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492 lines
14 KiB
492 lines
14 KiB
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmCTestMultiProcessHandler.h"
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#include "cmProcess.h"
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#include "cmStandardIncludes.h"
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#include "cmCTest.h"
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#include "cmSystemTools.h"
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#include <stdlib.h>
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#include <stack>
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cmCTestMultiProcessHandler::cmCTestMultiProcessHandler()
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{
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this->ParallelLevel = 1;
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this->Completed = 0;
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this->RunningCount = 0;
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}
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cmCTestMultiProcessHandler::~cmCTestMultiProcessHandler()
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{
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}
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// Set the tests
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void
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cmCTestMultiProcessHandler::SetTests(TestMap& tests,
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PropertiesMap& properties)
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{
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this->Tests = tests;
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this->Properties = properties;
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this->Total = this->Tests.size();
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// set test run map to false for all
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for(TestMap::iterator i = this->Tests.begin();
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i != this->Tests.end(); ++i)
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{
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this->TestRunningMap[i->first] = false;
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this->TestFinishMap[i->first] = false;
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}
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this->ReadCostData();
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this->CreateTestCostList();
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}
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// Set the max number of tests that can be run at the same time.
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void cmCTestMultiProcessHandler::SetParallelLevel(size_t level)
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{
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this->ParallelLevel = level < 1 ? 1 : level;
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::RunTests()
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{
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this->CheckResume();
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if(!this->CheckCycles())
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{
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return;
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}
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this->TestHandler->SetMaxIndex(this->FindMaxIndex());
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this->StartNextTests();
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while(this->Tests.size() != 0)
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{
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this->CheckOutput();
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this->StartNextTests();
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}
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// let all running tests finish
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while(this->CheckOutput())
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{
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}
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this->MarkFinished();
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::StartTestProcess(int test)
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{
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cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, "test " << test << "\n");
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this->TestRunningMap[test] = true; // mark the test as running
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// now remove the test itself
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this->EraseTest(test);
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cmCTestRunTest* testRun = new cmCTestRunTest(this->TestHandler);
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testRun->SetIndex(test);
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testRun->SetTestProperties(this->Properties[test]);
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std::string current_dir = cmSystemTools::GetCurrentWorkingDirectory();
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cmSystemTools::ChangeDirectory(this->Properties[test]->Directory.c_str());
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if(testRun->StartTest(this->Total))
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{
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this->RunningTests.insert(testRun);
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}
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else
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{
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this->Completed++;
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this->TestFinishMap[test] = true;
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this->TestRunningMap[test] = false;
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this->RunningCount -= GetProcessorsUsed(test);
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testRun->EndTest(this->Completed, this->Total, false);
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this->Failed->push_back(this->Properties[test]->Name);
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}
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cmSystemTools::ChangeDirectory(current_dir.c_str());
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::EraseTest(int test)
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{
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this->Tests.erase(test);
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for(TestCostMap::iterator i = this->TestCosts.begin();
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i != this->TestCosts.end(); ++i)
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{
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if(i->second.find(test) != i->second.end())
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{
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i->second.erase(test);
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return;
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}
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}
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}
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//---------------------------------------------------------
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inline size_t cmCTestMultiProcessHandler::GetProcessorsUsed(int test)
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{
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size_t processors =
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static_cast<int>(this->Properties[test]->Processors);
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//If this is set to run serially, it must run alone.
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//Also, if processors setting is set higher than the -j
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//setting, we default to using all of the process slots.
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if(this->Properties[test]->RunSerial
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|| processors > this->ParallelLevel)
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{
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processors = this->ParallelLevel;
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}
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return processors;
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}
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//---------------------------------------------------------
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bool cmCTestMultiProcessHandler::StartTest(int test)
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{
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// copy the depend tests locally because when
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// a test is finished it will be removed from the depend list
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// and we don't want to be iterating a list while removing from it
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TestSet depends = this->Tests[test];
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size_t totalDepends = depends.size();
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if(totalDepends)
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{
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for(TestSet::const_iterator i = depends.begin();
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i != depends.end(); ++i)
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{
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// if the test is not already running then start it
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if(!this->TestRunningMap[*i])
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{
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// this test might be finished, but since
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// this is a copy of the depend map we might
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// still have it
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if(!this->TestFinishMap[*i])
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{
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// only start one test in this function
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return this->StartTest(*i);
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}
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else
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{
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// the depend has been and finished
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totalDepends--;
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}
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}
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}
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}
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// if there are no depends left then run this test
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if(totalDepends == 0)
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{
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this->StartTestProcess(test);
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return true;
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}
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// This test was not able to start because it is waiting
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// on depends to run
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return false;
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::StartNextTests()
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{
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size_t numToStart = this->ParallelLevel - this->RunningCount;
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if(numToStart == 0)
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{
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return;
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}
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for(TestCostMap::reverse_iterator i = this->TestCosts.rbegin();
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i != this->TestCosts.rend(); ++i)
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{
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TestSet tests = i->second; //copy the test set
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for(TestSet::iterator test = tests.begin();
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test != tests.end(); ++test)
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{
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//in case this test has already been started due to dependency
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if(this->TestRunningMap[*test] || this->TestFinishMap[*test])
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{
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continue;
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}
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size_t processors = GetProcessorsUsed(*test);
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if(processors > numToStart)
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{
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return;
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}
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if(this->StartTest(*test))
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{
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numToStart -= processors;
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this->RunningCount += processors;
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}
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else
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{
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cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, std::endl
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<< "Test did not start waiting on depends to finish: "
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<< *test << "\n");
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}
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if(numToStart == 0)
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{
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return;
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}
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}
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}
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}
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//---------------------------------------------------------
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bool cmCTestMultiProcessHandler::CheckOutput()
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{
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// no more output we are done
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if(this->RunningTests.size() == 0)
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{
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return false;
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}
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std::vector<cmCTestRunTest*> finished;
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std::string out, err;
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for(std::set<cmCTestRunTest*>::const_iterator i = this->RunningTests.begin();
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i != this->RunningTests.end(); ++i)
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{
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cmCTestRunTest* p = *i;
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if(!p->CheckOutput())
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{
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finished.push_back(p);
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}
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}
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for( std::vector<cmCTestRunTest*>::iterator i = finished.begin();
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i != finished.end(); ++i)
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{
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this->Completed++;
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cmCTestRunTest* p = *i;
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int test = p->GetIndex();
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if(p->EndTest(this->Completed, this->Total, true))
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{
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this->Passed->push_back(p->GetTestProperties()->Name);
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}
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else
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{
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this->Failed->push_back(p->GetTestProperties()->Name);
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}
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for(TestMap::iterator j = this->Tests.begin();
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j != this->Tests.end(); ++j)
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{
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j->second.erase(test);
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}
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this->TestFinishMap[test] = true;
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this->TestRunningMap[test] = false;
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this->RunningTests.erase(p);
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this->WriteCheckpoint(test);
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this->WriteCostData(test, static_cast<float>(
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p->GetTestResults().ExecutionTime));
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this->RunningCount -= GetProcessorsUsed(test);
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delete p;
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}
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return true;
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::ReadCostData()
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{
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std::string fname = this->CTest->GetBinaryDir()
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+ "/Testing/Temporary/CTestCostData.txt";
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if(cmSystemTools::FileExists(fname.c_str(), true)
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&& this->ParallelLevel > 1)
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{
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std::ifstream fin;
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fin.open(fname.c_str());
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std::string line;
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while(std::getline(fin, line))
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{
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std::vector<cmsys::String> parts =
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cmSystemTools::SplitString(line.c_str(), ' ');
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int index = atoi(parts[0].c_str());
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float cost = static_cast<float>(atof(parts[1].c_str()));
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if(this->Properties[index] && this->Properties[index]->Cost == 0)
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{
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this->Properties[index]->Cost = cost;
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}
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}
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fin.close();
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}
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cmSystemTools::RemoveFile(fname.c_str());
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::CreateTestCostList()
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{
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for(TestMap::iterator i = this->Tests.begin();
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i != this->Tests.end(); ++i)
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{
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this->TestCosts[this->Properties[i->first]->Cost].insert(i->first);
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}
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::WriteCostData(int index, float cost)
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{
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std::string fname = this->CTest->GetBinaryDir()
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+ "/Testing/Temporary/CTestCostData.txt";
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std::fstream fout;
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fout.open(fname.c_str(), std::ios::app);
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fout << index << " " << cost << "\n";
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fout.close();
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::WriteCheckpoint(int index)
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{
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std::string fname = this->CTest->GetBinaryDir()
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+ "/Testing/Temporary/CTestCheckpoint.txt";
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std::fstream fout;
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fout.open(fname.c_str(), std::ios::app);
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fout << index << "\n";
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fout.close();
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::MarkFinished()
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{
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std::string fname = this->CTest->GetBinaryDir()
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+ "/Testing/Temporary/CTestCheckpoint.txt";
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cmSystemTools::RemoveFile(fname.c_str());
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}
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//---------------------------------------------------------
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//For ShowOnly mode
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void cmCTestMultiProcessHandler::PrintTestList()
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{
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this->TestHandler->SetMaxIndex(this->FindMaxIndex());
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int count = 0;
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for (PropertiesMap::iterator it = this->Properties.begin();
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it != this->Properties.end(); ++it)
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{
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count++;
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cmCTestTestHandler::cmCTestTestProperties& p = *it->second;
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//push working dir
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std::string current_dir = cmSystemTools::GetCurrentWorkingDirectory();
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cmSystemTools::ChangeDirectory(p.Directory.c_str());
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cmCTestRunTest testRun(this->TestHandler);
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testRun.SetIndex(p.Index);
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testRun.SetTestProperties(&p);
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testRun.ComputeArguments(); //logs the command in verbose mode
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if (this->TestHandler->MemCheck)
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{
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cmCTestLog(this->CTest, HANDLER_OUTPUT, " Memory Check");
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}
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else
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{
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cmCTestLog(this->CTest, HANDLER_OUTPUT, " Test");
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}
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cmOStringStream indexStr;
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indexStr << " #" << p.Index << ":";
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cmCTestLog(this->CTest, HANDLER_OUTPUT,
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std::setw(3 + getNumWidth(this->TestHandler->GetMaxIndex()))
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<< indexStr.str().c_str());
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cmCTestLog(this->CTest, HANDLER_OUTPUT, " ");
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cmCTestLog(this->CTest, HANDLER_OUTPUT, p.Name.c_str() << std::endl);
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//pop working dir
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cmSystemTools::ChangeDirectory(current_dir.c_str());
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}
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cmCTestLog(this->CTest, HANDLER_OUTPUT, std::endl << "Total Tests: "
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<< this->Total << std::endl);
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::CheckResume()
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{
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std::string fname = this->CTest->GetBinaryDir()
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+ "/Testing/Temporary/CTestCheckpoint.txt";
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if(this->CTest->GetFailover())
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{
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if(cmSystemTools::FileExists(fname.c_str(), true))
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{
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*this->TestHandler->LogFile << "Resuming previously interrupted test set"
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<< std::endl
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<< "----------------------------------------------------------"
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<< std::endl;
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std::ifstream fin;
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fin.open(fname.c_str());
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std::string line;
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while(std::getline(fin, line))
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{
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int index = atoi(line.c_str());
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this->RemoveTest(index);
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}
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fin.close();
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}
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}
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else
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{
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if(cmSystemTools::FileExists(fname.c_str(), true))
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{
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cmSystemTools::RemoveFile(fname.c_str());
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}
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}
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}
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//---------------------------------------------------------
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void cmCTestMultiProcessHandler::RemoveTest(int index)
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{
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this->EraseTest(index);
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this->Properties.erase(index);
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this->TestRunningMap[index] = false;
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this->TestFinishMap[index] = true;
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this->Completed++;
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}
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//---------------------------------------------------------
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int cmCTestMultiProcessHandler::FindMaxIndex()
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{
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int max = 0;
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cmCTestMultiProcessHandler::TestMap::iterator i = this->Tests.begin();
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for(; i != this->Tests.end(); ++i)
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{
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if(i->first > max)
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{
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max = i->first;
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}
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}
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return max;
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}
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//Returns true if no cycles exist in the dependency graph
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bool cmCTestMultiProcessHandler::CheckCycles()
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{
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cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
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"Checking test dependency graph..." << std::endl);
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for(TestMap::iterator it = this->Tests.begin();
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it != this->Tests.end(); ++it)
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{
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//DFS from each element to itself
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std::stack<int> s;
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std::vector<int> visited;
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s.push(it->first);
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visited.push_back(it->first);
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while(!s.empty())
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{
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int test = s.top();
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s.pop();
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for(TestSet::iterator d = this->Tests[test].begin();
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d != this->Tests[test].end(); ++d)
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{
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s.push(*d);
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for(std::vector<int>::iterator v = visited.begin();
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v != visited.end(); ++v)
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{
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if(*v == *d)
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{
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//cycle exists
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cmCTestLog(this->CTest, ERROR_MESSAGE, "Error: a cycle exists in "
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"the test dependency graph for the test \""
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<< this->Properties[*d]->Name << "\"." << std::endl
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<< "Please fix the cycle and run ctest again." << std::endl);
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return false;
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}
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}
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visited.push_back(*d);
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}
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visited.pop_back();
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}
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}
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return true;
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}
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