82de8df26f
StructuredDataImpl ownership semantics is unclear at best. Various structures were holding a non-owning pointer to it, with a comment that the object is owned somewhere else. From what I was able to gather that "somewhere else" was the SBStructuredData object, but I am not sure that all created object eventually made its way there. (It wouldn't matter even if they did, as we are leaking most of our SBStructuredData objects.) Since StructuredDataImpl is just a collection of two (shared) pointers, there's really no point in elaborate lifetime management, so this patch replaces all StructuredDataImpl pointers with actual objects or unique_ptrs to it. This makes it much easier to resolve SBStructuredData leaks in a follow-up patch. Differential Revision: https://reviews.llvm.org/D114791
137 lines
3.9 KiB
C++
137 lines
3.9 KiB
C++
//===-- ScriptedThreadPythonInterface.cpp ---------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Host/Config.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/Logging.h"
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#include "lldb/lldb-enumerations.h"
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#if LLDB_ENABLE_PYTHON
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// LLDB Python header must be included first
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#include "lldb-python.h"
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#include "SWIGPythonBridge.h"
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#include "ScriptInterpreterPythonImpl.h"
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#include "ScriptedThreadPythonInterface.h"
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::python;
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using Locker = ScriptInterpreterPythonImpl::Locker;
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ScriptedThreadPythonInterface::ScriptedThreadPythonInterface(
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ScriptInterpreterPythonImpl &interpreter)
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: ScriptedThreadInterface(), ScriptedPythonInterface(interpreter) {}
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StructuredData::GenericSP ScriptedThreadPythonInterface::CreatePluginObject(
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const llvm::StringRef class_name, ExecutionContext &exe_ctx,
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StructuredData::DictionarySP args_sp) {
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if (class_name.empty())
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return {};
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ProcessSP process_sp = exe_ctx.GetProcessSP();
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StructuredDataImpl args_impl(args_sp);
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std::string error_string;
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Locker py_lock(&m_interpreter, Locker::AcquireLock | Locker::NoSTDIN,
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Locker::FreeLock);
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void *ret_val = LLDBSwigPythonCreateScriptedThread(
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class_name.str().c_str(), m_interpreter.GetDictionaryName(), process_sp,
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args_impl, error_string);
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if (!ret_val)
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return {};
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m_object_instance_sp =
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StructuredData::GenericSP(new StructuredPythonObject(ret_val));
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return m_object_instance_sp;
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}
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lldb::tid_t ScriptedThreadPythonInterface::GetThreadID() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_thread_id", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
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return LLDB_INVALID_THREAD_ID;
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return obj->GetIntegerValue(LLDB_INVALID_THREAD_ID);
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}
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llvm::Optional<std::string> ScriptedThreadPythonInterface::GetName() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_name", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
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return {};
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return obj->GetStringValue().str();
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}
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lldb::StateType ScriptedThreadPythonInterface::GetState() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_state", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
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return eStateInvalid;
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return static_cast<StateType>(obj->GetIntegerValue(eStateInvalid));
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}
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llvm::Optional<std::string> ScriptedThreadPythonInterface::GetQueue() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_queue", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
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return {};
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return obj->GetStringValue().str();
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}
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StructuredData::DictionarySP ScriptedThreadPythonInterface::GetStopReason() {
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Status error;
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StructuredData::DictionarySP dict =
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Dispatch<StructuredData::DictionarySP>("get_stop_reason", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
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return {};
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return dict;
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}
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StructuredData::ArraySP ScriptedThreadPythonInterface::GetStackFrames() {
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return nullptr;
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}
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StructuredData::DictionarySP ScriptedThreadPythonInterface::GetRegisterInfo() {
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Status error;
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StructuredData::DictionarySP dict =
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Dispatch<StructuredData::DictionarySP>("get_register_info", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, dict, error))
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return {};
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return dict;
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}
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llvm::Optional<std::string>
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ScriptedThreadPythonInterface::GetRegisterContext() {
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Status error;
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StructuredData::ObjectSP obj = Dispatch("get_register_context", error);
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if (!CheckStructuredDataObject(LLVM_PRETTY_FUNCTION, obj, error))
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return {};
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return obj->GetAsString()->GetValue().str();
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}
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#endif
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