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The body of a message (i.e., the message content) to be sent
is built up from zero or more input files or procedures. The input
files and procedures are read or invoked in the order specified in the
item list passed to PMDF_send and the message body built
up by appending the next input source to the end of the previous input
source. A blank line will be inserted in the message as a separator
between input sources if the PMDF_BLANK item is requested
in the item list. The PMDF_MSG_FILE and
PMDF_MSG_PROC items are used to specify the name or
address of input files or procedures.
An initial message header can be supplied via either an input file or
procedure. The message header will then be modified as needed when the
message is enqueued. The PMDF_HDR_FILE and
PMDF_HDR_PROC items are used to specify the name or
address of an input file or procedure. If an initial message header is
to be supplied, it must appear in the item list before any
PMDF_MSG_FILE or PMDF_MSG_PROC items. A blank
line must be supplied at the end of the message header or at the start
of the first message body input source. This blank line will
automatically be supplied when the PMDF_BLANK item code is
specified in the item list.
The PMDF_MODE_ and PMDF_ENC_ items control
the access mode and encodings applied to message body input sources.
These items set the current access mode and encoding to be applied to
all subsequent input sources which appear in the item list. The default
access mode is PMDF_MODE_UNKNOWN which uses a text mode
access and the default encoding is PMDF_ENC_UNKNOWN which
results in no encoding of the data. The block access mode will not be
applied to input procedures; the access mode and encodings do not apply
to input sources for an initial message header which is always accessed
using the default access mode and never encoded.
Input procedures use the calling format:
status = proc (bufadr,
buflen) where
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