Merging upstream version 1.37.0.

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

1 files changed, 30 insertions, 0 deletions

diff --git a/libnetdata/string/string.h b/libnetdata/string/string.h
new file mode 100644
index 000000000..cec44ebd9
--- /dev/null
+++ b/libnetdata/string/string.h
@@ -0,0 +1,30 @@
+
+#ifndef NETDATA_STRING_H
+#define NETDATA_STRING_H 1
+
+#include "../libnetdata.h"
+
+// ----------------------------------------------------------------------------
+// STRING implementation
+
+typedef struct netdata_string STRING;
+STRING *string_strdupz(const char *str);
+STRING *string_dup(STRING *string);
+void string_freez(STRING *string);
+size_t string_strlen(STRING *string);
+const char *string2str(STRING *string) NEVERNULL;
+
+// keep common prefix/suffix and replace everything else with [x]
+STRING *string_2way_merge(STRING *a, STRING *b);
+
+static inline int string_cmp(STRING *s1, STRING *s2) {
+    // STRINGs are deduplicated, so the same strings have the same pointer
+    // when they differ, we do the typical strcmp() comparison
+    return (s1 == s2)?0:strcmp(string2str(s1), string2str(s2));
+}
+
+void string_statistics(size_t *inserts, size_t *deletes, size_t *searches, size_t *entries, size_t *references, size_t *memory, size_t *duplications, size_t *releases);
+
+int string_unittest(size_t entries);
+
+#endif