Undocumented functions of NTDLL

2OO1, 18 February


Gridstore - NonStop Storage

NtSetIoCompletion
NtSetIoCompletion

NTSYSAPI 
NTSTATUS
NTAPI

NtSetIoCompletion(


  IN HANDLE               IoCompletionHandle,
  IN ULONG                CompletionKey,
  OUT PIO_STATUS_BLOCK    IoStatusBlock,
  IN NTSTATUS             CompletionStatus,
  IN ULONG                NumberOfBytesTransfered );



Function NtSetIoCompletion increments pending IO counter in IO Completion Object. It can be used to manual finish IO operation.


  • IoCompletionHandle
    •     HANDLE to IO Completion Object opened with IO_COMPLETION_MODIFY_STATE access.
  • CompletionKey
    •     User's defined key received by NtRemoveIoCompletion function.
  • IoStatusBlock
    •     IO result of call.
  • CompletionStatus
    •     IO operation status.
  • NumberOfBytesTransfered
    •     Number of bytes transfered in manually finished IO operation.


    Documented by:
    Tomasz Nowak



    Requirements:
    Library: ntdll.lib


    See also:
    NtCreateIoCompletion
    NtOpenIoCompletion
    NtQueryIoCompletion
    NtRemoveIoCompletion