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-rw-r--r--src/journal/journal-file.c52
-rw-r--r--src/journal/journal-file.h1
-rw-r--r--src/journal/sd-journal.c86
3 files changed, 54 insertions, 85 deletions
diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index 7b9815c69f..35f3ea92a4 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -1949,6 +1949,58 @@ void journal_file_save_location(JournalFile *f, direction_t direction, Object *o
f->current_xor_hash = le64toh(o->entry.xor_hash);
}
+int journal_file_compare_locations(JournalFile *af, JournalFile *bf) {
+ assert(af);
+ assert(bf);
+ assert(af->location_type == LOCATION_SEEK);
+ assert(bf->location_type == LOCATION_SEEK);
+
+ /* If contents and timestamps match, these entries are
+ * identical, even if the seqnum does not match */
+ if (sd_id128_equal(af->current_boot_id, bf->current_boot_id) &&
+ af->current_monotonic == bf->current_monotonic &&
+ af->current_realtime == bf->current_realtime &&
+ af->current_xor_hash == bf->current_xor_hash)
+ return 0;
+
+ if (sd_id128_equal(af->header->seqnum_id, bf->header->seqnum_id)) {
+
+ /* If this is from the same seqnum source, compare
+ * seqnums */
+ if (af->current_seqnum < bf->current_seqnum)
+ return -1;
+ if (af->current_seqnum > bf->current_seqnum)
+ return 1;
+
+ /* Wow! This is weird, different data but the same
+ * seqnums? Something is borked, but let's make the
+ * best of it and compare by time. */
+ }
+
+ if (sd_id128_equal(af->current_boot_id, bf->current_boot_id)) {
+
+ /* If the boot id matches, compare monotonic time */
+ if (af->current_monotonic < bf->current_monotonic)
+ return -1;
+ if (af->current_monotonic > bf->current_monotonic)
+ return 1;
+ }
+
+ /* Otherwise, compare UTC time */
+ if (af->current_realtime < bf->current_realtime)
+ return -1;
+ if (af->current_realtime > bf->current_realtime)
+ return 1;
+
+ /* Finally, compare by contents */
+ if (af->current_xor_hash < bf->current_xor_hash)
+ return -1;
+ if (af->current_xor_hash > bf->current_xor_hash)
+ return 1;
+
+ return 0;
+}
+
int journal_file_next_entry(
JournalFile *f,
Object *o, uint64_t p,
diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 2bdfff782e..8084176195 100644
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -197,6 +197,7 @@ int journal_file_find_field_object_with_hash(JournalFile *f, const void *field,
void journal_file_reset_location(JournalFile *f);
void journal_file_save_location(JournalFile *f, direction_t direction, Object *o, uint64_t offset);
+int journal_file_compare_locations(JournalFile *af, JournalFile *bf);
int journal_file_next_entry(JournalFile *f, Object *o, uint64_t p, direction_t direction, Object **ret, uint64_t *offset);
int journal_file_next_entry_for_data(JournalFile *f, Object *o, uint64_t p, uint64_t data_offset, direction_t direction, Object **ret, uint64_t *offset);
diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
index 5a00cb0c94..7ca0f839c6 100644
--- a/src/journal/sd-journal.c
+++ b/src/journal/sd-journal.c
@@ -412,90 +412,6 @@ _public_ void sd_journal_flush_matches(sd_journal *j) {
detach_location(j);
}
-static int compare_entry_order(JournalFile *af, Object *_ao,
- JournalFile *bf, uint64_t bp) {
-
- uint64_t a, b;
- Object *ao, *bo;
- int r;
-
- assert(af);
- assert(bf);
- assert(_ao);
-
- /* The mmap cache might invalidate the object from the first
- * file if we look at the one from the second file. Hence
- * temporarily copy the header of the first one, and look at
- * that only. */
- ao = alloca(offsetof(EntryObject, items));
- memcpy(ao, _ao, offsetof(EntryObject, items));
-
- r = journal_file_move_to_object(bf, OBJECT_ENTRY, bp, &bo);
- if (r < 0)
- return strcmp(af->path, bf->path);
-
- /* We operate on two different files here, hence we can access
- * two objects at the same time, which we normally can't.
- *
- * If contents and timestamps match, these entries are
- * identical, even if the seqnum does not match */
-
- if (sd_id128_equal(ao->entry.boot_id, bo->entry.boot_id) &&
- ao->entry.monotonic == bo->entry.monotonic &&
- ao->entry.realtime == bo->entry.realtime &&
- ao->entry.xor_hash == bo->entry.xor_hash)
- return 0;
-
- if (sd_id128_equal(af->header->seqnum_id, bf->header->seqnum_id)) {
-
- /* If this is from the same seqnum source, compare
- * seqnums */
- a = le64toh(ao->entry.seqnum);
- b = le64toh(bo->entry.seqnum);
-
- if (a < b)
- return -1;
- if (a > b)
- return 1;
-
- /* Wow! This is weird, different data but the same
- * seqnums? Something is borked, but let's make the
- * best of it and compare by time. */
- }
-
- if (sd_id128_equal(ao->entry.boot_id, bo->entry.boot_id)) {
-
- /* If the boot id matches, compare monotonic time */
- a = le64toh(ao->entry.monotonic);
- b = le64toh(bo->entry.monotonic);
-
- if (a < b)
- return -1;
- if (a > b)
- return 1;
- }
-
- /* Otherwise, compare UTC time */
- a = le64toh(ao->entry.realtime);
- b = le64toh(bo->entry.realtime);
-
- if (a < b)
- return -1;
- if (a > b)
- return 1;
-
- /* Finally, compare by contents */
- a = le64toh(ao->entry.xor_hash);
- b = le64toh(bo->entry.xor_hash);
-
- if (a < b)
- return -1;
- if (a > b)
- return 1;
-
- return 0;
-}
-
_pure_ static int compare_with_location(JournalFile *af, Object *ao, Location *l) {
uint64_t a;
@@ -898,7 +814,7 @@ static int real_journal_next(sd_journal *j, direction_t direction) {
else {
int k;
- k = compare_entry_order(f, o, new_file, new_offset);
+ k = journal_file_compare_locations(f, new_file);
found = direction == DIRECTION_DOWN ? k < 0 : k > 0;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-02 02:12:27 +0000