From 35119a9d3750bf786e841c25a46cd59ea2117462 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Sat, 20 Jul 2024 19:37:39 +0200
Subject: wip

---
 modules/core/c++/buffer.hpp | 17 +++++++++++++++++
 modules/core/c++/common.hpp |  4 ++++
 2 files changed, 21 insertions(+)

(limited to 'modules/core/c++')

diff --git a/modules/core/c++/buffer.hpp b/modules/core/c++/buffer.hpp
index f62e7ad..87c54a6 100644
--- a/modules/core/c++/buffer.hpp
+++ b/modules/core/c++/buffer.hpp
@@ -194,5 +194,22 @@ public:
 	const uint8_t &write(size_t i = 0) const override;
 
 	error write_require_length(size_t bytes) override;
+
+	/**
+	 */
+	error_or<array_buffer> extract_front(uint64_t size) {
+		if(buffer_.empty()){
+			return make_error<err::recoverable>("Chain Array buffer is empty.");
+		}
+
+		auto& arr_front = buffer_.front();
+		if(size != arr_front.size()){
+			return make_error<err::invalid_state>("Can't extract array buffer. Size doesn't match. Use view and copy.");
+		}
+
+		auto arr = std::move(buffer_.front());
+		buffer_.pop_front();
+		return std::move(arr);
+	}
 };
 } // namespace saw
diff --git a/modules/core/c++/common.hpp b/modules/core/c++/common.hpp
index ebca498..f63c531 100644
--- a/modules/core/c++/common.hpp
+++ b/modules/core/c++/common.hpp
@@ -46,6 +46,10 @@ private:
 	T* ptr_;
 
 public:
+	ptr():
+		ptr_{nullptr}
+	{}
+
 	ptr(T& ptr__):
 		ptr_{&ptr__}
 	{}
-- 
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