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      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_UTILS_H_
     18 #define FRAMEWORK_NATIVE_CMDS_LSHAL_UTILS_H_
     19 
     20 #include <iomanip>
     21 #include <iostream>
     22 #include <string>
     23 #include <sstream>
     24 #include <utility>
     25 #include <vector>
     26 
     27 namespace android {
     28 namespace lshal {
     29 
     30 enum : unsigned int {
     31     OK                                      = 0,
     32     // Return to Lshal::main to print help info.
     33     USAGE                                   = 1 << 0,
     34     // no service managers
     35     NO_BINDERIZED_MANAGER                   = 1 << 1,
     36     NO_PASSTHROUGH_MANAGER                  = 1 << 2,
     37     // general error in getting information from the three sources
     38     DUMP_BINDERIZED_ERROR                   = 1 << 3,
     39     DUMP_PASSTHROUGH_ERROR                  = 1 << 4,
     40     DUMP_ALL_LIBS_ERROR                     = 1 << 5,
     41     // I/O error in reading files
     42     IO_ERROR                                = 1 << 6,
     43     // Interface does not exist (IServiceManager::get fails)
     44     NO_INTERFACE                            = 1 << 7,
     45     // Transaction error from hwbinder transactions
     46     TRANSACTION_ERROR                       = 1 << 8,
     47     // No transaction error, but return value is unexpected.
     48     BAD_IMPL                                = 1 << 9,
     49     // Cannot fetch VINTF data.
     50     VINTF_ERROR                             = 1 << 10,
     51 };
     52 using Status = unsigned int;
     53 
     54 struct Arg {
     55     int argc;
     56     char **argv;
     57 };
     58 
     59 template <typename A>
     60 std::string join(const A &components, const std::string &separator) {
     61     std::stringstream out;
     62     bool first = true;
     63     for (const auto &component : components) {
     64         if (!first) {
     65             out << separator;
     66         }
     67         out << component;
     68 
     69         first = false;
     70     }
     71     return out.str();
     72 }
     73 
     74 std::string toHexString(uint64_t t);
     75 
     76 template<typename String>
     77 std::pair<String, String> splitFirst(const String &s, char c) {
     78     const char *pos = strchr(s.c_str(), c);
     79     if (pos == nullptr) {
     80         return {s, {}};
     81     }
     82     return {String(s.c_str(), pos - s.c_str()), String(pos + 1)};
     83 }
     84 
     85 std::vector<std::string> split(const std::string &s, char c);
     86 
     87 void replaceAll(std::string *s, char from, char to);
     88 
     89 }  // namespace lshal
     90 }  // namespace android
     91 
     92 #endif  // FRAMEWORK_NATIVE_CMDS_LSHAL_UTILS_H_
     93