6693e9d8e5
(uint64_t value, const char *description, const char *printvalue) to: (const char *description, const char *printvalue, uint64_t value) Don't bother retrieving the key when printing the statistics, we don't much care about it. Minor cleanup of the docs to match.
83 lines
1.7 KiB
C
83 lines
1.7 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 2008-2011 WiredTiger, Inc.
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* All rights reserved.
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*
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* ex_stat.c
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* This is an example demonstrating how to query a database's statistics.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wiredtiger.h>
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int print_cursor(WT_CURSOR *);
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int print_database_stats(WT_SESSION *);
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int print_file_stats(WT_SESSION *);
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const char *home = "WT_TEST";
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int
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print_cursor(WT_CURSOR *cursor)
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{
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const char *desc, *pvalue;
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uint64_t value;
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int ret;
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while (
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(ret = cursor->next(cursor)) == 0 &&
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(ret = cursor->get_value(cursor, &desc, &pvalue, &value)) == 0)
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printf("%s=%s\n", desc, pvalue);
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return (ret == WT_NOTFOUND ? 0 : ret);
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}
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int
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print_database_stats(WT_SESSION *session)
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{
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WT_CURSOR *cursor;
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int ret;
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if ((ret = session->open_cursor(session,
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"statistics:", NULL, NULL, &cursor)) != 0)
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return (ret);
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return (print_cursor(cursor));
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}
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int
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print_file_stats(WT_SESSION *session)
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{
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WT_CURSOR *cursor;
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int ret;
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if ((ret = session->open_cursor(session,
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"statistics:file:foo.wt", NULL, NULL, &cursor)) != 0)
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return (ret);
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return (print_cursor(cursor));
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}
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int
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main(void)
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{
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WT_CONNECTION *conn;
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WT_SESSION *session;
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int ret;
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if ((ret = wiredtiger_open(home, NULL, "create", &conn)) != 0 ||
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(ret = conn->open_session(conn, NULL, NULL, &session)) != 0)
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fprintf(stderr, "Error connecting to %s: %s\n",
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home, wiredtiger_strerror(ret));
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/* Note: further error checking omitted for clarity. */
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ret = print_database_stats(session);
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ret = print_file_stats(session);
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return (conn->close(conn, NULL) == 0 ? ret : EXIT_FAILURE);
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}
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