CTest: Simplify std::chrono::duration<double> conversion to double

The ratio of ticks to seconds for this type is 1, so we can just use its
`count()` directly.  This also avoids converting through the integer
representation of `std::chrono::milliseconds`, which has a much smaller
allowed range.

Drop our `cmsysProcess_SetTimeout` wrapper as it is now very thin.

1 files changed, 2 insertions, 10 deletions

diff --git a/Source/CTest/cmCTestRunTest.cxx b/Source/CTest/cmCTestRunTest.cxx
index a075649..c76eb4e 100644
--- a/Source/CTest/cmCTestRunTest.cxx
+++ b/Source/CTest/cmCTestRunTest.cxx
@@ -265,11 +265,7 @@ bool cmCTestRunTest::EndTest(size_t completed, size_t total, bool started)
 
   passed = this->TestResult.Status == cmCTestTestHandler::COMPLETED;
   char buf[1024];
-  sprintf(buf, "%6.2f sec",
-          double(std::chrono::duration_cast<std::chrono::milliseconds>(
-                   this->TestProcess->GetTotalTime())
-                   .count()) /
-            1000.0);
+  sprintf(buf, "%6.2f sec", this->TestProcess->GetTotalTime().count());
   cmCTestLog(this->CTest, HANDLER_OUTPUT, buf << "\n");
 
   if (outputTestErrorsToConsole) {
@@ -394,11 +390,7 @@ void cmCTestRunTest::ComputeWeightedCost()
 {
   double prev = static_cast<double>(this->TestProperties->PreviousRuns);
   double avgcost = static_cast<double>(this->TestProperties->Cost);
-  double current =
-    double(std::chrono::duration_cast<std::chrono::milliseconds>(
-             this->TestResult.ExecutionTime)
-             .count()) /
-    1000.0;
+  double current = this->TestResult.ExecutionTime.count();
 
   if (this->TestResult.Status == cmCTestTestHandler::COMPLETED) {
     this->TestProperties->Cost =