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ELrecv.h

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#ifndef FWCore_MessageService_ELrecv_h
#define FWCore_MessageService_ELrecv_h


// ----------------------------------------------------------------------
//
// ELrecv       is a METHOD (not a class!) which the receiver of packets on
//              the client side is to call when it gets an error message packet
//              sent by ELsend.
//
//              The choice of making this a global METHOD rather than a functor
//              class may in some cases make it easier to link to this from
//              non-C++ code.
//
// Usage:
//
// (0)  Define "clients" and "server" such that multiple clients each run
//      user code which will issue ErrorLogger messages, and a single server
//      is to amalgamated those messages into a single flow with unified
//      statistics output.
//
// (1)  Each client connects (one or more) ELcollected destinations to the
//      ELadministrator.  These can be controlled in terms of filtering,
//      throttling and so forth.  The semantics are like those for ELoutput.
//
// (2)  The client process must have a method ELsend (int n, char* data) which
//      moves n bytes of data to the server.
//              If namepaces are enabled, ELsend is in namdspace zmel.
//
// (3)  The server must be set up such that whenever one of these chunks of
//      data is moved to it, it calls ELrecv (n, data).
//
// (4)  The server process sets up its own ELadministrator, and attaches
//      whatever destinations it wants to have.
//
// (*)  The effect of an error message on the client is that ELrecv unravels
//      the data into the individual items that were supplied, and issues an
//      error message which is identical to the error message that was issued
//      on the client.  Thus all these messages end up amalgamated.
//
// 2/29/00 mf   Created file
// 3/16/00 mf   Added signature with localModule name.
//
// ----------------------------------------------------------------------

#include "FWCore/MessageLogger/interface/ELstring.h"

namespace edm {       
namespace service {       

void ELrecv ( int nbytes, const char * data );
void ELrecv ( int nbytes, const char * data, ELstring localModule );

}        // end of namespace service
}        // end of namespace edm


#endif // FWCore_MessageService_ELrecv_h

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