original

[gb-231r1-is01/GB_2.3_IS01.git] / system / extras / ext4_utils / allocate.h

diff --git a/system/extras/ext4_utils/allocate.h b/system/extras/ext4_utils/allocate.h
new file mode 100644 (file)
index 0000000..f4bed41
--- /dev/null
+++ b/system/extras/ext4_utils/allocate.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define EXT4_ALLOCATE_FAILED (u32)(~0)
+
+#include "ext4_utils.h"
+#include "ext4.h"
+
+struct block_allocation;
+
+void block_allocator_init();
+void block_allocator_free();
+u32 allocate_block();
+struct block_allocation *allocate_blocks(u32 len);
+int block_allocation_num_regions(struct block_allocation *alloc);
+int block_allocation_len(struct block_allocation *alloc);
+struct ext4_inode *get_inode(u32 inode);
+void reduce_allocation(struct block_allocation *alloc, u32 len);
+u32 get_block(struct block_allocation *alloc, u32 block);
+u32 get_oob_block(struct block_allocation *alloc, u32 block);
+void get_next_region(struct block_allocation *alloc);
+void get_region(struct block_allocation *alloc, u32 *block, u32 *len);
+u32 get_free_blocks(u32 bg);
+u32 get_free_inodes(u32 bg);
+u32 reserve_inodes(int bg, u32 inodes);
+void add_directory(u32 inode);
+u16 get_directories(int bg);
+u32 allocate_inode();
+void free_alloc(struct block_allocation *alloc);
+int reserve_oob_blocks(struct block_allocation *alloc, int blocks);
+int advance_blocks(struct block_allocation *alloc, int blocks);
+int advance_oob_blocks(struct block_allocation *alloc, int blocks);
+int last_region(struct block_allocation *alloc);
+void rewind_alloc(struct block_allocation *alloc);
+void append_region(struct block_allocation *alloc,
+       u32 block, u32 len, int bg);
+struct block_allocation *create_allocation();
+int append_oob_allocation(struct block_allocation *alloc, u32 len);