[Lldb-commits] [lldb] fd18f0e - Revert "[LLDB][GUI] Expand selected thread tree item by default"

Muhammad Omair Javaid via lldb-commits lldb-commits at lists.llvm.org
Fri Jul 30 01:40:15 PDT 2021


Author: Muhammad Omair Javaid
Date: 2021-07-30T13:40:05+05:00
New Revision: fd18f0e84cca023df6cb19e88c07c0e2059f659b

URL: https://github.com/llvm/llvm-project/commit/fd18f0e84cca023df6cb19e88c07c0e2059f659b
DIFF: https://github.com/llvm/llvm-project/commit/fd18f0e84cca023df6cb19e88c07c0e2059f659b.diff

LOG: Revert "[LLDB][GUI] Expand selected thread tree item by default"

This reverts commit fed25ddc1c3de59aa1de27e95b349f86896ccb79.

There has been sporadic failures in LLDB AArch64/Arm 32 buildbots since
this commit. I am temporarily reverting it see if it fixes the issue.

Differential Revision: https://reviews.llvm.org/D100243

Added: 
    

Modified: 
    lldb/source/Core/IOHandlerCursesGUI.cpp

Removed: 
    lldb/test/API/commands/gui/expand-threads-tree/Makefile
    lldb/test/API/commands/gui/expand-threads-tree/TestGuiExpandThreadsTree.py
    lldb/test/API/commands/gui/expand-threads-tree/main.c


################################################################################
diff  --git a/lldb/source/Core/IOHandlerCursesGUI.cpp b/lldb/source/Core/IOHandlerCursesGUI.cpp
index 010f9300aa2e5..e824f702aba21 100644
--- a/lldb/source/Core/IOHandlerCursesGUI.cpp
+++ b/lldb/source/Core/IOHandlerCursesGUI.cpp
@@ -3768,13 +3768,8 @@ class TreeDelegate {
 
   virtual void TreeDelegateDrawTreeItem(TreeItem &item, Window &window) = 0;
   virtual void TreeDelegateGenerateChildren(TreeItem &item) = 0;
-  virtual void TreeDelegateUpdateSelection(TreeItem &root, int &selection_index,
-                                           TreeItem *&selected_item) {
-    return;
-  }
   virtual bool TreeDelegateItemSelected(
       TreeItem &item) = 0; // Return true if we need to update views
-  virtual bool TreeDelegateExpandRootByDefault() { return false; }
 };
 
 typedef std::shared_ptr<TreeDelegate> TreeDelegateSP;
@@ -3784,10 +3779,7 @@ class TreeItem {
   TreeItem(TreeItem *parent, TreeDelegate &delegate, bool might_have_children)
       : m_parent(parent), m_delegate(delegate), m_user_data(nullptr),
         m_identifier(0), m_row_idx(-1), m_children(),
-        m_might_have_children(might_have_children), m_is_expanded(false) {
-    if (m_parent == nullptr)
-      m_is_expanded = m_delegate.TreeDelegateExpandRootByDefault();
-  }
+        m_might_have_children(might_have_children), m_is_expanded(false) {}
 
   TreeItem &operator=(const TreeItem &rhs) {
     if (this != &rhs) {
@@ -4016,8 +4008,6 @@ class TreeWindowDelegate : public WindowDelegate {
       const int num_visible_rows = NumVisibleRows();
       m_num_rows = 0;
       m_root.CalculateRowIndexes(m_num_rows);
-      m_delegate_sp->TreeDelegateUpdateSelection(m_root, m_selected_row_idx,
-                                                 m_selected_item);
 
       // If we unexpanded while having something selected our total number of
       // rows is less than the num visible rows, then make sure we show all the
@@ -4319,7 +4309,7 @@ class ThreadsTreeDelegate : public TreeDelegate {
 public:
   ThreadsTreeDelegate(Debugger &debugger)
       : TreeDelegate(), m_thread_delegate_sp(), m_debugger(debugger),
-        m_stop_id(UINT32_MAX), m_update_selection(false) {
+        m_stop_id(UINT32_MAX) {
     FormatEntity::Parse("process ${process.id}{, name = ${process.name}}",
                         m_format);
   }
@@ -4347,7 +4337,6 @@ class ThreadsTreeDelegate : public TreeDelegate {
 
   void TreeDelegateGenerateChildren(TreeItem &item) override {
     ProcessSP process_sp = GetProcess();
-    m_update_selection = false;
     if (process_sp && process_sp->IsAlive()) {
       StateType state = process_sp->GetState();
       if (StateIsStoppedState(state, true)) {
@@ -4356,7 +4345,6 @@ class ThreadsTreeDelegate : public TreeDelegate {
           return; // Children are already up to date
 
         m_stop_id = stop_id;
-        m_update_selection = true;
 
         if (!m_thread_delegate_sp) {
           // Always expand the thread item the first time we show it
@@ -4368,15 +4356,11 @@ class ThreadsTreeDelegate : public TreeDelegate {
         TreeItem t(&item, *m_thread_delegate_sp, false);
         ThreadList &threads = process_sp->GetThreadList();
         std::lock_guard<std::recursive_mutex> guard(threads.GetMutex());
-        ThreadSP selected_thread = threads.GetSelectedThread();
         size_t num_threads = threads.GetSize();
         item.Resize(num_threads, t);
         for (size_t i = 0; i < num_threads; ++i) {
-          ThreadSP thread = threads.GetThreadAtIndex(i);
-          item[i].SetIdentifier(thread->GetID());
+          item[i].SetIdentifier(threads.GetThreadAtIndex(i)->GetID());
           item[i].SetMightHaveChildren(true);
-          if (selected_thread->GetID() == thread->GetID())
-            item[i].Expand();
         }
         return;
       }
@@ -4384,42 +4368,12 @@ class ThreadsTreeDelegate : public TreeDelegate {
     item.ClearChildren();
   }
 
-  void TreeDelegateUpdateSelection(TreeItem &root, int &selection_index,
-                                   TreeItem *&selected_item) override {
-    if (!m_update_selection)
-      return;
-
-    ProcessSP process_sp = GetProcess();
-    if (!(process_sp && process_sp->IsAlive()))
-      return;
-
-    StateType state = process_sp->GetState();
-    if (!StateIsStoppedState(state, true))
-      return;
-
-    ThreadList &threads = process_sp->GetThreadList();
-    std::lock_guard<std::recursive_mutex> guard(threads.GetMutex());
-    ThreadSP selected_thread = threads.GetSelectedThread();
-    size_t num_threads = threads.GetSize();
-    for (size_t i = 0; i < num_threads; ++i) {
-      ThreadSP thread = threads.GetThreadAtIndex(i);
-      if (selected_thread->GetID() == thread->GetID()) {
-        selected_item = &root[i][thread->GetSelectedFrameIndex()];
-        selection_index = selected_item->GetRowIndex();
-        return;
-      }
-    }
-  }
-
   bool TreeDelegateItemSelected(TreeItem &item) override { return false; }
 
-  bool TreeDelegateExpandRootByDefault() override { return true; }
-
 protected:
   std::shared_ptr<ThreadTreeDelegate> m_thread_delegate_sp;
   Debugger &m_debugger;
   uint32_t m_stop_id;
-  bool m_update_selection;
   FormatEntity::Entry m_format;
 };
 

diff  --git a/lldb/test/API/commands/gui/expand-threads-tree/Makefile b/lldb/test/API/commands/gui/expand-threads-tree/Makefile
deleted file mode 100644
index 0c11fbdd8669c..0000000000000
--- a/lldb/test/API/commands/gui/expand-threads-tree/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-C_SOURCES := main.c
-ENABLE_THREADS := YES
-include Makefile.rules

diff  --git a/lldb/test/API/commands/gui/expand-threads-tree/TestGuiExpandThreadsTree.py b/lldb/test/API/commands/gui/expand-threads-tree/TestGuiExpandThreadsTree.py
deleted file mode 100644
index 0e095661d3ec8..0000000000000
--- a/lldb/test/API/commands/gui/expand-threads-tree/TestGuiExpandThreadsTree.py
+++ /dev/null
@@ -1,55 +0,0 @@
-"""
-Test the 'gui' default thread tree expansion.
-The root process tree item and the tree item corresponding to the selected
-thread should be expanded by default.
-"""
-
-import lldb
-from lldbsuite.test.decorators import *
-from lldbsuite.test.lldbtest import *
-from lldbsuite.test.lldbpexpect import PExpectTest
-
-class TestGuiExpandThreadsTree(PExpectTest):
-
-    mydir = TestBase.compute_mydir(__file__)
-
-    # PExpect uses many timeouts internally and doesn't play well
-    # under ASAN on a loaded machine..
-    @skipIfAsan
-    @skipIfCursesSupportMissing
-    def test_gui(self):
-        self.build()
-
-        self.launch(executable=self.getBuildArtifact("a.out"), dimensions=(100,500))
-        self.expect("breakpoint set -r thread_start_routine", substrs=["Breakpoint 1", "address ="])
-        self.expect("run", substrs=["stop reason ="])
-
-        escape_key = chr(27).encode()
-
-        # Start the GUI and close the welcome window.
-        self.child.sendline("gui")
-        self.child.send(escape_key)
-        self.child.expect_exact("Threads")
-
-        # The thread running thread_start_routine should be expanded.
-        self.child.expect_exact("frame #0: thread_start_routine")
-
-        # Exit GUI.
-        self.child.send(escape_key)
-        self.expect_prompt()
-
-        # Select the main thread.
-        self.child.sendline("thread select 1")
-
-        # Start the GUI.
-        self.child.sendline("gui")
-        self.child.expect_exact("Threads")
-
-        # The main thread should be expanded.
-        self.child.expect("frame #\d+: main")
-
-        # Quit the GUI
-        self.child.send(escape_key)
-
-        self.expect_prompt()
-        self.quit()

diff  --git a/lldb/test/API/commands/gui/expand-threads-tree/main.c b/lldb/test/API/commands/gui/expand-threads-tree/main.c
deleted file mode 100644
index 32e6d17c799a6..0000000000000
--- a/lldb/test/API/commands/gui/expand-threads-tree/main.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include <pthread.h>
-
-void *thread_start_routine(void *arg) { return NULL; }
-
-int main() {
-  pthread_t thread;
-  pthread_create(&thread, NULL, thread_start_routine, NULL);
-  pthread_join(thread, NULL);
-  return 0;
-}


        


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