INtime® 3.1 Software - tenAsys

INtime 3.1 Software
Low-level calls
System call
knCreateRtMailbox
knDeleteRtMailbox
knSendRtData
knSendRtPriorityData
knWaitForRtData
Description
Creates a kernel mailbox with the given specifications.
Deletes the kernel mailbox associated with the given kernel
handle.
Sends a data message to the given kernel mailbox.
Sends high-priority data to a kernel mailbox, bypassing the
queue.
Requests a message from a specific kernel mailbox.
Memory management
The Windows and RT portions of INtime applications can share regions of memory
created by the RT portion of INtime applications.
These system calls implement the flat-model memory management interface for RT
applications. There are additional calls for the management of page-aligned segments
for sharing between applications (both RT and Windows applications). Also included
are the calls that an application requires to allocate memory from its own virtual
segment.
Physical memory may be allocated and mapped into an application’s virtual segment
and then an RTHANDLE created for this allocated memory so that it may be shared
between applications (both RT and Windows applications)
NTX calls
System call
ntxMapRtSharedMemory
ntxMapRtSharedMemoryEx
ntxGetRtSize
ntxUnmapRtSharedMemory
ntxCopyRtData
Description
Obtains a Windows pointer to the section of RT memory defined
by the call’s SharedRTMemoryHandle parameter.
Determines the size of the call’s RT object parameter
Removes the mapping of a RT memory section and returns
Windows system resources mapped to that memory.
Copies data directly to/from Windows application space
from/to an RT memory object.
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