зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
1.5 KiB
C++
68 строки
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "SyncProfile.h"
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#include "UnwinderThread2.h"
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SyncProfile::SyncProfile(ThreadInfo* aInfo, int aEntrySize)
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: ThreadProfile(aInfo, aEntrySize)
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, mOwnerState(REFERENCED)
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, mUtb(nullptr)
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{
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MOZ_COUNT_CTOR(SyncProfile);
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}
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SyncProfile::~SyncProfile()
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{
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MOZ_COUNT_DTOR(SyncProfile);
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if (mUtb) {
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utb__release_sync_buffer(mUtb);
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}
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Sampler::FreePlatformData(GetPlatformData());
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}
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bool
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SyncProfile::SetUWTBuffer(LinkedUWTBuffer* aBuff)
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{
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MOZ_ASSERT(aBuff);
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mUtb = aBuff;
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return true;
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}
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bool
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SyncProfile::ShouldDestroy()
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{
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GetMutex()->AssertNotCurrentThreadOwns();
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mozilla::MutexAutoLock lock(*GetMutex());
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if (mOwnerState == OWNED) {
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mOwnerState = OWNER_DESTROYING;
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return true;
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}
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mOwnerState = ORPHANED;
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return false;
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}
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void
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SyncProfile::EndUnwind()
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{
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// Mutex must be held when this is called
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GetMutex()->AssertCurrentThreadOwns();
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if (mUtb) {
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utb__end_sync_buffer_unwind(mUtb);
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}
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if (mOwnerState != ORPHANED) {
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flush();
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mOwnerState = OWNED;
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}
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// Save mOwnerState before we release the mutex
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OwnerState ownerState = mOwnerState;
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ThreadProfile::EndUnwind();
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if (ownerState == ORPHANED) {
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delete this;
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}
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}
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