1 /* 2 * Copyright (C) 2017 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 #ifndef FRAMEWORK_NATIVE_CMDS_LSHAL_LIST_COMMAND_H_ 18 #define FRAMEWORK_NATIVE_CMDS_LSHAL_LIST_COMMAND_H_ 19 20 #include <stdint.h> 21 22 #include <fstream> 23 #include <string> 24 #include <vector> 25 26 #include <android-base/macros.h> 27 #include <android/hidl/manager/1.0/IServiceManager.h> 28 29 #include "NullableOStream.h" 30 #include "TableEntry.h" 31 #include "utils.h" 32 33 namespace android { 34 namespace lshal { 35 36 class Lshal; 37 38 class ListCommand { 39 public: 40 ListCommand(Lshal &lshal); 41 Status main(const std::string &command, const Arg &arg); 42 private: 43 Status parseArgs(const std::string &command, const Arg &arg); 44 Status fetch(); 45 void postprocess(); 46 void dump(); 47 void putEntry(TableEntrySource source, TableEntry &&entry); 48 Status fetchPassthrough(const sp<::android::hidl::manager::V1_0::IServiceManager> &manager); 49 Status fetchBinderized(const sp<::android::hidl::manager::V1_0::IServiceManager> &manager); 50 Status fetchAllLibraries(const sp<::android::hidl::manager::V1_0::IServiceManager> &manager); 51 bool getReferencedPids( 52 pid_t serverPid, std::map<uint64_t, Pids> *objects) const; 53 void dumpTable(); 54 void dumpVintf() const; 55 void printLine( 56 const std::string &interfaceName, 57 const std::string &transport, 58 const std::string &arch, 59 const std::string &server, 60 const std::string &serverCmdline, 61 const std::string &address, const std::string &clients, 62 const std::string &clientCmdlines) const ; 63 // Return /proc/{pid}/cmdline if it exists, else empty string. 64 const std::string &getCmdline(pid_t pid); 65 // Call getCmdline on all pid in pids. If it returns empty string, the process might 66 // have died, and the pid is removed from pids. 67 void removeDeadProcesses(Pids *pids); 68 void forEachTable(const std::function<void(Table &)> &f); 69 void forEachTable(const std::function<void(const Table &)> &f) const; 70 71 Lshal &mLshal; 72 73 Table mServicesTable{}; 74 Table mPassthroughRefTable{}; 75 Table mImplementationsTable{}; 76 77 NullableOStream<std::ostream> mErr; 78 NullableOStream<std::ostream> mOut; 79 NullableOStream<std::ofstream> mFileOutput = nullptr; 80 TableEntryCompare mSortColumn = nullptr; 81 TableEntrySelect mSelectedColumns = 0; 82 // If true, cmdlines will be printed instead of pid. 83 bool mEnableCmdlines = false; 84 85 // If true, calls IBase::debug(...) on each service. 86 bool mEmitDebugInfo = false; 87 88 bool mVintf = false; 89 // If an entry does not exist, need to ask /proc/{pid}/cmdline to get it. 90 // If an entry exist but is an empty string, process might have died. 91 // If an entry exist and not empty, it contains the cached content of /proc/{pid}/cmdline. 92 std::map<pid_t, std::string> mCmdlines; 93 94 DISALLOW_COPY_AND_ASSIGN(ListCommand); 95 }; 96 97 98 } // namespace lshal 99 } // namespace android 100 101 #endif // FRAMEWORK_NATIVE_CMDS_LSHAL_LIST_COMMAND_H_ 102