зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
1.3 KiB
C++
79 строки
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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 "SharedDIB.h"
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
SharedDIB::SharedDIB() :
|
|
mShMem(nullptr)
|
|
{
|
|
}
|
|
|
|
SharedDIB::~SharedDIB()
|
|
{
|
|
Close();
|
|
}
|
|
|
|
nsresult
|
|
SharedDIB::Create(uint32_t aSize)
|
|
{
|
|
Close();
|
|
|
|
mShMem = new base::SharedMemory();
|
|
if (!mShMem || !mShMem->Create(aSize))
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
SharedDIB::IsValid()
|
|
{
|
|
if (!mShMem)
|
|
return false;
|
|
|
|
return base::SharedMemory::IsHandleValid(mShMem->handle());
|
|
}
|
|
|
|
nsresult
|
|
SharedDIB::Close()
|
|
{
|
|
delete mShMem;
|
|
|
|
mShMem = nullptr;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
SharedDIB::Attach(Handle aHandle, uint32_t aSize)
|
|
{
|
|
Close();
|
|
|
|
mShMem = new base::SharedMemory(aHandle, false);
|
|
if(!mShMem)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
SharedDIB::ShareToProcess(base::ProcessId aTargetPid, Handle *aNewHandle)
|
|
{
|
|
if (!mShMem)
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
if (!mShMem->ShareToProcess(aTargetPid, aNewHandle))
|
|
return NS_ERROR_UNEXPECTED;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace gfx
|
|
} // namespace mozilla
|