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/*
* Unix SMB/CIFS implementation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/filesys.h"
#include <tdb.h>
#include <stdio.h>
#include <errno.h>
#include "system/wait.h"
#define NPROCS 500
#define NUMOPS 1000000
int main(void)
{
pid_t pids[NPROCS];
struct tdb_context *tdb = NULL;
int i;
uint32_t seqnum_before, seqnum_after;
tdb = tdb_open("seqnum_test.tdb",
10000,
TDB_CLEAR_IF_FIRST|
TDB_SEQNUM|
TDB_INCOMPATIBLE_HASH|
TDB_MUTEX_LOCKING,
O_CREAT|O_RDWR,
0644);
if (tdb == NULL) {
perror("tdb_open failed");
return 1;
}
seqnum_before = tdb_get_seqnum(tdb);
for (i=0; i<NPROCS; i++) {
pids[i] = fork();
if (pids[i] == -1) {
perror("fork failed");
return 1;
}
if (pids[i] == 0) {
pid_t mypid = getpid();
int ret;
int j;
ret = tdb_reopen(tdb);
if (ret != 0) {
perror("tdb_reopen failed");
return 1;
}
for (j=0; j<NUMOPS; j++) {
TDB_DATA key = {
.dptr = (uint8_t *)&mypid,
.dsize = sizeof(mypid),
};
TDB_DATA value = {
.dptr = (uint8_t *)&j,
.dsize = sizeof(j),
};
ret = tdb_store(tdb, key, value, 0);
if (ret == -1) {
perror("tdb_store failed");
return 1;
}
}
return 0;
}
}
for (i=0; i<NPROCS; i++) {
int wstatus;
pid_t ret = waitpid(pids[i], &wstatus, 0);
if (ret == -1) {
perror("waitpid failed");
return 1;
}
if (!WIFEXITED(wstatus)) {
fprintf(stderr,
"pid %d did not exit properly\n",
(int)pids[i]);
return 1;
}
if (WEXITSTATUS(wstatus) != 0) {
fprintf(stderr,
"pid %d returned %d\n",
(int)pids[i],
WEXITSTATUS(wstatus));
return 1;
}
}
seqnum_after = tdb_get_seqnum(tdb);
printf("seqnum_before=%"PRIu32", seqnum_after=%"PRIu32"\n",
seqnum_before,
seqnum_after);
if ((seqnum_after - seqnum_before) != (NPROCS*NUMOPS)) {
perror("incrementing seqnum failed");
return 1;
}
return 0;
}
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