IHostThreadPoolManager::QueueUserWorkItem Method
Queues a function for execution, and specifies an object containing data to be used by that function. The function executes when a thread becomes available.
HRESULT QueueUserWorkItem (
[in] LPTHREAD_START_ROUTINE Function,
[in] PVOID Context,
[in] ULONG Flags
);
Parameters
Function
[in] A function pointer that represents the function to execute.Context
[in] An object that contains data to be used by Function.Flags
[in] One of the flags values, as defined for the Win32 QueueUserWorkItem method, that control execution.
Return Value
HRESULT |
Description |
|---|---|
S_OK |
QueueUserWorkItem returned successfully. |
HOST_E_CLRNOTAVAILABLE |
The common language runtime (CLR) has not been loaded into a process, or the CLR is in a state in which it cannot run managed code or process the call successfully. |
HOST_E_TIMEOUT |
The call timed out. |
HOST_E_NOT_OWNER |
The caller does not own the lock. |
HOST_E_ABANDONED |
An event was canceled while a blocked thread or fiber was waiting on it. |
E_FAIL |
An unknown catastrophic failure occurred. When a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE. |
Remarks
QueueUserWorkItem queues a work item to a worker thread in the thread pool. Its signature and parameter types are identical to those of the corresponding Win32 function, which has the same name. For more information, see the Windows Platform documentation.
Requirements
Platforms: See .NET Framework System Requirements.
Header: MSCorEE.h
Library: Included as a resource in MSCorEE.dll
.NET Framework Versions: 4, 3.5 SP1, 3.5, 3.0 SP1, 3.0, 2.0 SP1, 2.0