Update Mroonga to the latest version on 2017-10-10T23:15:25+0900

storage/mroonga/vendor/groonga/lib/scanner.c

@@ -0,0 +1,73 @@
+/* -*- c-basic-offset: 2 -*- */
+/*
+  Copyright(C) 2015 Brazil
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License version 2.1 as published by the Free Software Foundation.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include "grn_scanner.h"
+
+grn_scanner *
+grn_scanner_open(grn_ctx *ctx,
+                 grn_obj *expr,
+                 grn_operator op,
+                 grn_bool record_exist)
+{
+  grn_scanner *scanner;
+
+  scanner = GRN_MALLOC(sizeof(grn_scanner));
+  if (!scanner) {
+    return NULL;
+  }
+
+  scanner->source_expr = expr;
+  scanner->expr = grn_expr_rewrite(ctx, expr);
+  if (!scanner->expr) {
+    scanner->expr = expr;
+  }
+
+  scanner->sis = grn_scan_info_build(ctx,
+                                     scanner->expr,
+                                     &(scanner->n_sis),
+                                     op,
+                                     record_exist);
+  if (!scanner->sis) {
+    grn_scanner_close(ctx, scanner);
+    return NULL;
+  }
+
+  return scanner;
+}
+
+void
+grn_scanner_close(grn_ctx *ctx, grn_scanner *scanner)
+{
+  if (!scanner) {
+    return;
+  }
+
+  if (scanner->sis) {
+    int i;
+    for (i = 0; i < scanner->n_sis; i++) {
+      grn_scan_info_close(ctx, scanner->sis[i]);
+    }
+    GRN_FREE(scanner->sis);
+  }
+
+  if (scanner->expr != scanner->source_expr) {
+    grn_obj_close(ctx, scanner->expr);
+  }
+
+  GRN_FREE(scanner);
+}