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22 * @file xmltooling/util/ReplayCache.h
24 * Helper class on top of StorageService for detecting message replay.
27 #if !defined(__xmltooling_replay_h__) && !defined(XMLTOOLING_LITE)
28 #define __xmltooling_replay_h__
30 #include <xmltooling/base.h>
32 namespace xmltooling {
34 class XMLTOOL_API StorageService;
37 * Helper class on top of StorageService for detecting message replay.
39 class XMLTOOL_API ReplayCache
41 MAKE_NONCOPYABLE(ReplayCache);
45 * Creates a replay cache on top of a particular StorageService.
47 * The lifetime of the StorageService <strong>MUST</strong> be longer than
48 * the lifetime of the ReplayCache.
50 * @param storage pointer to a StorageService, or nullptr to keep cache in memory
52 ReplayCache(StorageService* storage=nullptr);
54 virtual ~ReplayCache();
57 * Returns true iff the check value is not found in the cache, and stores it.
59 * @param context a context label to subdivide the cache
60 * @param s value to check
61 * @param expires time for disposal of value from cache
63 virtual bool check(const char* context, const char* s, time_t expires);
66 * Returns true iff the check value is not found in the cache, and stores it.
68 * @param context a context label to subdivide the cache
69 * @param s value to check
70 * @param expires time for disposal of value from cache
72 bool check(const char* context, const XMLCh* s, time_t expires);
76 StorageService* m_storage;
80 #endif /* __xmltooling_replay_h__ */