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-rw-r--r--tdb/tools/tdbtorture.c318
1 files changed, 318 insertions, 0 deletions
diff --git a/tdb/tools/tdbtorture.c b/tdb/tools/tdbtorture.c
new file mode 100644
index 00000000..9265cf07
--- /dev/null
+++ b/tdb/tools/tdbtorture.c
@@ -0,0 +1,318 @@
+/* this tests tdb by doing lots of ops from several simultaneous
+ writers - that stresses the locking code.
+*/
+
+#include "replace.h"
+#include "system/time.h"
+#include "system/wait.h"
+#include "system/filesys.h"
+#include "tdb.h"
+
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+
+
+#define REOPEN_PROB 30
+#define DELETE_PROB 8
+#define STORE_PROB 4
+#define APPEND_PROB 6
+#define TRANSACTION_PROB 10
+#define LOCKSTORE_PROB 5
+#define TRAVERSE_PROB 20
+#define TRAVERSE_READ_PROB 20
+#define CULL_PROB 100
+#define KEYLEN 3
+#define DATALEN 100
+
+static struct tdb_context *db;
+static int in_transaction;
+static int error_count;
+
+#ifdef PRINTF_ATTRIBUTE
+static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...) PRINTF_ATTRIBUTE(3,4);
+#endif
+static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...)
+{
+ va_list ap;
+
+ error_count++;
+
+ va_start(ap, format);
+ vfprintf(stdout, format, ap);
+ va_end(ap);
+ fflush(stdout);
+#if 0
+ {
+ char *ptr;
+ asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
+ system(ptr);
+ free(ptr);
+ }
+#endif
+}
+
+static void fatal(const char *why)
+{
+ perror(why);
+ error_count++;
+}
+
+static char *randbuf(int len)
+{
+ char *buf;
+ int i;
+ buf = (char *)malloc(len+1);
+
+ for (i=0;i<len;i++) {
+ buf[i] = 'a' + (rand() % 26);
+ }
+ buf[i] = 0;
+ return buf;
+}
+
+static int cull_traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
+ void *state)
+{
+#if CULL_PROB
+ if (random() % CULL_PROB == 0) {
+ tdb_delete(tdb, key);
+ }
+#endif
+ return 0;
+}
+
+static void addrec_db(void)
+{
+ int klen, dlen;
+ char *k, *d;
+ TDB_DATA key, data;
+
+ klen = 1 + (rand() % KEYLEN);
+ dlen = 1 + (rand() % DATALEN);
+
+ k = randbuf(klen);
+ d = randbuf(dlen);
+
+ key.dptr = (unsigned char *)k;
+ key.dsize = klen+1;
+
+ data.dptr = (unsigned char *)d;
+ data.dsize = dlen+1;
+
+#if TRANSACTION_PROB
+ if (in_transaction == 0 && random() % TRANSACTION_PROB == 0) {
+ if (tdb_transaction_start(db) != 0) {
+ fatal("tdb_transaction_start failed");
+ }
+ in_transaction++;
+ goto next;
+ }
+ if (in_transaction && random() % TRANSACTION_PROB == 0) {
+ if (tdb_transaction_commit(db) != 0) {
+ fatal("tdb_transaction_commit failed");
+ }
+ in_transaction--;
+ goto next;
+ }
+ if (in_transaction && random() % TRANSACTION_PROB == 0) {
+ if (tdb_transaction_cancel(db) != 0) {
+ fatal("tdb_transaction_cancel failed");
+ }
+ in_transaction--;
+ goto next;
+ }
+#endif
+
+#if REOPEN_PROB
+ if (in_transaction == 0 && random() % REOPEN_PROB == 0) {
+ tdb_reopen_all(0);
+ goto next;
+ }
+#endif
+
+#if DELETE_PROB
+ if (random() % DELETE_PROB == 0) {
+ tdb_delete(db, key);
+ goto next;
+ }
+#endif
+
+#if STORE_PROB
+ if (random() % STORE_PROB == 0) {
+ if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
+ fatal("tdb_store failed");
+ }
+ goto next;
+ }
+#endif
+
+#if APPEND_PROB
+ if (random() % APPEND_PROB == 0) {
+ if (tdb_append(db, key, data) != 0) {
+ fatal("tdb_append failed");
+ }
+ goto next;
+ }
+#endif
+
+#if LOCKSTORE_PROB
+ if (random() % LOCKSTORE_PROB == 0) {
+ tdb_chainlock(db, key);
+ data = tdb_fetch(db, key);
+ if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
+ fatal("tdb_store failed");
+ }
+ if (data.dptr) free(data.dptr);
+ tdb_chainunlock(db, key);
+ goto next;
+ }
+#endif
+
+#if TRAVERSE_PROB
+ if (random() % TRAVERSE_PROB == 0) {
+ tdb_traverse(db, cull_traverse, NULL);
+ goto next;
+ }
+#endif
+
+#if TRAVERSE_READ_PROB
+ if (random() % TRAVERSE_READ_PROB == 0) {
+ tdb_traverse_read(db, NULL, NULL);
+ goto next;
+ }
+#endif
+
+ data = tdb_fetch(db, key);
+ if (data.dptr) free(data.dptr);
+
+next:
+ free(k);
+ free(d);
+}
+
+static int traverse_fn(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
+ void *state)
+{
+ tdb_delete(tdb, key);
+ return 0;
+}
+
+static void usage(void)
+{
+ printf("Usage: tdbtorture [-n NUM_PROCS] [-l NUM_LOOPS] [-s SEED] [-H HASH_SIZE]\n");
+ exit(0);
+}
+
+ 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;
+ extern char *optarg;
+ pid_t *pids;
+
+ struct tdb_logging_context log_ctx;
+ log_ctx.log_fn = tdb_log;
+
+ while ((c = getopt(argc, argv, "n:l:s:H:h")) != -1) {
+ switch (c) {
+ case 'n':
+ num_procs = strtol(optarg, NULL, 0);
+ break;
+ case 'l':
+ num_loops = strtol(optarg, NULL, 0);
+ break;
+ case 'H':
+ hash_size = strtol(optarg, NULL, 0);
+ break;
+ case 's':
+ seed = strtol(optarg, NULL, 0);
+ break;
+ default:
+ usage();
+ }
+ }
+
+ 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\n",
+ num_procs, num_loops, hash_size, seed);
+ }
+
+ srand(seed + i);
+ srandom(seed + i);
+
+ for (i=0;i<num_loops && error_count == 0;i++) {
+ addrec_db();
+ }
+
+ if (error_count == 0) {
+ tdb_traverse_read(db, NULL, NULL);
+ tdb_traverse(db, traverse_fn, NULL);
+ tdb_traverse(db, traverse_fn, NULL);
+ }
+
+ tdb_close(db);
+
+ if (getpid() != pids[0]) {
+ return error_count;
+ }
+
+ for (i=1;i<num_procs;i++) {
+ 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++) {
+ if (pids[j] != 0) {
+ kill(pids[j], SIGTERM);
+ }
+ }
+ }
+ pid = waitpid(-1, &status, 0);
+ if (pid == -1) {
+ perror("failed to wait for child\n");
+ exit(1);
+ }
+ for (j=1;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));
+ error_count++;
+ }
+ pids[j] = 0;
+ }
+
+ if (error_count == 0) {
+ printf("OK\n");
+ }
+
+ return error_count;
+}