| /* |
| * Copyright (C) 2010 Google, Inc. All Rights Reserved. |
| * |
| * 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. ``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 |
| * 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. |
| */ |
| |
| #ifndef ResourceLoadTiming_h |
| #define ResourceLoadTiming_h |
| |
| #include "platform/PlatformExport.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace blink { |
| |
| class PLATFORM_EXPORT ResourceLoadTiming |
| : public RefCounted<ResourceLoadTiming> { |
| public: |
| static PassRefPtr<ResourceLoadTiming> create(); |
| |
| PassRefPtr<ResourceLoadTiming> deepCopy(); |
| bool operator==(const ResourceLoadTiming&) const; |
| bool operator!=(const ResourceLoadTiming&) const; |
| |
| void setDnsStart(double); |
| void setRequestTime(double); |
| void setProxyStart(double); |
| void setProxyEnd(double); |
| void setDnsEnd(double); |
| void setConnectStart(double); |
| void setConnectEnd(double); |
| void setWorkerStart(double); |
| void setWorkerReady(double); |
| void setSendStart(double); |
| void setSendEnd(double); |
| void setReceiveHeadersEnd(double); |
| void setSslStart(double); |
| void setSslEnd(double); |
| void setPushStart(double); |
| void setPushEnd(double); |
| |
| double dnsStart() const { return m_dnsStart; } |
| double requestTime() const { return m_requestTime; } |
| double proxyStart() const { return m_proxyStart; } |
| double proxyEnd() const { return m_proxyEnd; } |
| double dnsEnd() const { return m_dnsEnd; } |
| double connectStart() const { return m_connectStart; } |
| double connectEnd() const { return m_connectEnd; } |
| double workerStart() const { return m_workerStart; } |
| double workerReady() const { return m_workerReady; } |
| double sendStart() const { return m_sendStart; } |
| double sendEnd() const { return m_sendEnd; } |
| double receiveHeadersEnd() const { return m_receiveHeadersEnd; } |
| double sslStart() const { return m_sslStart; } |
| double sslEnd() const { return m_sslEnd; } |
| double pushStart() const { return m_pushStart; } |
| double pushEnd() const { return m_pushEnd; } |
| |
| double calculateMillisecondDelta(double) const; |
| |
| private: |
| ResourceLoadTiming(); |
| |
| // We want to present a unified timeline to Javascript. Using walltime is |
| // problematic, because the clock may skew while resources load. To prevent |
| // that skew, we record a single reference walltime when root document |
| // navigation begins. All other times are recorded using |
| // monotonicallyIncreasingTime(). When a time needs to be presented to |
| // Javascript, we build a pseudo-walltime using the following equation |
| // (m_requestTime as example): |
| // pseudo time = document wall reference + |
| // (m_requestTime - document monotonic reference). |
| |
| // All monotonicallyIncreasingTime() in seconds |
| double m_requestTime; |
| double m_proxyStart; |
| double m_proxyEnd; |
| double m_dnsStart; |
| double m_dnsEnd; |
| double m_connectStart; |
| double m_connectEnd; |
| double m_workerStart; |
| double m_workerReady; |
| double m_sendStart; |
| double m_sendEnd; |
| double m_receiveHeadersEnd; |
| double m_sslStart; |
| double m_sslEnd; |
| double m_pushStart; |
| double m_pushEnd; |
| }; |
| |
| } // namespace blink |
| |
| #endif |