<rdar://problem/13010007>

Added the ability for OS plug-ins to lazily populate the thread this. The python OS plug-in classes can now implement the following method:

class OperatingSystemPlugin:
  def create_thread(self, tid, context):
    # Return a dictionary for a new thread to create it on demand

This will add a new thread to the thread list if it doesn't already exist. The example code in lldb/examples/python/operating_system.py has been updated to show how this call us used.

Cleaned up the code in PythonDataObjects.cpp/h:
- renamed all classes that started with PythonData* to be Python*. 
- renamed PythonArray to PythonList. Cleaned up the code to use inheritance where
- Centralized the code that does ref counting in the PythonObject class to a single function.
- Made the "bool PythonObject::Reset(PyObject *)" function be virtual so each subclass can correctly check to ensure a PyObject is of the right type before adopting the object.
- Cleaned up all APIs and added new constructors for the Python* classes to they can all construct form:
	- PyObject *
	- const PythonObject &
	- const lldb::ScriptInterpreterObjectSP &

Cleaned up code in ScriptInterpreterPython:
- Made calling python functions safer by templatizing the production of value formats. Python specifies the value formats based on built in C types (long, long long, etc), and code often uses typedefs for uint32_t, uint64_t, etc when passing arguments down to python. We will now always produce correct value formats as the templatized code will "do the right thing" all the time.
- Fixed issues with the ScriptInterpreterPython::Locker where entering the session and leaving the session had a bunch of issues that could cause the "lldb" module globals lldb.debugger, lldb.target, lldb.process, lldb.thread, and lldb.frame to not be initialized.

llvm-svn: 172873

1 files changed, 11 insertions, 0 deletions

diff --git a/lldb/source/Target/Process.cpp b/lldb/source/Target/Process.cpp
index 425274eef1b..97339235746 100644
--- a/lldb/source/Target/Process.cpp
+++ b/lldb/source/Target/Process.cpp
@@ -1504,6 +1504,17 @@ Process::UpdateThreadListIfNeeded ()
     }
 }
 
+ThreadSP
+Process::CreateOSPluginThread (lldb::tid_t tid, lldb::addr_t context)
+{
+    OperatingSystem *os = GetOperatingSystem ();
+    if (os)
+        return os->CreateThread(tid, context);
+    return ThreadSP();
+}
+
+
+
 // This is obsoleted. Staged removal for Xcode.
 uint32_t
 Process::GetNextThreadIndexID ()