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      1 /*
      2  * Copyright (C) 2016 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_TABLE_ENTRY_H_
     18 #define FRAMEWORK_NATIVE_CMDS_LSHAL_TABLE_ENTRY_H_
     19 
     20 #include <stdint.h>
     21 
     22 #include <string>
     23 #include <vector>
     24 #include <iostream>
     25 
     26 #include <procpartition/procpartition.h>
     27 
     28 #include "TextTable.h"
     29 
     30 namespace android {
     31 namespace lshal {
     32 
     33 using android::procpartition::Partition;
     34 using Pids = std::vector<int32_t>;
     35 
     36 enum : unsigned int {
     37     HWSERVICEMANAGER_LIST, // through defaultServiceManager()->list()
     38     PTSERVICEMANAGER_REG_CLIENT, // through registerPassthroughClient
     39     LIST_DLLIB, // through listing dynamic libraries
     40 };
     41 using TableEntrySource = unsigned int;
     42 
     43 enum : unsigned int {
     44     ARCH_UNKNOWN = 0,
     45     ARCH32       = 1 << 0,
     46     ARCH64       = 1 << 1,
     47     ARCH_BOTH    = ARCH32 | ARCH64
     48 };
     49 using Architecture = unsigned int;
     50 
     51 enum class TableColumnType : unsigned int {
     52     INTERFACE_NAME,
     53     TRANSPORT,
     54     SERVER_PID,
     55     SERVER_CMD,
     56     SERVER_ADDR,
     57     CLIENT_PIDS,
     58     CLIENT_CMDS,
     59     ARCH,
     60     THREADS,
     61     RELEASED,
     62     HASH,
     63 };
     64 
     65 enum {
     66     NO_PID = -1,
     67     NO_PTR = 0
     68 };
     69 
     70 struct TableEntry {
     71     std::string interfaceName{};
     72     std::string transport{};
     73     int32_t serverPid{NO_PID};
     74     uint32_t threadUsage{0};
     75     uint32_t threadCount{0};
     76     std::string serverCmdline{};
     77     uint64_t serverObjectAddress{NO_PTR};
     78     Pids clientPids{};
     79     std::vector<std::string> clientCmdlines{};
     80     Architecture arch{ARCH_UNKNOWN};
     81     // empty: unknown, all zeros: unreleased, otherwise: released
     82     std::string hash{};
     83     Partition partition{Partition::UNKNOWN};
     84 
     85     static bool sortByInterfaceName(const TableEntry &a, const TableEntry &b) {
     86         return a.interfaceName < b.interfaceName;
     87     };
     88     static bool sortByServerPid(const TableEntry &a, const TableEntry &b) {
     89         return a.serverPid < b.serverPid;
     90     };
     91 
     92     std::string getThreadUsage() const {
     93         if (threadCount == 0) {
     94             return "N/A";
     95         }
     96 
     97         return std::to_string(threadUsage) + "/" + std::to_string(threadCount);
     98     }
     99 
    100     std::string isReleased() const;
    101 
    102     std::string getField(TableColumnType type) const;
    103 
    104     bool operator==(const TableEntry& other) const;
    105     std::string to_string() const;
    106 };
    107 
    108 using SelectedColumns = std::vector<TableColumnType>;
    109 
    110 class Table {
    111 public:
    112     using Entries = std::vector<TableEntry>;
    113 
    114     Entries::iterator begin() { return mEntries.begin(); }
    115     Entries::const_iterator begin() const { return mEntries.begin(); }
    116     Entries::iterator end() { return mEntries.end(); }
    117     Entries::const_iterator end() const { return mEntries.end(); }
    118     size_t size() const { return mEntries.size(); }
    119 
    120     void add(TableEntry&& entry) { mEntries.push_back(std::move(entry)); }
    121 
    122     void setSelectedColumns(const SelectedColumns& s) { mSelectedColumns = s; }
    123     const SelectedColumns& getSelectedColumns() const { return mSelectedColumns; }
    124 
    125     void setDescription(std::string&& d) { mDescription = std::move(d); }
    126 
    127     // Write table content.
    128     TextTable createTextTable(bool neat = true,
    129         const std::function<std::string(const std::string&)>& emitDebugInfo = nullptr) const;
    130 
    131 private:
    132     std::string mDescription;
    133     Entries mEntries;
    134     SelectedColumns mSelectedColumns;
    135 };
    136 
    137 using TableEntryCompare = std::function<bool(const TableEntry &, const TableEntry &)>;
    138 
    139 class MergedTable {
    140 public:
    141     MergedTable(std::vector<const Table*>&& tables) : mTables(std::move(tables)) {}
    142     TextTable createTextTable();
    143 private:
    144     std::vector<const Table*> mTables;
    145 };
    146 
    147 }  // namespace lshal
    148 }  // namespace android
    149 
    150 #endif  // FRAMEWORK_NATIVE_CMDS_LSHAL_TABLE_ENTRY_H_
    151