michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "SyncProfile.h"
michael@0: #include "UnwinderThread2.h"
michael@0: 
michael@0: SyncProfile::SyncProfile(const char* aName, int aEntrySize, PseudoStack *aStack,
michael@0:                          Thread::tid_t aThreadId, bool aIsMainThread)
michael@0:   : ThreadProfile(aName, aEntrySize, aStack, aThreadId,
michael@0:                  Sampler::AllocPlatformData(aThreadId), aIsMainThread,
michael@0:                  tlsStackTop.get()),
michael@0:     mOwnerState(REFERENCED),
michael@0:     mUtb(nullptr)
michael@0: {
michael@0: }
michael@0: 
michael@0: SyncProfile::~SyncProfile()
michael@0: {
michael@0:   if (mUtb) {
michael@0:     utb__release_sync_buffer(mUtb);
michael@0:   }
michael@0:   Sampler::FreePlatformData(GetPlatformData());
michael@0: }
michael@0: 
michael@0: bool
michael@0: SyncProfile::SetUWTBuffer(LinkedUWTBuffer* aBuff)
michael@0: {
michael@0:   MOZ_ASSERT(aBuff);
michael@0:   mUtb = aBuff;
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: bool
michael@0: SyncProfile::ShouldDestroy()
michael@0: {
michael@0:   GetMutex()->AssertNotCurrentThreadOwns();
michael@0:   mozilla::MutexAutoLock lock(*GetMutex());
michael@0:   if (mOwnerState == OWNED) {
michael@0:     mOwnerState = OWNER_DESTROYING;
michael@0:     return true;
michael@0:   }
michael@0:   mOwnerState = ORPHANED;
michael@0:   return false;
michael@0: }
michael@0: 
michael@0: void
michael@0: SyncProfile::EndUnwind()
michael@0: {
michael@0:   // Mutex must be held when this is called
michael@0:   GetMutex()->AssertCurrentThreadOwns();
michael@0:   if (mOwnerState != ORPHANED) {
michael@0:     flush();
michael@0:     mOwnerState = OWNED;
michael@0:   }
michael@0:   // Save mOwnerState before we release the mutex
michael@0:   OwnerState ownerState = mOwnerState;
michael@0:   ThreadProfile::EndUnwind();
michael@0:   if (ownerState == ORPHANED) {
michael@0:     delete this;
michael@0:   }
michael@0: }
michael@0: