1//===-- Program.cpp - Implement OS Program Concept --------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//  This file implements the operating system Program concept.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/Program.h"
15#include "llvm/Config/config.h"
16#include <system_error>
17using namespace llvm;
18using namespace sys;
19
20//===----------------------------------------------------------------------===//
21//=== WARNING: Implementation here must contain only TRULY operating system
22//===          independent code.
23//===----------------------------------------------------------------------===//
24
25static bool Execute(ProcessInfo &PI, StringRef Program, const char **args,
26                    const char **env, const StringRef **Redirects,
27                    unsigned memoryLimit, std::string *ErrMsg);
28
29int sys::ExecuteAndWait(StringRef Program, const char **args, const char **envp,
30                        const StringRef **redirects, unsigned secondsToWait,
31                        unsigned memoryLimit, std::string *ErrMsg,
32                        bool *ExecutionFailed) {
33  ProcessInfo PI;
34  if (Execute(PI, Program, args, envp, redirects, memoryLimit, ErrMsg)) {
35    if (ExecutionFailed)
36      *ExecutionFailed = false;
37    ProcessInfo Result = Wait(
38        PI, secondsToWait, /*WaitUntilTerminates=*/secondsToWait == 0, ErrMsg);
39    return Result.ReturnCode;
40  }
41
42  if (ExecutionFailed)
43    *ExecutionFailed = true;
44
45  return -1;
46}
47
48ProcessInfo sys::ExecuteNoWait(StringRef Program, const char **args,
49                               const char **envp, const StringRef **redirects,
50                               unsigned memoryLimit, std::string *ErrMsg,
51                               bool *ExecutionFailed) {
52  ProcessInfo PI;
53  if (ExecutionFailed)
54    *ExecutionFailed = false;
55  if (!Execute(PI, Program, args, envp, redirects, memoryLimit, ErrMsg))
56    if (ExecutionFailed)
57      *ExecutionFailed = true;
58
59  return PI;
60}
61
62// Include the platform-specific parts of this class.
63#ifdef LLVM_ON_UNIX
64#include "Unix/Program.inc"
65#endif
66#ifdef LLVM_ON_WIN32
67#include "Windows/Program.inc"
68#endif
69