From e992ca025571a891333a57012c2cd4419b6581e5 Mon Sep 17 00:00:00 2001
From: Diva Canto
Date: Tue, 6 Oct 2009 15:39:53 -0700
Subject: Rewrote parts of the code that were double-locking different objects.
 This is about half of the code base reviewed.

---
 .../Cache/UserProfileCacheService.cs               | 66 +++++++++-------------
 1 file changed, 27 insertions(+), 39 deletions(-)

(limited to 'OpenSim/Framework/Communications/Cache')

diff --git a/OpenSim/Framework/Communications/Cache/UserProfileCacheService.cs b/OpenSim/Framework/Communications/Cache/UserProfileCacheService.cs
index 9e12d948..b02cf5b 100644
--- a/OpenSim/Framework/Communications/Cache/UserProfileCacheService.cs
+++ b/OpenSim/Framework/Communications/Cache/UserProfileCacheService.cs
@@ -128,24 +128,18 @@ namespace OpenSim.Framework.Communications.Cache
         /// <returns>null if no user details are found</returns>
         public CachedUserInfo GetUserDetails(string fname, string lname)
         {
+            CachedUserInfo userInfo;
             lock (m_userProfilesByName)
-            {
-                CachedUserInfo userInfo;
-                
+            {    
                 if (m_userProfilesByName.TryGetValue(string.Format(NAME_FORMAT, fname, lname), out userInfo))
-                {
                     return userInfo;
-                }
-                else
-                {
-                    UserProfileData userProfile = m_commsManager.UserService.GetUserProfile(fname, lname);
-                
-                    if (userProfile != null)
-                        return AddToCaches(userProfile);
-                    else
-                        return null;
-                }
             }
+            UserProfileData userProfile = m_commsManager.UserService.GetUserProfile(fname, lname);
+        
+            if (userProfile != null)
+                return AddToCaches(userProfile);
+            else
+                return null;
         }
         
         /// <summary>
@@ -160,20 +154,14 @@ namespace OpenSim.Framework.Communications.Cache
                 return null;
 
             lock (m_userProfilesById)
-            {
                 if (m_userProfilesById.ContainsKey(userID))
-                {
                     return m_userProfilesById[userID];
-                }
-                else
-                {
-                    UserProfileData userProfile = m_commsManager.UserService.GetUserProfile(userID);
-                    if (userProfile != null)
-                        return AddToCaches(userProfile);
-                    else
-                        return null;
-                }
-            }
+
+            UserProfileData userProfile = m_commsManager.UserService.GetUserProfile(userID);
+            if (userProfile != null)
+                return AddToCaches(userProfile);
+            else
+                return null;
         }
         
         /// <summary>
@@ -211,14 +199,10 @@ namespace OpenSim.Framework.Communications.Cache
             CachedUserInfo createdUserInfo = new CachedUserInfo(m_InventoryService, userProfile);
             
             lock (m_userProfilesById)
-            {
                 m_userProfilesById[createdUserInfo.UserProfile.ID] = createdUserInfo;
-                
-                lock (m_userProfilesByName)
-                {
-                    m_userProfilesByName[createdUserInfo.UserProfile.Name] = createdUserInfo;
-                }
-            }
+
+            lock (m_userProfilesByName)
+                m_userProfilesByName[createdUserInfo.UserProfile.Name] = createdUserInfo;
             
             return createdUserInfo;
         }
@@ -230,21 +214,25 @@ namespace OpenSim.Framework.Communications.Cache
         /// <returns>true if there was a profile to remove, false otherwise</returns>
         protected bool RemoveFromCaches(UUID userId)
         {
+            CachedUserInfo userInfo = null;
             lock (m_userProfilesById)
             {
                 if (m_userProfilesById.ContainsKey(userId))
                 {
-                    CachedUserInfo userInfo = m_userProfilesById[userId];
+                    userInfo = m_userProfilesById[userId];
                     m_userProfilesById.Remove(userId);
-                    
-                    lock (m_userProfilesByName)
+                }
+            }
+
+            if (userInfo != null)
+                lock (m_userProfilesByName)
+                {
+                    if (m_userProfilesByName.ContainsKey(userInfo.UserProfile.Name))
                     {
                         m_userProfilesByName.Remove(userInfo.UserProfile.Name);
+                        return true;
                     }
-                    
-                    return true;
                 }
-            }
             
             return false;
         }
-- 
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