[Webkit-unassigned] [Bug 112310] New: Add a mode to ResourceLoader that takes SharedBuffers instead of raw pointers and lengths

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=112310

           Summary: Add a mode to ResourceLoader that takes SharedBuffers
                    instead of raw pointers and lengths
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: beidson at apple.com


Add a mode to ResourceLoader that takes SharedBuffers instead of raw pointers and lengths.

For platforms whose ResourceHandle::didReceiveData implementation gets some sort of buffer object (Mac, CF, qt, soup) this is an optimization that can be used today to avoid at least one data copy in many cases.

For other platforms whose ResourceHandle::didReceiveData implementations get raw pointers and lengths themselves, it is possible that they have options to rewrite their platform layers to use some sort of shared buffer object or introduce special modes to SharedBuffer that could help encapsulate the same thing.

Some day we might be able to get away from the current didReceiveData(char*, int) model entirely and work solely with SharedBuffers...  but we can't do that today without introducing a "copy into a SharedBuffer" step to those other platforms.

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