blob: 1cbe35e8c057fe45462d2e6a8f70a54305cf9eb0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/* -*- 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 https://mozilla.org/MPL/2.0/. */
#include "UntrustedModulesBackupService.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/HashFunctions.h"
#include "mozilla/SchedulerGroup.h"
#include "mozilla/StaticLocalPtr.h"
namespace mozilla {
ProcessHashKey::ProcessHashKey(GeckoProcessType aType, DWORD aPid)
: mType(aType), mPid(aPid) {}
bool ProcessHashKey::operator==(const ProcessHashKey& aOther) const {
return mPid == aOther.mPid && mType == aOther.mType;
}
PLDHashNumber ProcessHashKey::Hash() const { return HashGeneric(mPid, mType); }
void UntrustedModulesBackupData::Add(UntrustedModulesData&& aData) {
WithEntryHandle(
ProcessHashKey(aData.mProcessType, aData.mPid), [&](auto&& p) {
if (p) {
p.Data()->mData.Merge(std::move(aData));
} else {
p.Insert(MakeRefPtr<UntrustedModulesDataContainer>(std::move(aData)));
}
});
}
void UntrustedModulesBackupData::AddWithoutStacks(
UntrustedModulesData&& aData) {
WithEntryHandle(
ProcessHashKey(aData.mProcessType, aData.mPid), [&](auto&& p) {
if (p) {
p.Data()->mData.MergeWithoutStacks(std::move(aData));
} else {
aData.Truncate(true);
p.Insert(MakeRefPtr<UntrustedModulesDataContainer>(std::move(aData)));
}
});
}
/* static */
UntrustedModulesBackupService* UntrustedModulesBackupService::Get() {
if (!XRE_IsParentProcess()) {
return nullptr;
}
static StaticLocalRefPtr<UntrustedModulesBackupService> sInstance(
[]() -> already_AddRefed<UntrustedModulesBackupService> {
RefPtr<UntrustedModulesBackupService> instance(
new UntrustedModulesBackupService());
auto setClearOnShutdown = [ptr = &sInstance]() -> void {
ClearOnShutdown(ptr);
};
if (NS_IsMainThread()) {
setClearOnShutdown();
return instance.forget();
}
SchedulerGroup::Dispatch(NS_NewRunnableFunction(
"mozilla::UntrustedModulesBackupService::Get",
std::move(setClearOnShutdown)));
return instance.forget();
}());
return sInstance;
}
void UntrustedModulesBackupService::Backup(UntrustedModulesData&& aData) {
mStaging.Add(std::move(aData));
}
void UntrustedModulesBackupService::SettleAllStagingData() {
UntrustedModulesBackupData staging;
staging.SwapElements(mStaging);
for (auto&& iter = staging.Iter(); !iter.Done(); iter.Next()) {
if (!iter.Data()) {
continue;
}
mSettled.AddWithoutStacks(std::move(iter.Data()->mData));
}
}
} // namespace mozilla
|
