66 lines · cpp
1//===-- HostProcessPosix.cpp ----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "lldb/Host/Host.h"10#include "lldb/Host/FileSystem.h"11#include "lldb/Host/posix/HostProcessPosix.h"12 13#include "llvm/ADT/STLExtras.h"14 15#include <climits>16#include <csignal>17#include <unistd.h>18 19using namespace lldb_private;20 21static const int kInvalidPosixProcess = 0;22 23HostProcessPosix::HostProcessPosix()24 : HostNativeProcessBase(kInvalidPosixProcess) {}25 26HostProcessPosix::HostProcessPosix(lldb::process_t process)27 : HostNativeProcessBase(process) {}28 29HostProcessPosix::~HostProcessPosix() = default;30 31Status HostProcessPosix::Signal(int signo) const {32 if (m_process == kInvalidPosixProcess) {33 return Status::FromErrorString(34 "HostProcessPosix refers to an invalid process");35 }36 37 return HostProcessPosix::Signal(m_process, signo);38}39 40Status HostProcessPosix::Signal(lldb::process_t process, int signo) {41 Status error;42 43 if (-1 == ::kill(process, signo))44 return Status::FromErrno();45 46 return error;47}48 49Status HostProcessPosix::Terminate() { return Signal(SIGKILL); }50 51lldb::pid_t HostProcessPosix::GetProcessId() const { return m_process; }52 53bool HostProcessPosix::IsRunning() const {54 if (m_process == kInvalidPosixProcess)55 return false;56 57 // Send this process the null signal. If it succeeds the process is running.58 Status error = Signal(0);59 return error.Success();60}61 62llvm::Expected<HostThread> HostProcessPosix::StartMonitoring(63 const Host::MonitorChildProcessCallback &callback) {64 return Host::StartMonitoringChildProcess(callback, m_process);65}66