erpt: implement forced shutdown detection

libraries/libstratosphere/source/err/err_api.cpp

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stratosphere.hpp>
+#include "impl/err_string_util.hpp"
+
+namespace ams::err {
+
+    namespace impl {
+
+        namespace {
+
+            constexpr int ErrorCodeCategoryPlatformPrefixForResultModule = 2000;
+
+            ALWAYS_INLINE ErrorCode ConvertResultToErrorCode(const Result &result) {
+                return {
+                    .category = static_cast<ErrorCodeCategory>(ErrorCodeCategoryPlatformPrefixForResultModule + result.GetModule()),
+                    .number   = static_cast<ErrorCodeNumber>(result.GetDescription()),
+                };
+            }
+
+            ALWAYS_INLINE Result ConvertErrorCodeToResult(const ErrorCode &error_code) {
+                const auto result_value = ::ams::result::impl::ResultTraits::MakeValue(error_code.category - ErrorCodeCategoryPlatformPrefixForResultModule, error_code.number);
+                return ::ams::result::impl::MakeResult(result_value);
+            }
+
+        }
+
+    }
+
+    ErrorCode ConvertResultToErrorCode(const Result &result) {
+        AMS_ASSERT(R_FAILED(result));
+
+        return ::ams::err::impl::ConvertResultToErrorCode(result);
+    }
+
+    void GetErrorCodeString(char *dst, size_t dst_size, ErrorCode error_code) {
+        AMS_ASSERT(dst != nullptr);
+        AMS_ASSERT(dst_size >= static_cast<size_t>(ErrorCode::StringLengthMax));
+        AMS_ASSERT(error_code.IsValid());
+
+        return ::ams::err::impl::MakeErrorCodeString(dst, dst_size, error_code);
+    }
+
+}