diff options
Diffstat (limited to 'OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs')
-rw-r--r-- | OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs new file mode 100644 index 0000000..786e0b5 --- /dev/null +++ b/OpenSim/Region/CoreModules/ServiceConnectorsOut/Grid/RegionInfoCache.cs | |||
@@ -0,0 +1,137 @@ | |||
1 | /* | ||
2 | * Copyright (c) Contributors, http://opensimulator.org/ | ||
3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. | ||
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions are met: | ||
7 | * * Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * * Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * * Neither the name of the OpenSimulator Project nor the | ||
13 | * names of its contributors may be used to endorse or promote products | ||
14 | * derived from this software without specific prior written permission. | ||
15 | * | ||
16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY | ||
17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY | ||
20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | using System; | ||
28 | using System.Reflection; | ||
29 | using System.Collections.Generic; | ||
30 | using OpenSim.Framework; | ||
31 | using OpenSim.Services.Interfaces; | ||
32 | using OpenMetaverse; | ||
33 | using log4net; | ||
34 | using GridRegion = OpenSim.Services.Interfaces.GridRegion; | ||
35 | |||
36 | namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Grid | ||
37 | { | ||
38 | public class RegionInfoCache | ||
39 | { | ||
40 | private const double CACHE_EXPIRATION_SECONDS = 300.0; // 5 minutes | ||
41 | |||
42 | // private static readonly ILog m_log = | ||
43 | // LogManager.GetLogger( | ||
44 | // MethodBase.GetCurrentMethod().DeclaringType); | ||
45 | |||
46 | internal struct ScopedRegionUUID | ||
47 | { | ||
48 | public UUID m_scopeID; | ||
49 | public UUID m_regionID; | ||
50 | public ScopedRegionUUID(UUID scopeID, UUID regionID) | ||
51 | { | ||
52 | m_scopeID = scopeID; | ||
53 | m_regionID = regionID; | ||
54 | } | ||
55 | } | ||
56 | |||
57 | internal struct ScopedRegionName | ||
58 | { | ||
59 | public UUID m_scopeID; | ||
60 | public string m_name; | ||
61 | public ScopedRegionName(UUID scopeID, string name) | ||
62 | { | ||
63 | m_scopeID = scopeID; | ||
64 | m_name = name; | ||
65 | } | ||
66 | } | ||
67 | |||
68 | private ExpiringCache<ScopedRegionUUID, GridRegion> m_UUIDCache; | ||
69 | private ExpiringCache<ScopedRegionName, ScopedRegionUUID> m_NameCache; | ||
70 | |||
71 | public RegionInfoCache() | ||
72 | { | ||
73 | m_UUIDCache = new ExpiringCache<ScopedRegionUUID, GridRegion>(); | ||
74 | m_NameCache = new ExpiringCache<ScopedRegionName, ScopedRegionUUID>(); | ||
75 | } | ||
76 | |||
77 | public void Cache(GridRegion rinfo) | ||
78 | { | ||
79 | if (rinfo != null) | ||
80 | this.Cache(rinfo.ScopeID,rinfo.RegionID,rinfo); | ||
81 | } | ||
82 | |||
83 | public void Cache(UUID scopeID, UUID regionID, GridRegion rinfo) | ||
84 | { | ||
85 | // for now, do not cache negative results; this is because | ||
86 | // we need to figure out how to handle regions coming online | ||
87 | // in a timely way | ||
88 | if (rinfo == null) | ||
89 | return; | ||
90 | |||
91 | ScopedRegionUUID id = new ScopedRegionUUID(scopeID,regionID); | ||
92 | |||
93 | // Cache even null accounts | ||
94 | m_UUIDCache.AddOrUpdate(id, rinfo, CACHE_EXPIRATION_SECONDS); | ||
95 | if (rinfo != null) | ||
96 | { | ||
97 | ScopedRegionName name = new ScopedRegionName(scopeID,rinfo.RegionName); | ||
98 | m_NameCache.AddOrUpdate(name, id, CACHE_EXPIRATION_SECONDS); | ||
99 | } | ||
100 | } | ||
101 | |||
102 | public GridRegion Get(UUID scopeID, UUID regionID, out bool inCache) | ||
103 | { | ||
104 | inCache = false; | ||
105 | |||
106 | GridRegion rinfo = null; | ||
107 | ScopedRegionUUID id = new ScopedRegionUUID(scopeID,regionID); | ||
108 | if (m_UUIDCache.TryGetValue(id, out rinfo)) | ||
109 | { | ||
110 | inCache = true; | ||
111 | return rinfo; | ||
112 | } | ||
113 | |||
114 | return null; | ||
115 | } | ||
116 | |||
117 | public GridRegion Get(UUID scopeID, string name, out bool inCache) | ||
118 | { | ||
119 | inCache = false; | ||
120 | |||
121 | ScopedRegionName sname = new ScopedRegionName(scopeID,name); | ||
122 | |||
123 | ScopedRegionUUID id; | ||
124 | if (m_NameCache.TryGetValue(sname, out id)) | ||
125 | { | ||
126 | GridRegion rinfo = null; | ||
127 | if (m_UUIDCache.TryGetValue(id, out rinfo)) | ||
128 | { | ||
129 | inCache = true; | ||
130 | return rinfo; | ||
131 | } | ||
132 | } | ||
133 | |||
134 | return null; | ||
135 | } | ||
136 | } | ||
137 | } | ||