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, 60 insertions, 0 deletions

diff --git a/third_party/mcpc/src/log.h b/third_party/mcpc/src/log.h
new file mode 100644
index 0000000..ae9eb72
--- /dev/null
+++ b/third_party/mcpc/src/log.h
@@ -0,0 +1,60 @@
+// 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.
+
+#ifndef h_log
+#define h_log
+
+#include <stdarg.h>
+#include <stdio.h>
+
+typedef enum
+{
+    Error = 1,
+    Info,
+    Debug,
+} LogLevel;
+
+extern LogLevel glv; // TODO: thread-safety
+
+#ifdef MCPC_DBG
+#define tulog_d(...)                                                                                                   \
+    do                                                                                                                 \
+    {                                                                                                                  \
+        char meta[100];                                                                                                \
+        sprintf(meta, "%s,%d", __TU__, __LINE__);                                                                      \
+        lvlog(Debug, meta, stderr __VA_OPT__(, ) __VA_ARGS__);                                                         \
+    } while (false)
+#define tuflog_d(...)                                                                                                  \
+    do                                                                                                                 \
+    {                                                                                                                  \
+        FILE *logf = fopen("/tmp/mcpc.log", "a");                                                                      \
+        char meta[100];                                                                                                \
+        sprintf(meta, "%s,%d", __TU__, __LINE__);                                                                      \
+        lvlog(Debug, meta, logf __VA_OPT__(, ) __VA_ARGS__);                                                           \
+    } while (false)
+#else
+#define tulog_d(...) ;
+#define tuflog_d(...) ;
+#endif
+
+void lvlog(LogLevel lv, const char *meta, FILE *stream, const char *format, ...);
+
+#endif