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TXProofMgr.cxx
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TXProofMgr.cxx
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// @(#)root/proofx:$Id$
// Author: Gerardo Ganis 12/12/2005
/*************************************************************************
* Copyright (C) 1995-2005, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
//////////////////////////////////////////////////////////////////////////
// //
// TXProofMgr //
// //
// The PROOF manager interacts with the PROOF server coordinator to //
// create or destroy a PROOF session, attach to or detach from //
// existing one, and to monitor any client activity on the cluster. //
// At most one manager instance per server is allowed. //
// //
//////////////////////////////////////////////////////////////////////////
#include <errno.h>
#ifdef WIN32
#include <io.h>
#endif
#include "Getline.h"
#include "TList.h"
#include "TObjArray.h"
#include "TObjString.h"
#include "TProof.h"
#include "TProofLog.h"
#include "TXProofMgr.h"
#include "TXSocket.h"
#include "TXSocketHandler.h"
#include "TROOT.h"
#include "TStopwatch.h"
#include "TSysEvtHandler.h"
#include "XProofProtocol.h"
ClassImp(TXProofMgr)
//
//----- ProofMgr Interrupt signal handler
//
class TProofMgrInterruptHandler : public TSignalHandler {
private:
TProofMgr *fMgr;
TProofMgrInterruptHandler(const TProofMgrInterruptHandler&); // Not implemented
TProofMgrInterruptHandler& operator=(const TProofMgrInterruptHandler&); // Not implemented
public:
TProofMgrInterruptHandler(TProofMgr *mgr)
: TSignalHandler(kSigInterrupt, kFALSE), fMgr(mgr) { }
Bool_t Notify();
};
////////////////////////////////////////////////////////////////////////////////
/// TProofMgr interrupt handler.
Bool_t TProofMgrInterruptHandler::Notify()
{
// Only on clients
if (isatty(0) != 0 && isatty(1) != 0) {
TString u = fMgr->GetUrl();
Printf("Opening new connection to %s", u.Data());
TXSocket *s = new TXSocket(u, 'C', kPROOF_Protocol,
kXPROOF_Protocol, 0, -1, (TXHandler *)fMgr);
if (s && s->IsValid()) {
// Set the interrupt flag on the server
s->CtrlC();
}
}
return kTRUE;
}
// Autoloading hooks.
// These are needed to avoid using the plugin manager which may create
// problems in multi-threaded environments.
TProofMgr *GetTXProofMgr(const char *url, Int_t l, const char *al)
{ return ((TProofMgr *) new TXProofMgr(url, l, al)); }
class TXProofMgrInit {
public:
TXProofMgrInit() {
TProofMgr::SetTXProofMgrHook(&GetTXProofMgr);
}};
static TXProofMgrInit gxproofmgr_init;
////////////////////////////////////////////////////////////////////////////////
/// Create a PROOF manager for the standard (old) environment.
TXProofMgr::TXProofMgr(const char *url, Int_t dbg, const char *alias)
: TProofMgr(url, dbg, alias)
{
// Set the correct servert type
fServType = kXProofd;
// Initialize
if (Init(dbg) != 0) {
// Failure: make sure the socket is deleted so that its lack of
// validity is correctly transmitted
SafeDelete(fSocket);
}
}
////////////////////////////////////////////////////////////////////////////////
/// Do real initialization: open the connection and set the relevant
/// variables.
/// Login and authentication are dealt with at this level, if required.
/// Return 0 in case of success, 1 if the remote server is a 'proofd',
/// -1 in case of error.
Int_t TXProofMgr::Init(Int_t)
{
// Here we make sure that the port is explicitly specified in the URL,
// even when it matches the default value
TString u = fUrl.GetUrl(kTRUE);
fSocket = 0;
if (!(fSocket = new TXSocket(u, 'C', kPROOF_Protocol,
kXPROOF_Protocol, 0, -1, this)) ||
!(fSocket->IsValid())) {
if (!fSocket || !(fSocket->IsServProofd()))
if (gDebug > 0)
Error("Init", "while opening the connection to %s - exit (error: %d)",
u.Data(), (fSocket ? fSocket->GetOpenError() : -1));
if (fSocket && fSocket->IsServProofd())
fServType = TProofMgr::kProofd;
return -1;
}
// Protocol run by remote PROOF server
fRemoteProtocol = fSocket->GetRemoteProtocol();
// We add the manager itself for correct destruction
{ R__LOCKGUARD2(gROOTMutex);
gROOT->GetListOfSockets()->Remove(fSocket);
}
// Set interrupt PROOF handler from now on
fIntHandler = new TProofMgrInterruptHandler(this);
// We are done
return 0;
}
////////////////////////////////////////////////////////////////////////////////
/// Destructor: close the connection
TXProofMgr::~TXProofMgr()
{
SetInvalid();
}
////////////////////////////////////////////////////////////////////////////////
/// Invalidate this manager by closing the connection
void TXProofMgr::SetInvalid()
{
if (fSocket)
fSocket->Close("P");
SafeDelete(fSocket);
// Avoid destroying twice
{ R__LOCKGUARD2(gROOTMutex);
gROOT->GetListOfSockets()->Remove(this);
}
}
////////////////////////////////////////////////////////////////////////////////
/// Dummy version provided for completeness. Just returns a pointer to
/// existing session 'id' (as shown by TProof::QuerySessions) or 0 if 'id' is
/// not valid. The boolena 'gui' should be kTRUE when invoked from the GUI.
TProof *TXProofMgr::AttachSession(TProofDesc *d, Bool_t gui)
{
if (!IsValid()) {
Warning("AttachSession","invalid TXProofMgr - do nothing");
return 0;
}
if (!d) {
Warning("AttachSession","invalid description object - do nothing");
return 0;
}
if (d->GetProof())
// Nothing to do if already in contact with proofserv
return d->GetProof();
// Re-compose url
TString u(Form("%s/?%d", fUrl.GetUrl(kTRUE), d->GetRemoteId()));
// We need this to set correctly the kUsingSessionGui bit before the first
// feedback messages arrive
if (gui)
u += "GUI";
// Attach
TProof *p = new TProof(u, 0, 0, gDebug, 0, this);
if (p && p->IsValid()) {
// Set reference manager
p->SetManager(this);
// Save record about this session
Int_t st = (p->IsIdle()) ? TProofDesc::kIdle
: TProofDesc::kRunning;
d->SetStatus(st);
d->SetProof(p);
// Set session tag
p->SetName(d->GetName());
} else {
// Session creation failed
Error("AttachSession", "attaching to PROOF session");
}
return p;
}
////////////////////////////////////////////////////////////////////////////////
/// Detach session with 'id' from its proofserv. The 'id' is the number
/// shown by QuerySessions. The correspondent TProof object is deleted.
/// If id == 0 all the known sessions are detached.
/// Option opt="S" or "s" forces session shutdown.
void TXProofMgr::DetachSession(Int_t id, Option_t *opt)
{
if (!IsValid()) {
Warning("DetachSession","invalid TXProofMgr - do nothing");
return;
}
if (id > 0) {
// Single session request
TProofDesc *d = GetProofDesc(id);
if (d) {
if (fSocket)
fSocket->DisconnectSession(d->GetRemoteId(), opt);
TProof *p = d->GetProof();
fSessions->Remove(d);
SafeDelete(p);
delete d;
}
} else if (id == 0) {
// Requesto to destroy all sessions
if (fSocket) {
TString o = Form("%sA",opt);
fSocket->DisconnectSession(-1, o);
}
if (fSessions) {
// Delete PROOF sessions
TIter nxd(fSessions);
TProofDesc *d = 0;
while ((d = (TProofDesc *)nxd())) {
TProof *p = d->GetProof();
SafeDelete(p);
}
fSessions->Delete();
}
}
return;
}
////////////////////////////////////////////////////////////////////////////////
/// Detach session 'p' from its proofserv. The instance 'p' is invalidated
/// and should be deleted by the caller
void TXProofMgr::DetachSession(TProof *p, Option_t *opt)
{
if (!IsValid()) {
Warning("DetachSession","invalid TXProofMgr - do nothing");
return;
}
if (p) {
// Single session request
TProofDesc *d = GetProofDesc(p);
if (d) {
if (fSocket)
fSocket->DisconnectSession(d->GetRemoteId(), opt);
fSessions->Remove(d);
p->Close(opt);
delete d;
}
}
return;
}
////////////////////////////////////////////////////////////////////////////////
/// Checks if 'url' refers to the same 'user@host:port' entity as the URL
/// in memory. TProofMgr::MatchUrl cannot be used here because of the
/// 'double' default port, implying an additional check on the port effectively
/// open.
Bool_t TXProofMgr::MatchUrl(const char *url)
{
if (!IsValid()) {
Warning("MatchUrl","invalid TXProofMgr - do nothing");
return 0;
}
TUrl u(url);
// Correct URL protocol
if (!strcmp(u.GetProtocol(), TUrl("a").GetProtocol()))
u.SetProtocol("proof");
if (u.GetPort() == TUrl("a").GetPort()) {
// Set default port
Int_t port = gSystem->GetServiceByName("proofd");
if (port < 0)
port = 1093;
u.SetPort(port);
}
// Now we can check
if (!strcmp(u.GetHostFQDN(), fUrl.GetHost()))
if (u.GetPort() == fUrl.GetPort() ||
u.GetPort() == fSocket->GetPort())
if (strlen(u.GetUser()) <= 0 || !strcmp(u.GetUser(),fUrl.GetUser()))
return kTRUE;
// Match failed
return kFALSE;
}
////////////////////////////////////////////////////////////////////////////////
/// Show available workers
void TXProofMgr::ShowWorkers()
{
if (!IsValid()) {
Warning("ShowWorkers","invalid TXProofMgr - do nothing");
return;
}
// Send the request
TObjString *os = fSocket->SendCoordinator(kQueryWorkers);
if (os) {
TObjArray *oa = TString(os->GetName()).Tokenize(TString("&"));
if (oa) {
TIter nxos(oa);
TObjString *to = 0;
while ((to = (TObjString *) nxos()))
// Now parse them ...
Printf("+ %s", to->GetName());
}
}
}
////////////////////////////////////////////////////////////////////////////////
/// Gets the URL to be prepended to paths when accessing the MSS associated
/// with the connected cluster, if any. The information is retrieved from
/// the cluster the first time or if retrieve is true.
const char *TXProofMgr::GetMssUrl(Bool_t retrieve)
{
if (fMssUrl.IsNull() || retrieve) {
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Error("GetMssUrl", "invalid TXProofMgr - do nothing");
return 0;
}
// Server may not support it
if (fSocket->GetXrdProofdVersion() < 1007) {
Error("GetMssUrl", "functionality not supported by server");
return 0;
}
TObjString *os = fSocket->SendCoordinator(kQueryMssUrl);
if (os) {
Printf("os: '%s'", os->GetName());
fMssUrl = os->GetName();
SafeDelete(os);
} else {
Error("GetMssUrl", "problems retrieving the required information");
return 0;
}
} else if (!IsValid()) {
Warning("GetMssUrl", "TXProofMgr is now invalid: information may not be valid");
return 0;
}
// Done
return fMssUrl.Data();
}
////////////////////////////////////////////////////////////////////////////////
/// Get list of sessions accessible to this manager
TList *TXProofMgr::QuerySessions(Option_t *opt)
{
if (opt && !strncasecmp(opt,"L",1))
// Just return the existing list
return fSessions;
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("QuerySessions","invalid TXProofMgr - do nothing");
return 0;
}
// Create list if not existing
if (!fSessions) {
fSessions = new TList();
fSessions->SetOwner();
}
// Send the request
TList *ocl = new TList;
TObjString *os = fSocket->SendCoordinator(kQuerySessions);
if (os) {
TObjArray *oa = TString(os->GetName()).Tokenize(TString("|"));
if (oa) {
TProofDesc *d = 0;
TIter nxos(oa);
TObjString *to = (TObjString *) nxos();
if (to && to->GetString().IsDigit() && !strncasecmp(opt,"S",1))
Printf("// +++ %s session(s) currently active +++", to->GetName());
while ((to = (TObjString *) nxos())) {
// Now parse them ...
Int_t id = -1, st = -1;
TString al, tg, tk;
Ssiz_t from = 0;
while (to->GetString()[from] == ' ') { from++; }
if (!to->GetString().Tokenize(tk, from, " ") || !tk.IsDigit()) continue;
id = tk.Atoi();
if (!to->GetString().Tokenize(tg, from, " ")) continue;
if (!to->GetString().Tokenize(al, from, " ")) continue;
if (!to->GetString().Tokenize(tk, from, " ") || !tk.IsDigit()) continue;
st = tk.Atoi();
// Add to the list, if not already there
if (!(d = (TProofDesc *) fSessions->FindObject(tg))) {
Int_t locid = fSessions->GetSize() + 1;
d = new TProofDesc(tg, al, GetUrl(), locid, id, st, 0);
fSessions->Add(d);
} else {
// Set missing / update info
d->SetStatus(st);
d->SetRemoteId(id);
d->SetTitle(al);
}
// Add to the list for final garbage collection
ocl->Add(new TObjString(tg));
}
SafeDelete(oa);
}
SafeDelete(os);
}
// Printout and Garbage collection
if (fSessions->GetSize() > 0) {
TIter nxd(fSessions);
TProofDesc *d = 0;
while ((d = (TProofDesc *)nxd())) {
if (ocl->FindObject(d->GetName())) {
if (opt && !strncasecmp(opt,"S",1))
d->Print("");
} else {
fSessions->Remove(d);
SafeDelete(d);
}
}
}
// We are done
return fSessions;
}
////////////////////////////////////////////////////////////////////////////////
/// Handle asynchronous input on the socket
Bool_t TXProofMgr::HandleInput(const void *)
{
if (fSocket && fSocket->IsValid()) {
TMessage *mess;
if (fSocket->Recv(mess) >= 0) {
Int_t what = mess->What();
if (gDebug > 0)
Info("HandleInput", "%p: got message type: %d", this, what);
switch (what) {
case kPROOF_TOUCH:
fSocket->RemoteTouch();
break;
default:
Warning("HandleInput", "%p: got unknown message type: %d", this, what);
break;
}
}
} else {
Warning("HandleInput", "%p: got message but socket is invalid!", this);
}
// We are done
return kTRUE;
}
////////////////////////////////////////////////////////////////////////////////
/// Handle error on the input socket
Bool_t TXProofMgr::HandleError(const void *in)
{
XHandleErr_t *herr = in ? (XHandleErr_t *)in : 0;
// Try reconnection
if (fSocket && herr && (herr->fOpt == 1)) {
fSocket->Reconnect();
if (fSocket && fSocket->IsValid()) {
if (gDebug > 0)
Printf("ProofMgr: connection to coordinator at %s re-established",
fUrl.GetUrl());
return kFALSE;
}
}
Printf("TXProofMgr::HandleError: %p: got called ...", this);
// Interrupt any PROOF session in Collect
if (fSessions && fSessions->GetSize() > 0) {
TIter nxd(fSessions);
TProofDesc *d = 0;
while ((d = (TProofDesc *)nxd())) {
TProof *p = (TProof *) d->GetProof();
if (p)
p->InterruptCurrentMonitor();
}
}
if (gDebug > 0)
Printf("TXProofMgr::HandleError: %p: DONE ... ", this);
// We are done
return kTRUE;
}
////////////////////////////////////////////////////////////////////////////////
/// Send a cleanup request for the sessions associated with the current user.
/// If 'hard' is true sessions are signalled for termination and moved to
/// terminate at all stages (top master, sub-master, workers). Otherwise
/// (default) only top-master sessions are asked to terminate, triggering
/// a gentle session termination. In all cases all sessions should be gone
/// after a few (2 or 3) session checking cycles.
/// A user with superuser privileges can also asks cleaning for an different
/// user, specified by 'usr', or for all users (usr = *)
/// Return 0 on success, -1 in case of error.
Int_t TXProofMgr::Reset(Bool_t hard, const char *usr)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("Reset","invalid TXProofMgr - do nothing");
return -1;
}
Int_t h = (hard) ? 1 : 0;
fSocket->SendCoordinator(kCleanupSessions, usr, h);
return 0;
}
////////////////////////////////////////////////////////////////////////////////
/// Get logs or log tails from last session associated with this manager
/// instance.
/// The arguments allow to specify a session different from the last one:
/// isess specifies a position relative to the last one, i.e. 1
/// for the next to last session; the absolute value is taken
/// so -1 and 1 are equivalent.
/// stag specifies the unique tag of the wanted session
/// The special value stag = "NR" allows to just initialize the TProofLog
/// object w/o retrieving the files; this may be useful when the number
/// of workers is large and only a subset of logs is required.
/// If 'stag' is specified 'isess' is ignored (unless stag = "NR").
/// If 'pattern' is specified only the lines containing it are retrieved
/// (remote grep functionality); to filter out a pattern 'pat' use
/// pattern = "-v pat".
/// If 'rescan' is TRUE, masters will rescan the worker sandboxes for the exact
/// paths, instead of using the save information; may be useful when the
/// ssave information looks wrong or incomplete.
/// Returns a TProofLog object (to be deleted by the caller) on success,
/// 0 if something wrong happened.
TProofLog *TXProofMgr::GetSessionLogs(Int_t isess, const char *stag,
const char *pattern, Bool_t rescan)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("GetSessionLogs","invalid TXProofMgr - do nothing");
return 0;
}
TProofLog *pl = 0;
// The absolute value of isess counts
isess = (isess > 0) ? -isess : isess;
// Special option in stag
bool retrieve = 1;
TString sesstag(stag);
if (sesstag == "NR") {
retrieve = 0;
sesstag = "";
}
// Get the list of paths
Int_t xrs = (rescan) ? 1 : 0;
TObjString *os = fSocket->SendCoordinator(kQueryLogPaths, sesstag.Data(), isess, -1, xrs);
// Analyse it now
Int_t ii = 0;
if (os) {
TString rs(os->GetName());
Ssiz_t from = 0;
// The session tag
TString tag;
if (!rs.Tokenize(tag, from, "|")) {
Warning("GetSessionLogs", "Session tag undefined: corruption?\n"
" (received string: %s)", os->GetName());
return (TProofLog *)0;
}
// The pool url
TString purl;
if (!rs.Tokenize(purl, from, "|")) {
Warning("GetSessionLogs", "Pool URL undefined: corruption?\n"
" (received string: %s)", os->GetName());
return (TProofLog *)0;
}
// Create the instance now
if (!pl)
pl = new TProofLog(tag, GetUrl(), this);
// Per-node info
TString to;
while (rs.Tokenize(to, from, "|")) {
if (!to.IsNull()) {
TString ord(to);
ord.Strip(TString::kLeading, ' ');
TString url(ord);
if ((ii = ord.Index(" ")) != kNPOS)
ord.Remove(ii);
if ((ii = url.Index(" ")) != kNPOS)
url.Remove(0, ii + 1);
// Add to the list (special tag for valgrind outputs)
if (url.Contains(".valgrind")) ord += "-valgrind";
pl->Add(ord, url);
// Notify
if (gDebug > 1)
Info("GetSessionLogs", "ord: %s, url: %s", ord.Data(), url.Data());
}
}
// Cleanup
SafeDelete(os);
// Retrieve the default part if required
if (pl && retrieve) {
const char *pat = pattern ? pattern : "-v \"| SvcMsg\"";
if (pat && strlen(pat) > 0)
pl->Retrieve("*", TProofLog::kGrep, 0, pat);
else
pl->Retrieve();
}
}
// Done
return pl;
}
////////////////////////////////////////////////////////////////////////////////
/// Read, via the coordinator, 'len' bytes from offset 'ofs' of 'file'.
/// Returns a TObjString with the content or 0, in case of failure
TObjString *TXProofMgr::ReadBuffer(const char *fin, Long64_t ofs, Int_t len)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("ReadBuffer","invalid TXProofMgr - do nothing");
return (TObjString *)0;
}
// Send the request
return fSocket->SendCoordinator(kReadBuffer, fin, len, ofs, 0);
}
////////////////////////////////////////////////////////////////////////////////
/// Read, via the coordinator, 'fin' filtered. If 'pattern' starts with '|',
/// it represents a command filtering the output. Elsewhere, it is a grep
/// pattern. Returns a TObjString with the content or 0 in case of failure
TObjString *TXProofMgr::ReadBuffer(const char *fin, const char *pattern)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("ReadBuffer", "invalid TXProofMgr - do nothing");
return (TObjString *)0;
}
const char *ptr;
Int_t type; // 1 = grep, 2 = grep -v, 3 = pipe through cmd
if (*pattern == '|') {
ptr = &pattern[1]; // strip first char if it is a command
type = 3;
}
else {
ptr = pattern;
type = 1;
}
// Prepare the buffer
Int_t plen = strlen(ptr);
Int_t lfi = strlen(fin);
char *buf = new char[lfi + plen + 1];
memcpy(buf, fin, lfi);
memcpy(buf+lfi, ptr, plen);
buf[lfi+plen] = 0;
// Send the request
return fSocket->SendCoordinator(kReadBuffer, buf, plen, 0, type);
}
////////////////////////////////////////////////////////////////////////////////
/// Display what ROOT versions are available on the cluster
void TXProofMgr::ShowROOTVersions()
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("ShowROOTVersions","invalid TXProofMgr - do nothing");
return;
}
// Send the request
TObjString *os = fSocket->SendCoordinator(kQueryROOTVersions);
if (os) {
// Display it
Printf("----------------------------------------------------------\n");
Printf("Available versions (tag ROOT-vers remote-path PROOF-version):\n");
Printf("%s", os->GetName());
Printf("----------------------------------------------------------");
SafeDelete(os);
}
// We are done
return;
}
////////////////////////////////////////////////////////////////////////////////
/// Set the default ROOT version to be used
Int_t TXProofMgr::SetROOTVersion(const char *tag)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Warning("SetROOTVersion","invalid TXProofMgr - do nothing");
return -1;
}
// Send the request
fSocket->SendCoordinator(kROOTVersion, tag);
// We are done
return (fSocket->GetOpenError() != kXR_noErrorYet) ? -1 : 0;
}
////////////////////////////////////////////////////////////////////////////////
/// Send a message to connected users. Only superusers can do this.
/// The first argument specifies the message or the file from where to take
/// the message.
/// The second argument specifies the user to which to send the message: if
/// empty or null the message is send to all the connected users.
/// return 0 in case of success, -1 in case of error
Int_t TXProofMgr::SendMsgToUsers(const char *msg, const char *usr)
{
Int_t rc = 0;
// Check input
if (!msg || strlen(msg) <= 0) {
Error("SendMsgToUsers","no message to send - do nothing");
return -1;
}
// Buffer (max 32K)
const Int_t kMAXBUF = 32768;
char buf[kMAXBUF] = {0};
char *p = &buf[0];
size_t space = kMAXBUF - 1;
Int_t lusr = 0;
// A specific user?
if (usr && strlen(usr) > 0 && (strlen(usr) != 1 || usr[0] != '*')) {
lusr = (strlen(usr) + 3);
snprintf(buf, kMAXBUF, "u:%s ", usr);
p += lusr;
space -= lusr;
}
ssize_t len = 0;
// Is it from file ?
if (!gSystem->AccessPathName(msg, kFileExists)) {
// From file: can we read it ?
if (gSystem->AccessPathName(msg, kReadPermission)) {
Error("SendMsgToUsers","request to read message from unreadable file '%s'", msg);
return -1;
}
// Open the file
FILE *f = 0;
if (!(f = fopen(msg, "r"))) {
Error("SendMsgToUsers", "file '%s' cannot be open", msg);
return -1;
}
// Determine the number of bytes to be read from the file.
size_t left = 0;
off_t rcsk = lseek(fileno(f), (off_t) 0, SEEK_END);
if ((rcsk != (off_t)(-1))) {
left = (size_t) rcsk;
if ((lseek(fileno(f), (off_t) 0, SEEK_SET) == (off_t)(-1))) {
Error("SendMsgToUsers", "cannot rewind open file (seek to 0)");
fclose(f);
return -1;
}
} else {
Error("SendMsgToUsers", "cannot get size of open file (seek to END)");
fclose(f);
return -1;
}
// Now readout from file
size_t wanted = left;
if (wanted > space) {
wanted = space;
Warning("SendMsgToUsers",
"requested to send %lld bytes: max size is %lld bytes: truncating",
(Long64_t)left, (Long64_t)space);
}
do {
while ((len = read(fileno(f), p, wanted)) < 0 &&
TSystem::GetErrno() == EINTR)
TSystem::ResetErrno();
if (len < 0) {
SysError("SendMsgToUsers", "error reading file");
break;
}
// Update counters
left = (len >= (ssize_t)left) ? 0 : left - len;
p += len;
wanted = (left > kMAXBUF-1) ? kMAXBUF-1 : left;
} while (len > 0 && left > 0);
// Close file
fclose(f);
} else {
// Add the message to the buffer
len = strlen(msg);
if (len > (ssize_t)space) {
Warning("SendMsgToUsers",
"requested to send %lld bytes: max size is %lld bytes: truncating",
(Long64_t)len, (Long64_t)space);
len = space;
}
memcpy(p, msg, len);
}
// Null-terminate
buf[len + lusr] = 0;
// Send the request
fSocket->SendCoordinator(kSendMsgToUser, buf);
return rc;
}
////////////////////////////////////////////////////////////////////////////////
/// Run 'grep' on the nodes
void TXProofMgr::Grep(const char *what, const char *how, const char *where)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Error("Grep","invalid TXProofMgr - do nothing");
return;
}
// Server may not support it
if (fSocket->GetXrdProofdVersion() < 1006) {
Error("Grep", "functionality not supported by server");
return;
}
// Send the request
TObjString *os = Exec(kGrep, what, how, where);
// Show the result, if any
if (os) Printf("%s", os->GetName());
// Cleanup
SafeDelete(os);
}
////////////////////////////////////////////////////////////////////////////////
/// Run 'find' on the nodes
void TXProofMgr::Find(const char *what, const char *how, const char *where)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Error("Find","invalid TXProofMgr - do nothing");
return;
}
// Server may not support it
if (fSocket->GetXrdProofdVersion() < 1006) {
Error("Find", "functionality not supported by server (XrdProofd version: %d)",
fSocket->GetXrdProofdVersion());
return;
}
// Send the request
TObjString *os = Exec(kFind, what, how, where);
// Show the result, if any
if (os) Printf("%s", os->GetName());
// Cleanup
SafeDelete(os);
}
////////////////////////////////////////////////////////////////////////////////
/// Run 'ls' on the nodes
void TXProofMgr::Ls(const char *what, const char *how, const char *where)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Error("Ls","invalid TXProofMgr - do nothing");
return;
}
// Server may not support it
if (fSocket->GetXrdProofdVersion() < 1006) {
Error("Ls", "functionality not supported by server");
return;
}
// Send the request
TObjString *os = Exec(kLs, what, how, where);
// Show the result, if any
if (os) Printf("%s", os->GetName());
// Cleanup
SafeDelete(os);
}
////////////////////////////////////////////////////////////////////////////////
/// Run 'more' on the nodes
void TXProofMgr::More(const char *what, const char *how, const char *where)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Error("More","invalid TXProofMgr - do nothing");
return;
}
// Server may not support it
if (fSocket->GetXrdProofdVersion() < 1006) {
Error("More", "functionality not supported by server");
return;
}
// Send the request
TObjString *os = Exec(kMore, what, how, where);
// Show the result, if any
if (os) Printf("%s", os->GetName());
// Cleanup
SafeDelete(os);
}
////////////////////////////////////////////////////////////////////////////////
/// Run 'rm' on the nodes. The user is prompted before removal, unless 'how'
/// contains "--force" or a combination of single letter options including 'f',
/// e.g. "-fv".
Int_t TXProofMgr::Rm(const char *what, const char *how, const char *where)
{
// Nothing to do if not in contact with proofserv
if (!IsValid()) {
Error("Rm","invalid TXProofMgr - do nothing");
return -1;
}
// Server may not support it
if (fSocket->GetXrdProofdVersion() < 1006) {
Error("Rm", "functionality not supported by server");
return -1;
}
TString prompt, ans("Y"), opt(how);
Bool_t force = kFALSE;
if (!opt.IsNull()) {
TString t;
Int_t from = 0;