public virtual void Dispose()
{
if (handle != null)
{
handle.Dispose();
handle = null;
}
}
public virtual void Dispose()
{
if (handle != null)
{
handle.Dispose();
handle = null;
}
if (completionPort != null)
{
completionPort.Dispose();
completionPort = null;
}
}
public JobObject(string name, bool openExisting, bool terminateOnLastHandleClose = true)
{
if (openExisting)
{
handle = new SafeJobObjectHandle(NativeMethods.OpenJobObject(NativeMethods.JobObjectAccessRights.AllAccess, false, name));
}
else
{
var token = NativeMethods.CreateJobObject(IntPtr.Zero, name);
if (token == IntPtr.Zero)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
handle = new SafeJobObjectHandle(token);
SetJobLimits(NativeMethods.JobObjectLimit.KillOnJobClose);
}
if (handle.IsInvalid)
{
throw new Exception("Unable to create job object.");
}
}
public JobObject(string name, bool openExisting, bool terminateOnLastHandleClose = true)
{
if (openExisting)
{
handle = new SafeJobObjectHandle(NativeMethods.OpenJobObject(NativeMethods.JobObjectAccessRights.AllAccess, false, name));
}
else
{
var token = NativeMethods.CreateJobObject(IntPtr.Zero, name);
if (token == IntPtr.Zero)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
handle = new SafeJobObjectHandle(token);
SetJobLimits(NativeMethods.JobObjectLimit.KillOnJobClose);
}
if (handle.IsInvalid)
{
throw new Exception("Unable to create job object.");
}
}
public virtual void Dispose()
{
if (handle != null)
{
handle.Dispose();
handle = null;
}
}
static int[] GetJobObjectProcessIds(SafeJobObjectHandle handle)
{
const int JobCountIncrement = 5;
int numberOfAssignedProcessesOffset = Marshal.OffsetOf(typeof(NativeMethods.JobObjectBasicProcessIdList), "NumberOfAssignedProcesses").ToInt32();
int numberOfProcessIdsInListOffset = Marshal.OffsetOf(typeof(NativeMethods.JobObjectBasicProcessIdList), "NumberOfProcessIdsInList").ToInt32();
int firstProcessIdOffset = Marshal.OffsetOf(typeof(NativeMethods.JobObjectBasicProcessIdList), "FirstProcessId").ToInt32();
int numberOfProcessesInJob = JobCountIncrement;
do
{
int infoSize = firstProcessIdOffset + (IntPtr.Size * numberOfProcessesInJob);
IntPtr infoPtr = IntPtr.Zero;
try
{
infoPtr = Marshal.AllocHGlobal(infoSize);
NativeMethods.FillMemory(infoPtr, (IntPtr)infoSize, 0);
Marshal.WriteInt32(infoPtr, numberOfAssignedProcessesOffset, numberOfProcessesInJob);
Marshal.WriteInt32(infoPtr, numberOfProcessIdsInListOffset, 0);
if (!NativeMethods.QueryInformationJobObject(
handle,
NativeMethods.JobObjectInfoClass.JobObjectBasicProcessIdList,
infoPtr,
infoSize,
IntPtr.Zero))
{
var error = Marshal.GetLastWin32Error();
if (error == NativeMethods.Constants.ERROR_MORE_DATA)
{
numberOfProcessesInJob += JobCountIncrement;
continue;
}
throw new Win32Exception(error);
}
int count = Marshal.ReadInt32(infoPtr, numberOfProcessIdsInListOffset);
if (count == 0)
return new int[0];
IntPtr[] ids = new IntPtr[count];
Marshal.Copy(infoPtr + firstProcessIdOffset, ids, 0, count);
return ids.Select(id => id.ToInt32()).ToArray();
}
finally
{
if (infoPtr != IntPtr.Zero)
Marshal.FreeHGlobal(infoPtr);
}
} while (true);
}
static NativeMethods.JobObjectBasicAccountingInformation GetJobObjectBasicAccountingInformation(SafeJobObjectHandle handle)
{
int infoSize = Marshal.SizeOf(typeof(NativeMethods.JobObjectBasicAccountingInformation));
IntPtr infoPtr = IntPtr.Zero;
try
{
infoPtr = Marshal.AllocHGlobal(infoSize);
if (!NativeMethods.QueryInformationJobObject(
handle,
NativeMethods.JobObjectInfoClass.JobObjectBasicAccountingInformation,
infoPtr,
infoSize,
IntPtr.Zero))
{
var error = Marshal.GetLastWin32Error();
if (error != NativeMethods.Constants.ERROR_MORE_DATA)
throw new Win32Exception(error);
}
return (NativeMethods.JobObjectBasicAccountingInformation)Marshal.PtrToStructure(infoPtr, typeof(NativeMethods.JobObjectBasicAccountingInformation));
}
finally
{
if (infoPtr != IntPtr.Zero)
Marshal.FreeHGlobal(infoPtr);
}
}
public JobObjectWaitHandle(SafeJobObjectHandle jobObject)
{
SafeWaitHandle = new SafeWaitHandle(jobObject.DangerousGetHandle(), false);
}
public JobObjectWaitHandle(SafeJobObjectHandle jobObject)
{
SafeWaitHandle = new SafeWaitHandle(jobObject.DangerousGetHandle(), false);
}
static int[] GetJobObjectProcessIds(SafeJobObjectHandle handle)
{
const int JobCountIncrement = 5;
int numberOfAssignedProcessesOffset = Marshal.OffsetOf(typeof(NativeMethods.JobObjectBasicProcessIdList), "NumberOfAssignedProcesses").ToInt32();
int numberOfProcessIdsInListOffset = Marshal.OffsetOf(typeof(NativeMethods.JobObjectBasicProcessIdList), "NumberOfProcessIdsInList").ToInt32();
int firstProcessIdOffset = Marshal.OffsetOf(typeof(NativeMethods.JobObjectBasicProcessIdList), "FirstProcessId").ToInt32();
int numberOfProcessesInJob = JobCountIncrement;
do
{
int infoSize = firstProcessIdOffset + (IntPtr.Size * numberOfProcessesInJob);
IntPtr infoPtr = IntPtr.Zero;
try
{
infoPtr = Marshal.AllocHGlobal(infoSize);
NativeMethods.FillMemory(infoPtr, (IntPtr)infoSize, 0);
Marshal.WriteInt32(infoPtr, numberOfAssignedProcessesOffset, numberOfProcessesInJob);
Marshal.WriteInt32(infoPtr, numberOfProcessIdsInListOffset, 0);
if (!NativeMethods.QueryInformationJobObject(
handle,
NativeMethods.JobObjectInfoClass.JobObjectBasicProcessIdList,
infoPtr,
infoSize,
IntPtr.Zero))
{
var error = Marshal.GetLastWin32Error();
if (error == NativeMethods.Constants.ERROR_MORE_DATA)
{
numberOfProcessesInJob += JobCountIncrement;
continue;
}
throw new Win32Exception(error);
}
int count = Marshal.ReadInt32(infoPtr, numberOfProcessIdsInListOffset);
if (count == 0)
{
return(new int[0]);
}
IntPtr[] ids = new IntPtr[count];
Marshal.Copy(infoPtr + firstProcessIdOffset, ids, 0, count);
return(ids.Select(id => id.ToInt32()).ToArray());
}
finally
{
if (infoPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(infoPtr);
}
}
} while (true);
}
static NativeMethods.JobObjectBasicAccountingInformation GetJobObjectBasicAccountingInformation(SafeJobObjectHandle handle)
{
int infoSize = Marshal.SizeOf(typeof(NativeMethods.JobObjectBasicAccountingInformation));
IntPtr infoPtr = IntPtr.Zero;
try
{
infoPtr = Marshal.AllocHGlobal(infoSize);
if (!NativeMethods.QueryInformationJobObject(
handle,
NativeMethods.JobObjectInfoClass.JobObjectBasicAccountingInformation,
infoPtr,
infoSize,
IntPtr.Zero))
{
var error = Marshal.GetLastWin32Error();
if (error != NativeMethods.Constants.ERROR_MORE_DATA)
{
throw new Win32Exception(error);
}
}
return((NativeMethods.JobObjectBasicAccountingInformation)Marshal.PtrToStructure(infoPtr, typeof(NativeMethods.JobObjectBasicAccountingInformation)));
}
finally
{
if (infoPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(infoPtr);
}
}
}
