Files
tubestation/dom/system/windows/WindowsUtilsParent.h
Nika Layzell 2c721f79d8 Bug 1908725 - Part 2: Make the ChildID available in the same places as OtherPid, r=ipc-reviewers,media-playback-reviewers,win-reviewers,alwu,rkraesig,gfx-reviewers,mccr8,nical
This requires quite a bit of piping to get the ChildID passed everywhere where
we currently pass the pid in IPC. This is done by adding a new struct type
(EndpointProcInfo), which is passed around instead of OtherPid in these places,
and contains the full pid.

In most cases, it was a fairly painless change to move over, however in some
cases, more complex changes were required, as the pid was being stored
previously in something like an Atomic<...>, and needed to be switched to using
a mutex-protected value.

In the future, it may be possible to remove OtherPid from IPDL actors once
everything is migrated to ChildID, but we're still a long way off from that, so
for now we unfortunately need to pass both around.

Differential Revision: https://phabricator.services.mozilla.com/D217118
2024-08-07 20:39:39 +00:00

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/* -*- 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/. */
#ifndef mozilla_dom_WindowsUtilsParent_h__
#define mozilla_dom_WindowsUtilsParent_h__
#include "mozilla/dom/PWindowsUtilsParent.h"
#include "mozilla/ProcInfo.h"
#include "mozilla/ipc/Endpoint.h"
#include "mozilla/ipc/UtilityProcessParent.h"
namespace mozilla::dom {
// Main-process manager for utilities in the WindowsUtils utility process.
class WindowsUtilsParent final : public PWindowsUtilsParent {
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(WindowsUtilsParent, override);
nsresult BindToUtilityProcess(
RefPtr<mozilla::ipc::UtilityProcessParent> aUtilityParent) {
Endpoint<PWindowsUtilsParent> parentEnd;
Endpoint<PWindowsUtilsChild> childEnd;
nsresult rv = PWindowsUtils::CreateEndpoints(
mozilla::ipc::EndpointProcInfo::Current(),
aUtilityParent->OtherEndpointProcInfo(), &parentEnd, &childEnd);
if (NS_FAILED(rv)) {
MOZ_ASSERT(false, "Protocol endpoints failure");
return NS_ERROR_FAILURE;
}
if (!aUtilityParent->SendStartWindowsUtilsService(std::move(childEnd))) {
MOZ_ASSERT(false, "SendStartWindowsUtilsService failed");
return NS_ERROR_FAILURE;
}
DebugOnly<bool> ok = parentEnd.Bind(this);
MOZ_ASSERT(ok);
return NS_OK;
}
UtilityActorName GetActorName() { return UtilityActorName::WindowsUtils; }
protected:
~WindowsUtilsParent() = default;
};
} // namespace mozilla::dom
#endif // mozilla_dom_WindowsUtilsParent_h__