1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/tools/profiler/SyncProfile.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,65 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=8 sts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "SyncProfile.h"
1.11 +#include "UnwinderThread2.h"
1.12 +
1.13 +SyncProfile::SyncProfile(const char* aName, int aEntrySize, PseudoStack *aStack,
1.14 + Thread::tid_t aThreadId, bool aIsMainThread)
1.15 + : ThreadProfile(aName, aEntrySize, aStack, aThreadId,
1.16 + Sampler::AllocPlatformData(aThreadId), aIsMainThread,
1.17 + tlsStackTop.get()),
1.18 + mOwnerState(REFERENCED),
1.19 + mUtb(nullptr)
1.20 +{
1.21 +}
1.22 +
1.23 +SyncProfile::~SyncProfile()
1.24 +{
1.25 + if (mUtb) {
1.26 + utb__release_sync_buffer(mUtb);
1.27 + }
1.28 + Sampler::FreePlatformData(GetPlatformData());
1.29 +}
1.30 +
1.31 +bool
1.32 +SyncProfile::SetUWTBuffer(LinkedUWTBuffer* aBuff)
1.33 +{
1.34 + MOZ_ASSERT(aBuff);
1.35 + mUtb = aBuff;
1.36 + return true;
1.37 +}
1.38 +
1.39 +bool
1.40 +SyncProfile::ShouldDestroy()
1.41 +{
1.42 + GetMutex()->AssertNotCurrentThreadOwns();
1.43 + mozilla::MutexAutoLock lock(*GetMutex());
1.44 + if (mOwnerState == OWNED) {
1.45 + mOwnerState = OWNER_DESTROYING;
1.46 + return true;
1.47 + }
1.48 + mOwnerState = ORPHANED;
1.49 + return false;
1.50 +}
1.51 +
1.52 +void
1.53 +SyncProfile::EndUnwind()
1.54 +{
1.55 + // Mutex must be held when this is called
1.56 + GetMutex()->AssertCurrentThreadOwns();
1.57 + if (mOwnerState != ORPHANED) {
1.58 + flush();
1.59 + mOwnerState = OWNED;
1.60 + }
1.61 + // Save mOwnerState before we release the mutex
1.62 + OwnerState ownerState = mOwnerState;
1.63 + ThreadProfile::EndUnwind();
1.64 + if (ownerState == ORPHANED) {
1.65 + delete this;
1.66 + }
1.67 +}
1.68 +
