1 /* this tests tdb by doing lots of ops from several simultaneous
2 writers - that stresses the locking code.
14 #include <sys/types.h>
19 //#define REOPEN_PROB 30
23 #define TRANSACTION_PROB 10
24 #define TRANSACTION_PREPARE_PROB 2
25 #define LOCKSTORE_PROB 5
26 #define TRAVERSE_PROB 20
27 #define TRAVERSE_MOD_PROB 100
28 #define TRAVERSE_ABORT_PROB 500
33 static struct tdb_context
*db
;
34 static int in_transaction
;
35 static int in_traverse
;
36 static int error_count
;
38 static int always_transaction
= 0;
41 static int count_pipe
;
42 static union tdb_attribute log_attr
;
43 static union tdb_attribute seed_attr
;
45 static void tdb_log(struct tdb_context
*tdb
,
46 enum tdb_log_level level
,
51 printf("tdb:%s:%s:%s\n",
52 tdb_name(tdb
), tdb_errorstr(ecode
), message
);
57 signal(SIGUSR1
, SIG_IGN
);
58 sprintf(str
,"xterm -e gdb /proc/%d/exe %d", getpid(), getpid());
64 #include "../private.h"
66 static void segv_handler(int sig
, siginfo_t
*info
, void *p
)
70 sprintf(string
, "%u: death at %p (map_ptr %p, map_size %zu)\n",
71 getpid(), info
->si_addr
, db
->file
->map_ptr
,
72 (size_t)db
->file
->map_size
);
73 if (write(2, string
, strlen(string
)) > 0)
78 static void fatal(struct tdb_context
*tdb
, const char *why
)
80 fprintf(stderr
, "%u:%s:%s\n", getpid(), why
,
81 tdb
? tdb_errorstr(tdb_error(tdb
)) : "(no tdb)");
85 static char *randbuf(int len
)
89 buf
= (char *)malloc(len
+1);
92 buf
[i
] = 'a' + (rand() % 26);
98 static void addrec_db(void);
99 static int modify_traverse(struct tdb_context
*tdb
, TDB_DATA key
, TDB_DATA dbuf
,
103 if (random() % CULL_PROB
== 0) {
104 tdb_delete(tdb
, key
);
108 #if TRAVERSE_MOD_PROB
109 if (random() % TRAVERSE_MOD_PROB
== 0) {
114 #if TRAVERSE_ABORT_PROB
115 if (random() % TRAVERSE_ABORT_PROB
== 0)
122 static void addrec_db(void)
128 klen
= 1 + (rand() % KEYLEN
);
129 dlen
= 1 + (rand() % DATALEN
);
134 key
.dptr
= (unsigned char *)k
;
137 data
.dptr
= (unsigned char *)d
;
141 if (in_traverse
== 0 && in_transaction
== 0 && random() % REOPEN_PROB
== 0) {
148 if (in_traverse
== 0 && in_transaction
== 0 && (always_transaction
|| random() % TRANSACTION_PROB
== 0)) {
149 if (tdb_transaction_start(db
) != 0) {
150 fatal(db
, "tdb_transaction_start failed");
155 if (in_traverse
== 0 && in_transaction
&& random() % TRANSACTION_PROB
== 0) {
156 if (random() % TRANSACTION_PREPARE_PROB
== 0) {
157 if (tdb_transaction_prepare_commit(db
) != 0) {
158 fatal(db
, "tdb_transaction_prepare_commit failed");
161 if (tdb_transaction_commit(db
) != 0) {
162 fatal(db
, "tdb_transaction_commit failed");
168 if (in_traverse
== 0 && in_transaction
&& random() % TRANSACTION_PROB
== 0) {
169 tdb_transaction_cancel(db
);
176 if (random() % DELETE_PROB
== 0) {
183 if (random() % STORE_PROB
== 0) {
184 if (tdb_store(db
, key
, data
, TDB_REPLACE
) != 0) {
185 fatal(db
, "tdb_store failed");
192 if (random() % APPEND_PROB
== 0) {
193 if (tdb_append(db
, key
, data
) != 0) {
194 fatal(db
, "tdb_append failed");
201 if (random() % LOCKSTORE_PROB
== 0) {
202 tdb_chainlock(db
, key
);
203 if (tdb_fetch(db
, key
, &data
) != TDB_SUCCESS
) {
207 if (tdb_store(db
, key
, data
, TDB_REPLACE
) != 0) {
208 fatal(db
, "tdb_store failed");
210 if (data
.dptr
) free(data
.dptr
);
211 tdb_chainunlock(db
, key
);
217 /* FIXME: recursive traverses break transactions? */
218 if (in_traverse
== 0 && random() % TRAVERSE_PROB
== 0) {
220 tdb_traverse(db
, modify_traverse
, NULL
);
226 if (tdb_fetch(db
, key
, &data
) == TDB_SUCCESS
)
234 static int traverse_fn(struct tdb_context
*tdb
, TDB_DATA key
, TDB_DATA dbuf
,
237 tdb_delete(tdb
, key
);
241 static void usage(void)
243 printf("Usage: tdbtorture"
247 " [-k] [-n NUM_PROCS] [-l NUM_LOOPS] [-s SEED] [-S]\n");
251 static void send_count_and_suicide(int sig
)
253 /* This ensures our successor can continue where we left off. */
254 if (write(count_pipe
, &loopnum
, sizeof(loopnum
)) != sizeof(loopnum
))
256 /* This gives a unique signature. */
257 kill(getpid(), SIGUSR2
);
260 static int run_child(int i
, int seed
, unsigned num_loops
, unsigned start
,
263 struct sigaction act
= { .sa_sigaction
= segv_handler
,
264 .sa_flags
= SA_SIGINFO
};
265 sigaction(11, &act
, NULL
);
267 db
= tdb_open("torture.tdb", tdb_flags
, O_RDWR
| O_CREAT
, 0600,
270 fatal(NULL
, "db open failed");
275 printf("pid %i\n", getpid());
284 /* Set global, then we're ready to handle being killed. */
286 signal(SIGUSR1
, send_count_and_suicide
);
288 for (;loopnum
<num_loops
&& error_count
== 0;loopnum
++) {
292 if (error_count
== 0) {
293 tdb_traverse(db
, NULL
, NULL
);
295 if (always_transaction
) {
296 while (in_transaction
) {
297 tdb_transaction_cancel(db
);
300 if (tdb_transaction_start(db
) != 0)
301 fatal(db
, "tdb_transaction_start failed");
304 tdb_traverse(db
, traverse_fn
, NULL
);
305 tdb_traverse(db
, traverse_fn
, NULL
);
308 if (always_transaction
) {
309 if (tdb_transaction_commit(db
) != 0)
310 fatal(db
, "tdb_transaction_commit failed");
317 return (error_count
< 100 ? error_count
: 100);
320 int main(int argc
, char * const *argv
)
323 int num_loops
= 5000;
330 int tdb_flags
= TDB_DEFAULT
;
332 log_attr
.base
.attr
= TDB_ATTRIBUTE_LOG
;
333 log_attr
.base
.next
= &seed_attr
;
334 log_attr
.log
.fn
= tdb_log
;
335 seed_attr
.base
.attr
= TDB_ATTRIBUTE_SEED
;
337 while ((c
= getopt(argc
, argv
, "n:l:s:thkS")) != -1) {
340 num_procs
= strtol(optarg
, NULL
, 0);
343 num_loops
= strtol(optarg
, NULL
, 0);
346 seed
= strtol(optarg
, NULL
, 0);
349 tdb_flags
= TDB_NOSYNC
;
353 always_transaction
= 1;
355 fprintf(stderr
, "Transactions not supported\n");
367 unlink("torture.tdb");
370 seed
= (getpid() + time(NULL
)) & 0x7FFFFFFF;
372 seed_attr
.seed
.seed
= (((uint64_t)seed
) << 32) | seed
;
374 if (num_procs
== 1 && !kill_random
) {
375 /* Don't fork for this case, makes debugging easier. */
376 error_count
= run_child(0, seed
, num_loops
, 0, tdb_flags
);
380 pids
= (pid_t
*)calloc(sizeof(pid_t
), num_procs
);
381 done
= (int *)calloc(sizeof(int), num_procs
);
383 if (pipe(pfds
) != 0) {
384 perror("Creating pipe");
387 count_pipe
= pfds
[1];
389 for (i
=0;i
<num_procs
;i
++) {
390 if ((pids
[i
]=fork()) == 0) {
393 printf("testing with %d processes, %d loops, seed=%d%s\n",
394 num_procs
, num_loops
, seed
,
396 always_transaction
? " (all within transactions)" : ""
402 exit(run_child(i
, seed
, num_loops
, 0, tdb_flags
));
410 if (error_count
!= 0) {
411 /* try and stop the test on any failure */
412 for (j
=0;j
<num_procs
;j
++) {
414 kill(pids
[j
], SIGTERM
);
419 pid
= waitpid(-1, &status
, kill_random
? WNOHANG
: 0);
423 /* Sleep for 1/10 second. */
425 ts
.tv_nsec
= 100000000;
426 nanosleep(&ts
, NULL
);
429 kill(pids
[random() % num_procs
], SIGUSR1
);
434 perror("failed to wait for child\n");
438 for (j
=0;j
<num_procs
;j
++) {
439 if (pids
[j
] == pid
) break;
441 if (j
== num_procs
) {
442 printf("unknown child %d exited!?\n", (int)pid
);
445 if (WIFSIGNALED(status
)) {
446 if (WTERMSIG(status
) == SIGUSR2
447 || WTERMSIG(status
) == SIGUSR1
) {
448 /* SIGUSR2 means they wrote to pipe. */
449 if (WTERMSIG(status
) == SIGUSR2
) {
450 if (read(pfds
[0], &done
[j
],
454 "Short read from child?");
458 exit(run_child(j
, seed
, num_loops
,
459 done
[j
], tdb_flags
));
460 printf("Restarting child %i for %u-%u\n",
461 j
, done
[j
], num_loops
);
464 printf("child %d exited with signal %d\n",
465 (int)pid
, WTERMSIG(status
));
468 if (WEXITSTATUS(status
) != 0) {
469 printf("child %d exited with status %d\n",
470 (int)pid
, WEXITSTATUS(status
));
474 memmove(&pids
[j
], &pids
[j
+1],
475 (num_procs
- j
- 1)*sizeof(pids
[0]));
482 if (error_count
== 0) {
483 db
= tdb_open("torture.tdb", TDB_DEFAULT
, O_RDWR
| O_CREAT
,
486 fatal(db
, "db open failed");
489 if (tdb_check(db
, NULL
, NULL
) != 0) {
490 fatal(db
, "db check failed");