1 //===- SystemUtils.h - Utilities to do low-level system stuff ---*- C++ -*-===//
3 // This file contains functions used to do a variety of low-level, often
4 // system-specific, tasks.
6 //===----------------------------------------------------------------------===//
13 /// isExecutableFile - This function returns true if the filename specified
14 /// exists and is executable.
16 bool isExecutableFile(const std::string &ExeFileName);
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.
23 std::string FindExecutable(const std::string &ExeName,
24 const std::string &ProgramPath);
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.
32 int RunProgramWithTimeout(const std::string &ProgramPath, const char **Args,
33 const std::string &StdInFile = "",
34 const std::string &StdOutFile = "",
35 const std::string &StdErrFile = "");
37 /// ExecWait - Execute a program with the given arguments and environment and
38 /// wait for it to terminate.
40 int ExecWait (const char * const argv[], const char * const envp[]);