16 /* this tests tdb by doing lots of ops from several simultaneous
17 writers - that stresses the locking code. Build with TDB_DEBUG=1
22 #define REOPEN_PROB 30
26 #define LOCKSTORE_PROB 0
27 #define TRAVERSE_PROB 20
33 static TDB_CONTEXT *db;
35 static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
40 vfprintf(stdout, format, ap);
46 asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
53 static void fatal(char *why)
59 static char *randbuf(int len)
63 buf = (char *)malloc(len+1);
66 buf[i] = 'a' + (rand() % 26);
72 static int cull_traverse(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf,
75 if (random() % CULL_PROB == 0) {
81 static void addrec_db(void)
85 TDB_DATA key, data, lockkey;
87 klen = 1 + (rand() % KEYLEN);
88 dlen = 1 + (rand() % DATALEN);
89 slen = 1 + (rand() % LOCKLEN);
102 lockkey.dsize = slen+1;
105 if (random() % REOPEN_PROB == 0) {
112 if (random() % DELETE_PROB == 0) {
119 if (random() % STORE_PROB == 0) {
120 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
121 fatal("tdb_store failed");
128 if (random() % APPEND_PROB == 0) {
129 if (tdb_append(db, key, data) != 0) {
130 fatal("tdb_append failed");
137 if (random() % LOCKSTORE_PROB == 0) {
138 tdb_chainlock(db, lockkey);
139 data = tdb_fetch(db, key);
140 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
141 fatal("tdb_store failed");
143 if (data.dptr) free(data.dptr);
144 tdb_chainunlock(db, lockkey);
150 if (random() % TRAVERSE_PROB == 0) {
151 tdb_traverse(db, cull_traverse, NULL);
156 data = tdb_fetch(db, key);
157 if (data.dptr) free(data.dptr);
165 static int traverse_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf,
168 tdb_delete(tdb, key);
177 #define NLOOPS 200000
180 int main(int argc, char *argv[])
186 db = tdb_open("torture.tdb", 0, TDB_CLEAR_IF_FIRST,
187 O_RDWR | O_CREAT, 0600);
189 fatal("db open failed");
192 for (i=0;i<NPROC;i++) {
197 tdb_logging_function(db, tdb_log);
199 srand(seed + getpid());
200 srandom(seed + getpid() + time(NULL));
201 for (i=0;i<loops;i++) addrec_db();
203 tdb_traverse(db, NULL, NULL);
204 tdb_traverse(db, traverse_fn, NULL);
205 tdb_traverse(db, traverse_fn, NULL);
212 for (i=0;i<NPROC;i++) {
214 if (waitpid(pids[i], &status, 0) != pids[i]) {
215 printf("failed to wait for %d\n",
219 if (WEXITSTATUS(status) != 0) {
220 printf("child %d exited with status %d\n",
221 (int)pids[i], WEXITSTATUS(status));