1 //===-- Process.cpp - Implement OS Process Concept --------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the operating system Process concept. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/ADT/StringExtras.h" 15 #include "llvm/Config/config.h" 16 #include "llvm/Support/FileSystem.h" 17 #include "llvm/Support/Path.h" 18 #include "llvm/Support/Process.h" 19 #include "llvm/Support/Program.h" 20 21 using namespace llvm; 22 using namespace sys; 23 24 //===----------------------------------------------------------------------===// 25 //=== WARNING: Implementation here must contain only TRULY operating system 26 //=== independent code. 27 //===----------------------------------------------------------------------===// 28 29 Optional<std::string> Process::FindInEnvPath(const std::string& EnvName, 30 const std::string& FileName) 31 { 32 Optional<std::string> FoundPath; 33 Optional<std::string> OptPath = Process::GetEnv(EnvName); 34 if (!OptPath.hasValue()) 35 return FoundPath; 36 37 const char EnvPathSeparatorStr[] = {EnvPathSeparator, '\0'}; 38 SmallVector<StringRef, 8> Dirs; 39 SplitString(OptPath.getValue(), Dirs, EnvPathSeparatorStr); 40 41 for (const auto &Dir : Dirs) { 42 if (Dir.empty()) 43 continue; 44 45 SmallString<128> FilePath(Dir); 46 path::append(FilePath, FileName); 47 if (fs::exists(Twine(FilePath))) { 48 FoundPath = FilePath.str(); 49 break; 50 } 51 } 52 53 return FoundPath; 54 } 55 56 57 #define COLOR(FGBG, CODE, BOLD) "\033[0;" BOLD FGBG CODE "m" 58 59 #define ALLCOLORS(FGBG,BOLD) {\ 60 COLOR(FGBG, "0", BOLD),\ 61 COLOR(FGBG, "1", BOLD),\ 62 COLOR(FGBG, "2", BOLD),\ 63 COLOR(FGBG, "3", BOLD),\ 64 COLOR(FGBG, "4", BOLD),\ 65 COLOR(FGBG, "5", BOLD),\ 66 COLOR(FGBG, "6", BOLD),\ 67 COLOR(FGBG, "7", BOLD)\ 68 } 69 70 static const char colorcodes[2][2][8][10] = { 71 { ALLCOLORS("3",""), ALLCOLORS("3","1;") }, 72 { ALLCOLORS("4",""), ALLCOLORS("4","1;") } 73 }; 74 75 // Include the platform-specific parts of this class. 76 #ifdef LLVM_ON_UNIX 77 #include "Unix/Process.inc" 78 #endif 79 #ifdef LLVM_ON_WIN32 80 #include "Windows/Process.inc" 81 #endif 82