ abort();
+}
+
+static void *realloc_noleak(void *p, size_t size)
+{
+ unsigned int i;
+
+ for (i = 0; i < MAX_ALLOCATIONS; i++) {
+ if (allocated[i] == p) {
+ if (i > max_alloc) {
+ max_alloc = i;
+ diag("max_alloc: %i", max_alloc);
+ }
+ return allocated[i] = realloc(p, size);
+ }
+ }
+ diag("Untracked realloc!");
+ abort();
+}
+
+static void free_noleak(void *p)
+{
+ unsigned int i;
+
+ /* We don't catch asprintf, so don't complain if we miss one. */
+ for (i = 0; i < MAX_ALLOCATIONS; i++) {
+ if (allocated[i] == p) {
+ allocated[i] = NULL;
+ break;
+ }
+ }
+ free(p);
+}
+
+static void free_all(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < MAX_ALLOCATIONS; i++) {
+ free(allocated[i]);
+ allocated[i] = NULL;
+ }
+}
+
+#define malloc malloc_noleak
+#define free(x) free_noleak(x)
+#define realloc realloc_noleak
+
+#include "ntdb-source.h"
+
+#undef malloc
+#undef free
+#undef realloc
+#undef write
+#undef pwrite
+#undef fcntl
+#undef ftruncate
+
+#include <stdbool.h>
+#include <stdarg.h>
+#include <ccan/err/err.h>
+#include <setjmp.h>
+#include "external-agent.h"
+#include "logging.h"
+#include "helprun-external-agent.h"
+
+static bool in_transaction;
+static int target, current;
+static jmp_buf jmpbuf;
+#define TEST_DBNAME "run-57-die-during-transaction.ntdb"
+#define KEY_STRING "helloworld"
+#define DATA_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,
+ bool pre_create_recovery)
+{
+ struct ntdb_context *ntdb = NULL;
+ NTDB_DATA key, data;
+ enum agent_return ret;
+ int needed_recovery = 0;
+
+ current = target = 0;
+ /* Big long data to force a change. */
+ data = ntdb_mkdata(DATA_STRING, strlen(DATA_STRING));
+
+reset:
+ unlink(TEST_DBNAME);
+ ntdb = ntdb_open(TEST_DBNAME, NTDB_NOMMAP|MAYBE_NOSYNC,
+ O_CREAT|O_TRUNC|O_RDWR, 0600, &tap_log_attr);
+ if (!ntdb) {
+ diag("Failed opening NTDB: %s", strerror(errno));
+ return false;
+ }
+
+ if (setjmp(jmpbuf) != 0) {
+ /* We're partway through. Simulate our death. */
+ close(ntdb->file->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;
+ }
+
+ /* Could be key, or data. */
+ ret = external_agent_operation(agent, op,
+ KEY_STRING "=" KEY_STRING);
+ if (ret != SUCCESS) {
+ ret = external_agent_operation(agent, op,
+ KEY_STRING
+ "=" DATA_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;
+ ntdb_close(ntdb);
+ suppress_logging = false;
+ suppress_lockcheck = false;
+ target++;
+ current = 0;
+ free_all();
+ goto reset;
+ }
+
+ /* Put key for agent to fetch. */
+ key = ntdb_mkdata(KEY_STRING, strlen(KEY_STRING));
+
+ if (pre_create_recovery) {
+ /* Using a transaction now means we allocate the recovery
+ * area immediately. That makes the later transaction smaller
+ * and thus tickles a bug we had. */
+ if (ntdb_transaction_start(ntdb) != 0)
+ return false;
+ }
+ if (ntdb_store(ntdb, key, key, NTDB_INSERT) != 0)
+ return false;
+ if (pre_create_recovery) {
+ if (ntdb_transaction_commit(ntdb) != 0)
+ return false;
+ }
+
+ /* This is the key we insert in transaction. */
+ key.dsize--;
+
+ ret = external_agent_operation(agent, OPEN, TEST_DBNAME);
+ if (ret != SUCCESS)
+ errx(1, "Agent failed to open: %s", agent_return_name(ret));
+
+ ret = external_agent_operation(agent, FETCH, KEY_STRING "=" KEY_STRING);
+ if (ret != SUCCESS)
+ errx(1, "Agent failed find key: %s", agent_return_name(ret));
+
+ in_transaction = true;
+ if (ntdb_transaction_start(ntdb) != 0)
+ return false;
+
+ if (ntdb_store(ntdb, key, data, NTDB_INSERT) != 0)
+ return false;
+
+ if (ntdb_transaction_commit(ntdb) != 0)
+ return false;
+
+ in_transaction = false;
+
+ /* We made it! */
+ diag("Completed %u runs", current);
+ ntdb_close(ntdb);
+ ret = external_agent_operation(agent, CLOSE, "");
+ if (ret != SUCCESS) {
+ diag("Step %u close failed = %s", current,
+ agent_return_name(ret));
+ return false;
+ }
+
+ ok1(needed_recovery);
+ 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, j;
+
+ plan_tests(24);
+ unlock_callback = maybe_die;
+
+ external_agent_free = free_noleak;
+ agent = prepare_external_agent();
+ if (!agent)
+ err(1, "preparing agent");
+
+ for (j = 0; j < 2; j++) {
+ for (i = 0; i < sizeof(ops)/sizeof(ops[0]); i++) {
+ diag("Testing %s after death (%s recovery area)",
+ operation_name(ops[i]), j ? "with" : "without");
+ ok1(test_death(ops[i], agent, j));
+ }
+ }
+
+ free_external_agent(agent);
+ return exit_status();
+}
projects / ccan / blobdiff