1 /*
2 * Copyright 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "bt_shim_storage"
18
19 #include "main/shim/dumpsys.h"
20
21 #include <com_android_bluetooth_flags.h>
22
23 #include <unordered_map>
24
25 #include "main/shim/entry.h"
26 #include "main/shim/shim.h"
27 #include "main/shim/stack.h"
28 #include "shim/dumpsys.h"
29
30 namespace {
31
32 constexpr char kModuleName[] = "shim::legacy::dumpsys";
33 static std::unordered_map<const void*, bluetooth::shim::DumpsysFunction> dumpsys_functions_;
34
35 } // namespace
36
RegisterDumpsysFunction(const void * token,DumpsysFunction func)37 void bluetooth::shim::RegisterDumpsysFunction(const void* token, DumpsysFunction func) {
38 log::assert_that(dumpsys_functions_.find(token) == dumpsys_functions_.end(),
39 "assert failed: dumpsys_functions_.find(token) == dumpsys_functions_.end()");
40 dumpsys_functions_.insert({token, func});
41 }
42
UnregisterDumpsysFunction(const void * token)43 void bluetooth::shim::UnregisterDumpsysFunction(const void* token) {
44 log::assert_that(dumpsys_functions_.find(token) != dumpsys_functions_.end(),
45 "assert failed: dumpsys_functions_.find(token) != dumpsys_functions_.end()");
46 dumpsys_functions_.erase(token);
47 }
48
Dump(int fd,const char ** args)49 void bluetooth::shim::Dump(int fd, const char** args) {
50 if (dumpsys_functions_.empty()) {
51 dprintf(fd, "%s No registered dumpsys shim legacy targets\n", kModuleName);
52 } else {
53 dprintf(fd, "%s Dumping shim legacy targets:%zd\n", kModuleName, dumpsys_functions_.size());
54 for (auto& dumpsys : dumpsys_functions_) {
55 dumpsys.second(fd);
56 }
57 }
58 std::promise<void> promise;
59 std::future future = promise.get_future();
60 if (bluetooth::shim::Stack::GetInstance()->CallOnModule<shim::Dumpsys>(
61 [&promise, fd, args](shim::Dumpsys* mod) {
62 mod->Dump(fd, args, std::move(promise));
63 })) {
64 log::assert_that(future.wait_for(std::chrono::seconds(1)) == std::future_status::ready,
65 "Timed out waiting for dumpsys to complete");
66 } else {
67 dprintf(fd, "%s NOTE: gd dumpsys module not loaded or started\n", kModuleName);
68 }
69 }
70