Undocumented functions of NTDLL

2OO1, 17 January


Gridstore - NonStop Storage

NtWaitForMultipleObjects
NtWaitForMultipleObjects

NTSYSAPI 
NTSTATUS
NTAPI

NtWaitForMultipleObjects(


  IN ULONG                ObjectCount,
  IN PHANDLE              ObjectsArray,
  IN OBJECT_WAIT_TYPE     WaitType,
  IN BOOLEAN              Alertable,
  IN PLARGE_INTEGER       TimeOut OPTIONAL );



  • ObjectCount
    •     Number of objects in ObjectsArray array.
  • ObjectsArray
    •     Pointer to array of HANDLE. Each must be opened with SYNCHRONIZE access.
  • WaitType
    •     Can be WaitAllObjects or WaitAnyObject.
  • Alertable
    •     If set, thread is signaled (APC routines queued for this thread are executed).
  • TimeOut
    •     Time-out interval.


    NtWaitForMultipleObjects is used typically to response for notyfications. For synchronization purposes you should use NtWaitForSingleObject.


    Documented by:
    Tomasz Nowak



    Requirements:
    Library: ntdll.lib


    See also:
    NtSignalAndWaitForSingleObject
    NtWaitForSingleObject
    OBJECT_WAIT_TYPE