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authorZhang Qiang <qiang.z.zhang@intel.com>2012-05-29 12:22:00 +0800
committerZhang Qiang <qiang.z.zhang@intel.com>2012-05-29 12:22:00 +0800
commit02f0634ac29e19c68279e5544cac963e7f1203b8 (patch)
treeb983472f94ef063cedf866d8ecfb55939171779d /db_checkpoint
parente776056ea09ba0b6d9505ced6913c9190a12d632 (diff)
downloaddb4-2.0alpha.tar.gz
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db4-2.0alpha.zip
Sync source code from Tizen:BaseHEAD2.0_alphamaster2.0alpha1.0_post
Diffstat (limited to 'db_checkpoint')
-rw-r--r--db_checkpoint/db_checkpoint.c237
1 files changed, 237 insertions, 0 deletions
diff --git a/db_checkpoint/db_checkpoint.c b/db_checkpoint/db_checkpoint.c
new file mode 100644
index 0000000..ab8c388
--- /dev/null
+++ b/db_checkpoint/db_checkpoint.c
@@ -0,0 +1,237 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996-2009 Oracle. All rights reserved.
+ *
+ * $Id$
+ */
+
+#include "db_config.h"
+
+#include "db_int.h"
+
+#ifndef lint
+static const char copyright[] =
+ "Copyright (c) 1996-2009 Oracle. All rights reserved.\n";
+#endif
+
+int main __P((int, char *[]));
+int usage __P((void));
+int version_check __P((void));
+
+const char *progname;
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ extern char *optarg;
+ extern int optind;
+ DB_ENV *dbenv;
+ time_t now;
+ long argval;
+ u_int32_t flags, kbytes, minutes, seconds;
+ int ch, exitval, once, ret, verbose;
+ char *home, *logfile, *passwd, time_buf[CTIME_BUFLEN];
+
+ if ((progname = __db_rpath(argv[0])) == NULL)
+ progname = argv[0];
+ else
+ ++progname;
+
+ if ((ret = version_check()) != 0)
+ return (ret);
+
+ /*
+ * !!!
+ * 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
+
+ dbenv = NULL;
+ kbytes = minutes = 0;
+ exitval = once = verbose = 0;
+ flags = 0;
+ home = logfile = passwd = NULL;
+ while ((ch = getopt(argc, argv, "1h:k:L:P:p:Vv")) != EOF)
+ switch (ch) {
+ case '1':
+ once = 1;
+ flags = DB_FORCE;
+ break;
+ case 'h':
+ home = optarg;
+ break;
+ case 'k':
+ if (__db_getlong(NULL, progname,
+ optarg, 1, (long)MAX_UINT32_T, &argval))
+ return (EXIT_FAILURE);
+ kbytes = (u_int32_t)argval;
+ break;
+ case 'L':
+ logfile = optarg;
+ break;
+ case 'P':
+ passwd = strdup(optarg);
+ memset(optarg, 0, strlen(optarg));
+ if (passwd == NULL) {
+ fprintf(stderr, "%s: strdup: %s\n",
+ progname, strerror(errno));
+ return (EXIT_FAILURE);
+ }
+ break;
+ case 'p':
+ if (__db_getlong(NULL, progname,
+ optarg, 1, (long)MAX_UINT32_T, &argval))
+ return (EXIT_FAILURE);
+ minutes = (u_int32_t)argval;
+ break;
+ case 'V':
+ printf("%s\n", db_version(NULL, NULL, NULL));
+ return (EXIT_SUCCESS);
+ case 'v':
+ verbose = 1;
+ break;
+ case '?':
+ default:
+ return (usage());
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 0)
+ return (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);
+ return (usage());
+ }
+
+ /* 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;
+ }
+
+ dbenv->set_errfile(dbenv, stderr);
+ dbenv->set_errpfx(dbenv, progname);
+
+ if (passwd != NULL && (ret = dbenv->set_encrypt(dbenv,
+ passwd, DB_ENCRYPT_AES)) != 0) {
+ dbenv->err(dbenv, ret, "set_passwd");
+ goto shutdown;
+ }
+
+ /*
+ * If attaching to a pre-existing environment fails, create a
+ * private one and try again. Turn on DB_THREAD in case a repmgr
+ * application wants to do checkpointing using this utility: repmgr
+ * requires DB_THREAD for all env handles.
+ */
+#ifdef HAVE_REPLICATION_THREADS
+#define ENV_FLAGS (DB_THREAD | DB_USE_ENVIRON)
+#else
+#define ENV_FLAGS DB_USE_ENVIRON
+#endif
+ if ((ret = dbenv->open(dbenv, home, ENV_FLAGS, 0)) != 0 &&
+ (!once || ret == DB_VERSION_MISMATCH ||
+ (ret = dbenv->open(dbenv, home,
+ DB_CREATE | DB_INIT_TXN | DB_PRIVATE | DB_USE_ENVIRON, 0)) != 0)) {
+ dbenv->err(dbenv, ret, "DB_ENV->open");
+ 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 begin: %s", __os_ctime(&now, time_buf));
+ }
+
+ if ((ret = dbenv->txn_checkpoint(dbenv,
+ kbytes, minutes, flags)) != 0) {
+ dbenv->err(dbenv, ret, "txn_checkpoint");
+ goto shutdown;
+ }
+
+ if (verbose) {
+ (void)time(&now);
+ dbenv->errx(dbenv,
+ "checkpoint complete: %s", __os_ctime(&now, time_buf));
+ }
+
+ if (once)
+ break;
+
+ __os_yield(dbenv->env, seconds, 0);
+ }
+
+ if (0) {
+shutdown: exitval = 1;
+ }
+
+ /* Clean up the logfile. */
+ if (logfile != NULL)
+ (void)remove(logfile);
+
+ /* Clean up the environment. */
+ if (dbenv != NULL && (ret = dbenv->close(dbenv, 0)) != 0) {
+ exitval = 1;
+ fprintf(stderr,
+ "%s: dbenv->close: %s\n", progname, db_strerror(ret));
+ }
+
+ if (passwd != NULL)
+ free(passwd);
+
+ /* Resend any caught signal. */
+ __db_util_sigresend();
+
+ return (exitval == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+
+int
+usage()
+{
+ (void)fprintf(stderr, "usage: %s [-1Vv]\n\t%s\n", progname,
+ "[-h home] [-k kbytes] [-L file] [-P password] [-p min]");
+ return (EXIT_FAILURE);
+}
+
+int
+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) {
+ fprintf(stderr,
+ "%s: version %d.%d doesn't match library version %d.%d\n",
+ progname, DB_VERSION_MAJOR, DB_VERSION_MINOR,
+ v_major, v_minor);
+ return (EXIT_FAILURE);
+ }
+ return (0);
+}