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-rw-r--r--lib/tdb/tools/tdbtorture.c199
1 files changed, 142 insertions, 57 deletions
diff --git a/lib/tdb/tools/tdbtorture.c b/lib/tdb/tools/tdbtorture.c
index b0221a2503..5ee6991825 100644
--- a/lib/tdb/tools/tdbtorture.c
+++ b/lib/tdb/tools/tdbtorture.c
@@ -30,6 +30,10 @@ static struct tdb_context *db;
static int in_transaction;
static int error_count;
static int always_transaction = 0;
+static int hash_size = 2;
+static int loopnum;
+static int count_pipe;
+static struct tdb_logging_context log_ctx;
#ifdef PRINTF_ATTRIBUTE
static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...) PRINTF_ATTRIBUTE(3,4);
@@ -48,8 +52,9 @@ static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const c
va_end(ap);
fflush(stdout);
#if 0
- {
+ if (level != TDB_DEBUG_TRACE) {
char *ptr;
+ signal(SIGUSR1, SIG_IGN);
asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
system(ptr);
free(ptr);
@@ -211,24 +216,74 @@ static int traverse_fn(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
static void usage(void)
{
- printf("Usage: tdbtorture [-t] [-n NUM_PROCS] [-l NUM_LOOPS] [-s SEED] [-H HASH_SIZE]\n");
+ printf("Usage: tdbtorture [-t] [-k] [-n NUM_PROCS] [-l NUM_LOOPS] [-s SEED] [-H HASH_SIZE]\n");
exit(0);
}
- int main(int argc, char * const *argv)
+static void send_count_and_suicide(int sig)
+{
+ /* This ensures our successor can continue where we left off. */
+ write(count_pipe, &loopnum, sizeof(loopnum));
+ /* This gives a unique signature. */
+ kill(getpid(), SIGUSR2);
+}
+
+static int run_child(int i, int seed, unsigned num_loops, unsigned start)
+{
+ db = tdb_open_ex("torture.tdb", hash_size, TDB_DEFAULT,
+ O_RDWR | O_CREAT, 0600, &log_ctx, NULL);
+ if (!db) {
+ fatal("db open failed");
+ }
+
+ srand(seed + i);
+ srandom(seed + i);
+
+ /* Set global, then we're ready to handle being killed. */
+ loopnum = start;
+ signal(SIGUSR1, send_count_and_suicide);
+
+ for (;loopnum<num_loops && error_count == 0;loopnum++) {
+ addrec_db();
+ }
+
+ if (error_count == 0) {
+ tdb_traverse_read(db, NULL, NULL);
+ if (always_transaction) {
+ while (in_transaction) {
+ tdb_transaction_cancel(db);
+ in_transaction--;
+ }
+ if (tdb_transaction_start(db) != 0)
+ fatal("tdb_transaction_start failed");
+ }
+ tdb_traverse(db, traverse_fn, NULL);
+ tdb_traverse(db, traverse_fn, NULL);
+ if (always_transaction) {
+ if (tdb_transaction_commit(db) != 0)
+ fatal("tdb_transaction_commit failed");
+ }
+ }
+
+ tdb_close(db);
+
+ return (error_count < 100 ? error_count : 100);
+}
+
+int main(int argc, char * const *argv)
{
int i, seed = -1;
- int num_procs = 3;
int num_loops = 5000;
- int hash_size = 2;
- int c;
+ int num_procs = 3;
+ int c, pfds[2];
extern char *optarg;
pid_t *pids;
+ int kill_random = 0;
+ int *done;
- struct tdb_logging_context log_ctx;
log_ctx.log_fn = tdb_log;
- while ((c = getopt(argc, argv, "n:l:s:H:th")) != -1) {
+ while ((c = getopt(argc, argv, "n:l:s:H:thk")) != -1) {
switch (c) {
case 'n':
num_procs = strtol(optarg, NULL, 0);
@@ -245,6 +300,9 @@ static void usage(void)
case 't':
always_transaction = 1;
break;
+ case 'k':
+ kill_random = 1;
+ break;
default:
usage();
}
@@ -252,93 +310,120 @@ static void usage(void)
unlink("torture.tdb");
- pids = (pid_t *)calloc(sizeof(pid_t), num_procs);
- pids[0] = getpid();
-
- for (i=0;i<num_procs-1;i++) {
- if ((pids[i+1]=fork()) == 0) break;
- }
-
- db = tdb_open_ex("torture.tdb", hash_size, TDB_CLEAR_IF_FIRST,
- O_RDWR | O_CREAT, 0600, &log_ctx, NULL);
- if (!db) {
- fatal("db open failed");
- }
-
if (seed == -1) {
seed = (getpid() + time(NULL)) & 0x7FFFFFFF;
}
- if (i == 0) {
- printf("testing with %d processes, %d loops, %d hash_size, seed=%d%s\n",
- num_procs, num_loops, hash_size, seed, always_transaction ? " (all within transactions)" : "");
+ if (num_procs == 1 && !kill_random) {
+ /* Don't fork for this case, makes debugging easier. */
+ error_count = run_child(0, seed, num_loops, 0);
+ goto done;
}
- srand(seed + i);
- srandom(seed + i);
+ pids = (pid_t *)calloc(sizeof(pid_t), num_procs);
+ done = (int *)calloc(sizeof(int), num_procs);
- for (i=0;i<num_loops && error_count == 0;i++) {
- addrec_db();
+ if (pipe(pfds) != 0) {
+ perror("Creating pipe");
+ exit(1);
}
-
- if (error_count == 0) {
- tdb_traverse_read(db, NULL, NULL);
- if (always_transaction) {
- while (in_transaction) {
- tdb_transaction_cancel(db);
- in_transaction--;
+ count_pipe = pfds[1];
+
+ for (i=0;i<num_procs;i++) {
+ if ((pids[i]=fork()) == 0) {
+ close(pfds[0]);
+ if (i == 0) {
+ printf("testing with %d processes, %d loops, %d hash_size, seed=%d%s\n",
+ num_procs, num_loops, hash_size, seed, always_transaction ? " (all within transactions)" : "");
}
- if (tdb_transaction_start(db) != 0)
- fatal("tdb_transaction_start failed");
- }
- tdb_traverse(db, traverse_fn, NULL);
- tdb_traverse(db, traverse_fn, NULL);
- if (always_transaction) {
- if (tdb_transaction_commit(db) != 0)
- fatal("tdb_transaction_commit failed");
+ exit(run_child(i, seed, num_loops, 0));
}
}
- tdb_close(db);
-
- if (getpid() != pids[0]) {
- return error_count;
- }
-
- for (i=1;i<num_procs;i++) {
+ while (num_procs) {
int status, j;
pid_t pid;
+
if (error_count != 0) {
/* try and stop the test on any failure */
- for (j=1;j<num_procs;j++) {
+ for (j=0;j<num_procs;j++) {
if (pids[j] != 0) {
kill(pids[j], SIGTERM);
}
}
}
- pid = waitpid(-1, &status, 0);
+
+ pid = waitpid(-1, &status, kill_random ? WNOHANG : 0);
+ if (pid == 0) {
+ struct timespec ts;
+
+ /* Sleep for 1/10 second. */
+ ts.tv_sec = 0;
+ ts.tv_nsec = 100000000;
+ nanosleep(&ts, NULL);
+
+ /* Kill someone. */
+ kill(pids[random() % num_procs], SIGUSR1);
+ continue;
+ }
+
if (pid == -1) {
perror("failed to wait for child\n");
exit(1);
}
- for (j=1;j<num_procs;j++) {
+
+ for (j=0;j<num_procs;j++) {
if (pids[j] == pid) break;
}
if (j == num_procs) {
printf("unknown child %d exited!?\n", (int)pid);
exit(1);
}
- if (WEXITSTATUS(status) != 0) {
- printf("child %d exited with status %d\n",
- (int)pid, WEXITSTATUS(status));
+ if (WIFSIGNALED(status)) {
+ if (WTERMSIG(status) == SIGUSR2
+ || WTERMSIG(status) == SIGUSR1) {
+ /* SIGUSR2 means they wrote to pipe. */
+ if (WTERMSIG(status) == SIGUSR2) {
+ read(pfds[0], &done[j],
+ sizeof(done[j]));
+ }
+ pids[j] = fork();
+ if (pids[j] == 0)
+ exit(run_child(j, seed, num_loops,
+ done[j]));
+ printf("Restarting child %i for %u-%u\n",
+ j, done[j], num_loops);
+ continue;
+ }
+ printf("child %d exited with signal %d\n",
+ (int)pid, WTERMSIG(status));
error_count++;
+ } else {
+ if (WEXITSTATUS(status) != 0) {
+ printf("child %d exited with status %d\n",
+ (int)pid, WEXITSTATUS(status));
+ error_count++;
+ }
}
- pids[j] = 0;
+ memmove(&pids[j], &pids[j+1],
+ (num_procs - j - 1)*sizeof(pids[0]));
+ num_procs--;
}
free(pids);
+done:
if (error_count == 0) {
+ db = tdb_open_ex("torture.tdb", hash_size, TDB_DEFAULT,
+ O_RDWR, 0, &log_ctx, NULL);
+ if (!db) {
+ fatal("db open failed");
+ }
+ if (tdb_check(db, NULL, NULL) == -1) {
+ printf("db check failed");
+ exit(1);
+ }
+ tdb_close(db);
printf("OK\n");
}
generated by cgit (git 2.34.1) at 2024-11-20 01:28:41 +0000