From 360cc3188db5f5b65c7fcddba0b2e38fd3483d15 Mon Sep 17 00:00:00 2001 From: Enrico Granata Date: Wed, 27 Mar 2013 22:38:11 +0000 Subject: Implementing the notion of externally-acquirable ScriptInterpreter lock With this notion, if parties outside the ScriptInterpreter itself need to acquire a lock on script APIs, they can do so by a pattern like this: { auto lock = interpeter->AcquireInterpreterLock(); // do whatever you need to do... } // lock will automatically be released here This might be useful for classes that use the Python convenience objects (e.g. PythonDictionary) to ensure they keep the underlying interpreter in a safe and controlled condition while they call through the C API functions Of course, the ScriptInterpreter still manages its internal locking correctly when necessary :-) llvm-svn: 178189 --- lldb/source/Interpreter/ScriptInterpreterPython.cpp | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'lldb/source/Interpreter/ScriptInterpreterPython.cpp') diff --git a/lldb/source/Interpreter/ScriptInterpreterPython.cpp b/lldb/source/Interpreter/ScriptInterpreterPython.cpp index 5a97107ac10..68e984c1e6b 100644 --- a/lldb/source/Interpreter/ScriptInterpreterPython.cpp +++ b/lldb/source/Interpreter/ScriptInterpreterPython.cpp @@ -135,6 +135,7 @@ ScriptInterpreterPython::Locker::Locker (ScriptInterpreterPython *py_interpreter uint16_t on_entry, uint16_t on_leave, FILE* wait_msg_handle) : + ScriptInterpreterLocker (), m_teardown_session( (on_leave & TearDownSession) == TearDownSession ), m_python_interpreter(py_interpreter), m_tmp_fh(wait_msg_handle) @@ -2806,6 +2807,15 @@ ScriptInterpreterPython::GetDocumentationForItem(const char* item, std::string& } } +std::auto_ptr +ScriptInterpreterPython::AcquireInterpreterLock () +{ + std::auto_ptr py_lock(new Locker(this, + Locker::AcquireLock | Locker::InitSession, + Locker::FreeLock | Locker::TearDownSession)); + return py_lock; +} + void ScriptInterpreterPython::InitializeInterpreter (SWIGInitCallback python_swig_init_callback) { -- cgit v1.2.3