Files
sdk/runtime/vm/store_buffer.h
T
sgjesse@google.com bf67f24098 Move assert.h/assert.cc from runtime/vm to runtime/platform
The purpose of this change is twofold:

1. Source in the bin directory can now use the same assertions as
   source in the vm directory. The ASSERT macro used by the code
   in runtime/bin was just defined to use assert from the standard
   C library.
2. Moving other implementation parts from runtime/vm to
   runtime/platform (e.g. classes Monitor and Mutex) for sharing
   between runtime/bin and runtime/vm will be easier as these
   implementations rely on these assertion macros.

Created two gypi files for the platform directory. One for the
headers and one for the source. The source one is only included
when building the VM library and will be present in libdart.a
when the dart executable is linked.

All the code for asserts is still in the dart namespace.

Also re-arranged the order of includes to be alphabetically in
the files touched.

R=ager@google.com, iposva@google.com

BUG=
TEST=

Review URL: http://codereview.chromium.org//9189003

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@3335 260f80e4-7a28-3924-810f-c04153c831b5
2012-01-16 12:28:10 +00:00

46 lines
1.1 KiB
C++

// 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.
#ifndef VM_STORE_BUFFER_H_
#define VM_STORE_BUFFER_H_
#include "platform/assert.h"
#include "vm/globals.h"
namespace dart {
class StoreBufferBlock {
public:
// Each block contains kSize pointers.
static const int32_t kSize = 1024;
StoreBufferBlock() : top_(0) {}
static int top_offset() { return OFFSET_OF(StoreBufferBlock, top_); }
static int pointers_offset() {
return OFFSET_OF(StoreBufferBlock, pointers_);
}
// Add a pointer to the block of pointers. The buffer will be processed if it
// has been filled by this operation.
void AddPointer(uword pointer) {
ASSERT(top_ < kSize);
pointers_[top_++] = pointer;
if (top_ == kSize) {
ProcessBuffer();
}
}
// Process this store buffer and remember its contents in the heap.
void ProcessBuffer();
private:
int32_t top_;
uword pointers_[kSize];
};
} // namespace dart
#endif // VM_STORE_BUFFER_H_