[Yunq] Create libyunq and move parsing code to it.

lib/yunq/CMakeLists.txt

@@ -0,0 +1,17 @@
+set(yunq_files
+  serialize.cpp
+  )
+
+add_library(yunq STATIC
+  ${yunq_files}
+  )
+
+target_link_libraries(yunq
+  glacier)
+
+target_include_directories(yunq
+  PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
+  PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/..")
+
+set_target_properties(yunq PROPERTIES
+  COMPILE_FLAGS "${CMAKE_CXX_FLAGS} ${BASE_COMPILE_FLAGS}")

lib/yunq/serialize.cpp

@@ -0,0 +1,23 @@
+#include "serialize.h"
+
+namespace yunq {
+
+glcr::Status CheckHeader(const glcr::ByteBuffer& buffer) {
+  // TODO: Check ident.
+  // TODO: Parse core size.
+  // TODO: Parse extension size.
+  // TODO: Check CRC32
+  // TODO: Parse options.
+  return glcr::Status::Ok();
+}
+
+void WriteHeader(glcr::ByteBuffer& bytes, uint64_t offset, uint32_t core_size,
+                 uint32_t extension_size) {
+  bytes.WriteAt<uint32_t>(
+      offset + 0, 0xDEADBEEF);  // TODO: Chose a more unique ident sequence.
+  bytes.WriteAt<uint32_t>(offset + 4, core_size);
+  bytes.WriteAt<uint32_t>(offset + 8, extension_size);
+  bytes.WriteAt<uint32_t>(offset + 12, 0);  // TODO: Calculate CRC32.
+}
+
+}  // namespace yunq

lib/yunq/serialize.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <glacier/buffer/byte_buffer.h>
+#include <glacier/status/status.h>
+
+namespace yunq {
+
+[[nodiscard]] glcr::Status CheckHeader(const glcr::ByteBuffer& buffer);
+
+void WriteHeader(glcr::ByteBuffer& bytes, uint64_t offset, uint32_t core_size,
+                 uint32_t extension_size);
+
+}  // namespace yunq