15 /* this tests tdb by doing lots of ops from several simultaneous
16 writers - that stresses the locking code. Build with TDB_DEBUG=1
21 #define REOPEN_PROB 30
24 #define LOCKSTORE_PROB 0
25 #define TRAVERSE_PROB 20
31 static TDB_CONTEXT *db;
33 static void tdb_log(TDB_CONTEXT *tdb, int level, const char *format, ...)
38 vfprintf(stdout, format, ap);
44 asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
51 static void fatal(char *why)
57 static char *randbuf(int len)
61 buf = (char *)malloc(len+1);
64 buf[i] = 'a' + (rand() % 26);
70 static int cull_traverse(TDB_CONTEXT *db, TDB_DATA key, TDB_DATA dbuf,
73 if (random() % CULL_PROB == 0) {
79 static void addrec_db(void)
83 TDB_DATA key, data, lockkey;
85 klen = 1 + (rand() % KEYLEN);
86 dlen = 1 + (rand() % DATALEN);
87 slen = 1 + (rand() % LOCKLEN);
100 lockkey.dsize = slen+1;
103 if (random() % REOPEN_PROB == 0) {
110 if (random() % DELETE_PROB == 0) {
117 if (random() % STORE_PROB == 0) {
118 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
119 fatal("tdb_store failed");
126 if (random() % LOCKSTORE_PROB == 0) {
127 tdb_chainlock(db, lockkey);
128 data = tdb_fetch(db, key);
129 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
130 fatal("tdb_store failed");
132 if (data.dptr) free(data.dptr);
133 tdb_chainunlock(db, lockkey);
139 if (random() % TRAVERSE_PROB == 0) {
140 tdb_traverse(db, cull_traverse, NULL);
145 data = tdb_fetch(db, key);
146 if (data.dptr) free(data.dptr);
154 static int traverse_fn(TDB_CONTEXT *db, TDB_DATA key, TDB_DATA dbuf,
166 #define NLOOPS 200000
169 int main(int argc, char *argv[])
177 for (i=0;i<NPROC-1;i++) {
178 if ((pids[i+1]=fork()) == 0) break;
181 db = tdb_open("torture.tdb", 2, TDB_CLEAR_IF_FIRST,
182 O_RDWR | O_CREAT, 0600);
184 fatal("db open failed");
186 tdb_logging_function(db, tdb_log);
188 srand(seed + getpid());
189 srandom(seed + getpid() + time(NULL));
190 for (i=0;i<loops;i++) addrec_db();
192 tdb_traverse(db, NULL, NULL);
193 tdb_traverse(db, traverse_fn, NULL);
194 tdb_traverse(db, traverse_fn, NULL);
198 if (getpid() == pids[0]) {
199 for (i=0;i<NPROC-1;i++) {
201 if (waitpid(pids[i+1], &status, 0) != pids[i+1]) {
202 printf("failed to wait for %d\n",
206 if (WEXITSTATUS(status) != 0) {
207 printf("child %d exited with status %d\n",
208 (int)pids[i+1], WEXITSTATUS(status));