SystemUtils.h revision 35d402fbbaaa7b9db1b56757fb1b390a3889ebad
1//===- SystemUtils.h - Utilities to do low-level system stuff --*- C++ -*--===// 2// 3// This file contains functions used to do a variety of low-level, often 4// system-specific, tasks. 5// 6//===----------------------------------------------------------------------===// 7 8#ifndef SYSTEMUTILS_H 9#define SYSTEMUTILS_H 10 11#include <string> 12 13/// isExecutableFile - This function returns true if the filename specified 14/// exists and is executable. 15/// 16bool isExecutableFile(const std::string &ExeFileName); 17 18/// FindExecutable - Find a named executable, giving the argv[0] of program 19/// being executed. This allows us to find another LLVM tool if it is built into 20/// the same directory, but that directory is neither the current directory, nor 21/// in the PATH. If the executable cannot be found, return an empty string. 22/// 23std::string FindExecutable(const std::string &ExeName, 24 const std::string &ProgramPath); 25 26/// RunProgramWithTimeout - This function executes the specified program, with 27/// the specified null-terminated argument array, with the stdin/out/err fd's 28/// redirected, with a timeout specified on the commandline. This terminates 29/// the calling program if there is an error executing the specified program. 30/// It returns the return value of the program, or -1 if a timeout is detected. 31/// 32int RunProgramWithTimeout(const std::string &ProgramPath, const char **Args, 33 const std::string &StdInFile = "", 34 const std::string &StdOutFile = "", 35 const std::string &StdErrFile = ""); 36 37#endif 38