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From e6f48ae9bff7b5dc8027d043aa1bffa53d507a42 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ale=C5=A1=20Mat=C4=9Bj?= <amatej@redhat.com>
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Date: Thu, 5 May 2022 12:44:27 +0200
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Subject: [PATCH] Use nanosec precision for timestamp of checksum cache
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(RhBug:2077864)
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= changelog =
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msg: Use nanosec precision for timestamp of checksum cache
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type: bugfix
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resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2077864
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---
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librepo/checksum.c | 7 +++++--
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tests/test_checksum.c | 6 +++++-
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2 files changed, 10 insertions(+), 3 deletions(-)
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diff --git a/librepo/checksum.c b/librepo/checksum.c
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index 6bba53c..d82cb5c 100644
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--- a/librepo/checksum.c
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+++ b/librepo/checksum.c
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@@ -18,6 +18,7 @@
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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+#define _POSIX_C_SOURCE 200809L
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#include <glib.h>
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#include <glib/gprintf.h>
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#include <assert.h>
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@@ -217,16 +218,18 @@ lr_checksum_fd_compare(LrChecksumType type,
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return FALSE;
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}
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- time_t timestamp = -1;
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+ long long timestamp = -1;
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if (caching) {
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struct stat st;
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if (fstat(fd, &st) == 0) {
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timestamp = st.st_mtime;
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+ timestamp *= 1000000000; //convert sec timestamp to nanosec timestamp
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+ timestamp += st.st_mtim.tv_nsec;
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}
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}
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- _cleanup_free_ gchar *timestamp_str = g_strdup_printf("%lli", (long long)timestamp);
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+ _cleanup_free_ gchar *timestamp_str = g_strdup_printf("%lli", timestamp);
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const char *type_str = lr_checksum_type_to_str(type);
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_cleanup_free_ gchar *timestamp_key = g_strconcat(XATTR_CHKSUM_PREFIX, "mtime", NULL);
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_cleanup_free_ gchar *checksum_key = g_strconcat(XATTR_CHKSUM_PREFIX, type_str, NULL);
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diff --git a/tests/test_checksum.c b/tests/test_checksum.c
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index cd28cd1..548f588 100644
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--- a/tests/test_checksum.c
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+++ b/tests/test_checksum.c
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@@ -1,3 +1,4 @@
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+#define _POSIX_C_SOURCE 200809L
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#define _GNU_SOURCE
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#include <errno.h>
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#include <stdlib.h>
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@@ -150,7 +151,10 @@ START_TEST(test_cached_checksum_matches)
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// stored timestamp matches the file mtime
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ret = stat(filename, &st);
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ck_assert_int_eq(ret, 0);
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- mtime_str = g_strdup_printf("%lli", (long long) st.st_mtime);
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+ long long timestamp = st.st_mtime;
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+ timestamp *= 1000000000; //convert sec timestamp to nanosec timestamp
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+ timestamp += st.st_mtim.tv_nsec;
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+ mtime_str = g_strdup_printf("%lli", timestamp);
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attr_ret = GETXATTR(filename, timestamp_key, &buf, sizeof(buf)-1);
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ck_assert(attr_ret != -1);
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buf[attr_ret] = 0;
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--
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2.36.1
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