gecko-dev/toolkit/components/processtools/ProcessToolsService.cpp

34 строки
1.1 KiB
C++

/* 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 "mozilla/ClearOnShutdown.h"
#include "mozilla/StaticPtr.h"
#include "nsCOMPtr.h"
#include "ProcessToolsService.h"
// This anonymous namespace prevents outside C++ code from improperly accessing
// these implementation details.
namespace {
extern "C" {
// Implemented in Rust.
void new_process_tools_service(nsIProcessToolsService** result);
}
static mozilla::StaticRefPtr<nsIProcessToolsService> sProcessToolsService;
} // namespace
already_AddRefed<nsIProcessToolsService> GetProcessToolsService() {
nsCOMPtr<nsIProcessToolsService> processToolsService;
if (sProcessToolsService) {
processToolsService = sProcessToolsService;
} else {
new_process_tools_service(getter_AddRefs(processToolsService));
sProcessToolsService = processToolsService;
mozilla::ClearOnShutdown(&sProcessToolsService);
}
return processToolsService.forget();
}