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/* -*- 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
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