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//===-- SBCommunication.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/API/SBCommunication.h"
#include "lldb/API/SBBroadcaster.h"
#include "lldb/Core/ThreadedCommunication.h"
#include "lldb/Host/ConnectionFileDescriptor.h"
#include "lldb/Host/Host.h"
#include "lldb/Utility/Instrumentation.h"
using namespace lldb;
using namespace lldb_private;
SBCommunication::SBCommunication() { LLDB_INSTRUMENT_VA(this); }
SBCommunication::SBCommunication(const char *broadcaster_name)
: m_opaque(new ThreadedCommunication(broadcaster_name)),
m_opaque_owned(true) {
LLDB_INSTRUMENT_VA(this, broadcaster_name);
}
SBCommunication::~SBCommunication() {
if (m_opaque && m_opaque_owned)
delete m_opaque;
m_opaque = nullptr;
m_opaque_owned = false;
}
bool SBCommunication::IsValid() const {
LLDB_INSTRUMENT_VA(this);
return this->operator bool();
}
SBCommunication::operator bool() const {
LLDB_INSTRUMENT_VA(this);
return m_opaque != nullptr;
}
bool SBCommunication::GetCloseOnEOF() {
LLDB_INSTRUMENT_VA(this);
if (m_opaque)
return m_opaque->GetCloseOnEOF();
return false;
}
void SBCommunication::SetCloseOnEOF(bool b) {
LLDB_INSTRUMENT_VA(this, b);
if (m_opaque)
m_opaque->SetCloseOnEOF(b);
}
ConnectionStatus SBCommunication::Connect(const char *url) {
LLDB_INSTRUMENT_VA(this, url);
if (m_opaque) {
if (!m_opaque->HasConnection())
m_opaque->SetConnection(Host::CreateDefaultConnection(url));
return m_opaque->Connect(url, nullptr);
}
return eConnectionStatusNoConnection;
}
ConnectionStatus SBCommunication::AdoptFileDesriptor(int fd, bool owns_fd) {
LLDB_INSTRUMENT_VA(this, fd, owns_fd);
ConnectionStatus status = eConnectionStatusNoConnection;
if (m_opaque) {
if (m_opaque->HasConnection()) {
if (m_opaque->IsConnected())
m_opaque->Disconnect();
}
m_opaque->SetConnection(
std::make_unique<ConnectionFileDescriptor>(fd, owns_fd));
if (m_opaque->IsConnected())
status = eConnectionStatusSuccess;
else
status = eConnectionStatusLostConnection;
}
return status;
}
ConnectionStatus SBCommunication::Disconnect() {
LLDB_INSTRUMENT_VA(this);
ConnectionStatus status = eConnectionStatusNoConnection;
if (m_opaque)
status = m_opaque->Disconnect();
return status;
}
bool SBCommunication::IsConnected() const {
LLDB_INSTRUMENT_VA(this);
return m_opaque ? m_opaque->IsConnected() : false;
}
size_t SBCommunication::Read(void *dst, size_t dst_len, uint32_t timeout_usec,
ConnectionStatus &status) {
LLDB_INSTRUMENT_VA(this, dst, dst_len, timeout_usec, status);
size_t bytes_read = 0;
Timeout<std::micro> timeout = timeout_usec == UINT32_MAX
? Timeout<std::micro>(std::nullopt)
: std::chrono::microseconds(timeout_usec);
if (m_opaque)
bytes_read = m_opaque->Read(dst, dst_len, timeout, status, nullptr);
else
status = eConnectionStatusNoConnection;
return bytes_read;
}
size_t SBCommunication::Write(const void *src, size_t src_len,
ConnectionStatus &status) {
LLDB_INSTRUMENT_VA(this, src, src_len, status);
size_t bytes_written = 0;
if (m_opaque)
bytes_written = m_opaque->Write(src, src_len, status, nullptr);
else
status = eConnectionStatusNoConnection;
return bytes_written;
}
bool SBCommunication::ReadThreadStart() {
LLDB_INSTRUMENT_VA(this);
return m_opaque ? m_opaque->StartReadThread() : false;
}
bool SBCommunication::ReadThreadStop() {
LLDB_INSTRUMENT_VA(this);
return m_opaque ? m_opaque->StopReadThread() : false;
}
bool SBCommunication::ReadThreadIsRunning() {
LLDB_INSTRUMENT_VA(this);
return m_opaque ? m_opaque->ReadThreadIsRunning() : false;
}
bool SBCommunication::SetReadThreadBytesReceivedCallback(
ReadThreadBytesReceived callback, void *callback_baton) {
LLDB_INSTRUMENT_VA(this, callback, callback_baton);
bool result = false;
if (m_opaque) {
m_opaque->SetReadThreadBytesReceivedCallback(callback, callback_baton);
result = true;
}
return result;
}
SBBroadcaster SBCommunication::GetBroadcaster() {
LLDB_INSTRUMENT_VA(this);
SBBroadcaster broadcaster(m_opaque, false);
return broadcaster;
}
const char *SBCommunication::GetBroadcasterClass() {
LLDB_INSTRUMENT();
return ConstString(ThreadedCommunication::GetStaticBroadcasterClass())
.AsCString();
}
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