X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fjournal%2Fsd-journal.c;h=89cab3733128d351901690b2a9d8c45f71dabcbb;hb=b29ddfcb389127cf00ab41447a721e479fe15713;hp=0fefe2bc6e38ee03b879ad3cf4aeefa7c69bacc0;hpb=7943f42275025e1b6642b580b19b24dfab8dee61;p=elogind.git diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c index 0fefe2bc6..89cab3733 100644 --- a/src/journal/sd-journal.c +++ b/src/journal/sd-journal.c @@ -412,60 +412,51 @@ _public_ void sd_journal_flush_matches(sd_journal *j) { detach_location(j); } -_pure_ static int compare_with_location(JournalFile *af, Object *ao, Location *l) { - uint64_t a; - - assert(af); - assert(ao); +_pure_ static int compare_with_location(JournalFile *f, Location *l) { + assert(f); assert(l); + assert(f->location_type == LOCATION_SEEK); assert(l->type == LOCATION_DISCRETE || l->type == LOCATION_SEEK); if (l->monotonic_set && - sd_id128_equal(ao->entry.boot_id, l->boot_id) && + sd_id128_equal(f->current_boot_id, l->boot_id) && l->realtime_set && - le64toh(ao->entry.realtime) == l->realtime && + f->current_realtime == l->realtime && l->xor_hash_set && - le64toh(ao->entry.xor_hash) == l->xor_hash) + f->current_xor_hash == l->xor_hash) return 0; if (l->seqnum_set && - sd_id128_equal(af->header->seqnum_id, l->seqnum_id)) { - - a = le64toh(ao->entry.seqnum); + sd_id128_equal(f->header->seqnum_id, l->seqnum_id)) { - if (a < l->seqnum) + if (f->current_seqnum < l->seqnum) return -1; - if (a > l->seqnum) + if (f->current_seqnum > l->seqnum) return 1; } if (l->monotonic_set && - sd_id128_equal(ao->entry.boot_id, l->boot_id)) { + sd_id128_equal(f->current_boot_id, l->boot_id)) { - a = le64toh(ao->entry.monotonic); - - if (a < l->monotonic) + if (f->current_monotonic < l->monotonic) return -1; - if (a > l->monotonic) + if (f->current_monotonic > l->monotonic) return 1; } if (l->realtime_set) { - a = le64toh(ao->entry.realtime); - - if (a < l->realtime) + if (f->current_realtime < l->realtime) return -1; - if (a > l->realtime) + if (f->current_realtime > l->realtime) return 1; } if (l->xor_hash_set) { - a = le64toh(ao->entry.xor_hash); - if (a < l->xor_hash) + if (f->current_xor_hash < l->xor_hash) return -1; - if (a > l->xor_hash) + if (f->current_xor_hash > l->xor_hash) return 1; } @@ -681,9 +672,9 @@ static int find_location_with_matches( /* No matches is simple */ if (j->current_location.type == LOCATION_HEAD) - return journal_file_next_entry(f, NULL, 0, DIRECTION_DOWN, ret, offset); + return journal_file_next_entry(f, 0, DIRECTION_DOWN, ret, offset); if (j->current_location.type == LOCATION_TAIL) - return journal_file_next_entry(f, NULL, 0, DIRECTION_UP, ret, offset); + return journal_file_next_entry(f, 0, DIRECTION_UP, ret, offset); if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id)) return journal_file_move_to_entry_by_seqnum(f, j->current_location.seqnum, direction, ret, offset); if (j->current_location.monotonic_set) { @@ -694,7 +685,7 @@ static int find_location_with_matches( if (j->current_location.realtime_set) return journal_file_move_to_entry_by_realtime(f, j->current_location.realtime, direction, ret, offset); - return journal_file_next_entry(f, NULL, 0, direction, ret, offset); + return journal_file_next_entry(f, 0, direction, ret, offset); } else return find_location_for_match(j, j->level0, f, direction, ret, offset); } @@ -706,25 +697,22 @@ static int next_with_matches( Object **ret, uint64_t *offset) { - Object *c; - uint64_t cp; - assert(j); assert(f); assert(ret); assert(offset); - c = *ret; - cp = *offset; - /* No matches is easy. We simple advance the file * pointer by one. */ if (!j->level0) - return journal_file_next_entry(f, c, cp, direction, ret, offset); + return journal_file_next_entry(f, f->current_offset, direction, ret, offset); /* If we have a match then we look for the next matching entry * with an offset at least one step larger */ - return next_for_match(j, j->level0, f, direction == DIRECTION_DOWN ? cp+1 : cp-1, direction, ret, offset); + return next_for_match(j, j->level0, f, + direction == DIRECTION_DOWN ? f->current_offset + 1 + : f->current_offset - 1, + direction, ret, offset); } static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direction) { @@ -745,22 +733,19 @@ static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direc /* LOCATION_SEEK here means we did the work in a previous * iteration and the current location already points to a * candidate entry. */ - if (f->location_type == LOCATION_SEEK) - return 1; - - cp = f->current_offset; - - r = journal_file_move_to_object(f, OBJECT_ENTRY, cp, &c); - if (r < 0) - return r; + if (f->location_type != LOCATION_SEEK) { + r = next_with_matches(j, f, direction, &c, &cp); + if (r <= 0) + return r; - r = next_with_matches(j, f, direction, &c, &cp); - if (r <= 0) - return r; + journal_file_save_location(f, direction, c, cp); + } } else { r = find_location_with_matches(j, f, direction, &c, &cp); if (r <= 0) return r; + + journal_file_save_location(f, direction, c, cp); } /* OK, we found the spot, now let's advance until an entry @@ -775,20 +760,20 @@ static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direc if (j->current_location.type == LOCATION_DISCRETE) { int k; - k = compare_with_location(f, c, &j->current_location); + k = compare_with_location(f, &j->current_location); found = direction == DIRECTION_DOWN ? k > 0 : k < 0; } else found = true; - if (found) { - journal_file_save_location(f, direction, c, cp); + if (found) return 1; - } r = next_with_matches(j, f, direction, &c, &cp); if (r <= 0) return r; + + journal_file_save_location(f, direction, c, cp); } }