312 lines
9.3 KiB
JavaScript
312 lines
9.3 KiB
JavaScript
/**
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** ==============================
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** O O O OOOO
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** O O O O O O
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** O O O O O O
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** OOOO OOOO O OOO OOOO
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** O O O O O O O
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** O O O O O O O
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** OOOO OOOO O O OOOO
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** ==============================
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** Dr. Stefan Bosse http://www.bsslab.de
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**
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** COPYRIGHT: THIS SOFTWARE, EXECUTABLE AND SOURCE CODE IS OWNED
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** BY THE AUTHOR(S).
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** THIS SOURCE CODE MAY NOT BE COPIED, EXTRACTED,
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** MODIFIED, OR OTHERWISE USED IN A CONTEXT
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** OUTSIDE OF THE SOFTWARE SYSTEM.
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**
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** $AUTHORS: Stefan Bosse
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** $INITIAL: (C) 2006-2017 bLAB
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** $CREATED: 10-3-16 by sbosse.
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** $VERSION: 1.3.4
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**
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** $INFO:
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**
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** JAM Standalone Node VM
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**
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** $ENDOFINFO
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*/
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var onexit=false;
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var start=false;
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var options = {
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amp:false,
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aport:6000,
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connect:[],
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debug:false,
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verbose:0
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};
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global.config={simulation:false};
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var Io = Require('com/io');
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var Comp = Require('com/compat');
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var Db = Require('db/db');
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var Aios = Require('jam/aios');
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var Buf = Require('dos/buf');
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var Net = Require('dos/network');
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var Esprima = Require('parser/esprima');
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var Json = Require('jam/jsonfn');
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var Db = Require('db/db');
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var out = function (msg) { Io.out('[JAM] '+msg)};
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var jam = function (options) {
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var self=this;
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this.options = options||{};
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this.verbose = options.verbose||0;
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if (!this.options.id) this.options.id=Aios.aidgen();
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this.world = Aios.World.World([],{id:this.options.id,classes:options.classes||[]});
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this.node = Aios.Node.Node({id:this.options.id,position:{x:0,y:0}},true);
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this.world.addNode(this.node);
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this.run=false;
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this.loopnext=none;
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this.looprun=false;
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this.loop = function () {
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var loop = function () {
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self.looprun=true;
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var nexttime=Aios.scheduler();
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self.looprun=false;
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var curtime=Aios.time();
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if (self.options.verbose>1) self.out('loop: nexttime='+nexttime+
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' ('+(nexttime>0?nexttime-curtime:0)+')');
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if (nexttime>0) self.looprun=setTimeout(loop,nexttime-curtime);
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else if (nexttime<0) self.looprun=setImmediate(loop);
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else self.looprun=setTimeout(loop,1000);
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};
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self.loopnext = setTimeout(loop,1);
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};
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this.out=function (msg) {
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Io.out('[JAM '+self.options.id+'] '+msg)
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};
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this.err=function (msg,err) {
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self.out('Error: '+msg);
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throw (err||'Error');
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}
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this.warn=function (msg) {
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self.out('Warning: '+msg);
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}
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this.amp=options.amp;
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this.aport=options.aport||6000;
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}
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// Import analyzer class...
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var JamAnal = Require('jam/analyzer');
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JamAnal.current(Aios);
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jam.prototype.analyze=JamAnal.jamc.prototype.analyze;
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jam.prototype.syntax=JamAnal.jamc.prototype.syntax;
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/** Add agent class to the JAM world and create sandboxed constructors.
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* type constructor = function|string
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*/
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jam.prototype.addClass = function (name,constructor,env) {
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this.world.addClass(name,constructor,env);
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if (this.verbose) this.out('Agent class '+name+' added to world library.');
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};
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/** Create and start an agent from class ac with arguments.
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* Ac is either already loaded (i.e., ac specifies the class name) or
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* AC is supplied as a constructor function (ac), a class name, or a sandboxed constructor
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* {fun:function,mask:{}} object for a specific level.
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*
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* type of ac = string|object|function
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* type of args = * []
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* level = {0,1,2,3}
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*
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*/
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jam.prototype.create = function (ac,args,level) {
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var node=this.node,
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process=none,sac;
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if (level==undefined) level=1;
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if (Comp.obj.isFunction(ac) || Comp.obj.isObject(ac)) {
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// Create a sandboxed constructor function and agent process
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process = Aios.Code.createOn(node,ac,args,level);
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if (process) return process.agent.id;
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} else {
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// Use an already sandboxed constructor
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if (this.world.classes[ac])
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process = Aios.Code.createOn(node,this.world.classes[ac][level],args);
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else this.out('create: Cannot find agent class '+ac);
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if (process) {
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process.agent.ac=ac;
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return process.agent.id;
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} else
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this.out('create: Cannot find agent class '+ac+' for level '+level);
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return none;
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}
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}
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/** Read and compile agent class templates from file
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*
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*/
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jam.prototype.readClass = function (file) {
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var ac,
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text,
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modu={},
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m,p,
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env,
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interface,
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regex1,
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ast=null,
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all=null,
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off=null;
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if (this.options.verbose>0) this.out('Looking up agent class template(s) from '+file);
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modu=Require(file);
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if (Comp.obj.isEmpty(modu)) {
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if (this.options.verbose>0) this.out('Importing agent class template(s) from file '+file);
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if (Comp.string.get(file,0)!='/') file = './'+file;
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all=Io.read_file(file);
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ast=Esprima.parse(all, { tolerant: true, loc:true });
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modu=require(file);
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}
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if (!modu) this.out('Importing of agent class template(s) from '+file+' failed (empty).');
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for (m in modu) {
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ac=modu[m];
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env={};
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if (all) off=this.syntax.find(ast,'VariableDeclarator',m);
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if (off && off.loc) this.syntax.offset=off.loc.start.line-1;
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content = 'var ac = '+ac;
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syntax = Esprima.parse(content, {tolerant: true, loc:true });
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interface = this.analyze(syntax,{classname:m,level:2,verbose:this.options.verbose||0});
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for (var p in interface.activities) env[p]=p;
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with (env) { eval(content) };
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if (options.verbose>0) this.out('Adding agent class constructor '+m+' ('+(typeof ac)+').');
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this.addClass(m,ac,env);
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this.syntax.offset=0;
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}
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};
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/** Start the JAM scheduler
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*
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*/
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jam.prototype.start=function () {
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this.run=true;
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this.out('Starting ..');
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this.loop();
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}
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/** Start AMP service port
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*/
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jam.prototype.startAmp = function () {
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var self=this;
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var ip = 'localhost';
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this.out('Starting AMP server on port '+this.aport);
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this.amp = Aios.Chan.Amp({rcv:ip+':'+this.aport,snd_ip:ip,verbose:this.options.verbose});
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this.amp.receiver(function (handler) {
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var code,agentid,stat;
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if (!handler) return;
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if (self.options.verbose>0) { self.out('AMP: got request:'); console.log(handler) };
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switch (handler.cmd) {
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case Net.Command.PS_EXEC:
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code = Buf.buf_get_string(handler.buf);
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// console.log(code);
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// console.log(myJam.amp.url(handler.remote))
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self.node.receive(code);
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break;
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case Net.Command.PS_STUN:
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agentid = Buf.buf_get_string(handler.buf);
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stat=Aios.kill(agentid);
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if (stat) self.out('Agent '+agentid+' terminated.');
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break;
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}
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});
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}
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/** Stop the JAM scheduler
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*
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*/
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jam.prototype.stop=function () {
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this.run=false;
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this.out('Stopping ..');
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if (this.loopnext)
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clearTimeout(this.loopnext);
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}
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var Jam = function(options) {
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var obj = new jam(options);
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return obj;
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};
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function usage(error) {
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var msg='Agent JavaScript Machine'+NL;
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msg += 'usage: jam [options]'+NL;
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msg += ' -c <agentclass>.js : Load an agent class template from file'+NL;
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msg += ' -r <agentclass> [<arg>,<arg>,..] : Create an agent from a class template'+NL;
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msg += ' -A <port> : Start AMP service on specified port'+NL;
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msg += ' -L <dir> <from> <to> : Connect this node (from) to another (to) using AMP (url/port)'+NL;
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msg += ' -s : Start scheduler loop'+NL;
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msg += ' -v : Increase verbosity level'+NL;
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msg += ' -h -help --help : Print this help'+NL;
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msg += ' <dir> : N,S,W,E,NW,NE,SW,SE,UP,DOWN'+NL;
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out(msg);
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if (error) out(error);
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onexit=true;
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}
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Comp.args.parse(Io.getargs(),[
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[['-h','-help','--help'],0,function () {usage()}],
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['-v',0,function () {options.verbose++; out('Setting verbosity level to '+options.verbose); config.verbose=true;}],
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['-s',0,function () {start=true;}],
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['-d',0,function () {options.debug=true;}]
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]);
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var myJam = Jam(options);
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Comp.args.parse(Io.getargs(),[
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['-c',1,function (file) {
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if (options.debug)
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myJam.readClass(file);
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else try {
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myJam.readClass(file)
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} catch (e) {
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myJam.out('Compilation failed: '+e+'.');
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Io.exit();
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}
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}],
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['-A',1,function (port) {
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myJam.amp=true;
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myJam.aport=port;
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myJam.startAmp();
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}],
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['-L',3,function (dir,port1,port2) {
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var _options;
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switch (dir) {
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case 'N': dir=Aios.DIR.NORTH;break;
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case 'S': dir=Aios.DIR.SOUTH; break;
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case 'W': dir=Aios.DIR.WEST; break;
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case 'E': dir=Aios.DIR.EAST; break;
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default:
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usage('Invalid first argment of -L');
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}
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_options={rcv:port1,snd:port2,amp:true,verbose:options.verbose};
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myJam.world.connectPhy(dir,myJam.node,_options);
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}],
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['-r',2,function (ac,args) {
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try {
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if (args.length < 2) args='[]';
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var _args = Comp.array.map(Comp.string.split(',',Comp.string.trim(args,1,1)),function (arg) {
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try {var num=Number(arg); if (isNaN(num)) return arg; else return num;}
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catch (e) {return arg }
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});
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myJam.create(ac,_args)
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} catch (e) {
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myJam.out('Failed to start agent '+ac+' '+args+': '+e);
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}
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}],
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['-db',2,function (path,chan) {
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var res;
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myJam.db=Db.Sqlc(path,chan);
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myJam.db.init(function (res){
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console.log('init: '+res);
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myJam.db.exec('help',function (repl) {
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console.log(repl);
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});
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} );
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}]
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]);
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if (!onexit && start) myJam.start();
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