1 /* this tests tdb by doing lots of ops from several simultaneous
2 writers - that stresses the locking code.
6 #include "system/time.h"
7 #include "system/wait.h"
8 #include "system/filesys.h"
16 #define REOPEN_PROB 30
20 #define TRANSACTION_PROB 10
21 #define LOCKSTORE_PROB 5
22 #define TRAVERSE_PROB 20
23 #define TRAVERSE_READ_PROB 20
28 static struct tdb_context *db;
29 static int in_transaction;
30 static int error_count;
32 #ifdef PRINTF_ATTRIBUTE
33 static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...) PRINTF_ATTRIBUTE(3,4);
35 static void tdb_log(struct tdb_context *tdb, enum tdb_debug_level level, const char *format, ...)
42 vfprintf(stdout, format, ap);
48 asprintf(&ptr,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
55 static void fatal(const char *why)
61 static char *randbuf(int len)
65 buf = (char *)malloc(len+1);
68 buf[i] = 'a' + (rand() % 26);
74 static int cull_traverse(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
78 if (random() % CULL_PROB == 0) {
85 static void addrec_db(void)
91 klen = 1 + (rand() % KEYLEN);
92 dlen = 1 + (rand() % DATALEN);
97 key.dptr = (unsigned char *)k;
100 data.dptr = (unsigned char *)d;
104 if (in_transaction == 0 && random() % TRANSACTION_PROB == 0) {
105 if (tdb_transaction_start(db) != 0) {
106 fatal("tdb_transaction_start failed");
111 if (in_transaction && random() % TRANSACTION_PROB == 0) {
112 if (tdb_transaction_commit(db) != 0) {
113 fatal("tdb_transaction_commit failed");
118 if (in_transaction && random() % TRANSACTION_PROB == 0) {
119 if (tdb_transaction_cancel(db) != 0) {
120 fatal("tdb_transaction_cancel failed");
128 if (in_transaction == 0 && random() % REOPEN_PROB == 0) {
135 if (random() % DELETE_PROB == 0) {
142 if (random() % STORE_PROB == 0) {
143 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
144 fatal("tdb_store failed");
151 if (random() % APPEND_PROB == 0) {
152 if (tdb_append(db, key, data) != 0) {
153 fatal("tdb_append failed");
160 if (random() % LOCKSTORE_PROB == 0) {
161 tdb_chainlock(db, key);
162 data = tdb_fetch(db, key);
163 if (tdb_store(db, key, data, TDB_REPLACE) != 0) {
164 fatal("tdb_store failed");
166 if (data.dptr) free(data.dptr);
167 tdb_chainunlock(db, key);
173 if (random() % TRAVERSE_PROB == 0) {
174 tdb_traverse(db, cull_traverse, NULL);
179 #if TRAVERSE_READ_PROB
180 if (random() % TRAVERSE_READ_PROB == 0) {
181 tdb_traverse_read(db, NULL, NULL);
186 data = tdb_fetch(db, key);
187 if (data.dptr) free(data.dptr);
194 static int traverse_fn(struct tdb_context *tdb, TDB_DATA key, TDB_DATA dbuf,
197 tdb_delete(tdb, key);
201 static void usage(void)
203 printf("Usage: tdbtorture [-n NUM_PROCS] [-l NUM_LOOPS] [-s SEED] [-H HASH_SIZE]\n");
207 int main(int argc, char * const *argv)
211 int num_loops = 5000;
217 struct tdb_logging_context log_ctx;
218 log_ctx.log_fn = tdb_log;
220 while ((c = getopt(argc, argv, "n:l:s:H:h")) != -1) {
223 num_procs = strtol(optarg, NULL, 0);
226 num_loops = strtol(optarg, NULL, 0);
229 hash_size = strtol(optarg, NULL, 0);
232 seed = strtol(optarg, NULL, 0);
239 unlink("torture.tdb");
241 pids = (pid_t *)calloc(sizeof(pid_t), num_procs);
244 for (i=0;i<num_procs-1;i++) {
245 if ((pids[i+1]=fork()) == 0) break;
248 db = tdb_open_ex("torture.tdb", hash_size, TDB_CLEAR_IF_FIRST,
249 O_RDWR | O_CREAT, 0600, &log_ctx, NULL);
251 fatal("db open failed");
255 seed = (getpid() + time(NULL)) & 0x7FFFFFFF;
259 printf("testing with %d processes, %d loops, %d hash_size, seed=%d\n",
260 num_procs, num_loops, hash_size, seed);
266 for (i=0;i<num_loops && error_count == 0;i++) {
270 if (error_count == 0) {
271 tdb_traverse_read(db, NULL, NULL);
272 tdb_traverse(db, traverse_fn, NULL);
273 tdb_traverse(db, traverse_fn, NULL);
278 if (getpid() != pids[0]) {
282 for (i=1;i<num_procs;i++) {
285 if (error_count != 0) {
286 /* try and stop the test on any failure */
287 for (j=1;j<num_procs;j++) {
289 kill(pids[j], SIGTERM);
293 pid = waitpid(-1, &status, 0);
295 perror("failed to wait for child\n");
298 for (j=1;j<num_procs;j++) {
299 if (pids[j] == pid) break;
301 if (j == num_procs) {
302 printf("unknown child %d exited!?\n", (int)pid);
305 if (WEXITSTATUS(status) != 0) {
306 printf("child %d exited with status %d\n",
307 (int)pid, WEXITSTATUS(status));
313 if (error_count == 0) {