Protocol Buffers - Google's data interchange format (grpc依赖)
https://developers.google.com/protocol-buffers/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.4 KiB
59 lines
2.4 KiB
4 years ago
|
/*
|
||
|
4 years ago
|
* Copyright (c) 2009-2021, Google LLC
|
||
|
4 years ago
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions are met:
|
||
|
|
* * Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* * Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* * Neither the name of Google LLC nor the
|
||
|
|
* names of its contributors may be used to endorse or promote products
|
||
|
|
* derived from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
* DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY
|
||
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||
|
|
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
4 years ago
|
|
||
|
|
#ifndef UPB_INT_H_
|
||
|
|
#define UPB_INT_H_
|
||
|
|
|
||
|
|
#include "upb/upb.h"
|
||
|
|
|
||
|
|
struct mem_block;
|
||
|
|
typedef struct mem_block mem_block;
|
||
|
|
|
||
|
|
struct upb_arena {
|
||
|
|
_upb_arena_head head;
|
||
4 years ago
|
/* Stores cleanup metadata for this arena.
|
||
|
|
* - a pointer to the current cleanup counter.
|
||
|
|
* - a boolean indicating if there is an unowned initial block. */
|
||
|
4 years ago
|
uintptr_t cleanup_metadata;
|
||
|
4 years ago
|
|
||
|
|
/* Allocator to allocate arena blocks. We are responsible for freeing these
|
||
|
|
* when we are destroyed. */
|
||
|
|
upb_alloc *block_alloc;
|
||
|
|
uint32_t last_size;
|
||
|
|
|
||
|
|
/* When multiple arenas are fused together, each arena points to a parent
|
||
|
|
* arena (root points to itself). The root tracks how many live arenas
|
||
|
|
* reference it. */
|
||
|
|
uint32_t refcount; /* Only used when a->parent == a */
|
||
|
|
struct upb_arena *parent;
|
||
|
|
|
||
|
|
/* Linked list of blocks to free/cleanup. */
|
||
|
|
mem_block *freelist, *freelist_tail;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* UPB_INT_H_ */
|