mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 18:29:46 +00:00
- New ProcessInfo class to encapsulate information about child processes. - Generalized the Wait() to support non-blocking wait on child processes. - ExecuteNoWait() now returns a ProcessInfo object with information about the launched child. Users will be able to use this object to perform non-blocking wait. - ExecuteNoWait() now accepts an ExecutionFailed param that tells if execution failed or not. These changes will allow users to implement basic process parallel tools. Differential Revision: http://llvm-reviews.chandlerc.com/D1728 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191763 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
//===-- Program.cpp - Implement OS Program Concept --------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This header file implements the operating system Program concept.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/Program.h"
|
|
#include "llvm/Config/config.h"
|
|
#include "llvm/Support/system_error.h"
|
|
using namespace llvm;
|
|
using namespace sys;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
//=== WARNING: Implementation here must contain only TRULY operating system
|
|
//=== independent code.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
static bool Execute(ProcessInfo &PI, StringRef Program, const char **args,
|
|
const char **env, const StringRef **Redirects,
|
|
unsigned memoryLimit, std::string *ErrMsg);
|
|
|
|
int sys::ExecuteAndWait(StringRef Program, const char **args, const char **envp,
|
|
const StringRef **redirects, unsigned secondsToWait,
|
|
unsigned memoryLimit, std::string *ErrMsg,
|
|
bool *ExecutionFailed) {
|
|
ProcessInfo PI;
|
|
if (Execute(PI, Program, args, envp, redirects, memoryLimit, ErrMsg)) {
|
|
if (ExecutionFailed)
|
|
*ExecutionFailed = false;
|
|
ProcessInfo Result = Wait(PI, secondsToWait, true, ErrMsg);
|
|
return Result.ReturnCode;
|
|
}
|
|
|
|
if (ExecutionFailed)
|
|
*ExecutionFailed = true;
|
|
|
|
return -1;
|
|
}
|
|
|
|
ProcessInfo sys::ExecuteNoWait(StringRef Program, const char **args,
|
|
const char **envp, const StringRef **redirects,
|
|
unsigned memoryLimit, std::string *ErrMsg,
|
|
bool *ExecutionFailed) {
|
|
ProcessInfo PI;
|
|
if (ExecutionFailed)
|
|
*ExecutionFailed = false;
|
|
if (!Execute(PI, Program, args, envp, redirects, memoryLimit, ErrMsg))
|
|
if (ExecutionFailed)
|
|
*ExecutionFailed = true;
|
|
|
|
return PI;
|
|
}
|
|
|
|
// Include the platform-specific parts of this class.
|
|
#ifdef LLVM_ON_UNIX
|
|
#include "Unix/Program.inc"
|
|
#endif
|
|
#ifdef LLVM_ON_WIN32
|
|
#include "Windows/Program.inc"
|
|
#endif
|