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Int 21 Fn 5F38 u - Named Pipes - Local DOSwaitnmpipe - Await Avail. Of P [N]
AX = 5F38h
DS:DX -> pipe name
BX:CX = timeout value
Return: CF clear if successful
CF set if error
AX = error code
Notes: when a client gets a return code of ERROR_PIPE_BUSY on attempting to
open a pipe, it should issue this call to wait until the pipe
instance becomes available again; on return from this call, the
client must attempt to open the pipe once again
this function was introduced by LAN Manager but is also supported by
the Novell DOS Named Pipe Extender, Banyan VINES, OS/2 Virtual DOS
Machines, and others
See Also: AX=5F37h,AX=5F39h
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