CMake/Source/CTest/cmCTestMultiProcessHandler.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmCTestMultiProcessHandler.h"
#include "cmProcess.h"
#include "cmStandardIncludes.h"
#include "cmCTest.h"
cmCTestMultiProcessHandler::cmCTestMultiProcessHandler()
{
this->ParallelLevel = 1;
this->ProcessId = 0;
}
// Set the tests
void
cmCTestMultiProcessHandler::SetTests(TestMap& tests,
std::map<int,cmStdString>& testNames)
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{
// set test run map to false for all
for(TestMap::iterator i = this->Tests.begin();
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i != this->Tests.end(); ++i)
{
this->TestRunningMap[i->first] = false;
this->TestFinishMap[i->first] = false;
}
this->Tests = tests;
this->TestNames = testNames;
}
// Set the max number of tests that can be run at the same time.
void cmCTestMultiProcessHandler::SetParallelLevel(size_t l)
{
this->ParallelLevel = l;
}
void cmCTestMultiProcessHandler::RunTests()
{
this->StartNextTests();
while(this->Tests.size() != 0)
{
this->CheckOutput();
this->StartNextTests();
}
// let all running tests finish
while(this->CheckOutput())
{
}
for(std::map<int, cmStdString>::iterator i =
this->TestOutput.begin();
i != this->TestOutput.end(); ++i)
{
cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
i->second << std::endl);
}
}
void cmCTestMultiProcessHandler::StartTestProcess(int test)
{
cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
" test " << test << "\n");
this->TestRunningMap[test] = true; // mark the test as running
// now remove the test itself
this->Tests.erase(test);
// now run the test
cmProcess* newp = new cmProcess;
newp->SetId(this->ProcessId);
newp->SetId(test);
newp->SetCommand(this->CTestCommand.c_str());
std::vector<std::string> args;
cmOStringStream width;
if(this->CTest->GetMaxTestNameWidth())
{
args.push_back("-W");
width << this->CTest->GetMaxTestNameWidth();
args.push_back(width.str().c_str());
}
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args.push_back("-I");
cmOStringStream strm;
strm << test << "," << test;
args.push_back(strm.str());
args.push_back("--parallel-cache");
args.push_back(this->CTestCacheFile.c_str());
args.push_back("--internal-ctest-parallel");
cmOStringStream strm2;
strm2 << test;
args.push_back(strm2.str());
if(this->CTest->GetExtraVerbose())
{
args.push_back("-VV");
}
newp->SetCommandArguments(args);
if(!newp->StartProcess())
{
cmCTestLog(this->CTest, ERROR_MESSAGE,
"Error starting " << newp->GetCommand() << "\n");
this->EndTest(newp);
}
else
{
this->RunningTests.insert(newp);
}
cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
"ctest -I " << test << "\n");
this->ProcessId++;
}
bool cmCTestMultiProcessHandler::StartTest(int test)
{
// copy the depend tests locally because when
// a test is finished it will be removed from the depend list
// and we don't want to be iterating a list while removing from it
TestSet depends = this->Tests[test];
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size_t totalDepends = depends.size();
if(totalDepends)
{
for(TestSet::const_iterator i = depends.begin();
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i != depends.end(); ++i)
{
// if the test is not already running then start it
if(!this->TestRunningMap[*i])
{
// this test might be finished, but since
// this is a copy of the depend map we might
// still have it
if(!this->TestFinishMap[*i])
{
// only start one test in this function
return this->StartTest(*i);
}
else
{
// the depend has been and finished
totalDepends--;
}
}
}
}
// if there are no depends left then run this test
if(totalDepends == 0)
{
// Start this test it has no depends
this->StartTestProcess(test);
return true;
}
// This test was not able to start because it is waiting
// on depends to run
return false;
}
void cmCTestMultiProcessHandler::StartNextTests()
{
cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, std::endl
<< "Number of running tests : " << this->RunningTests.size()
<< "\n");
size_t numToStart = this->ParallelLevel - this->RunningTests.size();
if(numToStart == 0)
{
return;
}
TestMap tests = this->Tests;
for(TestMap::iterator i = tests.begin();
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i != tests.end(); ++i)
{
// start test should start only one test
if(this->StartTest(i->first))
{
numToStart--;
}
else
{
cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT, std::endl
<< "Test did not start waiting on depends to finish: "
<< i->first << "\n");
}
if(numToStart == 0 )
{
return;
}
}
}
bool cmCTestMultiProcessHandler::CheckOutput()
{
// no more output we are done
if(this->RunningTests.size() == 0)
{
return false;
}
std::vector<cmProcess*> finished;
std::string out, err;
for(std::set<cmProcess*>::const_iterator i = this->RunningTests.begin();
i != this->RunningTests.end(); ++i)
{
cmProcess* p = *i;
int pipe = p->CheckOutput(.1, out, err);
if(pipe == cmsysProcess_Pipe_STDOUT)
{
cmCTestLog(this->CTest, HANDLER_OUTPUT,
p->GetId() << ": " << out << std::endl);
this->TestOutput[ p->GetId() ] += out;
this->TestOutput[ p->GetId() ] += "\n";
}
else if(pipe == cmsysProcess_Pipe_STDERR)
{
cmCTestLog(this->CTest, HANDLER_OUTPUT,
p->GetId() << ": " << err << std::endl);
this->TestOutput[ p->GetId() ] += err;
this->TestOutput[ p->GetId() ] += "\n";
}
if(!p->IsRunning())
{
finished.push_back(p);
}
}
for( std::vector<cmProcess*>::iterator i = finished.begin();
i != finished.end(); ++i)
{
cmProcess* p = *i;
this->EndTest(p);
}
return true;
}
void cmCTestMultiProcessHandler::EndTest(cmProcess* p)
{
int test = p->GetId();
int exitVal = p->GetExitValue();
cmCTestTestHandler::cmCTestTestResult cres;
cres.Properties = 0;
cres.ExecutionTime = 0;// ???
cres.ReturnValue = exitVal;
cres.Status = cmCTestTestHandler::COMPLETED;
cres.TestCount = test;
cres.Name = this->TestNames[test];
cres.Path = "";
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if(exitVal)
{
cres.Status = cmCTestTestHandler::FAILED;
this->Failed->push_back(this->TestNames[test]);
}
else
{
this->Passed->push_back(this->TestNames[test]);
}
this->TestResults->push_back(cres);
// remove test from depend of all other tests
for(TestMap::iterator i = this->Tests.begin();
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i!= this->Tests.end(); ++i)
{
i->second.erase(test);
}
this->TestFinishMap[test] = true;
this->TestRunningMap[test] = false;
this->RunningTests.erase(p);
delete p;
cmCTestLog(this->CTest, HANDLER_VERBOSE_OUTPUT,
"finish test " << test << "\n");
}
void cmCTestMultiProcessHandler::PrintTests()
{
#undef cout
for( TestMap::iterator i = this->Tests.begin();
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i!= this->Tests.end(); ++i)
{
std::cout << "Test " << i->first << " (";
for(TestSet::iterator j = i->second.begin();
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j != i->second.end(); ++j)
{
std::cout << *j << " ";
}
std::cout << ")\n";
}
}
#if 0
int main()
{
cmCTestMultiProcessHandler h;
h.SetParallelLevel(4);
std::map<int, std::set<int> > tests;
std::set<int> depends;
for(int i =1; i < 92; i++)
{
tests[i] = depends;
}
depends.clear();
depends.insert(45); subprject
tests[46] = depends; subproject-stage2
depends.clear();
depends.insert(55); simpleinstall simpleinstall-s2
tests[56] = depends;
depends.clear();
depends.insert(70); wrapping
tests[71] = depends; qtwrapping
depends.clear();
depends.insert(71); qtwrapping
tests[72] = depends; testdriver1
depends.clear();
depends.insert(72) testdriver1
tests[73] = depends; testdriver2
depends.clear();
depends.insert(73); testdriver2
tests[74] = depends; testdriver3
depends.clear();
depends.insert(79); linkorder1
tests[80] = depends; linkorder2
h.SetTests(tests);
h.PrintTests();
h.RunTests();
}
#endif