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/*
* Copyright (C) 2013 Apple Inc. All rights reserved.
* Copyright (C) 2014 University of Washington
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
WebInspector.messagesToDispatch = [];
WebInspector.dispatchNextQueuedMessageFromBackend = function()
{
var startCount = WebInspector.messagesToDispatch.length;
var startTime = Date.now();
var timeLimitPerRunLoop = 10; // milliseconds
var i = 0;
for (; i < WebInspector.messagesToDispatch.length; ++i) {
// Defer remaining messages if we have taken too long. In practice, single
// messages like Page.getResourceContent blow through the time budget.
if (Date.now() - startTime > timeLimitPerRunLoop)
break;
InspectorBackend.dispatch(WebInspector.messagesToDispatch[i]);
}
if (i === WebInspector.messagesToDispatch.length) {
WebInspector.messagesToDispatch = [];
WebInspector._dispatchTimeout = null;
} else {
WebInspector.messagesToDispatch = WebInspector.messagesToDispatch.slice(i);
WebInspector._dispatchTimeout = setTimeout(WebInspector.dispatchNextQueuedMessageFromBackend, 0);
}
if (InspectorBackend.dumpInspectorTimeStats)
console.log("time-stats: --- RunLoop duration: " + (Date.now() - startTime) + "ms; dispatched: " + (startCount - WebInspector.messagesToDispatch.length) + "; remaining: " + WebInspector.messagesToDispatch.length);
};
WebInspector.dispatchMessageFromBackend = function(message)
{
// Enforce asynchronous interaction between the backend and the frontend by queueing messages.
// The messages are dequeued on a zero delay timeout.
this.messagesToDispatch.push(message);
if (this._dispatchTimeout)
return;
this._dispatchTimeout = setTimeout(WebInspector.dispatchNextQueuedMessageFromBackend, 0);
};
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