Import changeset

bdb/db_printlog/db_printlog.c

@@ -0,0 +1,200 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997, 1998, 1999, 2000
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char copyright[] =
+    "Copyright (c) 1996-2000\nSleepycat Software Inc.  All rights reserved.\n";
+static const char revid[] =
+    "$Id: db_printlog.c,v 11.23 2001/01/18 18:36:58 bostic Exp $";
+#endif
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "db_page.h"
+#include "btree.h"
+#include "db_am.h"
+#include "hash.h"
+#include "log.h"
+#include "qam.h"
+#include "txn.h"
+
+int	main __P((int, char *[]));
+void	usage __P((void));
+void	version_check __P((void));
+
+DB_ENV	*dbenv;
+const char
+	*progname = "db_printlog";			/* Program name. */
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	extern char *optarg;
+	extern int optind;
+	DBT data;
+	DB_LSN key;
+	int ch, e_close, exitval, nflag, ret;
+	char *home;
+
+	version_check();
+
+	e_close = exitval = 0;
+	nflag = 0;
+	home = NULL;
+	while ((ch = getopt(argc, argv, "h:NV")) != EOF)
+		switch (ch) {
+		case 'h':
+			home = optarg;
+			break;
+		case 'N':
+			nflag = 1;
+			if ((ret = db_env_set_panicstate(0)) != 0) {
+				fprintf(stderr,
+				    "%s: db_env_set_panicstate: %s\n",
+				    progname, db_strerror(ret));
+				return (1);
+			}
+			break;
+		case 'V':
+			printf("%s\n", db_version(NULL, NULL, NULL));
+			exit(0);
+		case '?':
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc > 0)
+		usage();
+
+	/* Handle possible interruptions. */
+	__db_util_siginit();
+
+	/*
+	 * Create an environment object and initialize it for error
+	 * reporting.
+	 */
+	if ((ret = db_env_create(&dbenv, 0)) != 0) {
+		fprintf(stderr,
+		    "%s: db_env_create: %s\n", progname, db_strerror(ret));
+		goto shutdown;
+	}
+	e_close = 1;
+
+	dbenv->set_errfile(dbenv, stderr);
+	dbenv->set_errpfx(dbenv, progname);
+
+	if (nflag && (ret = dbenv->set_mutexlocks(dbenv, 0)) != 0) {
+		dbenv->err(dbenv, ret, "set_mutexlocks");
+		goto shutdown;
+	}
+
+	/*
+	 * An environment is required, but as all we're doing is reading log
+	 * files, we create one if it doesn't already exist.  If we create
+	 * it, create it private so it automatically goes away when we're done.
+	 */
+	if ((ret = dbenv->open(dbenv, home,
+	    DB_JOINENV | DB_USE_ENVIRON, 0)) != 0 &&
+	    (ret = dbenv->open(dbenv, home,
+	    DB_CREATE | DB_INIT_LOG | DB_PRIVATE | DB_USE_ENVIRON, 0)) != 0) {
+		dbenv->err(dbenv, ret, "open");
+		goto shutdown;
+	}
+
+	/* Initialize print callbacks. */
+	if ((ret = __bam_init_print(dbenv)) != 0 ||
+	    (ret = __crdel_init_print(dbenv)) != 0 ||
+	    (ret = __db_init_print(dbenv)) != 0 ||
+	    (ret = __qam_init_print(dbenv)) != 0 ||
+	    (ret = __ham_init_print(dbenv)) != 0 ||
+	    (ret = __log_init_print(dbenv)) != 0 ||
+	    (ret = __txn_init_print(dbenv)) != 0) {
+		dbenv->err(dbenv, ret, "callback: initialization");
+		goto shutdown;
+	}
+
+	memset(&data, 0, sizeof(data));
+	while (!__db_util_interrupted()) {
+		if ((ret = log_get(dbenv, &key, &data, DB_NEXT)) != 0) {
+			if (ret == DB_NOTFOUND)
+				break;
+			dbenv->err(dbenv, ret, "log_get");
+			goto shutdown;
+		}
+
+		/*
+		 * XXX
+		 * We use DB_TXN_ABORT as our op because that's the only op
+		 * that calls the underlying recovery function without any
+		 * consideration as to the contents of the transaction list.
+		 */
+		ret = __db_dispatch(dbenv, &data, &key, DB_TXN_ABORT, NULL);
+
+		/*
+		 * XXX
+		 * Just in case the underlying routines don't flush.
+		 */
+		(void)fflush(stdout);
+
+		if (ret != 0) {
+			dbenv->err(dbenv, ret, "tx: dispatch");
+			goto shutdown;
+		}
+	}
+
+	if (0) {
+shutdown:	exitval = 1;
+	}
+	if (e_close && (ret = dbenv->close(dbenv, 0)) != 0) {
+		exitval = 1;
+		fprintf(stderr,
+		    "%s: dbenv->close: %s\n", progname, db_strerror(ret));
+	}
+
+	/* Resend any caught signal. */
+	__db_util_sigresend();
+
+	return (exitval);
+}
+
+void
+usage()
+{
+	fprintf(stderr, "usage: db_printlog [-NV] [-h home]\n");
+	exit (1);
+}
+
+void
+version_check()
+{
+	int v_major, v_minor, v_patch;
+
+	/* Make sure we're loaded with the right version of the DB library. */
+	(void)db_version(&v_major, &v_minor, &v_patch);
+	if (v_major != DB_VERSION_MAJOR ||
+	    v_minor != DB_VERSION_MINOR || v_patch != DB_VERSION_PATCH) {
+		fprintf(stderr,
+	"%s: version %d.%d.%d doesn't match library version %d.%d.%d\n",
+		    progname, DB_VERSION_MAJOR, DB_VERSION_MINOR,
+		    DB_VERSION_PATCH, v_major, v_minor, v_patch);
+		exit (1);
+	}
+}