Import changeset

1 files changed, 237 insertions, 0 deletions

diff --git a/bdb/db_checkpoint/db_checkpoint.c b/bdb/db_checkpoint/db_checkpoint.c
new file mode 100644
index 00000000000..c7d16e02334
--- /dev/null
+++ b/bdb/db_checkpoint/db_checkpoint.c
@@ -0,0 +1,237 @@
+/*-
+ * 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_checkpoint.c,v 11.25 2001/01/18 18:36:57 bostic Exp $";
+#endif
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#if TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#else
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
+#endif
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "db_page.h"
+#include "btree.h"
+#include "hash.h"
+#include "qam.h"
+#include "common_ext.h"
+#include "clib_ext.h"
+
+char	*check __P((DB_ENV *, long, long));
+int	 main __P((int, char *[]));
+void	 usage __P((void));
+void	 version_check __P((void));
+
+DB_ENV	*dbenv;
+const char
+	*progname = "db_checkpoint";		/* Program name. */
+
+int
+main(argc, argv)
+	int argc;
+	char *argv[];
+{
+	extern char *optarg;
+	extern int optind;
+	time_t now;
+	long argval;
+	u_int32_t flags, kbytes, minutes, seconds;
+	int ch, e_close, exitval, once, ret, verbose;
+	char *home, *logfile;
+
+	version_check();
+
+	/*
+	 * !!!
+	 * Don't allow a fully unsigned 32-bit number, some compilers get
+	 * upset and require it to be specified in hexadecimal and so on.
+	 */
+#define	MAX_UINT32_T	2147483647
+
+	kbytes = minutes = 0;
+	e_close = exitval = once = verbose = 0;
+	flags = 0;
+	home = logfile = NULL;
+	while ((ch = getopt(argc, argv, "1h:k:L:p:Vv")) != EOF)
+		switch (ch) {
+		case '1':
+			once = 1;
+			flags = DB_FORCE;
+			break;
+		case 'h':
+			home = optarg;
+			break;
+		case 'k':
+			(void)__db_getlong(NULL, progname,
+			    optarg, 1, (long)MAX_UINT32_T, &argval);
+			kbytes = argval;
+			break;
+		case 'L':
+			logfile = optarg;
+			break;
+		case 'p':
+			(void)__db_getlong(NULL, progname,
+			    optarg, 1, (long)MAX_UINT32_T, &argval);
+			minutes = argval;
+			break;
+		case 'V':
+			printf("%s\n", db_version(NULL, NULL, NULL));
+			exit(0);
+		case 'v':
+			verbose = 1;
+			break;
+		case '?':
+		default:
+			usage();
+			goto shutdown;
+		}
+	argc -= optind;
+	argv += optind;
+
+	if (argc != 0)
+		usage();
+
+	if (once == 0 && kbytes == 0 && minutes == 0) {
+		(void)fprintf(stderr,
+		    "%s: at least one of -1, -k and -p must be specified\n",
+		    progname);
+		exit (1);
+	}
+
+	/* Handle possible interruptions. */
+	__db_util_siginit();
+
+	/* Log our process ID. */
+	if (logfile != NULL && __db_util_logset(progname, logfile))
+		goto shutdown;
+
+	/*
+	 * 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);
+
+	/* Initialize the environment. */
+	if ((ret = dbenv->open(dbenv,
+	    home, DB_JOINENV | DB_USE_ENVIRON, 0)) != 0) {
+		dbenv->err(dbenv, ret, "open");
+		goto shutdown;
+	}
+
+	/* Register the standard pgin/pgout functions, in case we do I/O. */
+	if ((ret =
+	    memp_register(dbenv, DB_FTYPE_SET, __db_pgin, __db_pgout)) != 0) {
+		dbenv->err(dbenv, ret,
+		    "failed to register access method functions");
+		goto shutdown;
+	}
+
+	/*
+	 * If we have only a time delay, then we'll sleep the right amount
+	 * to wake up when a checkpoint is necessary.  If we have a "kbytes"
+	 * field set, then we'll check every 30 seconds.
+	 */
+	seconds = kbytes != 0 ? 30 : minutes * 60;
+	while (!__db_util_interrupted()) {
+		if (verbose) {
+			(void)time(&now);
+			dbenv->errx(dbenv, "checkpoint: %s", ctime(&now));
+		}
+
+		ret = txn_checkpoint(dbenv, kbytes, minutes, flags);
+		while (ret == DB_INCOMPLETE) {
+			if (verbose)
+				dbenv->errx(dbenv,
+				    "checkpoint did not finish, retrying\n");
+			(void)__os_sleep(dbenv, 2, 0);
+			ret = txn_checkpoint(dbenv, 0, 0, flags);
+		}
+		if (ret != 0) {
+			dbenv->err(dbenv, ret, "txn_checkpoint");
+			goto shutdown;
+		}
+
+		if (once)
+			break;
+
+		(void)__os_sleep(dbenv, seconds, 0);
+	}
+
+	if (0) {
+shutdown:	exitval = 1;
+	}
+
+	/* Clean up the logfile. */
+	if (logfile != NULL)
+		remove(logfile);
+
+	/* Clean up the environment. */
+	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()
+{
+	(void)fprintf(stderr,
+    "usage: db_checkpoint [-1Vv] [-h home] [-k kbytes] [-L file] [-p min]\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);
+	}
+}