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>
17 using namespace llvm;
18 using namespace sys;
19
20 //===----------------------------------------------------------------------===//
21 //=== WARNING: Implementation here must contain only TRULY operating system
22 //=== independent code.
23 //===----------------------------------------------------------------------===//
24
25 static bool Execute(ProcessInfo &PI, StringRef Program, const char **args,
26 const char **env, const StringRef **Redirects,
27 unsigned memoryLimit, std::string *ErrMsg);
28
ExecuteAndWait(StringRef Program,const char ** args,const char ** envp,const StringRef ** redirects,unsigned secondsToWait,unsigned memoryLimit,std::string * ErrMsg,bool * ExecutionFailed)29 int 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
ExecuteNoWait(StringRef Program,const char ** args,const char ** envp,const StringRef ** redirects,unsigned memoryLimit,std::string * ErrMsg,bool * ExecutionFailed)48 ProcessInfo 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