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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef DESC_STORE_ST_H
#define DESC_STORE_ST_H
/** Allowable types of desc_store_t. */
typedef enum store_type_t {
ROUTER_STORE = 0,
EXTRAINFO_STORE = 1
} store_type_t;
/** A 'store' is a set of descriptors saved on disk, with accompanying
* journal, mmaped as needed, rebuilt as needed. */
struct desc_store_t {
/** Filename (within DataDir) for the store. We append .tmp to this
* filename for a temporary file when rebuilding the store, and .new to this
* filename for the journal. */
const char *fname_base;
/** Human-readable description of what this store contains. */
const char *description;
tor_mmap_t *mmap; /**< A mmap for the main file in the store. */
store_type_t type; /**< What's stored in this store? */
/** The size of the router log, in bytes. */
size_t journal_len;
/** The size of the router store, in bytes. */
size_t store_len;
/** Total bytes dropped since last rebuild: this is space currently
* used in the cache and the journal that could be freed by a rebuild. */
size_t bytes_dropped;
};
#endif
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