blob: 07456f07a535099d31996e1d8ef78ad9338afa5a [file] [log] [blame]
//@ defaultQuickRun
// Copyright 2006-2008 the V8 project authors. All rights reserved.
// Copyright 2014 Apple Inc.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// This is a JavaScript implementation of the Richards
// benchmark from:
//
// http://www.cl.cam.ac.uk/~mr10/Bench.html
//
// The benchmark was originally implemented in BCPL by
// Martin Richards. It was then ported to JavaScript by the
// V8 project authors, and then subsequently it was modified
// to use getters and setters by WebKit authors.
let __exceptionCounter = 0;
function randomException() {
__exceptionCounter++;
if (__exceptionCounter % 2500 === 0)
throw new Error("blah");
}
noInline(randomException);
/**
* The Richards benchmark simulates the task dispatcher of an
* operating system.
**/
function runRichards() {
var scheduler = new Scheduler();
scheduler.addIdleTask(ID_IDLE, 0, null, COUNT);
var queue = new Packet(null, ID_WORKER, KIND_WORK);
queue = new Packet(queue, ID_WORKER, KIND_WORK);
scheduler.addWorkerTask(ID_WORKER, 1000, queue);
queue = new Packet(null, ID_DEVICE_A, KIND_DEVICE);
queue = new Packet(queue, ID_DEVICE_A, KIND_DEVICE);
queue = new Packet(queue, ID_DEVICE_A, KIND_DEVICE);
scheduler.addHandlerTask(ID_HANDLER_A, 2000, queue);
queue = new Packet(null, ID_DEVICE_B, KIND_DEVICE);
queue = new Packet(queue, ID_DEVICE_B, KIND_DEVICE);
queue = new Packet(queue, ID_DEVICE_B, KIND_DEVICE);
scheduler.addHandlerTask(ID_HANDLER_B, 3000, queue);
scheduler.addDeviceTask(ID_DEVICE_A, 4000, null);
scheduler.addDeviceTask(ID_DEVICE_B, 5000, null);
scheduler.schedule();
let queueCount;
try {
queueCount = scheduler.queueCount;
} catch(e) {
queueCount = scheduler.queueCount;
}
let holdCount;
try {
holdCount = scheduler.holdCount;
} catch(e) {
holdCount = scheduler.holdCount;
}
if (queueCount != EXPECTED_QUEUE_COUNT ||
holdCount != EXPECTED_HOLD_COUNT) {
var msg =
"Error during execution: queueCount = " + queueCount +
", holdCount = " + holdCount + ".";
throw new Error(msg);
}
}
var COUNT = 1000;
/**
* These two constants specify how many times a packet is queued and
* how many times a task is put on hold in a correct run of richards.
* They don't have any meaning a such but are characteristic of a
* correct run so if the actual queue or hold count is different from
* the expected there must be a bug in the implementation.
**/
var EXPECTED_QUEUE_COUNT = 2322;
var EXPECTED_HOLD_COUNT = 928;
/**
* A scheduler can be used to schedule a set of tasks based on their relative
* priorities. Scheduling is done by maintaining a list of task control blocks
* which holds tasks and the data queue they are processing.
* @constructor
*/
function Scheduler() {
this._queueCount = 0;
this._holdCount = 0;
this._blocks = new Array(NUMBER_OF_IDS);
this._list = null;
this._currentTcb = null;
this._currentId = null;
}
var ID_IDLE = 0;
var ID_WORKER = 1;
var ID_HANDLER_A = 2;
var ID_HANDLER_B = 3;
var ID_DEVICE_A = 4;
var ID_DEVICE_B = 5;
var NUMBER_OF_IDS = 6;
var KIND_DEVICE = 0;
var KIND_WORK = 1;
Scheduler.prototype.__defineGetter__("queueCount", function() { randomException(); return this._queueCount; });
Scheduler.prototype.__defineSetter__("queueCount", function(value) { this._queueCount = value; });
Scheduler.prototype.__defineGetter__("holdCount", function() { randomException(); return this._holdCount; });
Scheduler.prototype.__defineSetter__("holdCount", function(value) { this._holdCount = value; });
Scheduler.prototype.__defineGetter__("blocks", function() { randomException(); return this._blocks; });
Scheduler.prototype.__defineSetter__("blocks", function(value) { this._blocks = value; });
Scheduler.prototype.__defineGetter__("list", function() { randomException(); return this._list; });
Scheduler.prototype.__defineSetter__("list", function(value) { this._list = value; });
Scheduler.prototype.__defineGetter__("currentTcb", function() { randomException(); return this._currentTcb; });
Scheduler.prototype.__defineSetter__("currentTcb", function(value) { this._currentTcb = value; });
Scheduler.prototype.__defineGetter__("currentId", function() { randomException(); return this._currentId; });
Scheduler.prototype.__defineSetter__("currentId", function(value) { this._currentId = value; });
/**
* Add an idle task to this scheduler.
* @param {int} id the identity of the task
* @param {int} priority the task's priority
* @param {Packet} queue the queue of work to be processed by the task
* @param {int} count the number of times to schedule the task
*/
Scheduler.prototype.addIdleTask = function (id, priority, queue, count) {
this.addRunningTask(id, priority, queue, new IdleTask(this, 1, count));
};
/**
* Add a work task to this scheduler.
* @param {int} id the identity of the task
* @param {int} priority the task's priority
* @param {Packet} queue the queue of work to be processed by the task
*/
Scheduler.prototype.addWorkerTask = function (id, priority, queue) {
this.addTask(id, priority, queue, new WorkerTask(this, ID_HANDLER_A, 0));
};
/**
* Add a handler task to this scheduler.
* @param {int} id the identity of the task
* @param {int} priority the task's priority
* @param {Packet} queue the queue of work to be processed by the task
*/
Scheduler.prototype.addHandlerTask = function (id, priority, queue) {
this.addTask(id, priority, queue, new HandlerTask(this));
};
/**
* Add a handler task to this scheduler.
* @param {int} id the identity of the task
* @param {int} priority the task's priority
* @param {Packet} queue the queue of work to be processed by the task
*/
Scheduler.prototype.addDeviceTask = function (id, priority, queue) {
this.addTask(id, priority, queue, new DeviceTask(this))
};
/**
* Add the specified task and mark it as running.
* @param {int} id the identity of the task
* @param {int} priority the task's priority
* @param {Packet} queue the queue of work to be processed by the task
* @param {Task} task the task to add
*/
Scheduler.prototype.addRunningTask = function (id, priority, queue, task) {
this.addTask(id, priority, queue, task);
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
currentTcb.setRunning();
};
/**
* Add the specified task to this scheduler.
* @param {int} id the identity of the task
* @param {int} priority the task's priority
* @param {Packet} queue the queue of work to be processed by the task
* @param {Task} task the task to add
*/
Scheduler.prototype.addTask = function (id, priority, queue, task) {
let list;
try {
list = this.list;
} catch(e) {
list = this.list;
}
this.currentTcb = new TaskControlBlock(list, id, priority, queue, task);
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
this.list = currentTcb;
let blocks;
try {
blocks = this.blocks;
} catch(e) {
blocks = this.blocks;
}
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
blocks[id] = currentTcb;
};
/**
* Execute the tasks managed by this scheduler.
*/
Scheduler.prototype.schedule = function () {
let list;
try {
list = this.list;
} catch(e) {
list = this.list;
}
this.currentTcb = list;
while (true) {
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
if (currentTcb == null)
break;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
if (currentTcb.isHeldOrSuspended()) {
let link;
try {
link = currentTcb.link;
} catch(e) {
link = currentTcb.link;
}
this.currentTcb = link;
} else {
let id;
try {
id = currentTcb.id;
} catch(e) {
id = currentTcb.id;
}
this.currentId = id;
this.currentTcb = currentTcb.run();
}
}
};
/**
* Release a task that is currently blocked and return the next block to run.
* @param {int} id the id of the task to suspend
*/
Scheduler.prototype.release = function (id) {
let blocks;
try {
blocks = this.blocks;
} catch(e) {
blocks = this.blocks;
}
var tcb = blocks[id];
if (tcb == null) return tcb;
tcb.markAsNotHeld();
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
if (tcb.priority > currentTcb.priority) {
return tcb;
} else {
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
return currentTcb;
}
};
/**
* Block the currently executing task and return the next task control block
* to run. The blocked task will not be made runnable until it is explicitly
* released, even if new work is added to it.
*/
Scheduler.prototype.holdCurrent = function () {
let holdCount;
try {
holdCount = this.holdCount;
} catch(e) {
holdCount = this.holdCount;
}
holdCount++;
this.holdCount = holdCount;
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
currentTcb.markAsHeld();
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
let link;
try {
link = currentTcb.link;
} catch(e) {
link = currentTcb.link;
}
return link;
};
/**
* Suspend the currently executing task and return the next task control block
* to run. If new work is added to the suspended task it will be made runnable.
*/
Scheduler.prototype.suspendCurrent = function () {
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
currentTcb.markAsSuspended();
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
return currentTcb;
};
/**
* Add the specified packet to the end of the worklist used by the task
* associated with the packet and make the task runnable if it is currently
* suspended.
* @param {Packet} packet the packet to add
*/
Scheduler.prototype.queue = function (packet) {
let blocks;
try {
blocks = this.blocks;
} catch(e) {
blocks = this.blocks;
}
let id;
try {
id = packet.id;
} catch(e) {
id = packet.id;
}
var t = blocks[id];
if (t == null) return t;
let queueCount;
try {
queueCount = this.queueCount;
} catch(e) {
queueCount = this.queueCount;
}
queueCount++;
this.queueCount = queueCount;
try {
packet.link = null;
} catch(e) { }
let currentId;
try {
currentId = this.currentId;
} catch(e) {
currentId = this.currentId;
}
try {
packet.id = currentId;
} catch(e) { }
let currentTcb;
try {
currentTcb = this.currentTcb;
} catch(e) {
currentTcb = this.currentTcb;
}
return t.checkPriorityAdd(currentTcb, packet);
};
/**
* A task control block manages a task and the queue of work packages associated
* with it.
* @param {TaskControlBlock} link the preceding block in the linked block list
* @param {int} id the id of this block
* @param {int} priority the priority of this block
* @param {Packet} queue the queue of packages to be processed by the task
* @param {Task} task the task
* @constructor
*/
function TaskControlBlock(link, id, priority, queue, task) {
this._link = link;
this._id = id;
this._priority = priority;
this._queue = queue;
this._task = task;
if (queue == null) {
try {
this.state = STATE_SUSPENDED;
} catch(e) { }
} else {
try {
this.state = STATE_SUSPENDED_RUNNABLE;
} catch(e) { }
}
}
/**
* The task is running and is currently scheduled.
*/
var STATE_RUNNING = 0;
/**
* The task has packets left to process.
*/
var STATE_RUNNABLE = 1;
/**
* The task is not currently running. The task is not blocked as such and may
* be started by the scheduler.
*/
var STATE_SUSPENDED = 2;
/**
* The task is blocked and cannot be run until it is explicitly released.
*/
var STATE_HELD = 4;
var STATE_SUSPENDED_RUNNABLE = STATE_SUSPENDED | STATE_RUNNABLE;
var STATE_NOT_HELD = ~STATE_HELD;
TaskControlBlock.prototype.__defineGetter__("link", function() { randomException(); return this._link; });
TaskControlBlock.prototype.__defineGetter__("id", function() { randomException(); return this._id; });
TaskControlBlock.prototype.__defineGetter__("priority", function() { return this._priority; });
TaskControlBlock.prototype.__defineGetter__("queue", function() { randomException(); return this._queue; });
TaskControlBlock.prototype.__defineSetter__("queue", function(value) { this._queue = value; });
TaskControlBlock.prototype.__defineGetter__("task", function() { return this._task; });
TaskControlBlock.prototype.__defineGetter__("state", function() { randomException(); return this._state; });
TaskControlBlock.prototype.__defineSetter__("state", function(value) { this._state = value; randomException(); });
TaskControlBlock.prototype.setRunning = function () {
try {
this.state = STATE_RUNNING;
} catch(e) { }
};
TaskControlBlock.prototype.markAsNotHeld = function () {
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
try {
this.state = state & STATE_NOT_HELD;
} catch(e){}
};
TaskControlBlock.prototype.markAsHeld = function () {
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
try {
this.state = state | STATE_HELD;
} catch(e) {}
};
TaskControlBlock.prototype.isHeldOrSuspended = function () {
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
return (state & STATE_HELD) != 0 || (state == STATE_SUSPENDED);
};
TaskControlBlock.prototype.markAsSuspended = function () {
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
try {
this.state = state | STATE_SUSPENDED;
} catch(e) { }
};
TaskControlBlock.prototype.markAsRunnable = function () {
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
try {
this.state = state | STATE_RUNNABLE;
} catch(e) { }
};
/**
* Runs this task, if it is ready to be run, and returns the next task to run.
*/
TaskControlBlock.prototype.run = function () {
var packet;
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
if (state == STATE_SUSPENDED_RUNNABLE) {
let queue;
try {
queue = this.queue;
} catch(e) {
queue = this.queue;
}
packet = queue;
let link;
try {
link = packet.link;
} catch(e) {
link = packet.link;
}
this.queue = link;
try {
queue = this.queue;
} catch(e) {
queue = this.queue;
}
if (queue == null) {
try {
this.state = STATE_RUNNING;
} catch(e) { }
} else {
try {
this.state = STATE_RUNNABLE;
} catch(e) { }
}
} else {
packet = null;
}
return this.task.run(packet);
};
/**
* Adds a packet to the worklist of this block's task, marks this as runnable if
* necessary, and returns the next runnable object to run (the one
* with the highest priority).
*/
TaskControlBlock.prototype.checkPriorityAdd = function (task, packet) {
let queue;
try {
queue = this.queue;
} catch(e) {
queue = this.queue;
}
if (queue == null) {
this.queue = packet;
this.markAsRunnable();
if (this.priority > task.priority) return this;
} else {
let queue;
try {
queue = this.queue;
} catch(e) {
queue = this.queue;
}
this.queue = packet.addTo(queue);
}
return task;
};
TaskControlBlock.prototype.toString = function () {
let state;
try {
state = this.state;
} catch(e) {
state = this.state;
}
return "tcb { " + this.task + "@" + state + " }";
};
/**
* An idle task doesn't do any work itself but cycles control between the two
* device tasks.
* @param {Scheduler} scheduler the scheduler that manages this task
* @param {int} v1 a seed value that controls how the device tasks are scheduled
* @param {int} count the number of times this task should be scheduled
* @constructor
*/
function IdleTask(scheduler, v1, count) {
this._scheduler = scheduler;
this._v1 = v1;
this._count = count;
}
IdleTask.prototype.__defineGetter__("scheduler", function() { randomException(); return this._scheduler; });
IdleTask.prototype.__defineGetter__("v1", function() { randomException(); return this._v1; });
IdleTask.prototype.__defineSetter__("v1", function(value) { this._v1 = value; randomException(); });
IdleTask.prototype.__defineGetter__("count", function() { randomException(); return this._count; });
IdleTask.prototype.__defineSetter__("count", function(value) { this._count = value; randomException(); });
IdleTask.prototype.run = function (packet) {
let count;
try {
count = this.count;
} catch(e) {
count = this.count;
}
try {
this.count = count - 1;
} catch(e) { }
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
try {
count = this.count;
} catch(e) {
count = this.count;
}
if (count == 0) return scheduler.holdCurrent();
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
if ((v1 & 1) == 0) {
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
try {
this.v1 = v1 >> 1;
} catch(e) { }
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
return scheduler.release(ID_DEVICE_A);
} else {
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
try {
this.v1 = (v1 >> 1) ^ 0xD008;
} catch(e) { }
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
return scheduler.release(ID_DEVICE_B);
}
};
IdleTask.prototype.toString = function () {
return "IdleTask"
};
/**
* A task that suspends itself after each time it has been run to simulate
* waiting for data from an external device.
* @param {Scheduler} scheduler the scheduler that manages this task
* @constructor
*/
function DeviceTask(scheduler) {
this._scheduler = scheduler;
this._v1 = null;
}
DeviceTask.prototype.__defineGetter__("scheduler", function() { randomException(); return this._scheduler; });
DeviceTask.prototype.__defineGetter__("v1", function() { randomException(); return this._v1; });
DeviceTask.prototype.__defineSetter__("v1", function(value) { this._v1 = value; randomException(); });
DeviceTask.prototype.run = function (packet) {
if (packet == null) {
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
if (v1 == null) return scheduler.suspendCurrent();
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
var v = v1;
try {
this.v1 = null;
} catch(e) { }
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
let queue;
try {
queue = scheduler.queue;
} catch(e) {
queue = scheduler.queue;
}
return queue.bind(scheduler)(v);
} else {
try {
this.v1 = packet;
} catch(e) { }
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
return scheduler.holdCurrent();
}
};
DeviceTask.prototype.toString = function () {
return "DeviceTask";
};
/**
* A task that manipulates work packets.
* @param {Scheduler} scheduler the scheduler that manages this task
* @param {int} v1 a seed used to specify how work packets are manipulated
* @param {int} v2 another seed used to specify how work packets are manipulated
* @constructor
*/
function WorkerTask(scheduler, v1, v2) {
this._scheduler = scheduler;
this._v1 = v1;
this._v2 = v2;
}
WorkerTask.prototype.__defineGetter__("scheduler", function() { randomException(); return this._scheduler; });
WorkerTask.prototype.__defineGetter__("v1", function() { randomException(); return this._v1; });
WorkerTask.prototype.__defineSetter__("v1", function(value) { this._v1 = value; randomException(); });
WorkerTask.prototype.__defineGetter__("v2", function() { randomException(); return this._v2; });
WorkerTask.prototype.__defineSetter__("v2", function(value) { this._v2 = value; randomException(); });
WorkerTask.prototype.run = function (packet) {
if (packet == null) {
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
return scheduler.suspendCurrent();
} else {
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
if (v1 == ID_HANDLER_A) {
try {
this.v1 = ID_HANDLER_B;
} catch(e){}
} else {
try {
this.v1 = ID_HANDLER_A;
} catch(e) { }
}
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
try {
packet.id = v1;
} catch(e) { }
try {
packet.a1 = 0;
} catch(e) { }
for (var i = 0; i < DATA_SIZE; i++) {
let v2;
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
v2++;
try {
this.v2 = v2;
} catch(e) { }
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
if (v2 > 26) {
try {
this.v2 = 1;
} catch(e) { }
}
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
packet.a2[i] = v2;
}
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
let queue;
try {
queue = scheduler.queue;
} catch(e) {
queue = scheduler.queue;
}
return queue.bind(scheduler)(packet);
}
};
WorkerTask.prototype.toString = function () {
return "WorkerTask";
};
/**
* A task that manipulates work packets and then suspends itself.
* @param {Scheduler} scheduler the scheduler that manages this task
* @constructor
*/
function HandlerTask(scheduler) {
this._scheduler = scheduler;
this._v1 = null;
this._v2 = null;
}
HandlerTask.prototype.__defineGetter__("scheduler", function() { randomException(); return this._scheduler; });
HandlerTask.prototype.__defineGetter__("v1", function() { randomException(); return this._v1; });
HandlerTask.prototype.__defineSetter__("v1", function(value) { this._v1 = value; randomException(); });
HandlerTask.prototype.__defineGetter__("v2", function() { randomException(); return this._v2; });
HandlerTask.prototype.__defineSetter__("v2", function(value) { this._v2 = value; randomException(); });
HandlerTask.prototype.run = function (packet) {
if (packet != null) {
let kind;
try {
kind = packet.kind;
} catch(e) {
kind = packet.kind;
}
if (kind == KIND_WORK) {
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
try {
this.v1 = packet.addTo(v1);
} catch(e) { }
} else {
let v2;
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
try {
this.v2 = packet.addTo(v2);
} catch(e) { }
}
}
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
if (v1 != null) {
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
var count = v1.a1;
var v;
if (count < DATA_SIZE) {
let v2;
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
if (v2 != null) {
let v2;
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
v = v2;
let link;
try {
v2 = this.v2;
} catch(e) {
v2 = this.v2;
}
try {
link = v2.link;
} catch(e) {
link = v2.link;
}
try {
this.v2 = link;
} catch(e) { }
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
try {
v.a1 = v1.a2[count];
} catch(e) { }
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
try {
v1.a1 = count + 1;
} catch(e) { }
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
let queue;
try {
queue = scheduler.queue;
} catch(e) {
queue = scheduler.queue;
}
return queue.bind(scheduler)(v);
}
} else {
let v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
v = v1;
try {
v1 = this.v1;
} catch(e) {
v1 = this.v1;
}
let link;
try {
link = v1.link;
} catch(e) {
link = v1.link;
}
try {
this.v1 = link;
} catch(e) { }
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
let queue;
try {
queue = scheduler.queue;
} catch(e) {
queue = scheduler.queue;
}
return queue.bind(scheduler)(v);
}
}
let scheduler;
try {
scheduler = this.scheduler;
} catch(e) {
scheduler = this.scheduler;
}
return scheduler.suspendCurrent();
};
HandlerTask.prototype.toString = function () {
return "HandlerTask";
};
/* --- *
* P a c k e t
* --- */
var DATA_SIZE = 4;
/**
* A simple package of data that is manipulated by the tasks. The exact layout
* of the payload data carried by a packet is not importaint, and neither is the
* nature of the work performed on packets by the tasks.
*
* Besides carrying data, packets form linked lists and are hence used both as
* data and worklists.
* @param {Packet} link the tail of the linked list of packets
* @param {int} id an ID for this packet
* @param {int} kind the type of this packet
* @constructor
*/
function Packet(link, id, kind) {
this._link = link;
this._id = id;
this._kind = kind;
this._a1 = 0;
this._a2 = new Array(DATA_SIZE);
}
Packet.prototype.__defineGetter__("link", function() { randomException(); return this._link; });
Packet.prototype.__defineSetter__("link", function(value) { this._link = value; randomException(); });
Packet.prototype.__defineGetter__("id", function() { return this._id; });
Packet.prototype.__defineSetter__("id", function(value) { this._id = value; randomException(); });
Packet.prototype.__defineGetter__("kind", function() { randomException(); return this._kind; });
Packet.prototype.__defineGetter__("a1", function() { return this._a1; });
Packet.prototype.__defineSetter__("a1", function(value) { this._a1 = value; randomException(); });
Packet.prototype.__defineGetter__("a2", function() { return this._a2; });
/**
* Add this packet to the end of a worklist, and return the worklist.
* @param {Packet} queue the worklist to add this packet to
*/
Packet.prototype.addTo = function (queue) {
try {
this.link = null;
} catch(e) { }
if (queue == null) return this;
var peek, next = queue;
while (true) {
let link;
try {
link = next.link;
} catch(e) {
link = next.link;
}
if (link == null)
break;
peek = link;
next = peek;
}
try {
next.link = this;
} catch(e) { }
return queue;
};
Packet.prototype.toString = function () {
return "Packet";
};
for (var i = 0; i < 30; ++i)
runRichards();