File I/O

eRTOS allows for file input and output (I/O). You can write to the supported file I/O functions. The API delivers low-overhead, fast access to Windows file I/O capabilities using standard APIs. A subset of CreateFile flags is supported with file I/O. Please refer to the Reference Guide for more details. File I/O does not include support for asynchronous file operations.

Because Process applications have no current-directory notion, real-time file I/O requests must use fully qualified path names, such as:

c:\temp\MyFile.txt (for a file system object)

\\.\MyDevice0 (for a device object)

Process file I/O calls translate Windows names such as c:\MyFile.txt and \\.\MyDevice0 to Windows internal names \??\c:\MyFile.txt and \Device\MyDevice0, respectively.