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//===-- HostProcessPosix.cpp ----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Host/Host.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Host/posix/HostProcessPosix.h"
#include "llvm/ADT/STLExtras.h"
#include <climits>
#include <csignal>
#include <unistd.h>
using namespace lldb_private;
static const int kInvalidPosixProcess = 0;
HostProcessPosix::HostProcessPosix()
: HostNativeProcessBase(kInvalidPosixProcess) {}
HostProcessPosix::HostProcessPosix(lldb::process_t process)
: HostNativeProcessBase(process) {}
HostProcessPosix::~HostProcessPosix() = default;
Status HostProcessPosix::Signal(int signo) const {
if (m_process == kInvalidPosixProcess) {
Status error;
error.SetErrorString("HostProcessPosix refers to an invalid process");
return error;
}
return HostProcessPosix::Signal(m_process, signo);
}
Status HostProcessPosix::Signal(lldb::process_t process, int signo) {
Status error;
if (-1 == ::kill(process, signo))
error.SetErrorToErrno();
return error;
}
Status HostProcessPosix::Terminate() { return Signal(SIGKILL); }
lldb::pid_t HostProcessPosix::GetProcessId() const { return m_process; }
bool HostProcessPosix::IsRunning() const {
if (m_process == kInvalidPosixProcess)
return false;
// Send this process the null signal. If it succeeds the process is running.
Status error = Signal(0);
return error.Success();
}
llvm::Expected<HostThread> HostProcessPosix::StartMonitoring(
const Host::MonitorChildProcessCallback &callback) {
return Host::StartMonitoringChildProcess(callback, m_process);
}
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