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content / public / test / no_renderer_crashes_assertion.cc [blame]
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/public/test/no_renderer_crashes_assertion.h"
#include "base/no_destructor.h"
#include "content/public/browser/child_process_host.h"
#include "content/public/browser/child_process_termination_info.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
// static
NoRendererCrashesAssertion::Suspensions&
NoRendererCrashesAssertion::Suspensions::GetInstance() {
static base::NoDestructor<NoRendererCrashesAssertion::Suspensions>
s_suspensions;
return *s_suspensions;
}
NoRendererCrashesAssertion::Suspensions::Suspensions() = default;
NoRendererCrashesAssertion::Suspensions::~Suspensions() = default;
void NoRendererCrashesAssertion::Suspensions::AddSuspension(int process_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
process_id_to_suspension_count_[process_id]++;
}
void NoRendererCrashesAssertion::Suspensions::RemoveSuspension(int process_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
auto it = process_id_to_suspension_count_.find(process_id);
CHECK(it != process_id_to_suspension_count_.end());
DCHECK_LT(0, it->second);
--it->second;
if (0 == it->second)
process_id_to_suspension_count_.erase(it);
}
bool NoRendererCrashesAssertion::Suspensions::IsSuspended(int process_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK_NE(ChildProcessHost::kInvalidUniqueID, process_id);
auto it = process_id_to_suspension_count_.find(process_id);
if (it != process_id_to_suspension_count_.end() && it->second > 0)
return true;
auto it2 =
process_id_to_suspension_count_.find(ChildProcessHost::kInvalidUniqueID);
if (it2 != process_id_to_suspension_count_.end() && it2->second > 0)
return true;
return false;
}
NoRendererCrashesAssertion::NoRendererCrashesAssertion() {
for (auto iter = RenderProcessHost::AllHostsIterator(); !iter.IsAtEnd();
iter.Advance()) {
process_observations_.AddObservation(iter.GetCurrentValue());
}
}
NoRendererCrashesAssertion::~NoRendererCrashesAssertion() = default;
void NoRendererCrashesAssertion::OnRenderProcessHostCreated(
RenderProcessHost* host) {
if (!process_observations_.IsObservingSource(host)) {
process_observations_.AddObservation(host);
}
}
void NoRendererCrashesAssertion::RenderProcessExited(
RenderProcessHost* host,
const ChildProcessTerminationInfo& info) {
if (NoRendererCrashesAssertion::Suspensions::GetInstance().IsSuspended(
host->GetID())) {
return;
}
switch (info.status) {
case base::TERMINATION_STATUS_LAUNCH_FAILED:
case base::TERMINATION_STATUS_NORMAL_TERMINATION:
case base::TERMINATION_STATUS_STILL_RUNNING:
return; // Not a crash.
default:
break; // Crash - need to trigger a test failure below.
}
const auto exit_code = info.exit_code;
// Windows error codes such as 0xC0000005 and 0xC0000409 are much easier
// to recognize and differentiate in hex.
if (static_cast<int>(exit_code) < -100) {
FAIL() << "Unexpected termination of a renderer process"
<< "; status: " << info.status << ", exit_code: 0x" << std::hex
<< exit_code;
} else {
// Print other error codes as a signed integer so that small negative
// numbers are also recognizable.
FAIL() << "Unexpected termination of a renderer process"
<< "; status: " << info.status << ", exit_code: " << exit_code;
}
}
void NoRendererCrashesAssertion::RenderProcessHostDestroyed(
RenderProcessHost* host) {
CHECK(process_observations_.IsObservingSource(host));
process_observations_.RemoveObservation(host);
}
ScopedAllowRendererCrashes::ScopedAllowRendererCrashes()
: ScopedAllowRendererCrashes(nullptr) {}
ScopedAllowRendererCrashes::ScopedAllowRendererCrashes(
RenderProcessHost* process)
: process_id_(process ? process->GetID()
: ChildProcessHost::kInvalidUniqueID) {
NoRendererCrashesAssertion::Suspensions::GetInstance().AddSuspension(
process_id_);
}
ScopedAllowRendererCrashes::ScopedAllowRendererCrashes(
const ToRenderFrameHost& frame)
: ScopedAllowRendererCrashes(frame.render_frame_host()->GetProcess()) {}
ScopedAllowRendererCrashes::~ScopedAllowRendererCrashes() {
NoRendererCrashesAssertion::Suspensions::GetInstance().RemoveSuspension(
process_id_);
}
} // namespace content