diff options
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp | 54 | ||||
| -rw-r--r-- | contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h | 4 |
2 files changed, 32 insertions, 26 deletions
diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp b/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp index 63c7f00dd751..2778ae13a9f2 100644 --- a/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp +++ b/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.cpp @@ -708,7 +708,7 @@ ProcessMonitor::ProcessMonitor( const lldb_private::ProcessLaunchInfo & /* launch_info */, lldb_private::Status &error) : m_process(static_cast<ProcessFreeBSD *>(process)), - m_operation_thread(nullptr), m_monitor_thread(nullptr), m_pid(LLDB_INVALID_PROCESS_ID), m_terminal_fd(-1), m_operation(0) { + m_operation_thread(), m_monitor_thread(), m_pid(LLDB_INVALID_PROCESS_ID), m_terminal_fd(-1), m_operation(0) { using namespace std::placeholders; std::unique_ptr<LaunchArgs> args( @@ -735,20 +735,22 @@ ProcessMonitor::ProcessMonitor( } // Finally, start monitoring the child process for change in state. - m_monitor_thread = Host::StartMonitoringChildProcess( + llvm::Expected<lldb_private::HostThread> monitor_thread = + Host::StartMonitoringChildProcess( std::bind(&ProcessMonitor::MonitorCallback, this, _1, _2, _3, _4), GetPID(), true); - if (!m_monitor_thread->IsJoinable()) { + if (!monitor_thread || !monitor_thread->IsJoinable()) { error.SetErrorToGenericError(); error.SetErrorString("Process launch failed."); return; } + m_monitor_thread = *monitor_thread; } ProcessMonitor::ProcessMonitor(ProcessFreeBSD *process, lldb::pid_t pid, lldb_private::Status &error) : m_process(static_cast<ProcessFreeBSD *>(process)), - m_operation_thread(nullptr), m_monitor_thread(nullptr), m_pid(pid), m_terminal_fd(-1), m_operation(0) { + m_operation_thread(), m_monitor_thread(), m_pid(pid), m_terminal_fd(-1), m_operation(0) { using namespace std::placeholders; sem_init(&m_operation_pending, 0, 0); @@ -773,14 +775,16 @@ ProcessMonitor::ProcessMonitor(ProcessFreeBSD *process, lldb::pid_t pid, } // Finally, start monitoring the child process for change in state. - m_monitor_thread = Host::StartMonitoringChildProcess( + llvm::Expected<lldb_private::HostThread> monitor_thread = + Host::StartMonitoringChildProcess( std::bind(&ProcessMonitor::MonitorCallback, this, _1, _2, _3, _4), GetPID(), true); - if (!m_monitor_thread->IsJoinable()) { + if (!monitor_thread || !monitor_thread->IsJoinable()) { error.SetErrorToGenericError(); error.SetErrorString("Process attach failed."); return; } + m_monitor_thread = *monitor_thread; } ProcessMonitor::~ProcessMonitor() { StopMonitor(); } @@ -789,13 +793,15 @@ ProcessMonitor::~ProcessMonitor() { StopMonitor(); } void ProcessMonitor::StartLaunchOpThread(LaunchArgs *args, Status &error) { static const char *g_thread_name = "freebsd.op"; - if (m_operation_thread->IsJoinable()) + if (m_operation_thread && m_operation_thread->IsJoinable()) return; - m_operation_thread = - ThreadLauncher::LaunchThread(g_thread_name, LaunchOpThread, args); - if (!m_operation_thread) - error = m_operation_thread.takeError(); + llvm::Expected<lldb_private::HostThread> operation_thread = + ThreadLauncher::LaunchThread(g_thread_name, LaunchOpThread, args); + if (operation_thread) + m_operation_thread = *operation_thread; + else + error = operation_thread.takeError(); } void *ProcessMonitor::LaunchOpThread(void *arg) { @@ -957,14 +963,15 @@ void ProcessMonitor::StartAttachOpThread(AttachArgs *args, lldb_private::Status &error) { static const char *g_thread_name = "freebsd.op"; - if (m_operation_thread->IsJoinable()) + if (m_operation_thread && m_operation_thread->IsJoinable()) return; - m_operation_thread = - ThreadLauncher::LaunchThread(g_thread_name, AttachOpThread, args); - - if (!m_operation_thread) - error = m_operation_thread.takeError(); + llvm::Expected<lldb_private::HostThread> operation_thread = + ThreadLauncher::LaunchThread(g_thread_name, AttachOpThread, args); + if (operation_thread) + m_operation_thread = *operation_thread; + else + error = operation_thread.takeError(); } void *ProcessMonitor::AttachOpThread(void *arg) { @@ -1384,7 +1391,7 @@ bool ProcessMonitor::DupDescriptor(const FileSpec &file_spec, int fd, } void ProcessMonitor::StopMonitoringChildProcess() { - if (m_monitor_thread->IsJoinable()) { + if (m_monitor_thread && m_monitor_thread->IsJoinable()) { m_monitor_thread->Cancel(); m_monitor_thread->Join(nullptr); m_monitor_thread->Reset(); @@ -1422,10 +1429,9 @@ void ProcessMonitor::StopMonitor() { bool ProcessMonitor::WaitForInitialTIDStop(lldb::tid_t tid) { return true; } void ProcessMonitor::StopOpThread() { - if (!m_operation_thread->IsJoinable()) - return; - - m_operation_thread->Cancel(); - m_operation_thread->Join(nullptr); - m_operation_thread->Reset(); + if (m_operation_thread && m_operation_thread->IsJoinable()) { + m_operation_thread->Cancel(); + m_operation_thread->Join(nullptr); + m_operation_thread->Reset(); + } } diff --git a/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h b/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h index 2adcc449c5c6..c5edfc0be95a 100644 --- a/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h +++ b/contrib/llvm/tools/lldb/source/Plugins/Process/FreeBSD/ProcessMonitor.h @@ -183,8 +183,8 @@ public: private: ProcessFreeBSD *m_process; - llvm::Expected<lldb_private::HostThread> m_operation_thread; - llvm::Expected<lldb_private::HostThread> m_monitor_thread; + llvm::Optional<lldb_private::HostThread> m_operation_thread; + llvm::Optional<lldb_private::HostThread> m_monitor_thread; lldb::pid_t m_pid; int m_terminal_fd; |