1 //===-- Program.cpp - Implement OS Program 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 Program concept. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/Support/Program.h" 15 #include "llvm/ADT/StringRef.h" 16 #include "llvm/Config/config.h" 17 #include <system_error> 18 using namespace llvm; 19 using namespace sys; 20 21 //===----------------------------------------------------------------------===// 22 //=== WARNING: Implementation here must contain only TRULY operating system 23 //=== independent code. 24 //===----------------------------------------------------------------------===// 25 26 static bool Execute(ProcessInfo &PI, StringRef Program, const char **args, 27 const char **env, const StringRef **Redirects, 28 unsigned memoryLimit, std::string *ErrMsg); 29 30 int sys::ExecuteAndWait(StringRef Program, const char **args, const char **envp, 31 const StringRef **redirects, unsigned secondsToWait, 32 unsigned memoryLimit, std::string *ErrMsg, 33 bool *ExecutionFailed) { 34 ProcessInfo PI; 35 if (Execute(PI, Program, args, envp, redirects, memoryLimit, ErrMsg)) { 36 if (ExecutionFailed) 37 *ExecutionFailed = false; 38 ProcessInfo Result = Wait( 39 PI, secondsToWait, /*WaitUntilTerminates=*/secondsToWait == 0, ErrMsg); 40 return Result.ReturnCode; 41 } 42 43 if (ExecutionFailed) 44 *ExecutionFailed = true; 45 46 return -1; 47 } 48 49 ProcessInfo sys::ExecuteNoWait(StringRef Program, const char **args, 50 const char **envp, const StringRef **redirects, 51 unsigned memoryLimit, std::string *ErrMsg, 52 bool *ExecutionFailed) { 53 ProcessInfo PI; 54 if (ExecutionFailed) 55 *ExecutionFailed = false; 56 if (!Execute(PI, Program, args, envp, redirects, memoryLimit, ErrMsg)) 57 if (ExecutionFailed) 58 *ExecutionFailed = true; 59 60 return PI; 61 } 62 63 // Include the platform-specific parts of this class. 64 #ifdef LLVM_ON_UNIX 65 #include "Unix/Program.inc" 66 #endif 67 #ifdef LLVM_ON_WIN32 68 #include "Windows/Program.inc" 69 #endif 70
