14 /* this tests tdb by doing lots of ops from several simultaneous
15 writers - that stresses the locking code. Build with TDB_DEBUG=1
20 #define REOPEN_PROB 30
23 #define LOCKSTORE_PROB 0
24 #define TRAVERSE_PROB 20
30 static TDB_CONTEXT *db;
32 static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
37 vfprintf(stdout, format, ap);
43 asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
50 static void fatal(char *why)
56 static char *randbuf(int len)
60 buf = (char *)malloc(len+1);
63 buf[i] = 'a' + (rand() % 26);
69 static int cull_traverse(TDB_CONTEXT *db, TDB_DATA key, TDB_DATA dbuf,
72 if (random() % CULL_PROB == 0) {
78 static void addrec_db(void)
82 TDB_DATA key, data, lockkey;
84 klen = 1 + (rand() % KEYLEN);
85 dlen = 1 + (rand() % DATALEN);
86 slen = 1 + (rand() % LOCKLEN);
99 lockkey.dsize = slen+1;
102 if (random() % REOPEN_PROB == 0) {
109 if (random() % DELETE_PROB == 0) {
116 if (random() % STORE_PROB == 0) {
117 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
118 fatal("tdb_store failed");
125 if (random() % LOCKSTORE_PROB == 0) {
126 tdb_chainlock(db, lockkey);
127 data = tdb_fetch(db, key);
128 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
129 fatal("tdb_store failed");
131 if (data.dptr) free(data.dptr);
132 tdb_chainunlock(db, lockkey);
138 if (random() % TRAVERSE_PROB == 0) {
139 tdb_traverse(db, cull_traverse, NULL);
144 data = tdb_fetch(db, key);
145 if (data.dptr) free(data.dptr);
153 static int traverse_fn(TDB_CONTEXT *db, TDB_DATA key, TDB_DATA dbuf,
165 #define NLOOPS 200000
168 int main(int argc, char *argv[])
176 for (i=0;i<NPROC-1;i++) {
177 if ((pids[i+1]=fork()) == 0) break;
180 db = tdb_open("torture.tdb", 2, TDB_CLEAR_IF_FIRST,
181 O_RDWR | O_CREAT, 0600);
183 fatal("db open failed");
185 tdb_logging_function(db, tdb_log);
187 srand(seed + getpid());
188 srandom(seed + getpid() + time(NULL));
189 for (i=0;i<loops;i++) addrec_db();
191 tdb_traverse(db, NULL, NULL);
192 tdb_traverse(db, traverse_fn, NULL);
193 tdb_traverse(db, traverse_fn, NULL);
197 if (getpid() == pids[0]) {
198 for (i=0;i<NPROC-1;i++) {
200 if (waitpid(pids[i+1], &status, 0) != pids[i+1]) {
201 printf("failed to wait for %d\n",
205 if (WEXITSTATUS(status) != 0) {
206 printf("child %d exited with status %d\n",
207 (int)pids[i+1], WEXITSTATUS(status));