1 /* 2 * Copyright 2018 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef TEST_SCENARIO_COLUMN_PRINTER_H_ 11 #define TEST_SCENARIO_COLUMN_PRINTER_H_ 12 #include <functional> 13 #include <memory> 14 #include <string> 15 #include <vector> 16 17 #include "rtc_base/constructor_magic.h" 18 #include "rtc_base/strings/string_builder.h" 19 #include "test/logging/log_writer.h" 20 21 namespace webrtc { 22 namespace test { 23 class ColumnPrinter { 24 public: 25 ColumnPrinter(const ColumnPrinter&); 26 ~ColumnPrinter(); 27 static ColumnPrinter Fixed(const char* headers, std::string fields); 28 static ColumnPrinter Lambda( 29 const char* headers, 30 std::function<void(rtc::SimpleStringBuilder&)> printer, 31 size_t max_length = 256); 32 33 protected: 34 friend class StatesPrinter; 35 const char* headers_; 36 std::function<void(rtc::SimpleStringBuilder&)> printer_; 37 size_t max_length_; 38 39 private: 40 ColumnPrinter(const char* headers, 41 std::function<void(rtc::SimpleStringBuilder&)> printer, 42 size_t max_length); 43 }; 44 45 class StatesPrinter { 46 public: 47 StatesPrinter(std::unique_ptr<RtcEventLogOutput> writer, 48 std::vector<ColumnPrinter> printers); 49 RTC_DISALLOW_COPY_AND_ASSIGN(StatesPrinter); 50 ~StatesPrinter(); 51 void PrintHeaders(); 52 void PrintRow(); 53 54 private: 55 const std::unique_ptr<RtcEventLogOutput> writer_; 56 const std::vector<ColumnPrinter> printers_; 57 size_t buffer_size_ = 0; 58 std::vector<char> buffer_; 59 }; 60 } // namespace test 61 } // namespace webrtc 62 63 #endif // TEST_SCENARIO_COLUMN_PRINTER_H_ 64