From 0432b921aecfee3cf400a1f1ad8e65a1f7bc5a01 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 2 Nov 2023 13:56:01 -0400
Subject: cmCTestMultiProcessHandler: Inline removal of pending test as it
 starts

Avoid searching the entire list of ordered pending tests to remove one
when we already know where it is.
---
 Source/CTest/cmCTestMultiProcessHandler.cxx | 17 +++++++----------
 Source/CTest/cmCTestMultiProcessHandler.h   |  1 -
 2 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/Source/CTest/cmCTestMultiProcessHandler.cxx b/Source/CTest/cmCTestMultiProcessHandler.cxx
index d910367..be210f4 100644
--- a/Source/CTest/cmCTestMultiProcessHandler.cxx
+++ b/Source/CTest/cmCTestMultiProcessHandler.cxx
@@ -438,13 +438,6 @@ void cmCTestMultiProcessHandler::UnlockResources(int index)
   this->RunningCount -= this->GetProcessorsUsed(index);
 }
 
-void cmCTestMultiProcessHandler::ErasePendingTest(int test)
-{
-  this->PendingTests.erase(test);
-  this->OrderedTests.erase(
-    std::find(this->OrderedTests.begin(), this->OrderedTests.end(), test));
-}
-
 inline size_t cmCTestMultiProcessHandler::GetProcessorsUsed(int test)
 {
   size_t processors = static_cast<int>(this->Properties[test]->Processors);
@@ -537,7 +530,8 @@ void cmCTestMultiProcessHandler::StartNextTests()
          ti != this->OrderedTests.end()) {
     // Increment the test iterator now because the current list
     // entry may be deleted below.
-    int test = *ti++;
+    auto cti = ti++;
+    int test = *cti;
 
     // We can only start a RUN_SERIAL test if no other tests are also
     // running.
@@ -592,7 +586,8 @@ void cmCTestMultiProcessHandler::StartNextTests()
 
     // The test is ready to run.
     numToStart -= processors;
-    this->ErasePendingTest(test);
+    this->OrderedTests.erase(cti);
+    this->PendingTests.erase(test);
     this->StartTest(test);
   }
 
@@ -1411,7 +1406,9 @@ void cmCTestMultiProcessHandler::CheckResume()
 
 void cmCTestMultiProcessHandler::RemoveTest(int index)
 {
-  this->ErasePendingTest(index);
+  this->OrderedTests.erase(
+    std::find(this->OrderedTests.begin(), this->OrderedTests.end(), index));
+  this->PendingTests.erase(index);
   this->Properties.erase(index);
   this->Completed++;
 }
diff --git a/Source/CTest/cmCTestMultiProcessHandler.h b/Source/CTest/cmCTestMultiProcessHandler.h
index ffbe16f..1be04aa 100644
--- a/Source/CTest/cmCTestMultiProcessHandler.h
+++ b/Source/CTest/cmCTestMultiProcessHandler.h
@@ -127,7 +127,6 @@ protected:
 
   // Removes the checkpoint file
   void MarkFinished();
-  void ErasePendingTest(int index);
   void FinishTestProcess(std::unique_ptr<cmCTestRunTest> runner, bool started);
 
   void StartNextTestsOnIdle();
-- 
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