Merging upstream version 1.40.0.

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

1 files changed, 60 insertions, 0 deletions

diff --git a/libnetdata/gorilla/gorilla.h b/libnetdata/gorilla/gorilla.h
new file mode 100644
index 000000000..12bec42c0
--- /dev/null
+++ b/libnetdata/gorilla/gorilla.h
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef GORILLA_H
+#define GORILLA_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Low-level public API
+*/
+
+// 32-bit API
+
+typedef struct bit_code_writer_u32 bit_code_writer_u32_t;
+typedef struct bit_code_reader_u32 bit_code_reader_u32_t;
+
+void bit_code_writer_u32_init(bit_code_writer_u32_t *bcw, uint32_t *buffer, uint32_t capacity);
+bool bit_code_writer_u32_write(bit_code_writer_u32_t *bcw, const uint32_t number);
+bool bit_code_writer_u32_flush(bit_code_writer_u32_t *bcw);
+
+void bit_code_reader_u32_init(bit_code_reader_u32_t *bcr, uint32_t *buffer, uint32_t capacity);
+bool bit_code_reader_u32_read(bit_code_reader_u32_t *bcr, uint32_t *number);
+bool bit_code_reader_u32_info(bit_code_reader_u32_t *bcr, uint32_t *num_entries_written,
+                                                          uint64_t *num_bits_written);
+
+// 64-bit API
+
+typedef struct bit_code_writer_u64 bit_code_writer_u64_t;
+typedef struct bit_code_reader_u64 bit_code_reader_u64_t;
+
+void bit_code_writer_u64_init(bit_code_writer_u64_t *bcw, uint64_t *buffer, uint64_t capacity);
+bool bit_code_writer_u64_write(bit_code_writer_u64_t *bcw, const uint64_t number);
+bool bit_code_writer_u64_flush(bit_code_writer_u64_t *bcw);
+
+void bit_code_reader_u64_init(bit_code_reader_u64_t *bcr, uint64_t *buffer, uint64_t capacity);
+bool bit_code_reader_u64_read(bit_code_reader_u64_t *bcr, uint64_t *number);
+bool bit_code_reader_u64_info(bit_code_reader_u64_t *bcr, uint64_t *num_entries_written,
+                                                          uint64_t *num_bits_written);
+
+/*
+ * High-level public API
+*/
+
+size_t gorilla_encode_u32(uint32_t *dst, size_t dst_len, const uint32_t *src, size_t src_len);
+size_t gorilla_decode_u32(uint32_t *dst, size_t dst_len, const uint32_t *src, size_t src_len);
+
+size_t gorilla_encode_u64(uint64_t *dst, size_t dst_len, const uint64_t *src, size_t src_len);
+size_t gorilla_decode_u64(uint64_t *dst, size_t dst_len, const uint64_t *src, size_t src_len);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GORILLA_H */