Rename C++ header files to .hpp

[lttng-tools.git] / src / common / hashtable / hashtable.hpp

diff --git a/src/common/hashtable/hashtable.hpp b/src/common/hashtable/hashtable.hpp
new file mode 100644 (file)
index 0000000..bd5cb94
--- /dev/null
+++ b/src/common/hashtable/hashtable.hpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2011 EfficiOS Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#ifndef _LTT_HT_H
+#define _LTT_HT_H
+
+#include <urcu.h>
+#include <stdint.h>
+
+#include <common/macros.hpp>
+#include <lttng/lttng-export.h>
+#include <urcu/rculfhash.h>
+
+LTTNG_EXPORT extern unsigned long lttng_ht_seed;
+
+typedef unsigned long (*hash_fct_type)(const void *_key, unsigned long seed);
+typedef cds_lfht_match_fct hash_match_fct;
+
+enum lttng_ht_type {
+       LTTNG_HT_TYPE_STRING,
+       LTTNG_HT_TYPE_ULONG,
+       LTTNG_HT_TYPE_U64,
+       LTTNG_HT_TYPE_TWO_U64,
+};
+
+struct lttng_ht {
+       struct cds_lfht *ht;
+       cds_lfht_match_fct match_fct;
+       hash_fct_type hash_fct;
+};
+
+struct lttng_ht_iter {
+       struct cds_lfht_iter iter;
+};
+
+struct lttng_ht_node_str {
+       char *key;
+       struct cds_lfht_node node;
+       struct rcu_head head;
+};
+
+struct lttng_ht_node_ulong {
+       unsigned long key;
+       struct cds_lfht_node node;
+       struct rcu_head head;
+};
+
+struct lttng_ht_node_u64 {
+       uint64_t key;
+       struct cds_lfht_node node;
+       struct rcu_head head;
+};
+
+struct lttng_ht_two_u64 {
+       uint64_t key1;
+       uint64_t key2;
+};
+
+struct lttng_ht_node_two_u64 {
+       struct lttng_ht_two_u64 key;
+       struct cds_lfht_node node;
+       struct rcu_head head;
+};
+
+/* Hashtable new and destroy */
+struct lttng_ht *lttng_ht_new(unsigned long size, enum lttng_ht_type type);
+void lttng_ht_destroy(struct lttng_ht *ht);
+
+/* Specialized node init and free functions */
+void lttng_ht_node_init_str(struct lttng_ht_node_str *node, char *key);
+void lttng_ht_node_init_ulong(struct lttng_ht_node_ulong *node,
+               unsigned long key);
+void lttng_ht_node_init_u64(struct lttng_ht_node_u64 *node,
+               uint64_t key);
+void lttng_ht_node_init_two_u64(struct lttng_ht_node_two_u64 *node,
+               uint64_t key1, uint64_t key2);
+void lttng_ht_node_free_str(struct lttng_ht_node_str *node);
+void lttng_ht_node_free_ulong(struct lttng_ht_node_ulong *node);
+void lttng_ht_node_free_u64(struct lttng_ht_node_u64 *node);
+void lttng_ht_node_free_two_u64(struct lttng_ht_node_two_u64 *node);
+
+void lttng_ht_lookup(struct lttng_ht *ht, const void *key,
+               struct lttng_ht_iter *iter);
+
+/* Specialized add unique functions */
+void lttng_ht_add_unique_str(struct lttng_ht *ht,
+               struct lttng_ht_node_str *node);
+void lttng_ht_add_unique_ulong(struct lttng_ht *ht,
+               struct lttng_ht_node_ulong *node);
+void lttng_ht_add_unique_u64(struct lttng_ht *ht,
+               struct lttng_ht_node_u64 *node);
+void lttng_ht_add_unique_two_u64(struct lttng_ht *ht,
+               struct lttng_ht_node_two_u64 *node);
+struct lttng_ht_node_ulong *lttng_ht_add_replace_ulong(
+               struct lttng_ht *ht, struct lttng_ht_node_ulong *node);
+struct lttng_ht_node_u64 *lttng_ht_add_replace_u64(
+               struct lttng_ht *ht, struct lttng_ht_node_u64 *node);
+void lttng_ht_add_str(struct lttng_ht *ht,
+               struct lttng_ht_node_str *node);
+void lttng_ht_add_ulong(struct lttng_ht *ht,
+               struct lttng_ht_node_ulong *node);
+void lttng_ht_add_u64(struct lttng_ht *ht,
+               struct lttng_ht_node_u64 *node);
+
+int lttng_ht_del(struct lttng_ht *ht, struct lttng_ht_iter *iter);
+
+void lttng_ht_get_first(struct lttng_ht *ht,
+               struct lttng_ht_iter *iter);
+void lttng_ht_get_next(struct lttng_ht *ht, struct lttng_ht_iter *iter);
+
+unsigned long lttng_ht_get_count(struct lttng_ht *ht);
+
+struct lttng_ht_node_str *lttng_ht_iter_get_node_str(
+               struct lttng_ht_iter *iter);
+struct lttng_ht_node_ulong *lttng_ht_iter_get_node_ulong(
+               struct lttng_ht_iter *iter);
+struct lttng_ht_node_u64 *lttng_ht_iter_get_node_u64(
+               struct lttng_ht_iter *iter);
+struct lttng_ht_node_two_u64 *lttng_ht_iter_get_node_two_u64(
+               struct lttng_ht_iter *iter);
+
+#endif /* _LTT_HT_H */