3eb933400a
there are some cases that may lead to inconsistencies. Currently, only the master-slave method is a reliable sync method
120 lines
3.0 KiB
JavaScript
120 lines
3.0 KiB
JavaScript
var Engine;
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if (typeof window !== "undefined" && window !== null) {
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window.unprocessed_counter = 0;
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}
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if (typeof window !== "undefined" && window !== null) {
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window.unprocessed_exec_counter = 0;
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}
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if (typeof window !== "undefined" && window !== null) {
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window.unprocessed_types = [];
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}
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Engine = (function() {
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function Engine(HB, types) {
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this.HB = HB;
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this.types = types;
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this.unprocessed_ops = [];
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}
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Engine.prototype.parseOperation = function(json) {
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var type;
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type = this.types[json.type];
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if ((type != null ? type.parse : void 0) != null) {
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return type.parse(json);
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} else {
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throw new Error("You forgot to specify a parser for type " + json.type + ". The message is " + (JSON.stringify(json)) + ".");
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}
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};
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/*
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applyOpsBundle: (ops_json)->
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ops = []
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for o in ops_json
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ops.push @parseOperation o
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for o in ops
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if not o.execute()
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@unprocessed_ops.push o
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@tryUnprocessed()
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*/
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Engine.prototype.applyOpsCheckDouble = function(ops_json) {
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var o, _i, _len, _results;
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_results = [];
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for (_i = 0, _len = ops_json.length; _i < _len; _i++) {
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o = ops_json[_i];
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if (this.HB.getOperation(o.uid) == null) {
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_results.push(this.applyOp(o));
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} else {
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_results.push(void 0);
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}
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}
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return _results;
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};
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Engine.prototype.applyOps = function(ops_json) {
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return this.applyOp(ops_json);
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};
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Engine.prototype.applyOp = function(op_json_array, fromHB) {
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var o, op_json, _i, _len;
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if (fromHB == null) {
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fromHB = false;
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}
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if (op_json_array.constructor !== Array) {
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op_json_array = [op_json_array];
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}
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for (_i = 0, _len = op_json_array.length; _i < _len; _i++) {
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op_json = op_json_array[_i];
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if (fromHB) {
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op_json.fromHB = "true";
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}
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o = this.parseOperation(op_json);
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if (op_json.fromHB != null) {
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o.fromHB = op_json.fromHB;
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}
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if (this.HB.getOperation(o) != null) {
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} else if (((!this.HB.isExpectedOperation(o)) && (o.fromHB == null)) || (!o.execute())) {
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this.unprocessed_ops.push(o);
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if (typeof window !== "undefined" && window !== null) {
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window.unprocessed_types.push(o.type);
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}
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}
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}
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return this.tryUnprocessed();
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};
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Engine.prototype.tryUnprocessed = function() {
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var old_length, op, unprocessed, _i, _len, _ref;
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while (true) {
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old_length = this.unprocessed_ops.length;
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unprocessed = [];
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_ref = this.unprocessed_ops;
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for (_i = 0, _len = _ref.length; _i < _len; _i++) {
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op = _ref[_i];
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if (this.HB.getOperation(op) != null) {
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} else if ((!this.HB.isExpectedOperation(op) && (op.fromHB == null)) || (!op.execute())) {
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unprocessed.push(op);
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}
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}
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this.unprocessed_ops = unprocessed;
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if (this.unprocessed_ops.length === old_length) {
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break;
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}
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}
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if (this.unprocessed_ops.length !== 0) {
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return this.HB.invokeSync();
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}
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};
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return Engine;
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})();
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module.exports = Engine;
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