WRITE( ) method

Writes data to the socket.

Return type: LOGICAL

Applies to: Socket object handle

Syntax

WRITE( buffer , position , bytes-to-write )

buffer

A MEMPTR expression which contains data which should be written to the socket.

position

An integer expression greater than 0 that indicates the starting byte position within buffer which should be written to the socket.

bytes-to-write

An integer expression that specifies the number of bytes to be written to the socket.

WRITE( ) returns TRUE if the write operation succeeded normally and returns FALSE otherwise. An error can occur if:

The position parameter is not greater than 0
The amount of information requested to write exceeds the amount of data in the buffer
Writing to the socket fails

This method expects buffer to identify a MEMPTR variable which already has a region of memory associated with it. The developer must call the SET-SIZE statement to allocate memory and associate it with a MEMPTR variable. It is the responsibility of the developer to free this memory, also via the SET-SIZE statement. The WRITE method will fail if the size of buffer is less than bytes-to-write.

Even if the WRITE( ) method returns TRUE, not all the bytes may have actually been written. To find out how many bytes were written, check the BYTES-WRITTEN attribute.

OpenEdge Release 10.2B

Copyright © 2009 Progress Software Corporation