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2565943289
cleanly dissociated from the sys::Path class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16315 91177308-0d34-0410-b5e6-96231b3b80d8
70 lines
2.9 KiB
C++
70 lines
2.9 KiB
C++
//===- llvm/System/Program.h ------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the llvm::sys::Program class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_PROGRAM_H
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#define LLVM_SYSTEM_PROGRAM_H
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#include "llvm/System/Path.h"
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#include <vector>
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namespace llvm {
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namespace sys {
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/// This class provides an abstraction for programs that are executable by the
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/// operating system. It provides a platform generic way to find executable
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/// programs from the path and to execute them. The sys::Path class is used to
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/// locate the Program.
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/// @since 1.4
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/// @brief An abstraction for finding and executing programs.
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class Program {
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/// @name Methods
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/// @{
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public:
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/// This static constructor (factory) will attempt to locate a program in
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/// the operating system's file system using some pre-determined set of
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/// locations to search (e.g. the PATH on Unix).
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/// @returns A Path object initialized to the path of the program or a
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/// Path object that is empty (invalid) if the program could not be found.
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/// @throws nothing
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/// @brief Construct a Program by finding it by name.
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static Path FindProgramByName(const std::string& name);
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/// This function executes the program using the \p arguments provided and
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/// waits for the program to exit. This function will block the current
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/// program until the invoked program exits. The invoked program will
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/// inherit the stdin, stdout, and stderr file descriptors, the
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/// environment and other configuration settings of the inoking program.
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/// If Path::executable() does not return true when this function is
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/// called then a std::string is thrown.
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/// Path::executable() returns true.
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/// @param path A sys::Path object providing the path of the program to be
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/// executed. It is presumed this is the result of the FindProgramByName
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/// method.
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/// @param args A vector of strings that are passed to the program.
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/// The first element should *not* be the name of the program.
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/// @returns an integer result code indicating the status of the program.
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/// @throws std::string on a variety of error conditions or if the invoked
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/// program aborted abnormally.
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/// @see FindProgrambyName
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/// @brief Executes the program with the given set of \p arguments.
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static int ExecuteAndWait(const Path& path,
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const std::vector<std::string>& args);
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/// @}
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};
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}
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}
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// vim: sw=2
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#endif
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