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