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> 17 using namespace llvm; 18 using namespace sys; 19 20 //===----------------------------------------------------------------------===// 21 //=== WARNING: Implementation here must contain only TRULY operating system 22 //=== independent code. 23 //===----------------------------------------------------------------------===// 24 25 static bool Execute(ProcessInfo &PI, StringRef Program, const char **args, 26 const char **env, const StringRef **Redirects, 27 unsigned memoryLimit, std::string *ErrMsg); 28 29 int 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 48 ProcessInfo 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
