1 //===- SystemUtils.h - Utilities to do low-level system stuff ---*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains functions used to do a variety of low-level, often
11 // system-specific, tasks.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_SUPPORT_SYSTEMUTILS_H
16 #define LLVM_SUPPORT_SYSTEMUTILS_H
18 #include "llvm/System/Program.h"
22 /// Determine if the ostream provided is connected to the std::cout and
23 /// displayed or not (to a console window). If so, generate a warning message
24 /// advising against display of bytecode and return true. Otherwise just return
26 /// @brief Check for output written to a console
27 bool CheckBytecodeOutputToConsole(std::ostream* stream_to_check);
29 /// FindExecutable - Find a named executable, giving the argv[0] of program
30 /// being executed. This allows us to find another LLVM tool if it is built into
31 /// the same directory, but that directory is neither the current directory, nor
32 /// in the PATH. If the executable cannot be found, return an empty string.
33 /// @brief Find a named executable.
34 sys::Path FindExecutable(const std::string &ExeName,
35 const std::string &ProgramPath);
37 /// RunProgramWithTimeout - This function provides an alternate interface to the
38 /// sys::Program::ExecuteAndWait interface.
39 /// @see sys:Program::ExecuteAndWait
40 inline int RunProgramWithTimeout(const sys::Path &ProgramPath,
42 const sys::Path &StdInFile,
43 const sys::Path &StdOutFile,
44 const sys::Path &StdErrFile,
45 unsigned NumSeconds = 0) {
46 const sys::Path* redirects[3];
47 redirects[0] = &StdInFile;
48 redirects[1] = &StdOutFile;
49 redirects[2] = &StdErrFile;
52 sys::Program::ExecuteAndWait(ProgramPath, Args, 0, redirects, NumSeconds);
55 } // End llvm namespace