extern rmr_mbuf_t* mcl_get_msg( void* vctx, rmr_mbuf_t* msg, int timeout );
extern void* mcl_mk_context( char* dir );
extern int mcl_fifo_read1( void* vctx, int mtype, char* ubuf, int ublen, int long_hdr );
extern rmr_mbuf_t* mcl_get_msg( void* vctx, rmr_mbuf_t* msg, int timeout );
extern void* mcl_mk_context( char* dir );
extern int mcl_fifo_read1( void* vctx, int mtype, char* ubuf, int ublen, int long_hdr );