1 /* 2 * Copyright (C) 2015 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 SIMPLE_PERF_UTILS_H_ 18 #define SIMPLE_PERF_UTILS_H_ 19 20 #include <stddef.h> 21 #include <stdio.h> 22 #include <stdlib.h> 23 #include <string> 24 #include <vector> 25 26 #define ALIGN(value, alignment) (((value) + (alignment)-1) & ~((alignment)-1)) 27 28 class LineReader { 29 public: 30 LineReader(FILE* fp) : fp_(fp), buf_(nullptr), bufsize_(0) { 31 } 32 33 ~LineReader() { 34 free(buf_); 35 fclose(fp_); 36 } 37 38 char* ReadLine() { 39 if (getline(&buf_, &bufsize_, fp_) != -1) { 40 return buf_; 41 } 42 return nullptr; 43 } 44 45 size_t MaxLineSize() { 46 return bufsize_; 47 } 48 49 private: 50 FILE* fp_; 51 char* buf_; 52 size_t bufsize_; 53 }; 54 55 void PrintIndented(size_t indent, const char* fmt, ...); 56 57 bool IsPowerOfTwo(uint64_t value); 58 59 bool NextArgumentOrError(const std::vector<std::string>& args, size_t* pi); 60 61 void GetEntriesInDir(const std::string& dirpath, std::vector<std::string>* files, 62 std::vector<std::string>* subdirs); 63 64 #endif // SIMPLE_PERF_UTILS_H_ 65
