From 4bc721c3bf7589b519c5730d093f704ce56e3f09 Mon Sep 17 00:00:00 2001
From: tanaka takashi <isazaka@gmail.com>
Date: Mon, 29 Jun 2026 21:43:54 +0900
Subject: refactor: MCP層をmcpc APIベースに刷新
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- 独自JSON-RPC処理をmcpcへ置き換え
- 各MCPツールを個別ソースへ分離
- 共通コンテキストと登録処理を整理
- mcpc互換修正と統合テストを更新
---
 src/base/allocator.c | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 src/base/allocator.c

(limited to 'src/base/allocator.c')

diff --git a/src/base/allocator.c b/src/base/allocator.c
new file mode 100644
index 0000000..3a5c515
--- /dev/null
+++ b/src/base/allocator.c
@@ -0,0 +1,107 @@
+#define TINY_ALLOCATOR_IMPLEMENTATION
+#include "base/allocator.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+
+static size_t fail_index = SIZE_MAX;
+static size_t calls;
+static size_t outstanding;
+
+static int
+should_fail(void)
+{
+  return calls++ == fail_index;
+}
+
+void *
+tiny_alloc(size_t size)
+{
+  void *result;
+  if (should_fail())
+    {
+      return NULL;
+    }
+  result = malloc(size);
+  if (result != NULL)
+    {
+      outstanding++;
+    }
+  return result;
+}
+
+void *
+tiny_calloc(size_t count, size_t size)
+{
+  void *result;
+  if ((size != 0 && count > SIZE_MAX / size) || should_fail())
+    {
+      return NULL;
+    }
+  result = calloc(count, size);
+  if (result != NULL)
+    {
+      outstanding++;
+    }
+  return result;
+}
+
+void *
+tiny_realloc(void *memory, size_t size)
+{
+  void *result;
+  if (size == 0)
+    {
+      tiny_free(memory);
+      return NULL;
+    }
+  if (should_fail())
+    {
+      return NULL;
+    }
+  result = realloc(memory, size);
+  if (result != NULL && memory == NULL)
+    {
+      outstanding++;
+    }
+  return result;
+}
+
+void
+tiny_free(void *memory)
+{
+  if (memory != NULL)
+    {
+      free(memory);
+      if (outstanding > 0)
+        {
+          outstanding--;
+        }
+    }
+}
+
+void
+tiny_allocator_reset(void)
+{
+  fail_index = SIZE_MAX;
+  calls = 0;
+}
+
+void
+tiny_allocator_fail_after(size_t allocation_index)
+{
+  fail_index = allocation_index;
+  calls = 0;
+}
+
+size_t
+tiny_allocator_call_count(void)
+{
+  return calls;
+}
+
+size_t
+tiny_allocator_outstanding(void)
+{
+  return outstanding;
+}
-- 
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