From 87505f833b467d619099ea172f6f9b1510a84693 Mon Sep 17 00:00:00 2001
From: Jared Boone <jboone@earfeast.com>
Date: Thu, 12 May 2016 21:57:38 -0700
Subject: [PATCH] Expose filesystem errors on Writer.

---
 firmware/application/capture_thread.hpp |  4 ++++
 firmware/application/ui_record_view.cpp | 16 ++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/firmware/application/capture_thread.hpp b/firmware/application/capture_thread.hpp
index 5ebd4944..a8e5bb3e 100644
--- a/firmware/application/capture_thread.hpp
+++ b/firmware/application/capture_thread.hpp
@@ -26,6 +26,9 @@
 
 #include "event_m0.hpp"
 
+#include "file.hpp"
+#include "optional.hpp"
+
 #include <cstdint>
 #include <cstddef>
 #include <utility>
@@ -33,6 +36,7 @@
 class Writer {
 public:
 	virtual bool write(const void* const buffer, const size_t bytes) = 0;
+	virtual Optional<std::filesystem::filesystem_error> error() const = 0;
 	virtual ~Writer() = default;
 };
 
diff --git a/firmware/application/ui_record_view.cpp b/firmware/application/ui_record_view.cpp
index 5e813a90..0eb67bc7 100644
--- a/firmware/application/ui_record_view.cpp
+++ b/firmware/application/ui_record_view.cpp
@@ -44,6 +44,14 @@ public:
 		return file.write(buffer, bytes);
 	}
 
+	Optional<std::filesystem::filesystem_error> error() const override {
+		if( file.bad() ) {
+			return { file.error() };
+		} else {
+			return { };
+		}
+	}
+
 private:
 	File file;
 };
@@ -71,6 +79,14 @@ public:
 		return success;
 	}
 
+	Optional<std::filesystem::filesystem_error> error() const override {
+		if( file.bad() ) {
+			return { file.error() };
+		} else {
+			return { };
+		}
+	}
+
 private:
 	struct fmt_pcm_t {
 		constexpr fmt_pcm_t(