03-02-2009
Thank you. These are simpler than what I have. Both solutions worked. The only caveat is that the first solution can case the program to terminate if a user input happens to include any non-numeric character. If you can control that then it's fine.
The second solution covers all basis as far as my testing went.
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LEARN ABOUT REDHAT
pvmfbufinfo
BUFINFO(3PVM) PVM Version 3.4 BUFINFO(3PVM)
NAME
pvm_bufinfo() - Returns information about a message buffer.
SYNOPSIS
C int info = pvm_bufinfo( int bufid, int *bytes, int *msgtag,
int *tid )
Fortran call pvmfbufinfo( bufid, bytes, msgtag, tid, info )
PARAMETERS
bufid Integer specifying a particular message buffer identifier.
bytes Integer returning the length in bytes of the body of the message. This will be equal to the actual size of the data packed, if
PvmDataRaw is used, otherwise it may include pad bytes.
msgtag Integer returning the message label. Useful when the message was received with a wildcard msgtag.
tid Integer returning the source of the message. Useful when the message was received with a wildcard tid.
info Integer status code returned by the routine. Values less than zero indicate an error.
DESCRIPTION
The routine pvm_bufinfo 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 success-
ful, info will be 0. If some error occurs then info will be < 0.
EXAMPLES
C:
bufid = pvm_recv( -1, -1 );
info = pvm_bufinfo( bufid, &bytes, &type, &source );
Fortran:
CALL PVMFRECV( -1, -1, BUFID )
CALL PVMFBUFINFO( BUFID, BYTES, TYPE, SOURCE, INFO )
ERRORS
This error condition can be returned by pvm_bufinfo.
PvmNoSuchBuf
specified buffer does not exist.
PvmBadParam
invalid argument
SEE ALSO
pvm_recv(3PVM)
30 August, 1993 BUFINFO(3PVM)