Merge branch 'cpp-qcc-compile' of https://github.com/mbaluda/codeql-coding-standards into cpp-qcc-compile

Author: mbaluda

scripts/matrix_testing/CreateMatrixTestReport.ps1

@@ -299,6 +299,11 @@ $jobRows = $queriesToCheck | ForEach-Object -ThrottleLimit $NumThreads -Parallel
 
     foreach($testDirectory in $testDirs){
 
+        Write-Host "Acquiring lock for $testDirectory"
+        $Mutex = New-Object -TypeName System.Threading.Mutex -ArgumentList $false, ("__Matrix_" + $testDirectory.Replace([IO.Path]::DirectorySeparatorChar,"_"));
+        $Mutex.WaitOne() | Out-Null;
+        Write-Host "Locked $testDirectory"        
+
         # for the report 
         $row = @{
             "SUITE"             = $CurrentSuiteName;
@@ -412,6 +417,8 @@ $jobRows = $queriesToCheck | ForEach-Object -ThrottleLimit $NumThreads -Parallel
             # output current row state 
             $row 
 
+            # release any held mutexes            
+            $Mutex.ReleaseMutex();
 
             ###########################################################
             ###########################################################
@@ -423,6 +430,8 @@ $jobRows = $queriesToCheck | ForEach-Object -ThrottleLimit $NumThreads -Parallel
         }
     }
     # go to next row 
+
+   
 }
 
 # combine the outputs