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-rw-r--r--tdb/tdbtorture.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/tdb/tdbtorture.c b/tdb/tdbtorture.c
new file mode 100644
index 0000000000..e27bbff990
--- /dev/null
+++ b/tdb/tdbtorture.c
@@ -0,0 +1,226 @@
+#include <stdlib.h>
+#include <time.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include "tdb.h"
+
+/* this tests tdb by doing lots of ops from several simultaneous
+ writers - that stresses the locking code. Build with TDB_DEBUG=1
+ for best effect */
+
+
+
+#define REOPEN_PROB 30
+#define DELETE_PROB 8
+#define STORE_PROB 4
+#define APPEND_PROB 6
+#define LOCKSTORE_PROB 0
+#define TRAVERSE_PROB 20
+#define CULL_PROB 100
+#define KEYLEN 3
+#define DATALEN 100
+#define LOCKLEN 20
+
+static TDB_CONTEXT *db;
+
+static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
+{
+ va_list ap;
+
+ 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(char *why)
+{
+ perror(why);
+ exit(1);
+}
+
+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(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf,
+ void *state)
+{
+ if (random() % CULL_PROB == 0) {
+ tdb_delete(tdb, key);
+ }
+ return 0;
+}
+
+static void addrec_db(void)
+{
+ int klen, dlen, slen;
+ char *k, *d, *s;
+ TDB_DATA key, data, lockkey;
+
+ klen = 1 + (rand() % KEYLEN);
+ dlen = 1 + (rand() % DATALEN);
+ slen = 1 + (rand() % LOCKLEN);
+
+ k = randbuf(klen);
+ d = randbuf(dlen);
+ s = randbuf(slen);
+
+ key.dptr = k;
+ key.dsize = klen+1;
+
+ data.dptr = d;
+ data.dsize = dlen+1;
+
+ lockkey.dptr = s;
+ lockkey.dsize = slen+1;
+
+#if REOPEN_PROB
+ if (random() % REOPEN_PROB == 0) {
+ tdb_reopen_all();
+ 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, lockkey);
+ 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, lockkey);
+ goto next;
+ }
+#endif
+
+#if TRAVERSE_PROB
+ if (random() % TRAVERSE_PROB == 0) {
+ tdb_traverse(db, cull_traverse, NULL);
+ goto next;
+ }
+#endif
+
+ data = tdb_fetch(db, key);
+ if (data.dptr) free(data.dptr);
+
+next:
+ free(k);
+ free(d);
+ free(s);
+}
+
+static int traverse_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf,
+ void *state)
+{
+ tdb_delete(tdb, key);
+ return 0;
+}
+
+#ifndef NPROC
+#define NPROC 6
+#endif
+
+#ifndef NLOOPS
+#define NLOOPS 200000
+#endif
+
+int main(int argc, char *argv[])
+{
+ int i, seed=0;
+ int loops = NLOOPS;
+ pid_t pids[NPROC];
+
+ pids[0] = getpid();
+
+ for (i=0;i<NPROC-1;i++) {
+ if ((pids[i+1]=fork()) == 0) break;
+ }
+
+ db = tdb_open("torture.tdb", 2, TDB_CLEAR_IF_FIRST,
+ O_RDWR | O_CREAT, 0600);
+ if (!db) {
+ fatal("db open failed");
+ }
+ tdb_logging_function(db, tdb_log);
+
+ srand(seed + getpid());
+ srandom(seed + getpid() + time(NULL));
+ for (i=0;i<loops;i++) addrec_db();
+
+ tdb_traverse(db, NULL, NULL);
+ tdb_traverse(db, traverse_fn, NULL);
+ tdb_traverse(db, traverse_fn, NULL);
+
+ tdb_close(db);
+
+ if (getpid() == pids[0]) {
+ for (i=0;i<NPROC-1;i++) {
+ int status;
+ if (waitpid(pids[i+1], &status, 0) != pids[i+1]) {
+ printf("failed to wait for %d\n",
+ (int)pids[i+1]);
+ exit(1);
+ }
+ if (WEXITSTATUS(status) != 0) {
+ printf("child %d exited with status %d\n",
+ (int)pids[i+1], WEXITSTATUS(status));
+ exit(1);
+ }
+ }
+ printf("OK\n");
+ }
+
+ return 0;
+}