Method write

Engine/source/platformPOSIX/POSIXFileio.cpp:787–810

----------------------------------------------------------------------------- Write to a file. The number of bytes to write is passed in size, the data is passed in src. The number of bytes written is available in bytesWritten if a non-Null pointer is provided. -----------------------------------------------------------------------------

// pointer is provided.
//-----------------------------------------------------------------------------
File::FileStatus File::write(U32 size, const char *src, U32 *bytesWritten)
{
    // JMQ: despite the U32 parameters, the maximum filesize supported by this
    // function is probably the max value of S32, due to the unix syscall
    // api.
    AssertFatal(Closed != currentStatus, "File::write: file closed");
    AssertFatal(NULL != handle, "File::write: invalid file handle");
    AssertFatal(NULL != src, "File::write: NULL source pointer");
    AssertFatal(true == hasCapability(FileWrite), "File::write: file lacks capability");
    AssertWarn(0 != size, "File::write: size of zero");

    if ((Ok != currentStatus && EOS != currentStatus) || 0 == size)
        return currentStatus;
    else
    {
        S32 numWritten = x86UNIXWrite(*((int *)handle), src, size);
        if (numWritten < 0)
            return setStatus();

        if (bytesWritten)
            *bytesWritten = static_cast<U32>(numWritten);
        return currentStatus = Ok;
    }
}

//-----------------------------------------------------------------------------
// Self-explanatory.  JMQ: No explanation needed.  Move along.  These aren't