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
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
|
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <hidl/HidlTransportSupport.h>
#include <hidl/HidlBinderSupport.h>
#include "InternalStatic.h"
#include <android-base/logging.h>
#include <android/hidl/manager/1.0/IServiceManager.h>
#include <linux/sched.h>
namespace android {
namespace hardware {
using ::android::hidl::base::V1_0::IBase;
void configureRpcThreadpool(size_t maxThreads, bool callerWillJoin) {
// TODO(b/32756130) this should be transport-dependent
configureBinderRpcThreadpool(maxThreads, callerWillJoin);
}
void joinRpcThreadpool() {
// TODO(b/32756130) this should be transport-dependent
joinBinderRpcThreadpool();
}
int setupTransportPolling() {
return setupBinderPolling();
}
status_t handleTransportPoll(int /*fd*/) {
return handleBinderPoll();
}
// TODO(b/122472540): only store one data item per object
template <typename V>
static void pruneMapLocked(ConcurrentMap<wp<IBase>, V>& map) {
std::vector<wp<IBase>> toDelete;
for (const auto& kv : map) {
if (kv.first.promote() == nullptr) {
toDelete.push_back(kv.first);
}
}
for (const auto& k : toDelete) {
map.eraseLocked(k);
}
}
bool setMinSchedulerPolicy(const sp<IBase>& service, int policy, int priority) {
if (service->isRemote()) {
LOG(ERROR) << "Can't set scheduler policy on remote service.";
return false;
}
switch (policy) {
case SCHED_NORMAL: {
if (priority < -20 || priority > 19) {
LOG(ERROR) << "Invalid priority for SCHED_NORMAL: " << priority;
return false;
}
} break;
case SCHED_RR:
case SCHED_FIFO: {
if (priority < 1 || priority > 99) {
LOG(ERROR) << "Invalid priority for " << policy << " policy: " << priority;
return false;
}
} break;
default: {
LOG(ERROR) << "Invalid scheduler policy " << policy;
return false;
}
}
// Due to ABI considerations, IBase cannot have a destructor to clean this up.
// So, because this API is so infrequently used, (expected to be usually only
// one time for a process, but it can be more), we are cleaning it up here.
std::unique_lock<std::mutex> lock = details::gServicePrioMap->lock();
pruneMapLocked(details::gServicePrioMap.get());
details::gServicePrioMap->setLocked(service, {policy, priority});
return true;
}
SchedPrio getMinSchedulerPolicy(const sp<IBase>& service) {
return details::gServicePrioMap->get(service, {SCHED_NORMAL, 0});
}
bool setRequestingSid(const sp<IBase>& service, bool requesting) {
if (service->isRemote()) {
LOG(ERROR) << "Can't set requesting sid on remote service.";
return false;
}
// Due to ABI considerations, IBase cannot have a destructor to clean this up.
// So, because this API is so infrequently used, (expected to be usually only
// one time for a process, but it can be more), we are cleaning it up here.
std::unique_lock<std::mutex> lock = details::gServiceSidMap->lock();
pruneMapLocked(details::gServiceSidMap.get());
details::gServiceSidMap->setLocked(service, requesting);
return true;
}
bool getRequestingSid(const sp<IBase>& service) {
return details::gServiceSidMap->get(service.get(), false);
}
bool interfacesEqual(const sp<IBase>& left, const sp<IBase>& right) {
if (left == nullptr || right == nullptr || !left->isRemote() || !right->isRemote()) {
return left == right;
}
return getOrCreateCachedBinder(left.get()) == getOrCreateCachedBinder(right.get());
}
namespace details {
int32_t getPidIfSharable() {
return getpid();
}
} // namespace details
} // namespace hardware
} // namespace android
|
