UOPBstreamWrite.C

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License
    This file is part of OpenFOAM.
 
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#include "UOPstream.H"
#include "PstreamGlobals.H"
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
bool Foam::UOPBstream::bufferIPCsend()
{
    // Uses double broadcast
    // 1. for the data size
    // 2. for the data itself
    // With this information, can determine and resize receive buffer
 
    PstreamGlobals::checkCommunicator(comm_, toProcNo_);
 
    // Broadcast #1 - data size
    // Same data type must be used in UIPBstream::bufferIPCrecv()
 
    int64_t count(sendBuf_.size());
    if (!PstreamGlobals::broadcast_int64(count, comm_))
    {
        FatalErrorInFunction
            << "Broadcast failure sending buffer size:"
            << label(count) << " comm:" << comm_ << nl
            << Foam::abort(FatalError);
        return false;
    }
 
    // Broadcast #2 - data content
    // - skip if there is no data to send
    if
    (
        (count > 0)  // ie, not empty
     && !UPstream::mpi_broadcast
        (
            sendBuf_.data(),
            sendBuf_.size(),  // same as count
            UPstream::dataTypes::type_byte,
            comm_
        )
    )
    {
        FatalErrorInFunction
            << "Broadcast failure sending buffer data:"
            << sendBuf_.size() << " comm:" << comm_ << nl
            << Foam::abort(FatalError);
        return false;
    }
 
    return true;
}
 
 
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
void Foam::UOPBstream::send(Foam::zero, int communicator, int root)
{
    if (UPstream::is_parallel(communicator))
    {
        int64_t count(0);
        PstreamGlobals::broadcast_int64(count, communicator, root);
    }
    else
    {
        // FatalError ?
    }
}
 
 
// ************************************************************************* //