fix: MCPCをvendored fork化しMCP準拠と接続安定性を改善

- Git submoduleを廃止してMCPCを直接管理
- Windowsで254リクエスト付近に発生する切断を修正
- JSON-RPC 2.0エラー応答を標準化
- tool schemaとruntimeの必須・任意引数を一致
- 1000回連続呼び出しの回帰テストを追加

1 files changed, 46 insertions, 0 deletions

diff --git a/third_party/mcpc/src/log.c b/third_party/mcpc/src/log.c
new file mode 100644
index 0000000..ebf9879
--- /dev/null
+++ b/third_party/mcpc/src/log.c
@@ -0,0 +1,46 @@
+// This file is part of the mcpc library.
+//
+// Copyright (C) 2025 Michael Lee <micl2e2 AT proton.me>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions: 
+// 
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software. 
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#include "log.h"
+
+LogLevel glv = Debug;
+
+void
+lvlog (LogLevel lv, const char *meta, FILE *stream, const char *format, ...)
+{
+  if (lv > glv)
+    return;
+
+  char logind = 'E';
+  if (lv == Info)
+    logind = 'I';
+  else if (lv == Debug)
+    logind = 'D';
+
+  va_list args;
+  va_start (args, format);
+  fprintf (stream, "[%c] %s ", logind, meta);
+  vfprintf (stream, format, args);
+  fprintf (stream, "\n");
+  fflush (stream);
+  fclose (stream);
+  va_end (args);
+}