text: /*-
   * 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 <sys/wait.h>
  #include <errno.h>
  #include <signal.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #ifndef _WIN32
  #include <unistd.h>
  #endif
  
  #include <wiredtiger.h>
  
  #include "test_util.i"
  
  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);
  }
  