DataBlade API Programmer's Manual

DataBlade API Programmer's Manual
Chapter 3: Handling Smart Large Objects

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Using Operating-System Files

The DataBlade API supports the following types of functions for operating-system files and smart large objects:

Copying operating-system file to a smart large object: mi_lo_from_file(), mi_lo_from_file_by_lofd()
Copying a smart large object to an operating-system file: mi_lo_to_file(), mi_lo_filename()
Copying an operating-system file to or from the client or server computer: mi_file_to_file()

The operating-system functions have a set of file modes that are distinct from the open modes of smart large objects, as the following table shows.


File Modes for Operating-System Files	Purpose
MI_O_EXCL	Fail if the file already exists
MI_O_APPEND	Append to the end of file
MI_O_TRUNC	Truncate to zero if file exists
MI_O_RDWR	Read/write mode (default)
MI_O_RDONLY	Read-only mode (copying from operating-system files only)
MI_O_WRONLY	Write-only mode (copying to operating-system files only)
MI_O_TEXT	Text mode (default off)
MI_O_CLIENT_FILE	File is on client computer (default)
MI_O_SERVER_FILE	File is on server computer

DataBlade API Programmer's Manual, version 9.1
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