llvm-6502/include/llvm/Support/SystemUtils.h
2005-01-02 00:10:03 +00:00

61 lines
2.3 KiB
C++

//===- SystemUtils.h - Utilities to do low-level system stuff ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains functions used to do a variety of low-level, often
// system-specific, tasks.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_SYSTEMUTILS_H
#define LLVM_SUPPORT_SYSTEMUTILS_H
#include "llvm/System/Program.h"
namespace llvm {
/// Determine if the ostream provided is connected to the std::cout and
/// displayed or not (to a console window). If so, generate a warning message
/// advising against display of bytecode and return true. Otherwise just return
/// false
/// @brief Check for output written to a console
bool CheckBytecodeOutputToConsole(
std::ostream* stream_to_check, ///< The stream to be checked
bool print_warning = true ///< Control whether warnings are printed
);
/// FindExecutable - Find a named executable, giving the argv[0] of program
/// being executed. This allows us to find another LLVM tool if it is built into
/// the same directory, but that directory is neither the current directory, nor
/// in the PATH. If the executable cannot be found, return an empty string.
/// @brief Find a named executable.
sys::Path FindExecutable(const std::string &ExeName,
const std::string &ProgramPath);
/// RunProgramWithTimeout - This function provides an alternate interface to the
/// sys::Program::ExecuteAndWait interface.
/// @see sys:Program::ExecuteAndWait
inline int RunProgramWithTimeout(const sys::Path &ProgramPath,
const char **Args,
const sys::Path &StdInFile,
const sys::Path &StdOutFile,
const sys::Path &StdErrFile,
unsigned NumSeconds = 0) {
const sys::Path* redirects[3];
redirects[0] = &StdInFile;
redirects[1] = &StdOutFile;
redirects[2] = &StdErrFile;
return
sys::Program::ExecuteAndWait(ProgramPath, Args, 0, redirects, NumSeconds);
}
} // End llvm namespace
#endif