1 files changed, 251 insertions, 0 deletions
diff --git a/test/recovery/recovery.c b/test/recovery/recovery.c
new file mode 100644
index 00000000000..b888973d048
--- /dev/null
+++ b/test/recovery/recovery.c
@@ -0,0 +1,251 @@
+/*-
+ * Public Domain 2014-2015 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 *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()
+{
+	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.
+	 */
+	chdir(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.
+	 */
+	setvbuf(fp, NULL, _IONBF, 0);
+
+	/*
+	 * 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;
+
+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;
+	char *working_dir;
+
+	if ((progname = strrchr(argv[0], DIR_DELIM)) == NULL)
+		progname = argv[0];
+	else
+		++progname;
+
+	working_dir = NULL;
+	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");
+	waitpid(pid, &status, 0);
+
+	/*
+	 * !!! If we wanted to take a copy of the directory before recovery,
+	 * this is the place to do it.
+	 */
+	chdir(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;
+		}
+	}
+	fclose(fp);
+	if ((ret = conn->close(conn, NULL)) != 0)
+		testutil_die(ret, "WT_CONNECTION:close");
+	if (absent) {
+		printf("%u record(s) absent from %u\n", absent, count);
+		return (EXIT_FAILURE);
+	}
+	printf("%u records verified\n", count);
+	return (EXIT_SUCCESS);
+}