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Add code to GridService to check for overlapping of varregions 

when registering a new region.

Adds parameter "[GridService]SuppressVarRegionOverlapCheckOnRegistration=false"
that can be turned on to suppress the error check if a simulator's database
has old regions that overlap.
0.8.0.3
Robert Adams 2014-07-20 10:34:09 -07:00 committed by Justin Clark-Casey
parent 74848e9cdb
commit 01d13b4ad7
3 changed files with 128 additions and 10 deletions
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4
OpenSim/Data/IRegionData.cs
View File

@ -52,12 +52,12 @@ namespace OpenSim.Data
public int sizeY;
/// <summary>
/// Return the x-coordinate of this region.
/// Return the x-coordinate of this region in region units.
/// </summary>
public int coordX { get { return (int)Util.WorldToRegionLoc((uint)posX); } }
/// <summary>
/// Return the y-coordinate of this region.
/// Return the y-coordinate of this region in region units.
/// </summary>
public int coordY { get { return (int)Util.WorldToRegionLoc((uint)posY); } }

128
OpenSim/Services/GridService/GridService.cs
View File

@ -47,6 +47,8 @@ namespace OpenSim.Services.GridService
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
private string LogHeader = "[GRID SERVICE]";
private bool m_DeleteOnUnregister = true;
private static GridService m_RootInstance = null;
protected IConfigSource m_config;
@ -56,6 +58,8 @@ namespace OpenSim.Services.GridService
protected bool m_AllowDuplicateNames = false;
protected bool m_AllowHypergridMapSearch = false;
protected bool m_SuppressVarregionOverlapCheckOnRegistration = false;
public GridService(IConfigSource config)
: base(config)
{
@ -76,6 +80,7 @@ namespace OpenSim.Services.GridService
}
m_AllowDuplicateNames = gridConfig.GetBoolean("AllowDuplicateNames", m_AllowDuplicateNames);
m_AllowHypergridMapSearch = gridConfig.GetBoolean("AllowHypergridMapSearch", m_AllowHypergridMapSearch);
m_SuppressVarregionOverlapCheckOnRegistration = gridConfig.GetBoolean("SuppressVarregionOverlapCheckOnRegistration", m_SuppressVarregionOverlapCheckOnRegistration);
}
if (m_RootInstance == null)
@ -144,12 +149,19 @@ namespace OpenSim.Services.GridService
if (regionInfos.RegionID == UUID.Zero)
return "Invalid RegionID - cannot be zero UUID";
RegionData region = m_Database.Get(regionInfos.RegionLocX, regionInfos.RegionLocY, scopeID);
if ((region != null) && (region.RegionID != regionInfos.RegionID))
String reason = "Region overlaps another region";
RegionData region = FindAnyConflictingRegion(regionInfos, scopeID, out reason);
// If there is a conflicting region, if it has the same ID and same coordinates
// then it is a region re-registering (permissions and ownership checked later).
if ((region != null)
&& ( (region.coordX != regionInfos.RegionCoordX)
|| (region.coordY != regionInfos.RegionCoordY)
|| (region.RegionID != regionInfos.RegionID) )
)
{
m_log.WarnFormat("[GRID SERVICE]: Region {0} tried to register in coordinates {1}, {2} which are already in use in scope {3}.",
regionInfos.RegionID, regionInfos.RegionLocX, regionInfos.RegionLocY, scopeID);
return "Region overlaps another region";
// If not same ID and same coordinates, this new region has conflicts and can't be registered.
m_log.WarnFormat("{0} Register region conflict in scope {1}. {2}", LogHeader, scopeID, reason);
return reason;
}
if (region != null)
@ -279,6 +291,112 @@ namespace OpenSim.Services.GridService
return String.Empty;
}
/// <summary>
/// Search the region map for regions conflicting with this region.
/// The region to be added is passed and we look for any existing regions that are
/// in the requested location, that are large varregions that overlap this region, or
/// are previously defined regions that would lie under this new region.
/// </summary>
/// <param name="regionInfos">Information on region requested to be added to the world map</param>
/// <param name="scopeID">Grid id for region</param>
/// <param name="reason">The reason the returned region conflicts with passed region</param>
/// <returns></returns>
private RegionData FindAnyConflictingRegion(GridRegion regionInfos, UUID scopeID, out string reason)
{
reason = "Reregistration";
// First see if there is an existing region right where this region is trying to go
// (We keep this result so it can be returned if suppressing errors)
RegionData noErrorRegion = m_Database.Get(regionInfos.RegionLocX, regionInfos.RegionLocY, scopeID);
RegionData region = noErrorRegion;
if (region != null
&& region.RegionID == regionInfos.RegionID
&& region.sizeX == regionInfos.RegionSizeX
&& region.sizeY == regionInfos.RegionSizeY)
{
// If this seems to be exactly the same region, return this as it could be
// a re-registration (permissions checked by calling routine).
m_log.DebugFormat("{0} FindAnyConflictingRegion: re-register of {1}",
LogHeader, RegionString(regionInfos));
return region;
}
// No region exactly there or we're resizing an existing region.
// Fetch regions that could be varregions overlapping requested location.
int xmin = regionInfos.RegionLocX - (int)Constants.MaximumRegionSize + 10;
int xmax = regionInfos.RegionLocX;
int ymin = regionInfos.RegionLocY - (int)Constants.MaximumRegionSize + 10;
int ymax = regionInfos.RegionLocY;
List<RegionData> rdatas = m_Database.Get(xmin, ymin, xmax, ymax, scopeID);
foreach (RegionData rdata in rdatas)
{
// m_log.DebugFormat("{0} FindAnyConflictingRegion: find existing. Checking {1}", LogHeader, RegionString(rdata) );
if ( (rdata.posX + rdata.sizeX > regionInfos.RegionLocX)
&& (rdata.posY + rdata.sizeY > regionInfos.RegionLocY) )
{
region = rdata;
m_log.WarnFormat("{0} FindAnyConflictingRegion: conflict of {1} by existing varregion {2}",
LogHeader, RegionString(regionInfos), RegionString(region));
reason = String.Format("Region location is overlapped by existing varregion {0}",
RegionString(region));
if (m_SuppressVarregionOverlapCheckOnRegistration)
region = noErrorRegion;
return region;
}
}
// There isn't a region that overlaps this potential region.
// See if this potential region overlaps an existing region.
// First, a shortcut of not looking for overlap if new region is legacy region sized
// and connot overlap anything.
if (regionInfos.RegionSizeX != Constants.RegionSize
|| regionInfos.RegionSizeY != Constants.RegionSize)
{
// trim range looked for so we don't pick up neighbor regions just off the edges
xmin = regionInfos.RegionLocX;
xmax = regionInfos.RegionLocX + regionInfos.RegionSizeX - 10;
ymin = regionInfos.RegionLocY;
ymax = regionInfos.RegionLocY + regionInfos.RegionSizeY - 10;
rdatas = m_Database.Get(xmin, ymin, xmax, ymax, scopeID);
// If the region is being resized, the found region could be ourself.
foreach (RegionData rdata in rdatas)
{
// m_log.DebugFormat("{0} FindAnyConflictingRegion: see if overlap. Checking {1}", LogHeader, RegionString(rdata) );
if (region == null || region.RegionID != regionInfos.RegionID)
{
region = rdata;
m_log.WarnFormat("{0} FindAnyConflictingRegion: conflict of varregion {1} overlaps existing region {2}",
LogHeader, RegionString(regionInfos), RegionString(region));
reason = String.Format("Region {0} would overlap existing region {1}",
RegionString(regionInfos), RegionString(region));
if (m_SuppressVarregionOverlapCheckOnRegistration)
region = noErrorRegion;
return region;
}
}
}
// If we get here, region is either null (nothing found here) or
// is the non-conflicting region found at the location being requested.
return region;
}
// String describing name and region location of passed region
private String RegionString(RegionData reg)
{
return String.Format("{0}/{1} at <{2},{3}>",
reg.RegionName, reg.RegionID, reg.coordX, reg.coordY);
}
// String describing name and region location of passed region
private String RegionString(GridRegion reg)
{
return String.Format("{0}/{1} at <{2},{3}>",
reg.RegionName, reg.RegionID, reg.RegionCoordX, reg.RegionCoordY);
}
public bool DeregisterRegion(UUID regionID)
{
RegionData region = m_Database.Get(regionID, UUID.Zero);

4
OpenSim/Services/Interfaces/IGridService.cs
View File

@ -186,12 +186,12 @@ namespace OpenSim.Services.Interfaces
protected IPEndPoint m_internalEndPoint;
/// <summary>
/// The co-ordinate of this region.
/// The co-ordinate of this region in region units.
/// </summary>
public int RegionCoordX { get { return (int)Util.WorldToRegionLoc((uint)RegionLocX); } }
/// <summary>
/// The co-ordinate of this region
/// The co-ordinate of this region in region units
/// </summary>
public int RegionCoordY { get { return (int)Util.WorldToRegionLoc((uint)RegionLocY); } }