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.TH pvm_bufinfo 1 "May 1998" "Scilab // Group" "Scilab function"
.so ../sci.an
.SH NAME
pvm_bufinfo - Returns information about a message buffer.
.SH CALLING SEQUENCE
.nf
[bytes, msgtag, tid, info] = pvm_bufinfo(bufid)
.fi
.SH PARAMETERS
.TP 5
bufid : integer, specifying a particular message buffer
identifier.
.TP 5
bytes : integer, size of the message in bytes (non very useful inside
scilab).
.TP 4
msgtag : integer, label of the message. Useful when the message was
received with a wildcard msgtag.
.TP 6
tid : integer, task ID of the source of the message.
.TP 6
info : integer, status code returned by the routine. Values less than
zero indicate an error.
.SH DESCRIPTION
\fVpvm_bufinfo\fR returns information about the requested message
buffer. Typically it is used to determine facts about the last
received message such as its size or source. pvm_bufinfo is
especially useful when an application is able to receive any incoming
message, and the action taken depends on the source tid and the msgtag
associated with the message that comes in first. If pvm_bufinfo is
successful, info will be 0. If some error occurs then info will be <
0.
.SH EXAMPLE
.nf
[bytes, msgtag, tid, info] = pvm_info(bufid)
.fi
.SH SEE ALSO
pvm_recv
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