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/*-
* Public Domain 2014-2016 MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "test_util.h"
#include <sys/wait.h>
#include <signal.h>
static char home[512]; /* Program working dir */
static const char *progname; /* Program name */
static const char * const uri = "table:main";
#define RECORDS_FILE "records"
#define ENV_CONFIG \
"create,log=(file_max=10M,archive=false,enabled)," \
"transaction_sync=(enabled,method=none)"
#define ENV_CONFIG_REC "log=(recover=on)"
#define MAX_VAL 4096
static void
usage(void)
{
fprintf(stderr, "usage: %s [-h dir]\n", progname);
exit(EXIT_FAILURE);
}
/*
* Child process creates the database and table, and then writes data into
* the table until it is killed by the parent.
*/
static void
fill_db(void)
{
FILE *fp;
WT_CONNECTION *conn;
WT_CURSOR *cursor;
WT_ITEM data;
WT_RAND_STATE rnd;
WT_SESSION *session;
uint64_t i;
int ret;
uint8_t buf[MAX_VAL];
__wt_random_init(&rnd);
memset(buf, 0, sizeof(buf));
/*
* Initialize the first 25% to random values. Leave a bunch of data
* space at the end to emphasize zero data.
*/
for (i = 0; i < MAX_VAL/4; i++)
buf[i] = (uint8_t)__wt_random(&rnd);
/*
* Run in the home directory so that the records file is in there too.
*/
if (chdir(home) != 0)
testutil_die(errno, "chdir: %s", home);
if ((ret = wiredtiger_open(NULL, NULL, ENV_CONFIG, &conn)) != 0)
testutil_die(ret, "wiredtiger_open");
if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
testutil_die(ret, "WT_CONNECTION:open_session");
if ((ret = session->create(session,
uri, "key_format=Q,value_format=u")) != 0)
testutil_die(ret, "WT_SESSION.create: %s", uri);
if ((ret =
session->open_cursor(session, uri, NULL, NULL, &cursor)) != 0)
testutil_die(ret, "WT_SESSION.open_cursor: %s", uri);
/*
* Keep a separate file with the records we wrote for checking.
*/
(void)unlink(RECORDS_FILE);
if ((fp = fopen(RECORDS_FILE, "w")) == NULL)
testutil_die(errno, "fopen");
/*
* Set to no buffering.
*/
__wt_stream_set_no_buffer(fp);
/*
* Write data into the table until we are killed by the parent.
* The data in the buffer is already set to random content.
*/
data.data = buf;
for (i = 0;; ++i) {
data.size = __wt_random(&rnd) % MAX_VAL;
cursor->set_key(cursor, i);
cursor->set_value(cursor, &data);
if ((ret = cursor->insert(cursor)) != 0)
testutil_die(ret, "WT_CURSOR.insert");
/*
* Save the key separately for checking later.
*/
if (fprintf(fp, "%" PRIu64 "\n", i) == -1)
testutil_die(errno, "fprintf");
if (i % 5000)
__wt_yield();
}
}
extern int __wt_optind;
extern char *__wt_optarg;
void (*custom_die)(void) = NULL;
int
main(int argc, char *argv[])
{
FILE *fp;
WT_CONNECTION *conn;
WT_CURSOR *cursor;
WT_SESSION *session;
WT_RAND_STATE rnd;
uint64_t key;
uint32_t absent, count, timeout;
int ch, status, ret;
pid_t pid;
const char *working_dir;
if ((progname = strrchr(argv[0], DIR_DELIM)) == NULL)
progname = argv[0];
else
++progname;
working_dir = "WT_TEST.random-abort";
timeout = 10;
while ((ch = __wt_getopt(progname, argc, argv, "h:t:")) != EOF)
switch (ch) {
case 'h':
working_dir = __wt_optarg;
break;
case 't':
timeout = (uint32_t)atoi(__wt_optarg);
break;
default:
usage();
}
argc -= __wt_optind;
argv += __wt_optind;
if (argc != 0)
usage();
testutil_work_dir_from_path(home, 512, working_dir);
testutil_make_work_dir(home);
/*
* Fork a child to insert as many items. We will then randomly
* kill the child, run recovery and make sure all items we wrote
* exist after recovery runs.
*/
if ((pid = fork()) < 0)
testutil_die(errno, "fork");
if (pid == 0) { /* child */
fill_db();
return (EXIT_SUCCESS);
}
/* parent */
__wt_random_init(&rnd);
/* Sleep for the configured amount of time before killing the child. */
printf("Parent: sleep %" PRIu32 " seconds, then kill child\n", timeout);
sleep(timeout);
/*
* !!! It should be plenty long enough to make sure more than one
* log file exists. If wanted, that check would be added here.
*/
printf("Kill child\n");
if (kill(pid, SIGKILL) != 0)
testutil_die(errno, "kill");
if (waitpid(pid, &status, 0) == -1)
testutil_die(errno, "waitpid");
/*
* !!! If we wanted to take a copy of the directory before recovery,
* this is the place to do it.
*/
if (chdir(home) != 0)
testutil_die(errno, "chdir: %s", home);
printf("Open database, run recovery and verify content\n");
if ((ret = wiredtiger_open(NULL, NULL, ENV_CONFIG_REC, &conn)) != 0)
testutil_die(ret, "wiredtiger_open");
if ((ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
testutil_die(ret, "WT_CONNECTION:open_session");
if ((ret =
session->open_cursor(session, uri, NULL, NULL, &cursor)) != 0)
testutil_die(ret, "WT_SESSION.open_cursor: %s", uri);
if ((fp = fopen(RECORDS_FILE, "r")) == NULL)
testutil_die(errno, "fopen");
/*
* For every key in the saved file, verify that the key exists
* in the table after recovery. Since we did write-no-sync, we
* expect every key to have been recovered.
*/
for (absent = count = 0;; ++count) {
ret = fscanf(fp, "%" SCNu64 "\n", &key);
if (ret != EOF && ret != 1)
testutil_die(errno, "fscanf");
if (ret == EOF)
break;
cursor->set_key(cursor, key);
if ((ret = cursor->search(cursor)) != 0) {
if (ret != WT_NOTFOUND)
testutil_die(ret, "search");
printf("no record with key %" PRIu64 "\n", key);
++absent;
}
}
if (fclose(fp) != 0)
testutil_die(errno, "fclose");
if ((ret = conn->close(conn, NULL)) != 0)
testutil_die(ret, "WT_CONNECTION:close");
if (absent) {
printf("%" PRIu32 " record(s) absent from %" PRIu32 "\n",
absent, count);
return (EXIT_FAILURE);
}
printf("%" PRIu32 " records verified\n", count);
return (EXIT_SUCCESS);
}
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