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-exception |
6 | // |
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 | |
19 | using namespace lldb_private; |
20 | |
21 | static const int kInvalidPosixProcess = 0; |
22 | |
23 | HostProcessPosix::HostProcessPosix() |
24 | : HostNativeProcessBase(kInvalidPosixProcess) {} |
25 | |
26 | HostProcessPosix::HostProcessPosix(lldb::process_t process) |
27 | : HostNativeProcessBase(process) {} |
28 | |
29 | HostProcessPosix::~HostProcessPosix() = default; |
30 | |
31 | Status HostProcessPosix::Signal(int signo) const { |
32 | if (m_process == kInvalidPosixProcess) { |
33 | return Status::FromErrorString( |
34 | str: "HostProcessPosix refers to an invalid process"); |
35 | } |
36 | |
37 | return HostProcessPosix::Signal(process: m_process, signo); |
38 | } |
39 | |
40 | Status HostProcessPosix::Signal(lldb::process_t process, int signo) { |
41 | Status error; |
42 | |
43 | if (-1 == ::kill(pid: process, sig: signo)) |
44 | return Status::FromErrno(); |
45 | |
46 | return error; |
47 | } |
48 | |
49 | Status HostProcessPosix::Terminate() { return Signal(SIGKILL); } |
50 | |
51 | lldb::pid_t HostProcessPosix::GetProcessId() const { return m_process; } |
52 | |
53 | bool 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(signo: 0); |
59 | return error.Success(); |
60 | } |
61 | |
62 | llvm::Expected<HostThread> HostProcessPosix::StartMonitoring( |
63 | const Host::MonitorChildProcessCallback &callback) { |
64 | return Host::StartMonitoringChildProcess(callback, pid: m_process); |
65 | } |
66 |