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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /tools/code-coverage/nsCodeCoverage.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/code-coverage/nsCodeCoverage.cpp | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/tools/code-coverage/nsCodeCoverage.cpp b/tools/code-coverage/nsCodeCoverage.cpp new file mode 100644 index 0000000000..5d7ed1927c --- /dev/null +++ b/tools/code-coverage/nsCodeCoverage.cpp @@ -0,0 +1,96 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* 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 "nsCodeCoverage.h" +#include "mozilla/CodeCoverageHandler.h" +#include "mozilla/Unused.h" +#include "mozilla/dom/ContentParent.h" +#include "mozilla/dom/Promise.h" + +using mozilla::dom::ContentParent; +using mozilla::dom::Promise; + +NS_IMPL_ISUPPORTS(nsCodeCoverage, nsICodeCoverage) + +nsCodeCoverage::nsCodeCoverage() {} + +nsCodeCoverage::~nsCodeCoverage() {} + +enum RequestType { Flush }; + +class ProcessCount final { + NS_INLINE_DECL_REFCOUNTING(ProcessCount); + + public: + explicit ProcessCount(uint32_t c) : mCount(c) {} + operator uint32_t() const { return mCount; } + ProcessCount& operator--() { + mCount--; + return *this; + } + + private: + ~ProcessCount() {} + uint32_t mCount; +}; + +namespace { + +nsresult Request(JSContext* cx, Promise** aPromise, RequestType requestType) { + MOZ_ASSERT(XRE_IsParentProcess()); + MOZ_ASSERT(NS_IsMainThread()); + + nsIGlobalObject* global = xpc::CurrentNativeGlobal(cx); + if (NS_WARN_IF(!global)) { + return NS_ERROR_FAILURE; + } + + mozilla::ErrorResult result; + RefPtr<Promise> promise = Promise::Create(global, result); + if (NS_WARN_IF(result.Failed())) { + return result.StealNSResult(); + } + + uint32_t processCount = 0; + for (auto* cp : ContentParent::AllProcesses(ContentParent::eLive)) { + mozilla::Unused << cp; + ++processCount; + } + + if (requestType == RequestType::Flush) { + mozilla::CodeCoverageHandler::FlushCounters(); + } + + if (processCount == 0) { + promise->MaybeResolveWithUndefined(); + } else { + RefPtr<ProcessCount> processCountHolder(new ProcessCount(processCount)); + + auto resolve = [processCountHolder, promise](bool unused) { + if (--(*processCountHolder) == 0) { + promise->MaybeResolveWithUndefined(); + } + }; + + auto reject = [promise](mozilla::ipc::ResponseRejectReason&& aReason) { + promise->MaybeReject(NS_ERROR_FAILURE); + }; + + for (auto* cp : ContentParent::AllProcesses(ContentParent::eLive)) { + if (requestType == RequestType::Flush) { + cp->SendFlushCodeCoverageCounters(resolve, reject); + } + } + } + + promise.forget(aPromise); + return NS_OK; +} + +} // anonymous namespace + +NS_IMETHODIMP nsCodeCoverage::FlushCounters(JSContext* cx, Promise** aPromise) { + return Request(cx, aPromise, RequestType::Flush); +} |