tools/profiler/SyncProfile.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
     3 /* This Source Code Form is subject to the terms of the Mozilla Public
     4  * License, v. 2.0. If a copy of the MPL was not distributed with this
     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     7 #ifndef __SYNCPROFILE_H
     8 #define __SYNCPROFILE_H
    10 #include "ProfileEntry.h"
    12 struct LinkedUWTBuffer;
    14 class SyncProfile : public ThreadProfile
    15 {
    16 public:
    17   SyncProfile(const char* aName, int aEntrySize, PseudoStack *aStack,
    18               Thread::tid_t aThreadId, bool aIsMainThread);
    19   ~SyncProfile();
    21   bool SetUWTBuffer(LinkedUWTBuffer* aBuff);
    22   LinkedUWTBuffer* GetUWTBuffer() { return mUtb; }
    24   virtual void EndUnwind();
    25   virtual SyncProfile* AsSyncProfile() { return this; }
    27 private:
    28   friend class ProfilerBacktrace;
    30   enum OwnerState
    31   {
    32     REFERENCED,       // ProfilerBacktrace has a pointer to this but doesn't own
    33     OWNED,            // ProfilerBacktrace is responsible for destroying this
    34     OWNER_DESTROYING, // ProfilerBacktrace owns this and is destroying
    35     ORPHANED          // No owner, we must destroy ourselves
    36   };
    38   bool ShouldDestroy();
    40   OwnerState        mOwnerState;
    41   LinkedUWTBuffer*  mUtb;
    42 };
    44 #endif // __SYNCPROFILE_H

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