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authorLorry <lorry@roadtrain.codethink.co.uk>2012-07-20 20:00:05 +0100
committerLorry <lorry@roadtrain.codethink.co.uk>2012-07-20 20:00:05 +0100
commit3ef782d3745ea8f25a3151561a3cfb882190210e (patch)
tree86b9c2f5fde051dd0bced99b3fc9f5a3ba08db69 /util/db_printlog.c
downloadberkeleydb-3ef782d3745ea8f25a3151561a3cfb882190210e.tar.gz
Tarball conversion
Diffstat (limited to 'util/db_printlog.c')
-rw-r--r--util/db_printlog.c688
1 files changed, 688 insertions, 0 deletions
diff --git a/util/db_printlog.c b/util/db_printlog.c
new file mode 100644
index 00000000..03a8f375
--- /dev/null
+++ b/util/db_printlog.c
@@ -0,0 +1,688 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 2012 Oracle and/or its affiliates. All rights reserved.
+ *
+ * $Id$
+ */
+
+#include "db_config.h"
+
+#include "db_int.h"
+#include "dbinc/db_page.h"
+#include "dbinc/btree.h"
+#include "dbinc/fop.h"
+#include "dbinc/hash.h"
+#ifdef HAVE_HEAP
+#include "dbinc/heap.h"
+#endif
+#include "dbinc/qam.h"
+#include "dbinc/txn.h"
+
+#ifndef lint
+static const char copyright[] =
+ "Copyright (c) 1996, 2012 Oracle and/or its affiliates. All rights reserved.\n";
+#endif
+
+int db_printlog_print_app_record __P((DB_ENV *, DBT *, DB_LSN *, db_recops));
+int env_init_print __P((ENV *, u_int32_t, DB_DISTAB *));
+int env_init_print_42 __P((ENV *, DB_DISTAB *));
+int env_init_print_43 __P((ENV *, DB_DISTAB *));
+int env_init_print_47 __P((ENV *, DB_DISTAB *));
+int env_init_print_48 __P((ENV *, DB_DISTAB *));
+int lsn_arg __P((char *, DB_LSN *));
+int main __P((int, char *[]));
+int open_rep_db __P((DB_ENV *, DB **, DBC **));
+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 *dbp;
+ DBC *dbc;
+ DBT data, keydbt;
+ DB_DISTAB dtab;
+ DB_ENV *dbenv;
+ DB_LOG dblog;
+ DB_LOGC *logc;
+ DB_LSN key, start, stop, verslsn;
+ ENV *env;
+ u_int32_t logcflag, newversion, version;
+ int ch, cmp, exitval, i, nflag, rflag, ret, repflag;
+ char *data_len, *home, *passwd;
+
+ if ((progname = __db_rpath(argv[0])) == NULL)
+ progname = argv[0];
+ else
+ ++progname;
+
+ if ((ret = version_check()) != 0)
+ return (ret);
+
+ dbp = NULL;
+ dbc = NULL;
+ dbenv = NULL;
+ env = NULL;
+ logc = NULL;
+ ZERO_LSN(start);
+ ZERO_LSN(stop);
+ exitval = nflag = rflag = repflag = 0;
+ data_len = home = passwd = NULL;
+
+ memset(&dtab, 0, sizeof(dtab));
+ memset(&dblog, 0, sizeof(dblog));
+
+ while ((ch = getopt(argc, argv, "b:D:e:h:NP:rRV")) != EOF)
+ switch (ch) {
+ case 'b':
+ /* Don't use getsubopt(3), not all systems have it. */
+ if (lsn_arg(optarg, &start))
+ return (usage());
+ break;
+ case 'D':
+ data_len = optarg;
+ break;
+ case 'e':
+ /* Don't use getsubopt(3), not all systems have it. */
+ if (lsn_arg(optarg, &stop))
+ return (usage());
+ break;
+ case 'h':
+ home = optarg;
+ break;
+ case 'N':
+ nflag = 1;
+ break;
+ case 'P':
+ if (passwd != NULL) {
+ fprintf(stderr, DB_STR("5138",
+ "Password may not be specified twice"));
+ free(passwd);
+ return (EXIT_FAILURE);
+ }
+ passwd = strdup(optarg);
+ memset(optarg, 0, strlen(optarg));
+ if (passwd == NULL) {
+ fprintf(stderr, DB_STR_A("5010",
+ "%s: strdup: %s\n", "%s %s\n"),
+ progname, strerror(errno));
+ return (EXIT_FAILURE);
+ }
+ break;
+ case 'r':
+ rflag = 1;
+ break;
+ case 'R': /* Undocumented */
+ repflag = 1;
+ break;
+ case 'V':
+ printf("%s\n", db_version(NULL, NULL, NULL));
+ return (EXIT_SUCCESS);
+ case '?':
+ default:
+ return (usage());
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc > 0)
+ return (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 err;
+ }
+
+ dbenv->set_errfile(dbenv, stderr);
+ dbenv->set_errpfx(dbenv, progname);
+ dbenv->set_msgfile(dbenv, stdout);
+
+ if (data_len != NULL)
+ (void)dbenv->set_data_len(dbenv, (u_int32_t)atol(data_len));
+
+ if (nflag) {
+ if ((ret = dbenv->set_flags(dbenv, DB_NOLOCKING, 1)) != 0) {
+ dbenv->err(dbenv, ret, "set_flags: DB_NOLOCKING");
+ goto err;
+ }
+ if ((ret = dbenv->set_flags(dbenv, DB_NOPANIC, 1)) != 0) {
+ dbenv->err(dbenv, ret, "set_flags: DB_NOPANIC");
+ goto err;
+ }
+ }
+
+ if (passwd != NULL && (ret = dbenv->set_encrypt(dbenv,
+ passwd, DB_ENCRYPT_AES)) != 0) {
+ dbenv->err(dbenv, ret, "set_passwd");
+ goto err;
+ }
+
+ /*
+ * Set up an app-specific dispatch function so that we can gracefully
+ * handle app-specific log records.
+ */
+ if ((ret = dbenv->set_app_dispatch(
+ dbenv, db_printlog_print_app_record)) != 0) {
+ dbenv->err(dbenv, ret, "app_dispatch");
+ goto err;
+ }
+
+ /*
+ * 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 we are reading the replication database, do not open the env
+ * with logging, because we don't want to log the opens.
+ */
+ if (repflag) {
+ if ((ret = dbenv->open(dbenv, home,
+ DB_INIT_MPOOL | DB_USE_ENVIRON, 0)) != 0 &&
+ (ret == DB_VERSION_MISMATCH ||
+ (ret = dbenv->open(dbenv, home,
+ DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_USE_ENVIRON, 0))
+ != 0)) {
+ dbenv->err(dbenv, ret, "DB_ENV->open");
+ goto err;
+ }
+ } else if ((ret = dbenv->open(dbenv, home, DB_USE_ENVIRON, 0)) != 0 &&
+ (ret == DB_VERSION_MISMATCH ||
+ (ret = dbenv->open(dbenv, home,
+ DB_CREATE | DB_INIT_LOG | DB_PRIVATE | DB_USE_ENVIRON, 0)) != 0)) {
+ dbenv->err(dbenv, ret, "DB_ENV->open");
+ goto err;
+ }
+ env = dbenv->env;
+
+ /* Allocate a log cursor. */
+ if (repflag) {
+ if ((ret = open_rep_db(dbenv, &dbp, &dbc)) != 0)
+ goto err;
+ } else if ((ret = dbenv->log_cursor(dbenv, &logc, 0)) != 0) {
+ dbenv->err(dbenv, ret, "DB_ENV->log_cursor");
+ goto err;
+ }
+
+ if (IS_ZERO_LSN(start)) {
+ memset(&keydbt, 0, sizeof(keydbt));
+ logcflag = rflag ? DB_PREV : DB_NEXT;
+ } else {
+ key = start;
+ logcflag = DB_SET;
+ }
+ memset(&data, 0, sizeof(data));
+
+ /*
+ * If we're using the repflag, we're immediately initializing
+ * the print table. Use the current version. If we're printing
+ * the log then initialize version to 0 so that we get the
+ * correct version right away.
+ */
+ if (repflag)
+ version = DB_LOGVERSION;
+ else
+ version = 0;
+ ZERO_LSN(verslsn);
+
+ /* Initialize print callbacks if repflag. */
+ if (repflag &&
+ (ret = env_init_print(env, version, &dtab)) != 0) {
+ dbenv->err(dbenv, ret, DB_STR("5011",
+ "callback: initialization"));
+ goto err;
+ }
+ for (; !__db_util_interrupted(); logcflag = rflag ? DB_PREV : DB_NEXT) {
+ if (repflag) {
+ ret = dbc->get(dbc, &keydbt, &data, logcflag);
+ if (ret == 0)
+ key = ((__rep_control_args *)keydbt.data)->lsn;
+ } else
+ ret = logc->get(logc, &key, &data, logcflag);
+ if (ret != 0) {
+ if (ret == DB_NOTFOUND)
+ break;
+ dbenv->err(dbenv,
+ ret, repflag ? "DBC->get" : "DB_LOGC->get");
+ goto err;
+ }
+
+ /*
+ * We may have reached the end of the range we're displaying.
+ */
+ if (!IS_ZERO_LSN(stop)) {
+ cmp = LOG_COMPARE(&key, &stop);
+ if ((rflag && cmp < 0) || (!rflag && cmp > 0))
+ break;
+ }
+ if (!repflag && key.file != verslsn.file) {
+ /*
+ * If our log file changed, we need to see if the
+ * version of the log file changed as well.
+ * If it changed, reset the print table.
+ */
+ if ((ret = logc->version(logc, &newversion, 0)) != 0) {
+ dbenv->err(dbenv, ret, "DB_LOGC->version");
+ goto err;
+ }
+ if (version != newversion) {
+ version = newversion;
+ if ((ret = env_init_print(env, version,
+ &dtab)) != 0) {
+ dbenv->err(dbenv, ret, DB_STR("5012",
+ "callback: initialization"));
+ goto err;
+ }
+ }
+ }
+
+ ret = __db_dispatch(env,
+ &dtab, &data, &key, DB_TXN_PRINT, (void*)&dblog);
+
+ /*
+ * XXX
+ * Just in case the underlying routines don't flush.
+ */
+ (void)fflush(stdout);
+
+ if (ret != 0) {
+ dbenv->err(dbenv, ret, DB_STR("5013",
+ "tx: dispatch"));
+ goto err;
+ }
+ }
+
+ if (0) {
+err: exitval = 1;
+ }
+
+ if (dtab.int_dispatch != NULL)
+ __os_free(env, dtab.int_dispatch);
+ if (dtab.ext_dispatch != NULL)
+ __os_free(env, dtab.ext_dispatch);
+ /*
+ * Call __db_close to free the dummy DB handles that were used
+ * by the print routines.
+ */
+ for (i = 0; i < dblog.dbentry_cnt; i++)
+ if (dblog.dbentry[i].dbp != NULL)
+ (void)__db_close(dblog.dbentry[i].dbp, NULL, DB_NOSYNC);
+ if (env != NULL && dblog.dbentry != NULL)
+ __os_free(env, dblog.dbentry);
+ if (logc != NULL && (ret = logc->close(logc, 0)) != 0)
+ exitval = 1;
+
+ if (dbc != NULL && (ret = dbc->close(dbc)) != 0)
+ exitval = 1;
+
+ if (dbp != NULL && (ret = dbp->close(dbp, 0)) != 0)
+ exitval = 1;
+
+ 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);
+}
+
+/*
+ * env_init_print --
+ */
+int
+env_init_print(env, version, dtabp)
+ ENV *env;
+ u_int32_t version;
+ DB_DISTAB *dtabp;
+{
+ int ret;
+
+ /*
+ * We need to prime the print table with the current print
+ * functions. Then we overwrite only specific entries based on
+ * each previous version we support.
+ */
+ if ((ret = __bam_init_print(env, dtabp)) != 0)
+ goto err;
+ if ((ret = __crdel_init_print(env, dtabp)) != 0)
+ goto err;
+ if ((ret = __db_init_print(env, dtabp)) != 0)
+ goto err;
+ if ((ret = __dbreg_init_print(env, dtabp)) != 0)
+ goto err;
+ if ((ret = __fop_init_print(env, dtabp)) != 0)
+ goto err;
+#ifdef HAVE_HASH
+ if ((ret = __ham_init_print(env, dtabp)) != 0)
+ goto err;
+#endif
+#ifdef HAVE_HEAP
+ if ((ret = __heap_init_print(env, dtabp)) != 0)
+ goto err;
+#endif
+#ifdef HAVE_QUEUE
+ if ((ret = __qam_init_print(env, dtabp)) != 0)
+ goto err;
+#endif
+#ifdef HAVE_REPLICATION_THREADS
+ if ((ret = __repmgr_init_print(env, dtabp)) != 0)
+ goto err;
+#endif
+ if ((ret = __txn_init_print(env, dtabp)) != 0)
+ goto err;
+
+ /*
+ * There are no log differences between 5.0 and 5.2, but 5.2
+ * is a superset of 5.0. Patch 2 of 4.8 added __db_pg_trunc
+ * but didn't alter any log records so we want the same
+ * override as 4.8
+ */
+ if (version > DB_LOGVERSION_48p2)
+ goto done;
+ if ((ret = env_init_print_48(env, dtabp)) != 0)
+ goto err;
+ if (version >= DB_LOGVERSION_48)
+ goto done;
+ if ((ret = env_init_print_47(env, dtabp)) != 0)
+ goto err;
+ if (version == DB_LOGVERSION_47)
+ goto done;
+ /*
+ * There are no log record/recovery differences between 4.4 and 4.5.
+ * The log version changed due to checksum. There are no log recovery
+ * differences between 4.5 and 4.6. The name of the rep_gen in
+ * txn_checkpoint changed (to spare, since we don't use it anymore).
+ */
+ if (version >= DB_LOGVERSION_44)
+ goto done;
+ if ((ret = env_init_print_43(env, dtabp)) != 0)
+ goto err;
+ if (version == DB_LOGVERSION_43)
+ goto done;
+ if (version != DB_LOGVERSION_42) {
+ __db_errx(env, DB_STR_A("5014",
+ "Unknown version %lu", "%lu"), (u_long)version);
+ ret = EINVAL;
+ goto err;
+ }
+ ret = env_init_print_42(env, dtabp);
+done:
+err: return (ret);
+}
+
+int
+env_init_print_42(env, dtabp)
+ ENV *env;
+ DB_DISTAB *dtabp;
+{
+ int ret;
+
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_relink_42_print, DB___db_relink_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_pg_alloc_42_print, DB___db_pg_alloc_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_pg_free_42_print, DB___db_pg_free_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_pg_freedata_42_print, DB___db_pg_freedata_42)) != 0)
+ goto err;
+#if HAVE_HASH
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __ham_metagroup_42_print, DB___ham_metagroup_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __ham_groupalloc_42_print, DB___ham_groupalloc_42)) != 0)
+ goto err;
+#endif
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __txn_ckp_42_print, DB___txn_ckp_42)) != 0)
+ goto err;
+err:
+ return (ret);
+}
+
+int
+env_init_print_43(env, dtabp)
+ ENV *env;
+ DB_DISTAB *dtabp;
+{
+ int ret;
+
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __bam_relink_43_print, DB___bam_relink_43)) != 0)
+ goto err;
+ /*
+ * We want to use the 4.2-based txn_regop record.
+ */
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __txn_regop_42_print, DB___txn_regop_42)) != 0)
+ goto err;
+
+err:
+ return (ret);
+}
+
+/*
+ * env_init_print_47 --
+ *
+ */
+int
+env_init_print_47(env, dtabp)
+ ENV *env;
+ DB_DISTAB *dtabp;
+{
+ int ret;
+
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __bam_split_42_print, DB___bam_split_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_pg_sort_44_print, DB___db_pg_sort_44)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_pg_sort_44_print, DB___db_pg_sort_44)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __fop_create_42_print, DB___fop_create_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __fop_write_42_print, DB___fop_write_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __fop_rename_42_print, DB___fop_rename_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __fop_rename_42_print, DB___fop_rename_noundo_46)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __txn_xa_regop_42_print, DB___txn_xa_regop_42)) != 0)
+ goto err;
+
+err:
+ return (ret);
+}
+
+int
+env_init_print_48(env, dtabp)
+ ENV *env;
+ DB_DISTAB *dtabp;
+{
+ int ret;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_pg_sort_44_print, DB___db_pg_sort_44)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_addrem_42_print, DB___db_addrem_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __db_big_42_print, DB___db_big_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __bam_split_48_print, DB___bam_split_48)) != 0)
+ goto err;
+#ifdef HAVE_HASH
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __ham_insdel_42_print, DB___ham_insdel_42)) != 0)
+ goto err;
+ if ((ret = __db_add_recovery_int(env, dtabp,
+ __ham_replace_42_print, DB___ham_replace_42)) != 0)
+ goto err;
+#endif
+
+err:
+ return (ret);
+}
+
+int
+usage()
+{
+ fprintf(stderr, "usage: %s %s\n", progname,
+ "[-NrV] [-b file/offset] [-e file/offset] [-h home] [-P password]");
+ 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, DB_STR_A("5015",
+ "%s: version %d.%d doesn't match library version %d.%d\n",
+ "%s %d %d %d %d\n"), progname,
+ DB_VERSION_MAJOR, DB_VERSION_MINOR,
+ v_major, v_minor);
+ return (EXIT_FAILURE);
+ }
+ return (0);
+}
+
+/* Print an unknown, application-specific log record as best we can. */
+int
+db_printlog_print_app_record(dbenv, dbt, lsnp, op)
+ DB_ENV *dbenv;
+ DBT *dbt;
+ DB_LSN *lsnp;
+ db_recops op;
+{
+ u_int32_t i, rectype;
+ int ch;
+
+ DB_ASSERT(dbenv->env, op == DB_TXN_PRINT);
+
+ COMPQUIET(dbenv, NULL);
+ COMPQUIET(op, DB_TXN_PRINT);
+
+ /*
+ * Fetch the rectype, which always must be at the beginning of the
+ * record (if dispatching is to work at all).
+ */
+ memcpy(&rectype, dbt->data, sizeof(rectype));
+
+ /*
+ * Applications may wish to customize the output here based on the
+ * rectype. We just print the entire log record in the generic
+ * mixed-hex-and-printable format we use for binary data.
+ */
+ printf(DB_STR_A("5016",
+ "[%lu][%lu]application specific record: rec: %lu\n",
+ "%lu %lu %lu"), (u_long)lsnp->file, (u_long)lsnp->offset,
+ (u_long)rectype);
+ printf(DB_STR("5017", "\tdata: "));
+ for (i = 0; i < dbt->size; i++) {
+ ch = ((u_int8_t *)dbt->data)[i];
+ printf(isprint(ch) || ch == 0x0a ? "%c" : "%#x ", ch);
+ }
+ printf("\n\n");
+
+ return (0);
+}
+
+int
+open_rep_db(dbenv, dbpp, dbcp)
+ DB_ENV *dbenv;
+ DB **dbpp;
+ DBC **dbcp;
+{
+ int ret;
+
+ DB *dbp;
+ *dbpp = NULL;
+ *dbcp = NULL;
+
+ if ((ret = db_create(dbpp, dbenv, 0)) != 0) {
+ dbenv->err(dbenv, ret, "db_create");
+ return (ret);
+ }
+
+ dbp = *dbpp;
+ if ((ret = dbp->open(dbp, NULL,
+ REPDBNAME, NULL, DB_BTREE, DB_RDONLY, 0)) != 0) {
+ dbenv->err(dbenv, ret, "DB->open");
+ goto err;
+ }
+
+ if ((ret = dbp->cursor(dbp, NULL, dbcp, 0)) != 0) {
+ dbenv->err(dbenv, ret, "DB->cursor");
+ goto err;
+ }
+
+ return (0);
+
+err: if (*dbpp != NULL)
+ (void)(*dbpp)->close(*dbpp, 0);
+ return (ret);
+}
+
+/*
+ * lsn_arg --
+ * Parse a LSN argument.
+ */
+int
+lsn_arg(arg, lsnp)
+ char *arg;
+ DB_LSN *lsnp;
+{
+ u_long uval;
+ char *p;
+
+ /*
+ * Expected format is: lsn.file/lsn.offset.
+ */
+ if ((p = strchr(arg, '/')) == NULL)
+ return (1);
+ *p = '\0';
+
+ if (__db_getulong(NULL, progname, arg, 0, UINT32_MAX, &uval))
+ return (1);
+ lsnp->file = uval;
+ if (__db_getulong(NULL, progname, p + 1, 0, UINT32_MAX, &uval))
+ return (1);
+ lsnp->offset = uval;
+ return (0);
+}