[NativeProcessLinux] Remove double thread state accounting

Summary:
Now that all thread events are processed synchronously, there is no need to have separate records
of whether a thread is running. This changes the (ever-dwindling) remains of the TSC to use
NativeThreadLinux as the authoritative source of the state of threads. The rest of the
ThreadContext we need has been moved to a member of NTL.

Test Plan: ninja check-lldb continues to pass

Reviewers: chaoren, ovyalov

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D9562

llvm-svn: 236983

1 files changed, 14 insertions, 0 deletions

diff --git a/lldb/source/Plugins/Process/Linux/NativeThreadLinux.h b/lldb/source/Plugins/Process/Linux/NativeThreadLinux.h
index c24faf8b811..d78e99c166c 100644
--- a/lldb/source/Plugins/Process/Linux/NativeThreadLinux.h
+++ b/lldb/source/Plugins/Process/Linux/NativeThreadLinux.h
@@ -95,6 +95,19 @@ namespace process_linux {
         void
         SetExited ();
 
+        Error
+        RequestStop ();
+
+        typedef std::function<Error (lldb::tid_t tid, bool supress_signal)> ResumeThreadFunction;
+        struct ThreadContext
+        {
+            bool stop_requested = false;
+            ResumeThreadFunction request_resume_function;
+        };
+
+        ThreadContext &
+        GetThreadContext() { return m_thread_context; }
+
         // ---------------------------------------------------------------------
         // Private interface
         // ---------------------------------------------------------------------
@@ -110,6 +123,7 @@ namespace process_linux {
         std::string m_stop_description;
         using WatchpointIndexMap = std::map<lldb::addr_t, uint32_t>;
         WatchpointIndexMap m_watchpoint_index_map;
+        ThreadContext m_thread_context;
     };
 
 } // namespace process_linux