| | | 1 | | // Copyright (c) ZeroC, Inc. |
| | | 2 | | |
| | | 3 | | #nullable enable |
| | | 4 | | |
| | | 5 | | using System.Diagnostics; |
| | | 6 | | |
| | | 7 | | namespace Ice.Internal; |
| | | 8 | | |
| | | 9 | | internal sealed class RequestHandlerCache |
| | | 10 | | { |
| | | 11 | | internal RequestHandler? requestHandler |
| | | 12 | | { |
| | | 13 | | get |
| | | 14 | | { |
| | 1 | 15 | | if (_cacheConnection) |
| | | 16 | | { |
| | 1 | 17 | | lock (_mutex) |
| | | 18 | | { |
| | 1 | 19 | | if (_cachedRequestHandler != null) |
| | | 20 | | { |
| | 1 | 21 | | return _cachedRequestHandler; |
| | | 22 | | } |
| | 1 | 23 | | } |
| | | 24 | | } |
| | | 25 | | |
| | 1 | 26 | | RequestHandler handler = _reference.getRequestHandler(); |
| | 1 | 27 | | if (_cacheConnection) |
| | | 28 | | { |
| | 1 | 29 | | lock (_mutex) |
| | | 30 | | { |
| | 1 | 31 | | _cachedRequestHandler ??= handler; |
| | | 32 | | // else ignore handler |
| | 1 | 33 | | return _cachedRequestHandler; |
| | | 34 | | } |
| | | 35 | | } |
| | | 36 | | else |
| | | 37 | | { |
| | 1 | 38 | | return handler; |
| | | 39 | | } |
| | 1 | 40 | | } |
| | | 41 | | } |
| | | 42 | | |
| | | 43 | | internal Connection? cachedConnection |
| | | 44 | | { |
| | | 45 | | get |
| | | 46 | | { |
| | 1 | 47 | | if (_cacheConnection) |
| | | 48 | | { |
| | | 49 | | RequestHandler? handler; |
| | 1 | 50 | | lock (_mutex) |
| | | 51 | | { |
| | 1 | 52 | | handler = _cachedRequestHandler; |
| | 1 | 53 | | } |
| | 1 | 54 | | if (handler is not null) |
| | | 55 | | { |
| | 1 | 56 | | return handler.getConnection(); |
| | | 57 | | } |
| | | 58 | | } |
| | 1 | 59 | | return null; |
| | | 60 | | } |
| | | 61 | | } |
| | | 62 | | |
| | | 63 | | private readonly Reference _reference; |
| | | 64 | | private readonly bool _cacheConnection; |
| | 1 | 65 | | private readonly object _mutex = new(); |
| | | 66 | | private RequestHandler? _cachedRequestHandler; |
| | | 67 | | |
| | 1 | 68 | | internal RequestHandlerCache(Reference reference) |
| | | 69 | | { |
| | 1 | 70 | | _reference = reference; |
| | 1 | 71 | | _cacheConnection = reference.getCacheConnection(); |
| | 1 | 72 | | } |
| | | 73 | | |
| | | 74 | | internal void clearCachedRequestHandler(RequestHandler handler) |
| | | 75 | | { |
| | 1 | 76 | | if (_cacheConnection) |
| | | 77 | | { |
| | 1 | 78 | | lock (_mutex) |
| | | 79 | | { |
| | 1 | 80 | | if (handler == _cachedRequestHandler) |
| | | 81 | | { |
| | 1 | 82 | | _cachedRequestHandler = null; |
| | | 83 | | } |
| | 1 | 84 | | } |
| | | 85 | | } |
| | 1 | 86 | | } |
| | | 87 | | } |