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authorbrettw@chromium.org <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2010-11-01 16:16:50 +0000
committerbrettw@chromium.org <brettw@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2010-11-01 16:16:50 +0000
commit1758e88fd909ea0ffd49621e8066ffad5627ffdf (patch)
treec304a5eed047cae5665f5af1739d84655fb5815d /ppapi/cpp/non_thread_safe_ref_count.h
parente7d8b51953b7d3b2b8a0aba46132305b32f3efce (diff)
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Move PPAPI into the Chrome repo. The old repo was
http://ppapi.googlecode.com/ TEST=none BUG=none git-svn-id: svn://svn.chromium.org/chrome/trunk/src@64613 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'ppapi/cpp/non_thread_safe_ref_count.h')
-rw-r--r--ppapi/cpp/non_thread_safe_ref_count.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/ppapi/cpp/non_thread_safe_ref_count.h b/ppapi/cpp/non_thread_safe_ref_count.h
new file mode 100644
index 0000000..d827209
--- /dev/null
+++ b/ppapi/cpp/non_thread_safe_ref_count.h
@@ -0,0 +1,48 @@
+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_CPP_NON_THREAD_SAFE_REF_COUNT_H_
+#define PPAPI_CPP_NON_THREAD_SAFE_REF_COUNT_H_
+
+#include "ppapi/cpp/core.h"
+#include "ppapi/cpp/logging.h"
+#include "ppapi/cpp/module.h"
+
+namespace pp {
+
+// Simple ref-count that isn't thread safe. Note: in Debug mode, it checks that
+// it is either called on the main thread, or always called on another thread.
+class NonThreadSafeRefCount {
+ public:
+ NonThreadSafeRefCount()
+ : ref_(0) {
+#ifndef NDEBUG
+ is_main_thread_ = Module::Get()->core()->IsMainThread();
+#endif
+ }
+
+ ~NonThreadSafeRefCount() {
+ PP_DCHECK(is_main_thread_ == Module::Get()->core()->IsMainThread());
+ }
+
+ int32_t AddRef() {
+ PP_DCHECK(is_main_thread_ == Module::Get()->core()->IsMainThread());
+ return ++ref_;
+ }
+
+ int32_t Release() {
+ PP_DCHECK(is_main_thread_ == Module::Get()->core()->IsMainThread());
+ return --ref_;
+ }
+
+ private:
+ int32_t ref_;
+#ifndef NDEBUG
+ bool is_main_thread_;
+#endif
+};
+
+} // namespace pp
+
+#endif // PPAPI_CPP_NON_THREAD_SAFE_REF_COUNT_H_