Guardian Procedure Calls Reference Manual

Parameters
filenum
input
INT:value
is a number of an open file that identifies the file to be written.
buffer
input
STRING .EXT64:ref:*
is an array containing the information to be written to the file.
write-count
input
INT(32):value
is the number of bytes to be written to the file:
{0:57344} for disk files (see also Disk File Considerations (page 527)
{0:32755} for terminal files
{0:57344} for other nondisk files (device-dependent)
{0:2097152} for interprocess files
{0:80} for the operator console
For key-sequenced and relative files, 0 is invalid. For entry-sequenced files, 0 indicates an
empty record.
count-written
output
INT(32) .EXT64:ref:1
for wait I/O only, returns a count of the number of bytes written to the file.
tag
input
INT(64):value
for nowait I/O only, is a value you define that uniquely identifies the operation associated
with this FILE_WRITE64_ procedure call.
NOTE: The system stores the tag value until the I/O operation completes. It then returns the
tag information to the program in either the tag parameter of the call to FILE_AWAITIO64_
or the tag field of the completion-info parameter of the call to FILE_COMPLETEL_, thus
indicating that the operation finished.
FILE_WRITE64_ Procedure 525