Leaked source code of windows server 2003
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/*
This script is invoked by master.js to provide async
communications to the slave machines running "slave.js"
Communication between harness and master is exclusivly thru
"messages".
*/
/*
notes:
On abort we still need to be able to get to all the remote status information
so that it can be inspected.
Not until setmode IDLE is it OK to loose the status.
May need to keep connections alive until setmode idle, maybe not.
Build.log, build.wrn, build.err, sync.log, sync.err
Publicdata.abuild[0].aDepot[n].aTask[x].strLog* will contain
UNCs to these log files.
HARNESS.js overview of how it works:
mtscript
starts master
master
starts harness
master sends "start" message to harness
harness
for each remote machine
start a slaveproxy
wait for OK/FAIL
sends "start" message to each slaveproxy
slaveproxy
When "start" message is received,
connects to a remote mtscript.
Exec setconfig
Exec setenv
Exec setmode slave
Exec start
slave
Waits
On exec("start") begin the DoBuild process
When status in PublicData changes, NotifyScript("UpdateAll");
After a build pass completes,
set PublicData.aBuild[0].hMachine[""].strBuildPassStatus == "waitnext[012]"
NotifyScript("SetBuildStatus") to slaveproxy
Wait 'DoNextPass';
On exec("nextpass") reset strBuildPassStatus, signal 'DoNextPass'
harness sets status and syncs mtscript
*/
Include('types.js');
Include('utils.js');
Include('staticstrings.js');
Include('MsgQueue.js');
Include('buildreport.js');
var g_cDialogIndex = 0;
var g_aSlaveQueues = new Array();
var g_hSlaveQueues = new Object();
var g_MasterQueue = null;
var g_strConfigError = 'ConfigError';
var g_strOK = 'ok';
var g_strSlaveProxyFail = 'slaveproxy.js failed to start';
var g_strNoEnvTemplate = 'must set config and environment templates first';
var g_strException = "an error occurred, but I'm not telling what it was";
var g_strDisconnect = "The connection to the remote machine no longer exists";
var g_HarnessThreadReady = 'HarnessThreadReady';
var g_HarnessThreadFailed = 'HarnessThreadFailed';
var g_aHarnessWaitFor = ['HarnessThreadExit', 'RebuildWaitArray','handlebuildwaiting'];
var g_aSlaveProxySignals = ['SlaveProxyThreadReady', 'SlaveProxyThreadFailed'];
var g_nBuildPass = 0;
var g_aStrBuildPassStatus = new Array();
function harness_js::OnScriptError(strFile, nLine, nChar, strText, sCode, strSource, strDescription)
{
return CommonOnScriptError("harness_js", strFile, nLine, nChar, strText, sCode, strSource, strDescription);
}
function harness_js::ScriptMain()
{
LogMsg('ScriptMain()');
var nEvent;
var aWaitQueues;
var i;
g_MasterQueue = GetMsgQueue(ScriptParam);
if (typeof(g_MasterQueue) == 'object')
{
LogMsg('ScriptMain() HarnessThreadReady');
ResetSync('SlaveProxyThreadExit');
SpawnScript('publicdataupdate.js', 0);
SignalThreadSync(g_HarnessThreadReady);
CommonVersionCheck(/* $DROPVERSION: */ "V(########) F(!!!!!!!!!!!!!!)" /* $ */);
do
{
var name = '';
aWaitQueues = new Array();
aWaitQueues[0] = g_MasterQueue;
aWaitQueues = aWaitQueues.concat(g_aSlaveQueues);
nEvent = WaitForMultipleQueues(aWaitQueues, g_aHarnessWaitFor.toString(), HarnessMsgProc, 0);
if (nEvent > 0 && nEvent <= g_aHarnessWaitFor.length)
{
ResetSync(g_aHarnessWaitFor[nEvent - 1]);
if (nEvent == 3)
{
HandleBuildWaiting();
}
}
}
while (nEvent != 1); // While not HarnessThreadExit
AbortRemoteMachines();
}
else
{
LogMsg('ScriptMain() ' + g_HarnessThreadFailed);
SignalThreadSync(g_HarnessThreadFailed);
}
SignalThreadSync('publicdataupdateexit');
// tell the slaveproxy thread to quit
SignalThreadSync('SlaveProxyThreadExit');
LogMsg('ScriptMain() exit');
}
function harness_js::OnEventSourceEvent(RemoteObj, DispID, cmd, params)
{
LogMsg('OnEventSourceEvent()');
}
function HarnessMsgProc(queue, msg)
{
var vRet = g_strOK;
var params;
try
{
params = msg.aArgs;
if (queue == g_MasterQueue)
{
LogMsg('masterQ' + params[0]);
switch (params[0])
{
case 'test':
LogMsg('Recieved a test message. ArgCount=' + params.length + ' arg1 is: ' + params[1]);
break;
case 'start':
vRet = StartRemoteMachines();
SignalThreadSync(g_aHarnessWaitFor[1]);
break;
case 'restartcopyfiles':
vRet = BroadCastMessage('restartcopyfiles', params[1], (params[1] ? [ params[1] ] : null ), false);
break;
case 'abort':
AbortRemoteMachines();
break;
case 'remote':
LogMsg("Recieved remote razzle command for machine " + params[1]);
vRet = BroadCastMessage('remote', params[1], [ params[1] ], true);
break;
case 'ignoreerror': // Params are: ignoreerror,{mach},8,\\{mach}\BC_Build_Logs\build_logs\build_Admin.log
LogMsg("ignore error, params are: " + params.join(", "));
PrivateData.dateErrorMailSent = 0;
vRet = BroadCastMessage('ignoreerror',
params[1],
[(params[1].split(','))[0]]);
break;
case 'restarttask': // task id: "machine.nID"
break;
case 'harnessexit':
AbortRemoteMachines();
SignalThreadSync(g_aHarnessWaitFor[0]);
break;
// DEBUG USE ONLY:
// 'refreshpublicdata' allows you to force the
// build manager to do a complete update of
// its copy of PublicData from the specified
// machine, or all machines.
// 'getspdata' causes SlaveProxy to uneval
// its view of PublicData.
// The format for the param for these commands is:
// " {machinename | all},data "
// where "data" is specific to the command.
case 'refreshpublicdata':
case 'getspdata':
ExecuteDebugCommand(params[0], params[1]);
break;
// speval -- Pass the argument to the
// named remote machine to be executed by
// the remote machine "mtscript.js"
case 'speval':
ExecuteDebugCommand('eval', params[1]);
break;
// spseval -- Pass the argument to the
// named remote machine to be executed by
// the remote machine "slave.js"
case 'spseval':
ExecuteDebugCommand('seval', params[1]);
break;
// proxeval -- Pass the argument to the
// proxy for the named remote machine to be executed by
// the remote machine's proxy ("slaveproxy.js");
case 'proxeval':
ExecuteDebugCommand('proxeval', params[1]);
break;
default:
vRet = 'invalid command: ' + params[0];
break;
}
}
else
{
LogMsg('slaveQ' + params[0]);
switch(params[0])
{
case 'displaydialog':
DisplayDialog(params[1]);
break;
case 'abort':
AbortRemoteMachines();
break;
}
// ignore for now....
}
}
catch(ex)
{
vRet = " " + ex;
}
LogMsg('returns :' + vRet);
return vRet;
}
function harness_js::OnProcessEvent(pid, evt, param)
{
ASSERT(false, 'OnProcessEvent('+pid+', '+evt+', '+param+') received!');
}
function AbortRemoteMachines()
{
LogMsg("Aborting remote machines");
var i;
var aMsgs = new Object();
var nEvent;
for(i = 0; i < g_aSlaveQueues.length; ++i)
{
if (g_aSlaveQueues[i] != null)
aMsgs[i] = g_aSlaveQueues[i].SendMessage('abort');
}
LogMsg("Aborted remote machines -- waiting for response");
for(i in aMsgs)
{
if (aMsgs.__isPublicMember(i))
{
if (g_aSlaveQueues[i].WaitForMsg(aMsgs[i], 2000))
delete aMsgs[i];
else
LogMsg("Machine " + g_aSlaveQueues.strName + " timeout");
}
}
// try again
for(i in aMsgs)
{
if (aMsgs.__isPublicMember(i))
{
if (g_aSlaveQueues[i].WaitForMsg(aMsgs[i], 2000))
delete aMsgs[i];
else
LogMsg("Machine " + g_aSlaveQueues.strName + " timeout 2");
}
}
for(i = 0; i < g_aSlaveQueues.length; ++i)
{
if (aMsgs[i] != null)
{
LogMsg("Machine " + g_aSlaveQueues.strName + " failed to abort");
}
}
g_aSlaveQueues = new Array();
g_hSlaveQueues = new Object();
}
function StartRemoteMachines()
{
var vRet = g_strOK;
var i;
var aMachinePool;
var index = 0;
var aIConnectedMachine = new Array();
var newmach = new Object;
var aSlaveQueues = new Array();
var hSlaveQueues = new Object();
var hStartedMachines = new Object(); // hash of machine we launched
var nEvent = 0;
var SlaveQueue;
try
{
EnsureArray(PrivateData.objEnviron, 'Machine');
aMachinePool = PrivateData.objEnviron.Machine;
// First cleanup any leftover connections
for(i in PublicData.aBuild[0].hMachine)
{
if (PublicData.aBuild[0].hMachine.__isPublicMember(i))
{
ThrowError("StartRemoteMachines called, but there are still open connections",0);
}
}
ResetSync('SlaveProxyThreadExit');
index = 0;
for (i = 0; i < aMachinePool.length && nEvent != 2; ++i)
{
if (hStartedMachines[aMachinePool[i].Name] == null)
{
if (LocalMachine == aMachinePool[i].Name)
{
ThrowError("Warning: cannot start remote build on local machine " + aMachinePool[i].Name);
}
hStartedMachines[aMachinePool[i].Name] = true;
SlaveQueue = new MsgQueue("slaveproxy" + index + "," + aMachinePool[i].Name);
LogMsg('Start proxy for machine: ' + aMachinePool[i].Name);
ResetSync(g_aSlaveProxySignals.toString());
SpawnScript('slaveproxy.js', SlaveQueue);
nEvent = WaitForMultipleSyncs(g_aSlaveProxySignals.toString(), false, 0);
if (nEvent == 2)
break;
hSlaveQueues[aMachinePool[i].Name] = SlaveQueue;
aSlaveQueues[index++] = SlaveQueue;
}
}
g_aSlaveQueues = aSlaveQueues;
g_hSlaveQueues = hSlaveQueues;
if (nEvent == 2)
{
vRet = g_strSlaveProxyFail;
ReportError("Starting build", "Cannot start build on machine " + aMachinePool[i].Name);
AbortRemoteMachines();
}
else
{
for(i = 0; i < g_aSlaveQueues.length; ++i)
{
g_aSlaveQueues[i].SendMessage('start');
}
}
}
catch(ex)
{
vRet = " " + ex;
LogMsg(vRet);
}
return vRet;
}
function ReportError(strTitle, strMsg)
{
dlg = new Dialog();
dlg.fShowDialog = true;
dlg.cDialogIndex = 0;
dlg.strTitle = strTitle;
dlg.strMessage = strMsg;
dlg.aBtnText[0] = "OK";
DisplayDialog(dlg);
}
function OnRemoteExecHandler(info, param)
{
LogMsg('Got OnRemoteExec! info='+info+', param='+param);
}
function ChangeFileStatus(strFrom, strTo)
{
try // BUGBUG remove this try/catch
{
var strMachineName;
var strSDRoot;
var PubData;
var i;
var nFiles = 0;
// BUGBUG: This should scan "hPublishedFiles" instead of hPublisher -- its a flatter structure
// and it refers to the same data anyway.
for(strMachineName in PrivateData.hPublisher)
{
if (!PrivateData.hPublisher.__isPublicMember(strMachineName))
continue;
PubData = PrivateData.hPublisher[strMachineName];
for (strSDRoot in PubData.hPublishEnlistment)
{
if (!PubData.hPublishEnlistment.__isPublicMember(strSDRoot))
continue;
publishEnlistment = PubData.hPublishEnlistment[strSDRoot];
for (i = 0; i < publishEnlistment.aPublishedFile.length; ++i)
{
if (publishEnlistment.aPublishedFile[i].strPublishedStatus == strFrom)
{
// LogMsg("Change status to " + strTo + " of " + publishEnlistment.aPublishedFile[i].strName + " from " + strFrom);
publishEnlistment.aPublishedFile[i].strPublishedStatus = strTo;
nFiles++;
}
}
}
}
LogMsg("Changed the status of " + nFiles + " files from " + strFrom + " to " + strTo);
}
catch(ex)
{
LogMsg("ChangeFileStatus " +
strFrom +
", " +
strTo +
", exception mach=" +
strMachineName +
", root=" +
strSDRoot +
", i is " + i +
", " + ex);
throw ex;
}
}
function HandleBuildWaiting()
{
try
{
var strMachineName;
var strStatExpecting = '';
var strStat;
var strMatch;
var nPass;
var fDiff = false;
var i;
var fSuccess = true;
i = 0;
for (strMachineName in PublicData.aBuild[0].hMachine)
{
if (!PublicData.aBuild[0].hMachine.__isPublicMember(strMachineName))
continue;
strStat = strMachineName + "," + PublicData.aBuild[0].hMachine[strMachineName].strBuildPassStatus;
if (g_aStrBuildPassStatus.length < i || g_aStrBuildPassStatus[i] != strStat)
{
g_aStrBuildPassStatus[i] = strStat;
fDiff = true;
}
fSuccess &= PublicData.aBuild[0].hMachine[strMachineName].fSuccess;
++i;
}
// Set the Failure flag in the script host to allow for easy error/success queries
// Oddly, normally Number(!false) == 1, but here, StatusValue(0) get set to either 0 or -1.
StatusValue(0) = !fSuccess;
if (!fDiff)
return;
LogMsg("handlebuildwaiting strBuildPassStatus changed");
for (i = 0; i < g_aStrBuildPassStatus.length; ++i)
{
LogMsg("handlebuildwaiting " + g_aStrBuildPassStatus[i]);
}
for (i = 0; i < g_aStrBuildPassStatus.length; ++i)
{
var strStat = g_aStrBuildPassStatus[i].split(',');
var nPass = strStat[2];
strStat = strStat[1];
if (strStatExpecting == '')
strStatExpecting = strStat;
if (strStat != strStatExpecting)
{
PublicData.strStatus = BUSY;
return;
}
if (strStatExpecting == WAITNEXT && nPass != g_nBuildPass)
{
// This can happen if:
// all remote machines were at NEXTPASS,0, then
// one machine got to NEXTPASS,1 before at least one
// of the other machines changed its strBuildPassStatus
//LogMsg("Slave " + strMachineName + " is building the wrong pass!");
PublicData.strStatus = BUSY;
return;
}
}
LogMsg("strStatExpecting is " + strStatExpecting);
if (strStatExpecting != COMPLETED)
PublicData.strStatus = BUSY;
switch(strStatExpecting)
{
case WAITCOPYTOPOSTBUILD:
HandleWaitCopyToPostBuild();
break;
case WAIT + BUILD:
HandleWaitBuild();
break;
case WAITNEXT:
HandleWaitNext();
break;
case WAIT + POSTBUILD:
case COMPLETED:
HandleCompleted();
break;
case WAITPHASE:
// Change the file status of files published in phase 2.
ChangeFileStatus(FS_COPYTOSLAVE, FS_ADDTOPUBLISHLOG );
ChangeFileStatus(FS_COPIEDTOMASTER, FS_COPYTOSLAVE);
BroadCastMessage('createmergedpublish.log', '', [PrivateData.objEnviron.BuildManager.PostBuildMachine]);
BroadCastMessage('nextpass');
break;
case WAIT + SYNC:
break;
default:
LogMsg("No action on strBuildPassStatus == " + strStatExpecting);
break;
}
}
catch(ex)
{
LogMsg("strMachineName = " + strMachineName + ", strStatExpecting=" + strStatExpecting + ", " + ex);
}
}
function HandleCompleted()
{
PublicData.strStatus = COMPLETED;
GenerateBuildReport();
}
function HandleWaitCopyToPostBuild()
{
LogMsg("(pass " + g_nBuildPass + ")");
BroadCastMessage('copyfilestopostbuild');
}
function HandleWaitBuild()
{
// All slaves are waiting. Time to copy files back to slaves
var i;
LogMsg("(pass " + g_nBuildPass + ")");
ChangeFileStatus(FS_COPYTOSLAVE, FS_ADDTOPUBLISHLOG );
ChangeFileStatus(FS_COPIEDTOMASTER, FS_COPYTOSLAVE);
BroadCastMessage('copyfilestoslaves');
BroadCastMessage('nextpass');
}
function HandleWaitNext()
{
LogMsg("(pass " + g_nBuildPass + ")");
++g_nBuildPass;
BroadCastMessage('nextpass');
}
/*
Send a command to 1 or more slaveproxies.
"cmd" is sent.
Arg can be:
empty: Send CMD to all slaveproxies
name: Send CMD to just one slaveproxy, for machine "name".
all: Send CMD to all slaveproxies;
name,stuff: Send CMD to machine "name", with argument "stuff"
all,stuff: Send CMD to all machines, with argument "stuff"
*/
function ExecuteDebugCommand(cmd, arg)
{
var aMachines;
var nComma;
if (arg.length > 0)
{
aMachines = new Array();
nComma = arg.indexOf(',');
if (nComma > 0)
{
aMachines[0] = arg.slice(0, nComma).toUpperCase();
arg = arg.slice(nComma + 1);
}
else
{
aMachines[0] = arg.toUpperCase();
arg = "";
}
if (aMachines[0] == "ALL")
aMachines = null;
}
BroadCastMessage(cmd, arg, aMachines, true);
}
/*
BroadCastMessage
Send a simple text message to all or a selected set of the slaveproxies.
If aMachines is specified (as an array of machine names) then broadcast
only to those machines.
If fWait is true, then wait for each slaveproxy to reply to the message
*/
function BroadCastMessage(strMsg, strArg, aMachines, fWait)
{
var i;
var aQueues;
var vRet = g_strOK;
var aMsgs = new Object();
LogMsg("BroadCastMessage(" + strMsg + ',' + strArg + ',' + aMachines + ',' + fWait + ")");
if (!aMachines)
{
aQueues = g_aSlaveQueues;
}
else
{
aQueues = new Array();
for (i = 0; i < aMachines.length; i++)
{
if (g_hSlaveQueues[aMachines[i]])
{
aQueues[aQueues.length] = g_hSlaveQueues[aMachines[i]];
}
else
{
vRet = g_strDisconnect;
}
}
}
for(i = 0; i < aQueues.length; ++i)
{
try
{
if (aQueues[i] != null)
aMsgs[i] = aQueues[i].SendMessage(strMsg, strArg);
}
catch(ex)
{
LogMsg(" i = " +
i +
", " +
ex);
if (aQueues[i] != null)
LogMsg("Queue name is " + aQueues[i].strName);
}
}
if (!fWait)
{
return vRet;
}
for(i in aMsgs)
{
if (aMsgs.__isPublicMember(i))
{
if (aQueues[i].WaitForMsg(aMsgs[i], 15000))
{
LogMsg("Machine " + aQueues[i].strName + " replied for " + strMsg);
vRet = aMsgs[i].vReplyValue;
delete aMsgs[i];
}
else
LogMsg("Machine " + aQueues[i].strName + " timeout");
}
}
return vRet;
}
/*
DisplayDialog()
Handle ErrorDialog requests from SlaveProxies as well
as harness generated errors.
Messages are both EMailed and displayed as a dialog.
Throttle EMail messages by MAIL_RESEND_INTERVAL
Throttle dialog display by PublicData.objDialog.fShowDialog.
*/
function DisplayDialog(dlg)
{
var curDate = new Date().getTime();
LogMsg("DisplayDialog: " + dlg.strMessage);
TakeThreadLock('Dialog');
try
{
if ((curDate - PrivateData.dateErrorMailSent) > MAIL_RESEND_INTERVAL)
{
PrivateData.dateErrorMailSent = curDate;
SendErrorMail(dlg.strTitle, dlg.strMessage);
}
if (!dlg.fEMailOnly && (!PublicData.objDialog || PublicData.objDialog.fShowDialog == false))
{
dlg.cDialogIndex = ++g_cDialogIndex;
PublicData.objDialog = dlg;
}
}
catch(ex)
{
ReleaseThreadLock('Dialog');
LogMsg("an error occurred in DisplayDialog, " + ex);
throw ex;
}
ReleaseThreadLock('Dialog');
}