From 134f86e8d5c414409631b25b8c6f0ee45fbd8631 Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Thu, 3 Nov 2016 21:44:39 +1000 Subject: Initial update to OpenSim 0.8.2.1 source code. --- .../Addons/Groups/RemoteConnectorCacheWrapper.cs | 888 +++++++++++++++++++++ 1 file changed, 888 insertions(+) create mode 100644 OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs (limited to 'OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs') diff --git a/OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs b/OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs new file mode 100644 index 0000000..813f796 --- /dev/null +++ b/OpenSim/Addons/Groups/RemoteConnectorCacheWrapper.cs @@ -0,0 +1,888 @@ +/* + * Copyright (c) Contributors, http://opensimulator.org/ + * See CONTRIBUTORS.TXT for a full list of copyright holders. + * + * 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 the OpenSimulator Project 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 DEVELOPERS ``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 THE CONTRIBUTORS 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. + */ + +using System; +using System.Collections.Generic; +using System.Reflection; +using System.Threading; + +using OpenSim.Framework; +//using OpenSim.Region.Framework.Interfaces; +using OpenSim.Services.Interfaces; + +using OpenMetaverse; + +namespace OpenSim.Groups +{ + public delegate ExtendedGroupRecord GroupRecordDelegate(); + public delegate GroupMembershipData GroupMembershipDelegate(); + public delegate List GroupMembershipListDelegate(); + public delegate List GroupMembersListDelegate(); + public delegate List GroupRolesListDelegate(); + public delegate List RoleMembersListDelegate(); + public delegate GroupNoticeInfo NoticeDelegate(); + public delegate List NoticeListDelegate(); + public delegate void VoidDelegate(); + public delegate bool BooleanDelegate(); + + public class RemoteConnectorCacheWrapper + { + private ForeignImporter m_ForeignImporter; + + private Dictionary m_ActiveRequests = new Dictionary(); + private const int GROUPS_CACHE_TIMEOUT = 1 * 60; // 1 minutes + + // This all important cache cahces objects of different types: + // group- or group- => ExtendedGroupRecord + // active- => GroupMembershipData + // membership-- => GroupMembershipData + // memberships- => List + // members-- => List + // role- => GroupRolesData + // roles- => List ; all roles in the group + // roles-- => List ; roles that the agent has + // rolemembers-- => List + // notice- => GroupNoticeInfo + // notices- => List + private ExpiringCache m_Cache = new ExpiringCache(); + + public RemoteConnectorCacheWrapper(IUserManagement uman) + { + m_ForeignImporter = new ForeignImporter(uman); + } + + public UUID CreateGroup(UUID RequestingAgentID, GroupRecordDelegate d) + { + //m_log.DebugFormat("[Groups.RemoteConnector]: Creating group {0}", name); + //reason = string.Empty; + + //ExtendedGroupRecord group = m_GroupsService.CreateGroup(RequestingAgentID.ToString(), name, charter, showInList, insigniaID, + // membershipFee, openEnrollment, allowPublish, maturePublish, founderID, out reason); + ExtendedGroupRecord group = d(); + + if (group == null) + return UUID.Zero; + + if (group.GroupID != UUID.Zero) + lock (m_Cache) + { + m_Cache.Add("group-" + group.GroupID.ToString(), group, GROUPS_CACHE_TIMEOUT); + if (m_Cache.Contains("memberships-" + RequestingAgentID.ToString())) + m_Cache.Remove("memberships-" + RequestingAgentID.ToString()); + } + + return group.GroupID; + } + + public bool UpdateGroup(UUID groupID, GroupRecordDelegate d) + { + //reason = string.Empty; + //ExtendedGroupRecord group = m_GroupsService.UpdateGroup(RequestingAgentID, groupID, charter, showInList, insigniaID, membershipFee, openEnrollment, allowPublish, maturePublish); + ExtendedGroupRecord group = d(); + + if (group != null && group.GroupID != UUID.Zero) + lock (m_Cache) + m_Cache.AddOrUpdate("group-" + group.GroupID.ToString(), group, GROUPS_CACHE_TIMEOUT); + return true; + } + + public ExtendedGroupRecord GetGroupRecord(string RequestingAgentID, UUID GroupID, string GroupName, GroupRecordDelegate d) + { + //if (GroupID == UUID.Zero && (GroupName == null || GroupName != null && GroupName == string.Empty)) + // return null; + + object group = null; + bool firstCall = false; + string cacheKey = "group-"; + if (GroupID != UUID.Zero) + cacheKey += GroupID.ToString(); + else + cacheKey += GroupName; + + //m_log.DebugFormat("[XXX]: GetGroupRecord {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out group)) + { + //m_log.DebugFormat("[XXX]: GetGroupRecord {0} cached!", cacheKey); + return (ExtendedGroupRecord)group; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + //group = m_GroupsService.GetGroupRecord(RequestingAgentID, GroupID, GroupName); + group = d(); + + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, group, GROUPS_CACHE_TIMEOUT); + return (ExtendedGroupRecord)group; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public bool AddAgentToGroup(string RequestingAgentID, string AgentID, UUID GroupID, GroupMembershipDelegate d) + { + GroupMembershipData membership = d(); + if (membership == null) + return false; + + lock (m_Cache) + { + // first, remove everything! add a user is a heavy-duty op + m_Cache.Clear(); + + m_Cache.AddOrUpdate("active-" + AgentID.ToString(), membership, GROUPS_CACHE_TIMEOUT); + m_Cache.AddOrUpdate("membership-" + AgentID.ToString() + "-" + GroupID.ToString(), membership, GROUPS_CACHE_TIMEOUT); + } + + + return true; + } + + public void RemoveAgentFromGroup(string RequestingAgentID, string AgentID, UUID GroupID, VoidDelegate d) + { + d(); + + lock (m_Cache) + { + string cacheKey = "active-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "memberships-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "members-" + RequestingAgentID.ToString() + "-" + GroupID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "roles-" + "-" + GroupID.ToString() + "-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + } + } + + public void SetAgentActiveGroup(string AgentID, GroupMembershipDelegate d) + { + GroupMembershipData activeGroup = d(); + string cacheKey = "active-" + AgentID.ToString(); + lock (m_Cache) + if (m_Cache.Contains(cacheKey)) + m_Cache.AddOrUpdate(cacheKey, activeGroup, GROUPS_CACHE_TIMEOUT); + } + + public ExtendedGroupMembershipData GetAgentActiveMembership(string AgentID, GroupMembershipDelegate d) + { + object membership = null; + bool firstCall = false; + string cacheKey = "active-" + AgentID.ToString(); + + //m_log.DebugFormat("[XXX]: GetAgentActiveMembership {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out membership)) + { + //m_log.DebugFormat("[XXX]: GetAgentActiveMembership {0} cached!", cacheKey); + return (ExtendedGroupMembershipData)membership; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + membership = d(); + + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, membership, GROUPS_CACHE_TIMEOUT); + return (ExtendedGroupMembershipData)membership; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + + } + + public ExtendedGroupMembershipData GetAgentGroupMembership(string AgentID, UUID GroupID, GroupMembershipDelegate d) + { + object membership = null; + bool firstCall = false; + string cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString(); + + //m_log.DebugFormat("[XXX]: GetAgentGroupMembership {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out membership)) + { + //m_log.DebugFormat("[XXX]: GetAgentGroupMembership {0}", cacheKey); + return (ExtendedGroupMembershipData)membership; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + membership = d(); + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, membership, GROUPS_CACHE_TIMEOUT); + return (ExtendedGroupMembershipData)membership; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public List GetAgentGroupMemberships(string AgentID, GroupMembershipListDelegate d) + { + object memberships = null; + bool firstCall = false; + string cacheKey = "memberships-" + AgentID.ToString(); + + //m_log.DebugFormat("[XXX]: GetAgentGroupMemberships {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out memberships)) + { + //m_log.DebugFormat("[XXX]: GetAgentGroupMemberships {0} cached!", cacheKey); + return (List)memberships; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + memberships = d(); + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, memberships, GROUPS_CACHE_TIMEOUT); + return (List)memberships; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public List GetGroupMembers(string RequestingAgentID, UUID GroupID, GroupMembersListDelegate d) + { + object members = null; + bool firstCall = false; + // we need to key in also on the requester, because different ppl have different view privileges + string cacheKey = "members-" + RequestingAgentID.ToString() + "-" + GroupID.ToString(); + + //m_log.DebugFormat("[XXX]: GetGroupMembers {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out members)) + { + List xx = (List)members; + return xx.ConvertAll(new Converter(m_ForeignImporter.ConvertGroupMembersData)); + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + List _members = d(); + + if (_members != null && _members.Count > 0) + members = _members.ConvertAll(new Converter(m_ForeignImporter.ConvertGroupMembersData)); + else + members = new List(); + + lock (m_Cache) + { + //m_Cache.AddOrUpdate(cacheKey, members, GROUPS_CACHE_TIMEOUT); + m_Cache.AddOrUpdate(cacheKey, _members, GROUPS_CACHE_TIMEOUT); + + return (List)members; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public bool AddGroupRole(UUID groupID, UUID roleID, string description, string name, ulong powers, string title, BooleanDelegate d) + { + if (d()) + { + GroupRolesData role = new GroupRolesData(); + role.Description = description; + role.Members = 0; + role.Name = name; + role.Powers = powers; + role.RoleID = roleID; + role.Title = title; + + lock (m_Cache) + { + m_Cache.AddOrUpdate("role-" + roleID.ToString(), role, GROUPS_CACHE_TIMEOUT); + + // also remove this list + if (m_Cache.Contains("roles-" + groupID.ToString())) + m_Cache.Remove("roles-" + groupID.ToString()); + + } + + return true; + } + + return false; + } + + public bool UpdateGroupRole(UUID groupID, UUID roleID, string name, string description, string title, ulong powers, BooleanDelegate d) + { + if (d()) + { + object role; + lock (m_Cache) + if (m_Cache.TryGetValue("role-" + roleID.ToString(), out role)) + { + GroupRolesData r = (GroupRolesData)role; + r.Description = description; + r.Name = name; + r.Powers = powers; + r.Title = title; + + m_Cache.Update("role-" + roleID.ToString(), r, GROUPS_CACHE_TIMEOUT); + } + return true; + } + else + { + lock (m_Cache) + { + if (m_Cache.Contains("role-" + roleID.ToString())) + m_Cache.Remove("role-" + roleID.ToString()); + + // also remove these lists, because they will have an outdated role + if (m_Cache.Contains("roles-" + groupID.ToString())) + m_Cache.Remove("roles-" + groupID.ToString()); + + } + + return false; + } + } + + public void RemoveGroupRole(string RequestingAgentID, UUID groupID, UUID roleID, VoidDelegate d) + { + d(); + + lock (m_Cache) + { + if (m_Cache.Contains("role-" + roleID.ToString())) + m_Cache.Remove("role-" + roleID.ToString()); + + // also remove the list, because it will have an removed role + if (m_Cache.Contains("roles-" + groupID.ToString())) + m_Cache.Remove("roles-" + groupID.ToString()); + + if (m_Cache.Contains("roles-" + groupID.ToString() + "-" + RequestingAgentID.ToString())) + m_Cache.Remove("roles-" + groupID.ToString() + "-" + RequestingAgentID.ToString()); + + if (m_Cache.Contains("rolemembers-" + RequestingAgentID.ToString() + "-" + groupID.ToString())) + m_Cache.Remove("rolemembers-" + RequestingAgentID.ToString() + "-" + groupID.ToString()); + } + } + + public List GetGroupRoles(string RequestingAgentID, UUID GroupID, GroupRolesListDelegate d) + { + object roles = null; + bool firstCall = false; + string cacheKey = "roles-" + GroupID.ToString(); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out roles)) + return (List)roles; + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + roles = d(); + if (roles != null) + { + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, roles, GROUPS_CACHE_TIMEOUT); + return (List)roles; + } + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public List GetGroupRoleMembers(string RequestingAgentID, UUID GroupID, RoleMembersListDelegate d) + { + object rmembers = null; + bool firstCall = false; + // we need to key in also on the requester, because different ppl have different view privileges + string cacheKey = "rolemembers-" + RequestingAgentID.ToString() + "-" + GroupID.ToString(); + + //m_log.DebugFormat("[XXX]: GetGroupRoleMembers {0}", cacheKey); + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out rmembers)) + { + List xx = (List)rmembers; + return xx.ConvertAll(m_ForeignImporter.ConvertGroupRoleMembersData); + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + List _rmembers = d(); + + if (_rmembers != null && _rmembers.Count > 0) + rmembers = _rmembers.ConvertAll(new Converter(m_ForeignImporter.ConvertGroupRoleMembersData)); + else + rmembers = new List(); + + lock (m_Cache) + { + // For some strange reason, when I cache the list of GroupRoleMembersData, + // it gets emptied out. The TryGet gets an empty list... + //m_Cache.AddOrUpdate(cacheKey, rmembers, GROUPS_CACHE_TIMEOUT); + // Caching the list of ExtendedGroupRoleMembersData doesn't show that issue + // I don't get it. + m_Cache.AddOrUpdate(cacheKey, _rmembers, GROUPS_CACHE_TIMEOUT); + return (List)rmembers; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public void AddAgentToGroupRole(string RequestingAgentID, string AgentID, UUID GroupID, UUID RoleID, BooleanDelegate d) + { + if (d()) + { + lock (m_Cache) + { + // update the cached role + string cacheKey = "role-" + RoleID.ToString(); + object obj; + if (m_Cache.TryGetValue(cacheKey, out obj)) + { + GroupRolesData r = (GroupRolesData)obj; + r.Members++; + } + + // add this agent to the list of role members + cacheKey = "rolemembers-" + RequestingAgentID.ToString() + "-" + GroupID.ToString(); + if (m_Cache.TryGetValue(cacheKey, out obj)) + { + try + { + // This may throw an exception, in which case the agentID is not a UUID but a full ID + // In that case, let's just remove the whoe things from the cache + UUID id = new UUID(AgentID); + List xx = (List)obj; + List rmlist = xx.ConvertAll(m_ForeignImporter.ConvertGroupRoleMembersData); + GroupRoleMembersData rm = new GroupRoleMembersData(); + rm.MemberID = id; + rm.RoleID = RoleID; + rmlist.Add(rm); + } + catch + { + m_Cache.Remove(cacheKey); + } + } + + // Remove the cached info about this agent's roles + // because we don't have enough local info about the new role + cacheKey = "roles-" + GroupID.ToString() + "-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + } + } + } + + public void RemoveAgentFromGroupRole(string RequestingAgentID, string AgentID, UUID GroupID, UUID RoleID, BooleanDelegate d) + { + if (d()) + { + lock (m_Cache) + { + // update the cached role + string cacheKey = "role-" + RoleID.ToString(); + object obj; + if (m_Cache.TryGetValue(cacheKey, out obj)) + { + GroupRolesData r = (GroupRolesData)obj; + r.Members--; + } + + cacheKey = "roles-" + GroupID.ToString() + "-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "rolemembers-" + RequestingAgentID.ToString() + "-" + GroupID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + } + } + } + + public List GetAgentGroupRoles(string RequestingAgentID, string AgentID, UUID GroupID, GroupRolesListDelegate d) + { + object roles = null; + bool firstCall = false; + string cacheKey = "roles-" + GroupID.ToString() + "-" + AgentID.ToString(); + + //m_log.DebugFormat("[XXX]: GetAgentGroupRoles {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out roles)) + { + //m_log.DebugFormat("[XXX]: GetAgentGroupRoles {0} cached!", cacheKey); + return (List)roles; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + roles = d(); + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, roles, GROUPS_CACHE_TIMEOUT); + m_ActiveRequests.Remove(cacheKey); + return (List)roles; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public void SetAgentActiveGroupRole(string AgentID, UUID GroupID, VoidDelegate d) + { + d(); + + lock (m_Cache) + { + // Invalidate cached info, because it has ActiveRoleID and Powers + string cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "memberships-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + } + } + + public void UpdateMembership(string AgentID, UUID GroupID, bool AcceptNotices, bool ListInProfile, VoidDelegate d) + { + d(); + + lock (m_Cache) + { + string cacheKey = "membership-" + AgentID.ToString() + "-" + GroupID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "memberships-" + AgentID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + cacheKey = "active-" + AgentID.ToString(); + object m = null; + if (m_Cache.TryGetValue(cacheKey, out m)) + { + GroupMembershipData membership = (GroupMembershipData)m; + membership.ListInProfile = ListInProfile; + membership.AcceptNotices = AcceptNotices; + } + } + } + + public bool AddGroupNotice(UUID groupID, UUID noticeID, GroupNoticeInfo notice, BooleanDelegate d) + { + if (d()) + { + lock (m_Cache) + { + m_Cache.AddOrUpdate("notice-" + noticeID.ToString(), notice, GROUPS_CACHE_TIMEOUT); + string cacheKey = "notices-" + groupID.ToString(); + if (m_Cache.Contains(cacheKey)) + m_Cache.Remove(cacheKey); + + } + + return true; + } + + return false; + } + + public GroupNoticeInfo GetGroupNotice(UUID noticeID, NoticeDelegate d) + { + object notice = null; + bool firstCall = false; + string cacheKey = "notice-" + noticeID.ToString(); + + //m_log.DebugFormat("[XXX]: GetAgentGroupRoles {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out notice)) + { + return (GroupNoticeInfo)notice; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + GroupNoticeInfo _notice = d(); + + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, _notice, GROUPS_CACHE_TIMEOUT); + return _notice; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + + public List GetGroupNotices(UUID GroupID, NoticeListDelegate d) + { + object notices = null; + bool firstCall = false; + string cacheKey = "notices-" + GroupID.ToString(); + + //m_log.DebugFormat("[XXX]: GetGroupNotices {0}", cacheKey); + + while (true) + { + lock (m_Cache) + { + if (m_Cache.TryGetValue(cacheKey, out notices)) + { + //m_log.DebugFormat("[XXX]: GetGroupNotices {0} cached!", cacheKey); + return (List)notices; + } + + // not cached + if (!m_ActiveRequests.ContainsKey(cacheKey)) + { + m_ActiveRequests.Add(cacheKey, true); + firstCall = true; + } + } + + if (firstCall) + { + try + { + notices = d(); + + lock (m_Cache) + { + m_Cache.AddOrUpdate(cacheKey, notices, GROUPS_CACHE_TIMEOUT); + return (List)notices; + } + } + finally + { + m_ActiveRequests.Remove(cacheKey); + } + } + else + Thread.Sleep(50); + } + } + } +} \ No newline at end of file -- cgit v1.1