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These were missed by the PDFium probing-style detector because the raw_ptr<> were never destroyed. LSAN could not find it either, since the memory was not leaked, just the dangling references were not cleaned up beforehand. The reason is that we have C++ classes inheriting from C-style structs, hence there can not be virtual destructors. When holding an unique_ptr<> to the C-style struct, the subclass is never destructed. After this CL lands, we should be able to make the build bots set the GN variable `enable_dangling_raw_ptr_checks=true`. If that were set today, hopefully it would flag the issue. Change-Id: I631b2e07670e1e09111ffa9f35e600cc42b15323 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/112410 Commit-Queue: Tom Sepez <tsepez@chromium.org> Reviewed-by: Lei Zhang <thestig@chromium.org>
47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
// Copyright 2017 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef TESTING_FAKE_FILE_ACCESS_H_
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#define TESTING_FAKE_FILE_ACCESS_H_
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#include <memory>
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#include "core/fxcrt/unowned_ptr.h"
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#include "public/fpdf_dataavail.h"
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#include "public/fpdfview.h"
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#include "testing/range_set.h"
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class DownloadHintsImpl;
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class FileAccessWrapper;
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class FileAvailImpl;
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class FakeFileAccess {
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public:
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explicit FakeFileAccess(FPDF_FILEACCESS* file_access);
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~FakeFileAccess();
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FPDF_FILEACCESS* GetFileAccess() const;
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FX_FILEAVAIL* GetFileAvail() const;
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FX_DOWNLOADHINTS* GetDownloadHints() const;
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FPDF_BOOL IsDataAvail(size_t offset, size_t size) const;
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void AddSegment(size_t offset, size_t size);
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unsigned long GetFileSize();
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int GetBlock(unsigned long position, unsigned char* pBuf, unsigned long size);
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void SetRequestedDataAvailable();
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void SetWholeFileAvailable();
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private:
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UnownedPtr<FPDF_FILEACCESS> file_access_;
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std::unique_ptr<FileAccessWrapper> file_access_wrapper_;
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std::unique_ptr<FileAvailImpl> file_avail_;
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std::unique_ptr<DownloadHintsImpl> download_hints_;
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RangeSet available_data_;
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RangeSet requested_data_;
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};
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#endif // TESTING_FAKE_FILE_ACCESS_H_
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