VM: Re-format to use at most one newline between functions

runtime/vm/store_buffer.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/store_buffer.h"
 
 #include "platform/assert.h"
 #include "vm/lockers.h"
 #include "vm/runtime_entry.h"
 
 namespace dart {
 
 DEFINE_LEAF_RUNTIME_ENTRY(void, StoreBufferBlockProcess, 1, Thread* thread) {
   thread->StoreBufferBlockProcess(StoreBuffer::kCheckThreshold);
 }
 END_LEAF_RUNTIME_ENTRY
 
 template <int BlockSize>
 typename BlockStack<BlockSize>::List* BlockStack<BlockSize>::global_empty_ =
     NULL;
 template <int BlockSize>
 Mutex* BlockStack<BlockSize>::global_mutex_ = NULL;
 
-
 template <int BlockSize>
 void BlockStack<BlockSize>::InitOnce() {
   global_empty_ = new List();
   global_mutex_ = new Mutex();
 }
 
-
 template <int BlockSize>
 void BlockStack<BlockSize>::ShutDown() {
   delete global_empty_;
   delete global_mutex_;
 }
 
-
 template <int BlockSize>
 BlockStack<BlockSize>::BlockStack() : mutex_(new Mutex()) {}
 
-
 template <int BlockSize>
 BlockStack<BlockSize>::~BlockStack() {
   Reset();
   delete mutex_;
 }
 
-
 template <int BlockSize>
 void BlockStack<BlockSize>::Reset() {
   MutexLocker local_mutex_locker(mutex_);
   {
     // Empty all blocks and move them to the global cache.
     MutexLocker global_mutex_locker(global_mutex_);
     while (!full_.IsEmpty()) {
       Block* block = full_.Pop();
       block->Reset();
       global_empty_->Push(block);
     }
     while (!partial_.IsEmpty()) {
       Block* block = partial_.Pop();
       block->Reset();
       global_empty_->Push(block);
     }
     TrimGlobalEmpty();
   }
 }
 
-
 template <int BlockSize>
 typename BlockStack<BlockSize>::Block* BlockStack<BlockSize>::Blocks() {
   MutexLocker ml(mutex_);
   while (!partial_.IsEmpty()) {
     full_.Push(partial_.Pop());
   }
   return full_.PopAll();
 }
 
-
 template <int BlockSize>
 void BlockStack<BlockSize>::PushBlockImpl(Block* block) {
   ASSERT(block->next() == NULL);  // Should be just a single block.
   if (block->IsFull()) {
     MutexLocker ml(mutex_);
     full_.Push(block);
   } else if (block->IsEmpty()) {
     MutexLocker ml(global_mutex_);
     global_empty_->Push(block);
     TrimGlobalEmpty();
   } else {
     MutexLocker ml(mutex_);
     partial_.Push(block);
   }
 }
 
-
 void StoreBuffer::PushBlock(Block* block, ThresholdPolicy policy) {
   BlockStack<Block::kSize>::PushBlockImpl(block);
   if ((policy == kCheckThreshold) && Overflowed()) {
     MutexLocker ml(mutex_);
     Thread* thread = Thread::Current();
     // Sanity check: it makes no sense to schedule the GC in another isolate.
     // (If Isolate ever gets multiple store buffers, we should avoid this
     // coupling by passing in an explicit callback+parameter at construction.)
     ASSERT(thread->isolate()->store_buffer() == this);
     thread->ScheduleInterrupts(Thread::kVMInterrupt);
   }
 }
 
-
 template <int BlockSize>
 typename BlockStack<BlockSize>::Block*
 BlockStack<BlockSize>::PopNonFullBlock() {
   {
     MutexLocker ml(mutex_);
     if (!partial_.IsEmpty()) {
       return partial_.Pop();
     }
   }
   return PopEmptyBlock();
 }
 
-
 template <int BlockSize>
 typename BlockStack<BlockSize>::Block* BlockStack<BlockSize>::PopEmptyBlock() {
   {
     MutexLocker ml(global_mutex_);
     if (!global_empty_->IsEmpty()) {
       return global_empty_->Pop();
     }
   }
   return new Block();
 }
 
-
 template <int BlockSize>
 typename BlockStack<BlockSize>::Block*
 BlockStack<BlockSize>::PopNonEmptyBlock() {
   MutexLocker ml(mutex_);
   if (!full_.IsEmpty()) {
     return full_.Pop();
   } else if (!partial_.IsEmpty()) {
     return partial_.Pop();
   } else {
     return NULL;
   }
 }
 
-
 template <int BlockSize>
 bool BlockStack<BlockSize>::IsEmpty() {
   MutexLocker ml(mutex_);
   return full_.IsEmpty() && partial_.IsEmpty();
 }
 
-
 template <int BlockSize>
 BlockStack<BlockSize>::List::~List() {
   while (!IsEmpty()) {
     delete Pop();
   }
 }
 
-
 template <int BlockSize>
 typename BlockStack<BlockSize>::Block* BlockStack<BlockSize>::List::Pop() {
   Block* result = head_;
   head_ = head_->next_;
   --length_;
   result->next_ = NULL;
   return result;
 }
 
-
 template <int BlockSize>
 typename BlockStack<BlockSize>::Block* BlockStack<BlockSize>::List::PopAll() {
   Block* result = head_;
   head_ = NULL;
   length_ = 0;
   return result;
 }
 
-
 template <int BlockSize>
 void BlockStack<BlockSize>::List::Push(Block* block) {
   ASSERT(block->next_ == NULL);
   block->next_ = head_;
   head_ = block;
   ++length_;
 }
 
-
 bool StoreBuffer::Overflowed() {
   MutexLocker ml(mutex_);
   return (full_.length() + partial_.length()) > kMaxNonEmpty;
 }
 
-
 template <int BlockSize>
 void BlockStack<BlockSize>::TrimGlobalEmpty() {
   DEBUG_ASSERT(global_mutex_->IsOwnedByCurrentThread());
   while (global_empty_->length() > kMaxGlobalEmpty) {
     delete global_empty_->Pop();
   }
 }
 
-
 template class BlockStack<kStoreBufferBlockSize>;
 template class BlockStack<kMarkingStackBlockSize>;
 
 }  // namespace dart