meta: add compress module for (de)compressing data

compress/include/blue/compress/compressor.h

@@ -0,0 +1,33 @@
+#ifndef BLUELIB_COMPRESS_COMPRESSOR_H_
+#define BLUELIB_COMPRESS_COMPRESSOR_H_
+
+#include <blue/core/misc.h>
+#include <blue/core/status.h>
+#include <stdbool.h>
+
+struct b_ringbuffer;
+struct b_compression_function;
+
+typedef struct b_compressor b_compressor;
+
+typedef enum b_compressor_mode {
+	B_COMPRESSOR_MODE_COMPRESS,
+	B_COMPRESSOR_MODE_DECOMPRESS,
+} b_compressor_mode;
+
+BLUE_API b_status b_compressor_create(
+	const struct b_compression_function *func, b_compressor_mode mode,
+	struct b_ringbuffer *inbuf, struct b_ringbuffer *outbuf,
+	b_compressor **out);
+BLUE_API b_status b_compressor_destroy(b_compressor *compressor);
+
+BLUE_API b_status b_compressor_get_buffer_size(
+	const b_compressor *compressor, size_t *inbuf_size, size_t *outbuf_size);
+
+BLUE_API b_status b_compressor_compress(b_compressor *compressor);
+BLUE_API b_status b_compressor_compress_end(b_compressor *compressor);
+BLUE_API b_status b_compressor_decompress(b_compressor *compressor);
+BLUE_API b_status b_compressor_reset(b_compressor *compressor);
+BLUE_API bool b_compressor_eof(const b_compressor *compressor);
+
+#endif

compress/include/blue/compress/function.h

@@ -0,0 +1,22 @@
+#ifndef BLUELIB_COMPRESS_FUNCTION_H_
+#define BLUELIB_COMPRESS_FUNCTION_H_
+
+#include <blue/core/misc.h>
+#include <blue/core/status.h>
+
+enum b_compressor_mode;
+
+typedef struct b_compression_function b_compression_function;
+
+typedef enum b_compression_function_id {
+	B_COMPRESSOR_FUNCTION_NONE = 0,
+	B_COMPRESSOR_FUNCTION_ZSTD,
+} b_compression_function_id;
+
+BLUE_API const b_compression_function *b_compression_function_get_by_id(
+	b_compression_function_id id);
+BLUE_API b_status b_compression_function_get_buffer_size(
+	const b_compression_function *func, enum b_compressor_mode mode,
+	size_t *inbuf_size, size_t *outbuf_size);
+
+#endif