Adding upstream version 255.4.upstream/255.4

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

1 files changed, 39 insertions, 0 deletions

diff --git a/src/basic/strbuf.h b/src/basic/strbuf.h
new file mode 100644
index 0000000..6187c08
--- /dev/null
+++ b/src/basic/strbuf.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+
+#include "macro.h"
+
+struct strbuf {
+        char *buf;
+        size_t len;
+        struct strbuf_node *root;
+
+        size_t nodes_count;
+        size_t in_count;
+        size_t in_len;
+        size_t dedup_len;
+        size_t dedup_count;
+};
+
+struct strbuf_node {
+        size_t value_off;
+        size_t value_len;
+
+        struct strbuf_child_entry *children;
+        uint8_t children_count;
+};
+
+struct strbuf_child_entry {
+        uint8_t c;
+        struct strbuf_node *child;
+};
+
+struct strbuf* strbuf_new(void);
+ssize_t strbuf_add_string(struct strbuf *str, const char *s, size_t len);
+void strbuf_complete(struct strbuf *str);
+struct strbuf* strbuf_free(struct strbuf *str);
+DEFINE_TRIVIAL_CLEANUP_FUNC(struct strbuf*, strbuf_free);