TN3270 Server Manual

ITI Communication Protocol

TN3270 Server Manual—424097-001

6-13

WRITEREAD [x] Procedure

A WRITEREAD procedure is processed by the Guardian TN3270 Server as a WRITE

request followed by a READ request from the application process.

filenumber

INT:value

is the number of the file where the WRITEREAD is to occur.

buffer

is the information to be written to the file and, when returned, buffer contains the

information read from the file.

write-count

INT:value

is the number of bytes to be written.

read-count

INT:value

is the number of bytes to be read.

count-read

is for waited I/O operations only. It returns the number of bytes returned to

buffer.

tag

INT(32):value

is for nowait I/O operations only. tag is a value that you specify which uniquely

identifies the operation associated with this WRITEREAD[x] procedure.

CALL WRITEREAD[x] (filenumber, buffer, write-count, read-count

[, count-read ] [, tag ])

INT .ref:* (for WRITEREAD)

STRING .EXT:ref:* (for WRITEREAD[x])

INT .ref:1 (for WRITEREAD)

INT .EXT:ref:1 (for WRITEREAD[x])