Add a new SBThread::GetExtendedBacktraceOriginatingIndexID() method

(and same thing to Thread base class) which can be used when looking
at an ExtendedBacktrace thread; it will try to find the IndexID() of
the original thread that was executing this backtrace when it was
recorded.  If lldb can't find a record of that thread, it will return
the same value as IndexID() for the ExtendedBacktrace thread.

llvm-svn: 194912

1 files changed, 13 insertions, 1 deletions

diff --git a/lldb/scripts/Python/interface/SBThread.i b/lldb/scripts/Python/interface/SBThread.i
index 145016aecf0..92ea929c6b9 100644
--- a/lldb/scripts/Python/interface/SBThread.i
+++ b/lldb/scripts/Python/interface/SBThread.i
@@ -239,7 +239,7 @@ public:
 
     bool
     operator != (const lldb::SBThread &rhs) const;
-             
+
     %feature("autodoc","
     Given an argument of str to specify the type of thread-origin extended
     backtrace to retrieve, query whether the origin of this thread is 
@@ -253,6 +253,18 @@ public:
     lldb::SBThread
     GetExtendedBacktraceThread (const char *type);
 
+    %feature("autodoc","
+    Takes no arguments, returns a uint32_t.
+    If this SBThread is an ExtendedBacktrace thread, get the IndexID of the
+    original thread that this ExtendedBacktrace thread represents, if 
+    available.  The thread that was running this backtrace in the past may
+    not have been registered with lldb's thread index (if it was created,
+    did its work, and was destroyed without lldb ever stopping execution).
+    In that case, this ExtendedBacktrace thread's IndexID will be returned.
+    ") GetExtendedBacktraceOriginatingIndexID;
+    uint32_t
+    GetExtendedBacktraceOriginatingIndexID();
+
     %pythoncode %{
         class frames_access(object):
             '''A helper object that will lazily hand out frames for a thread when supplied an index.'''