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-rw-r--r--gfx/layers/ipc/GonkNativeHandle.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/gfx/layers/ipc/GonkNativeHandle.cpp b/gfx/layers/ipc/GonkNativeHandle.cpp
new file mode 100644
index 000000000..8f808e623
--- /dev/null
+++ b/gfx/layers/ipc/GonkNativeHandle.cpp
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <unistd.h>
+
+#include "GonkNativeHandle.h"
+
+using namespace mozilla::layers;
+
+namespace mozilla {
+namespace layers {
+
+GonkNativeHandle::GonkNativeHandle()
+ : mNhObj(new NhObj())
+{
+}
+
+GonkNativeHandle::GonkNativeHandle(NhObj* aNhObj)
+ : mNhObj(aNhObj)
+{
+ MOZ_ASSERT(aNhObj);
+}
+
+
+void
+GonkNativeHandle::TransferToAnother(GonkNativeHandle& aHandle)
+{
+ aHandle.mNhObj = this->GetAndResetNhObj();
+}
+
+already_AddRefed<GonkNativeHandle::NhObj>
+GonkNativeHandle::GetAndResetNhObj()
+{
+ RefPtr<NhObj> nhObj = mNhObj;
+ mNhObj = new NhObj();
+ return nhObj.forget();
+}
+
+already_AddRefed<GonkNativeHandle::NhObj>
+GonkNativeHandle::GetDupNhObj()
+{
+ if (!IsValid()) {
+ return GonkNativeHandle::CreateDupNhObj(nullptr);
+ }
+ return GonkNativeHandle::CreateDupNhObj(mNhObj->mHandle);
+}
+
+/* static */ already_AddRefed<GonkNativeHandle::NhObj>
+GonkNativeHandle::CreateDupNhObj(native_handle_t* aHandle)
+{
+ RefPtr<NhObj> nhObj;
+ if (aHandle) {
+ native_handle* nativeHandle =
+ native_handle_create(aHandle->numFds, aHandle->numInts);
+ if (!nativeHandle) {
+ nhObj = new GonkNativeHandle::NhObj();
+ return nhObj.forget();
+ }
+
+ for (int i = 0; i < aHandle->numFds; ++i) {
+ nativeHandle->data[i] = dup(aHandle->data[i]);
+ }
+
+ memcpy(nativeHandle->data + nativeHandle->numFds,
+ aHandle->data + aHandle->numFds,
+ sizeof(int) * aHandle->numInts);
+
+ nhObj = new GonkNativeHandle::NhObj(nativeHandle);
+ } else {
+ nhObj = new GonkNativeHandle::NhObj();
+ }
+ return nhObj.forget();
+}
+
+} // namespace layers
+} // namespace mozilla