--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TaskManager/kernel/ppe/BufferManager.cc	Thu Feb 14 19:37:14 2008 +0900
@@ -0,0 +1,73 @@
+#include <stdlib.h>
+#include "BufferManager.h"
+#include "error.h"
+
+BufferManager::BufferManager(int siz)
+{
+    buffer_db_size = siz;
+}
+
+void
+BufferManager::init(void)
+{
+    buffer_db = new void*[buffer_db_size*4];
+    buffer_db_index = 0;
+}
+
+/**
+ * Fix me
+ *  アライメントできる create も必要 (spe 用に)
+ *  あと、オブジェクトだったら new しないとだめか。
+ *  コンストラクタ呼ぶ必要があるのかー。
+ *  汎用の allocate ってことは templete ？いやだー
+ */ 
+void*
+BufferManager::create_buffer(int size)
+{
+    void *buf1, *buf2;
+
+    buf1 = malloc(size);
+    buf2 = malloc(size);
+
+    register_double_buffer(buf1, buf2);
+
+    return buf1;
+}
+
+void*
+BufferManager::switch_buffer(void* cur)
+{
+    int next_index;
+    int max = buffer_db_size*4;
+
+    for (int i = 0; i < max; i = i + 2) {
+	if (cur == buffer_db[i]) {
+	    next_index = (int)(buffer_db[i+1]);
+	    return buffer_db[i + next_index];
+	}
+    }
+
+    __debug_ppe("buffer 0x%x is not registered\n", (unsigned int)cur);
+
+    return NULL;
+}
+
+int
+BufferManager::register_double_buffer(void *buf1, void *buf2)
+{
+    /**
+     * Fix me
+     *   buffer_db_size 超えた時の処理
+     *   今は単純に -1 < 0 を返す
+     */
+    if (buffer_db_index == buffer_db_size) {
+	return -1;
+    }
+
+    buffer_db[buffer_db_index++] = buf1;
+    buffer_db[buffer_db_index++] = (void*)2;
+    buffer_db[buffer_db_index++] = buf2;
+    buffer_db[buffer_db_index++] = (void*)-2;
+
+    return 0;
+}

--- a/TaskManager/kernel/ppe/TaskManager.cc	Thu Feb 14 18:27:37 2008 +0900
+++ b/TaskManager/kernel/ppe/TaskManager.cc	Thu Feb 14 19:37:14 2008 +0900
@@ -1,5 +1,6 @@
 #include "TaskManager.h"
 #include "SymTable.h"
+#include "BufferManager.h"
 
 TaskManager::TaskManager(int num)
 {

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/TaskManager/BufferManager.h	Thu Feb 14 19:37:14 2008 +0900
@@ -0,0 +1,51 @@
+#ifndef INCLUDED_BUFFER_MANAGER
+#define INCLUDED_BUFFER_MANAGER
+
+#if 0
+buffer database の中身
+
++-----------+
+|  buffer 1 |
++-----------+
+|    2      |
++-----------+
+|  buffer 2 |
++-----------+
+|    -2     |
++-----------+
+|  buffer 3 |
++-----------+
+|    2      |
++-----------+
+|  buffer 4 |
++-----------+
+|    -2     |
++-----------+
+|    ...    |
+
+各 buffer の次の buffer を取得する時は
+buffer 1 が db[i] とすると
+
+next_index  = db[i+1];
+next_buffer = db[i + next_index];
+
+でとれると思ったり思わなかったり。
+各bufferでフラグを持つ必要なくなる(とおもってる)
+
+#endif
+
+class BufferManager {
+public:
+    BufferManager(int siz = 10);
+
+    void **buffer_db;
+    int buffer_db_size;
+    int buffer_db_index;
+
+    void init(void);
+    void *create_buffer(int size);
+    void *switch_buffer(void* buffer);
+    int register_double_buffer(void *buf1, void *buf2);
+};
+
+#endif

--- a/include/TaskManager/error.h	Thu Feb 14 18:27:37 2008 +0900
+++ b/include/TaskManager/error.h	Thu Feb 14 19:37:14 2008 +0900
@@ -13,6 +13,6 @@
 	printf(__VA_ARGS__); \
     } while (0)
 #else /* DEBUG */
-#  define __debug_ooe(...)
+#  define __debug_ppe(...)
 #endif