DataBlade API Programmer's Manual Chapter 12: DataBlade API Function Descriptions

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#include "miloback.h"

...
char *mi_large_object_map(conn, lodesc, len, prot, off, flags)

		MI_CONNECTION *conn;

		MI_LODESC lodesc;

		mi_integer len;

		mi_integer prot;

		mi_integer off;

		mi_integer flags; 


conn
is a pointer to the connection descriptor that a previous call to mi_open() or mi_server_connect() has established.

lodesc
is the descriptor for the smart large object returned by a previous call to mi_large_object_open().

len
is the number of bytes to map. The amount of data to map is constrained by the amount of application memory available.

prot
indicates whether the mapped data is readable, writable, or both. Set prot to MI_LO_PROT_READ to specify readable data. You can set it to MI_LO_PROT_WRITE to indicate writable data or use both values, separated by OR, to indicate read/write access, but MI_LO_PROT_WRITE has no effect on the data.

off
is the byte address in the object from which to begin mapping data.

flags
must be MI_LO_MAP_PRIVATE.





 



Valid in Client Application?

Valid in Server Routine?

Yes
Yes