/usr/include/DrawServ/drawserv.h is in ivtools-dev 1.2.11a1-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2004 Scott E. Johnston
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the names of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* DrawServ - Unidraw derived from OverlayUnidraw for DrawServ library
*/
#ifndef drawserv_h
#define drawserv_h
#include <OverlayUnidraw/ovunidraw.h>
#include <stdio.h>
#include <OS/table.h>
declareTable(GraphicIdTable,int,void*)
declareTable(SessionIdTable,int,void*)
declareTable(CompIdTable,void*,void*);
//: Unidraw specialized for DrawServ
// Unidraw (OverlayUnidraw) specialized for DrawServ application.
// Networked application of the Unidraw framework.
class AttributeValueList;
class ComTerp;
class DrawLink;
class DrawLinkList;
class GraphicId;
class GraphicIdList;
#if !defined (HOST_NAME_MAX)
# define HOST_NAME_MAX 256
#endif /* !HOST_NAME_MAX */
class DrawServ : public OverlayUnidraw {
public:
DrawServ(
Catalog*, int& argc, char** argv,
OptionDesc* = nil, PropertyData* = nil
);
DrawServ(Catalog*, World*);
virtual ~DrawServ();
void Init();
#ifdef HAVE_ACE
DrawLink* linkup(const char* hostname, int portnum,
int state, int local_id=-1, int remote_id=-1,
ComTerp* comterp=nil);
// Create new link to remote drawserv, return -1 if error
// state: 0==new_link, 1==one_way, 2==two_way.
// Let DrawLink assign local_id by passing -1 for local_id.
// The local_id argument is for verification purposes once
// two-way link is established.
int linkdown(DrawLink* link);
// shut down existing link to remote drawserv
DrawLink* linkget(int local_id, int remote_id=-1);
// return pointer to existing DrawLink
DrawLink* linkget(const char* hostname, int portnum);
// return pointer to existing DrawLink
DrawLink* linkget(unsigned int sessionid);
// return pointer to existing DrawLink given a sessionid.
void linkdump(FILE*);
// dump text table of DrawLink's
virtual void ExecuteCmd(Command*);
// execute Command's locally, and on remote linked DrawServ's.
virtual void DistributeCmdString(const char* cmdstring, DrawLink* orglink=nil);
// send command string to every remote DrawServ (except where it came from).
virtual void SendCmdString(DrawLink* link, const char* cmdstring);
// execute command string on one remote DrawServ
DrawLinkList* linklist() { return _linklist; }
// return pointer to list of DrawLink's
GraphicIdTable* gridtable() { return _gridtable; }
// return pointer to table of GraphicId's.
SessionIdTable* sessionidtable() { return _sessionidtable; }
// return pointer to table of session id's that map to SessionId's
CompIdTable* compidtable() { return _compidtable; }
// return pointer to table that map from GraphicComp* to GraphicId*
void sessionid_register(DrawLink* link);
// register all sessionid's used by this DrawServ with remote DrawServ
void sessionid_register_handle(DrawLink* link, unsigned int sid,
unsigned int osid, int pid, const char* user,
const char* host, int hostid);
// handle request to register unique session id
void sessionid_register_propagate(DrawLink* link, unsigned int sid,
unsigned int osid, int pid,
const char* user, const char *host, int hostid);
// propagate a newly registered session id to all other DrawLink's
unsigned int sessionid() { return _sessionid; }
// current unique session id.
void remove_sids(DrawLink*);
// remove all SessionId's associated with this DrawLink
void grid_message(GraphicId* grid);
// generate graphic id selection message
void grid_message_handle(DrawLink* link, unsigned int id, unsigned int selector,
int state, unsigned int newselector=0);
// handle graphic id selection message
void grid_message_callback(DrawLink* link, unsigned int id, unsigned int selector,
int state, unsigned int oldselector);
// callback for graphic id selection message
#if 0
void grid_message_propagate(DrawLink* link, unsigned int id, unsigned int selector,
int state, unsigned int otherselector=0);
// propagate graphic id selection message
#endif
static unsigned int unique_grid();
// generate unique graphic id.
static int test_grid(unsigned int id);
// test candidate graphic id for local uniqueness
static unsigned int unique_sessionid();
// generate unique session id.
static int test_sessionid(unsigned int id);
// test candidate session id for local uniqueness
static unsigned int GraphicIdMask;
static unsigned int SessionIdMask;
void print_gridtable();
// print contents of table of GraphicId's
void print_sidtable();
// print contents of table of SessionId's
int comdraw_port() { return _comdraw_port; }
// return port used for comdraw command interpreter
boolean cycletest(unsigned int sid, const char* host, const char* user, int pid);
// test for new incoming link that would establish a cycle
boolean selftest(const char* host, unsigned int portnum);
// test if a new outgoing link is really to yourself
virtual boolean PrintAttributeList(ostream& out, AttributeList* list);
// alternate method for serializing an AttributeList
// returns false if really not there.
protected:
DrawLinkList* _linklist;
// DrawLink list
GraphicIdTable* _gridtable;
// table of all GraphicId's.
// maps from id to GraphicId*
SessionIdTable* _sessionidtable;
// table of all session id's.
// maps from session id to SessionId*
CompIdTable* _compidtable;
// table of all GraphicComp's associated with a GraphicId.
// maps from GraphicComp* to GraphicId*
int _sessionid;
// unique session id.
int _comdraw_port;
// port used for comdraw command interpreter
#endif /* HAVE_ACE */
};
#endif
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