<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, 12 insertions, 0 deletions

diff --git a/lldb/examples/python/operating_system.py b/lldb/examples/python/operating_system.py
index b0ce05d3624..204063298bf 100644
--- a/lldb/examples/python/operating_system.py
+++ b/lldb/examples/python/operating_system.py
@@ -23,6 +23,13 @@ class OperatingSystemPlugIn(object):
         # tracks the current target in the LLDB command interpreter which isn't the
         # correct thing to use for this plug-in.
         return self.process.target
+
+    def create_thread(self, tid, context):
+        if tid == 0x444444444:
+            thread_info = { 'tid' : 0x444444444, 'name' : 'four'  , 'queue' : 'queue4', 'state' : 'stopped', 'stop_reason' : 'none' }
+            self.threads.append(thread_info)
+            return thread_info
+        return None
         
     def get_thread_info(self):
         if not self.threads:
@@ -89,4 +96,9 @@ class OperatingSystemPlugIn(object):
             return struct.pack('21Q',11,12,13,14,15,16,17,18,19,110,111,112,113,114,115,116,117,118,119,120,121);
         elif tid == 0x333333333:
             return struct.pack('21Q',21,22,23,24,25,26,27,28,29,210,211,212,213,214,215,216,217,218,219,220,221);
+        elif tid == 0x444444444:
+            return struct.pack('21Q',31,32,33,34,35,36,37,38,39,310,311,312,313,314,315,316,317,318,319,320,321);
+        else:
+            return struct.pack('21Q',41,42,43,44,45,46,47,48,49,410,411,412,413,414,415,416,417,418,419,420,421);
+        return None