From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- gfx/ipc/SharedDIB.cpp | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 gfx/ipc/SharedDIB.cpp (limited to 'gfx/ipc/SharedDIB.cpp') diff --git a/gfx/ipc/SharedDIB.cpp b/gfx/ipc/SharedDIB.cpp new file mode 100644 index 0000000000..7da3a39b3b --- /dev/null +++ b/gfx/ipc/SharedDIB.cpp @@ -0,0 +1,55 @@ +/* -*- 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() { return mShMem && mShMem->IsValid(); } + +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 -- cgit v1.2.3