Vector*
PolyCompiler_Highlight_Spans_IMP(PolyCompiler *self, Searcher *searcher,
DocVector *doc_vec, String *field) {
PolyCompilerIVARS *const ivars = PolyCompiler_IVARS(self);
Vector *spans = Vec_new(0);
for (size_t i = 0, max = Vec_Get_Size(ivars->children); i < max; i++) {
Compiler *child = (Compiler*)Vec_Fetch(ivars->children, i);
Vector *child_spans = Compiler_Highlight_Spans(child, searcher,
doc_vec, field);
if (child_spans) {
Vec_Push_All(spans, child_spans);
DECREF(child_spans);
}
}
return spans;
}
HeatMap*
HeatMap_init(HeatMap *self, Vector *spans, uint32_t window) {
HeatMapIVARS *const ivars = HeatMap_IVARS(self);
Vector *spans_copy = Vec_Clone(spans);
Vector *spans_plus_boosts;
ivars->spans = NULL;
ivars->window = window;
Vec_Sort(spans_copy);
spans_plus_boosts = HeatMap_Generate_Proximity_Boosts(self, spans_copy);
Vec_Push_All(spans_plus_boosts, spans_copy);
Vec_Sort(spans_plus_boosts);
ivars->spans = HeatMap_Flatten_Spans(self, spans_plus_boosts);
DECREF(spans_plus_boosts);
DECREF(spans_copy);
return self;
}
static Query*
S_compose_subquery(QueryParser *self, Vector *elems, bool enclosed) {
const int32_t default_occur = QParser_IVARS(self)->default_occur;
Query *retval;
if (Vec_Get_Size(elems) == 0) {
// No elems means no query. Maybe the search string was something
// like 'NOT AND'
if (enclosed) {
retval = default_occur == SHOULD
? QParser_Make_OR_Query(self, NULL)
: QParser_Make_AND_Query(self, NULL);
}
else {
retval = (Query*)NoMatchQuery_new();
}
}
else if (Vec_Get_Size(elems) == 1 && !enclosed) {
ParserElem *elem = (ParserElem*)Vec_Fetch(elems, 0);
Query *query = (Query*)ParserElem_As(elem, QUERY);
retval = (Query*)INCREF(query);
}
else {
uint32_t num_elems = Vec_Get_Size(elems);
Vector *required = Vec_new(num_elems);
Vector *optional = Vec_new(num_elems);
Vector *negated = Vec_new(num_elems);
Query *req_query = NULL;
Query *opt_query = NULL;
// Demux elems into bins.
for (uint32_t i = 0; i < num_elems; i++) {
ParserElem *elem = (ParserElem*)Vec_Fetch(elems, i);
if (ParserElem_Required(elem)) {
Vec_Push(required, INCREF(ParserElem_As(elem, QUERY)));
}
else if (ParserElem_Optional(elem)) {
Vec_Push(optional, INCREF(ParserElem_As(elem, QUERY)));
}
else if (ParserElem_Negated(elem)) {
Vec_Push(negated, INCREF(ParserElem_As(elem, QUERY)));
}
}
uint32_t num_required = Vec_Get_Size(required);
uint32_t num_negated = Vec_Get_Size(negated);
uint32_t num_optional = Vec_Get_Size(optional);
// Bind all mandatory matchers together in one Query.
if (num_required || num_negated) {
if (enclosed || num_required + num_negated > 1) {
Vector *children = Vec_Clone(required);
Vec_Push_All(children, negated);
req_query = QParser_Make_AND_Query(self, children);
DECREF(children);
}
else if (num_required) {
req_query = (Query*)INCREF(Vec_Fetch(required, 0));
}
else if (num_negated) {
req_query = (Query*)INCREF(Vec_Fetch(negated, 0));
}
}
// Bind all optional matchers together in one Query.
if (num_optional) {
if (!enclosed && num_optional == 1) {
opt_query = (Query*)INCREF(Vec_Fetch(optional, 0));
}
else {
opt_query = QParser_Make_OR_Query(self, optional);
}
}
// Unify required and optional.
if (req_query && opt_query) {
if (num_required) { // not just negated elems
retval = QParser_Make_Req_Opt_Query(self, req_query,
opt_query);
}
else {
// req_query has only negated queries.
Vector *children = Vec_new(2);
Vec_Push(children, INCREF(req_query));
Vec_Push(children, INCREF(opt_query));
retval = QParser_Make_AND_Query(self, children);
DECREF(children);
}
}
else if (opt_query) {
// Only optional elems.
retval = (Query*)INCREF(opt_query);
}
else if (req_query) {
// Only required elems.
retval = (Query*)INCREF(req_query);
}
else {
retval = NULL; // kill "uninitialized" compiler warning
THROW(ERR, "Unexpected error");
}
DECREF(opt_query);
DECREF(req_query);
DECREF(negated);
DECREF(optional);
DECREF(required);
}
return retval;
}
static void
S_discover_unused(FilePurger *self, Vector **purgables_ptr,
Vector **snapshots_ptr) {
FilePurgerIVARS *const ivars = FilePurger_IVARS(self);
Folder *folder = ivars->folder;
DirHandle *dh = Folder_Open_Dir(folder, NULL);
if (!dh) { RETHROW(INCREF(Err_get_error())); }
Vector *spared = Vec_new(1);
Vector *snapshots = Vec_new(1);
String *snapfile = NULL;
// Start off with the list of files in the current snapshot.
if (ivars->snapshot) {
Vector *entries = Snapshot_List(ivars->snapshot);
Vector *referenced = S_find_all_referenced(folder, entries);
Vec_Push_All(spared, referenced);
DECREF(entries);
DECREF(referenced);
snapfile = Snapshot_Get_Path(ivars->snapshot);
if (snapfile) { Vec_Push(spared, INCREF(snapfile)); }
}
Hash *candidates = Hash_new(64);
while (DH_Next(dh)) {
String *entry = DH_Get_Entry(dh);
if (Str_Starts_With_Utf8(entry, "snapshot_", 9)
&& Str_Ends_With_Utf8(entry, ".json", 5)
&& (!snapfile || !Str_Equals(entry, (Obj*)snapfile))
) {
Snapshot *snapshot
= Snapshot_Read_File(Snapshot_new(), folder, entry);
Lock *lock
= IxManager_Make_Snapshot_Read_Lock(ivars->manager, entry);
Vector *snap_list = Snapshot_List(snapshot);
Vector *referenced = S_find_all_referenced(folder, snap_list);
// DON'T obtain the lock -- only see whether another
// entity holds a lock on the snapshot file.
if (lock) {
Lock_Clear_Stale(lock);
}
if (lock && Lock_Is_Locked(lock)) {
// The snapshot file is locked, which means someone's using
// that version of the index -- protect all of its entries.
uint32_t new_size = Vec_Get_Size(spared)
+ Vec_Get_Size(referenced)
+ 1;
Vec_Grow(spared, new_size);
Vec_Push(spared, (Obj*)Str_Clone(entry));
Vec_Push_All(spared, referenced);
}
else {
// No one's using this snapshot, so all of its entries are
// candidates for deletion.
for (uint32_t i = 0, max = Vec_Get_Size(referenced); i < max; i++) {
String *file = (String*)Vec_Fetch(referenced, i);
Hash_Store(candidates, file, (Obj*)CFISH_TRUE);
}
Vec_Push(snapshots, INCREF(snapshot));
}
DECREF(referenced);
DECREF(snap_list);
DECREF(snapshot);
DECREF(lock);
}
DECREF(entry);
}
DECREF(dh);
// Clean up after a dead segment consolidation.
S_zap_dead_merge(self, candidates);
// Eliminate any current files from the list of files to be purged.
for (uint32_t i = 0, max = Vec_Get_Size(spared); i < max; i++) {
String *filename = (String*)Vec_Fetch(spared, i);
DECREF(Hash_Delete(candidates, filename));
}
// Pass back purgables and Snapshots.
*purgables_ptr = Hash_Keys(candidates);
*snapshots_ptr = snapshots;
DECREF(candidates);
DECREF(spared);
}
