CTest: Add options to control test process affinity to CPUs

In commit v2.8.0~170 (ENH: Added ctest test options PROCESSORS and
RUN_SERIAL, 2009-09-07) CTest learned to track the number of processors
allocated to running tests in order to balance it against the desired
level of parallelism.  Extend this idea by introducing a new
`PROCESSOR_AFFINITY` test property to ask that CTest run a test
with the CPU affinity mask set.  This will allow a set of tests
that are running concurrently to use disjoint CPU resources.

1 files changed, 2 insertions, 1 deletions

diff --git a/Source/CTest/cmCTestRunTest.h b/Source/CTest/cmCTestRunTest.h
index 4d57357..073af11 100644
--- a/Source/CTest/cmCTestRunTest.h
+++ b/Source/CTest/cmCTestRunTest.h
@@ -83,7 +83,8 @@ private:
   void DartProcessing();
   void ExeNotFound(std::string exe);
   bool ForkProcess(cmDuration testTimeOut, bool explicitTimeout,
-                   std::vector<std::string>* environment);
+                   std::vector<std::string>* environment,
+                   std::vector<size_t>* affinity);
   void WriteLogOutputTop(size_t completed, size_t total);
   // Run post processing of the process output for MemCheck
   void MemCheckPostProcess();