Adding upstream version 2.7.6.upstream/2.7.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 64 insertions, 0 deletions

diff --git a/src/utils/knotc/estimator.h b/src/utils/knotc/estimator.h
new file mode 100644
index 0000000..ee05d5f
--- /dev/null
+++ b/src/utils/knotc/estimator.h
@@ -0,0 +1,64 @@
+/*  Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "contrib/qp-trie/trie.h"
+#include "libzscanner/scanner.h"
+
+/*!
+ * \brief Memory estimation context.
+ */
+typedef struct {
+	trie_t *node_table;  /*!< Same trie is in actual zone. */
+	size_t rdata_size;   /*!< Estimated RDATA size. */
+	size_t dname_size;   /*!< Estimated DNAME size. */
+	size_t node_size;    /*!< Estimated node size. */
+	size_t record_count; /*!< Total record count for zone. */
+} zone_estim_t;
+
+/*!
+ * \brief Size counting malloc wrapper.
+ *
+ * \param ctx Data for malloc wrapper.
+ * \param len Size to allocate.
+ *
+ * \retval Alloc'd data on succes.
+ * \retval NULL on error.
+ */
+void *estimator_malloc(void *ctx, size_t len);
+
+/*!
+ * \brief Size counting free wrapper.
+ *
+ * \param p Data to free.
+ */
+void estimator_free(void *p);
+
+/*!
+ * \brief For use with scanner - counts memsize of RRSets.
+ *
+ * \param scanner Scanner context.
+ */
+void estimator_rrset_memsize_wrap(zs_scanner_t *scanner);
+
+/*!
+ * \brief Cleanup function for use with trie.
+ *
+ * \param val Data to free.
+ * \param data Unused variable.
+ */
+int estimator_free_trie_node(trie_val_t *val, void *data);