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XrdXrootdTransit Class Reference

#include <XrdXrootdTransit.hh>

Inheritance diagram for XrdXrootdTransit:
Collaboration diagram for XrdXrootdTransit:

Public Member Functions

 XrdXrootdTransit ()
 Constructor & Destructor.
virtual ~XrdXrootdTransit ()
bool Disc ()
 Handle dismantlement.
void Proceed ()
 Resume processing after a waitresp completion.
int Process (XrdLink *lp)
 Handle link activation (replaces parent activation).
void Recycle (XrdLink *lp, int consec, const char *reason)
 Handle link shutdown.
void Redrive ()
 Redrive a request after a wait.
bool Run (const char *xreqP, char *xdataP=0, int xdataL=0)
 Inject an xrootd request into the protocol stack.
int Send (int rcode, const struct iovec *ioVec, int ioNum, int ioLen)
 Handle request data response.
int Send (long long offset, int dlen, int fdnum)
 Handle request sendfile response.
int Send (XrdOucSFVec *sfvec, int sfvnum, int dlen)
int setSF (kXR_char *fhandle, bool seton=false)
 Set sendfile() enablement.
void SetWait (int wtime, bool notify=false)
 Set maximum wait time.
Public Member Functions inherited from XrdXrootd::Bridge
 Bridge ()
 Constructor & Destructor.
Public Member Functions inherited from XrdXrootdProtocol
 XrdXrootdProtocol ()
 ~XrdXrootdProtocol ()
void aioUpdate (int val)
void aioUpdReq (int val)
XrdSfsXioHandle Claim (const char *buff, int datasz, int minasz=0) override
int do_WriteSpan ()
void DoIt () override
int getData (gdCallBack *gdcbP, const char *dtype, char *buff, int blen)
int getData (gdCallBack *gdcbP, const char *dtype, struct iovec *iov, int iovn)
int getDump (const char *dtype, int dlen)
int getPathID ()
XrdProtocolMatch (XrdLink *lp) override
XrdXrootdProtocol operator= (const XrdXrootdProtocol &rhs)=delete
int Process2 ()
int ProcSig ()
int SendFile (int fildes) override
int SendFile (XrdOucSFVec *sfvec, int sfvnum) override
void SetFD (int fildes) override
int Stats (char *buff, int blen, int do_sync=0) override
void StreamNOP ()
XrdSfsXioHandle Swap (const char *buff, XrdSfsXioHandle h=0) override
XrdXrootdProtocolVerifyStream (int &rc, int pID, bool lok=true)
Public Member Functions inherited from XrdProtocol
 XrdProtocol (const char *jname)
virtual ~XrdProtocol ()
Public Member Functions inherited from XrdJob
 XrdJob (const char *desc="")
virtual ~XrdJob ()
Public Member Functions inherited from XrdXrootd::gdCallBack
 gdCallBack ()
virtual ~gdCallBack ()
virtual void gdFail ()
Public Member Functions inherited from XrdSfsDio
 XrdSfsDio ()
 Constructor and destructor.
virtual ~XrdSfsDio ()
Public Member Functions inherited from XrdSfsXio
 XrdSfsXio (XrdSfsXioImpl &xioimpl)
virtual ~XrdSfsXio ()
 Constructor and destructor.

Static Public Member Functions

static XrdXrootdTransitAlloc (XrdXrootd::Bridge::Result *respP, XrdLink *linkP, XrdSecEntity *seceP, const char *nameP, const char *protP)
 Get a new transit object.
static int Attn (XrdLink *lP, short *theSID, int rcode, const struct iovec *ioVec, int ioNum, int ioLen)
 Handle attention response (i.e. async response)
static void Init (XrdScheduler *schedP, int qMax, int qTTL)
 Perform one-time initialization.
static const char * ReqTable ()
 Initialize the valid request table.
Static Public Member Functions inherited from XrdXrootd::Bridge
static BridgeLogin (Result *rsltP, XrdLink *linkP, XrdSecEntity *seceP, const char *nameP, const char *protP)
Static Public Member Functions inherited from XrdXrootdProtocol
static char * Buffer (XrdSfsXioHandle h, int *bsz)
static int Configure (char *parms, XrdProtocol_Config *pi)
static void Reclaim (XrdSfsXioHandle h)
Static Public Member Functions inherited from XrdSfsXio
static char * Buffer (XrdSfsXioHandle theHand, int *buffsz=0)
static void Reclaim (XrdSfsXioHandle theHand)

Additional Inherited Members

Public Attributes inherited from XrdJob
const char * Comment
XrdJobNextJob
Static Public Attributes inherited from XrdXrootdProtocol
static bool as_aioOK = true
static bool as_force = false
static int as_maxperlnk = 8
static int as_maxperreq = 8
static int as_maxpersrv = 4096
static int as_maxstalls = 4
static int as_miniosz = 98304
static int as_minsfsz = 8192
static bool as_nosf = false
static short as_okstutter = 1
static int as_seghalf = 32768
static int as_segsize = 65536
static bool as_syncw = false
static short as_timeout = 45
static const int maxStreams = 16
Protected Member Functions inherited from XrdXrootd::Bridge
virtual ~Bridge ()
Protected Member Functions inherited from XrdXrootdProtocol
void MonAuth ()
int SetSF (kXR_char *fhandle, bool seton=false)
Static Protected Member Functions inherited from XrdXrootdProtocol
static unsigned int getSID ()
Protected Attributes inherited from XrdXrootdProtocol
bool ableTLS
char * AppName
XrdBufferargp
XrdSecProtocolAuthProt
unsigned char CapVer
XrdSecEntityClient
int clientPV
int clientRN
int cumReadP
int cumReads
int cumReadV
int cumSegsV
int cumSegsW
int cumWrites
int cumWritV
char doTLS
XrdSysCondVar2endNote
XrdSecEntity Entity
XrdXrootdFileTableFTab
struct XrdXrootdProtocol::GetDataCtl gdCtl
int halfBSize
int hcNext
int hcNow
int hcPrev
XrdXrootd::IOParms IO
bool isActive
bool isDead
bool isLinkWT
bool isNOP
bool isTLS
XrdLinkLink
RAtomic_int linkAioReq
XrdXrootdMonitor::User Monitor
int myBlast
int myBlen
char * myBuff
unsigned int mySID
int myStalls
bool newPio
int numFiles
int numReadP
int numReads
int numReadV
int numSegsV
int numSegsW
int numWrites
int numWritV
short PathID
XrdXrootdPgwCtlpgwCtl
XrdXrootdPiopioFirst
XrdXrootdPiopioFree
XrdXrootdPiopioLast
bool pmDone
XrdNetPMark::HandlepmHandle
int PrepareCount
XrdSecProtectProtect
short rdType
XrdXrootdReqID ReqID
ClientRequest Request
char reserved [3]
XrdXrootdResponse Response
int(XrdXrootdProtocol::* Resume )()
int(XrdXrootdProtocol::* ResumePio )()
XrdSysSemaphorereTry
unsigned char rvSeq
char sigBuff [64]
bool sigHere
bool sigNeed
bool sigRead
SecurityRequest sigReq
ClientRequest sigReq2Ver
bool sigWarn
char Status
XrdXrootdProtocolStream [maxStreams]
XrdSysMutex streamMutex
long long totReadP
XrdSysMutex unbindMutex
XrdXrootdWVInfowvInfo
unsigned char wvSeq
Static Protected Attributes inherited from XrdXrootdProtocol
static XrdNetSocketAdminSock = 0
static XrdBuffManagerBPool
static XrdSecServiceCIA = 0
static bool CL_Redir = false
static XrdSecProtectorDHS = 0
static XrdSfsFileSystemdigFS = 0
static XrdSysErroreDest = XrdXrootd::eLog
static uint64_t fsFeatures = 0
static int hailWait
static int hcMax = 28657
static bool isProxy = false
static char isRedir = 0
static char JobCKCGI =0
static XrdXrootdJobJobCKS = 0
static char * JobCKT = 0
static XrdOucTListJobCKTLST = 0
static char JobLCL = 0
static time_t keepT = 86400
static bool LimitError = true
static XrdXrootdFileLockLocker
static int maxBuffsz
static const int maxPio = 4
static int maxReadv_ior
static int maxTransz = 262144
static const char * myCName = 0
static int myCNlen = 0
static gid_t myGID = 0
static const char * myGName = "?"
static int myGNLen = 1
static const char * myInst = 0
static int myPID = static_cast<int>(getpid())
static int myRole = 0
static int myRolf = 0
static uid_t myUID = 0
static const char * myUName = "?"
static int myUNLen = 1
static char * Notify = 0
static bool OD_Bypass = false
static bool OD_Redir = false
static int OD_Stall = 33
static XrdSfsFileSystemosFS
static XrdNetPMarkPMark = 0
static int Port
static bool PrepareAlt = false
static int PrepareLimit = -1
static XrdOucReqIDPrepID = 0
static int readWait
static const char Req_TLSData = 0x01
static const char Req_TLSGPFile = 0x02
static const char Req_TLSLogin = 0x04
static const char Req_TLSSess = 0x08
static const char Req_TLSTPC = 0x10
static struct XrdXrootdProtocol::RD_Table Route [RD_Num]
static struct XrdXrootdProtocol::RC_Table RouteClient
static XrdXrootdXPath RPList
static XrdXrootdXPath RQList
static int RQLxist = 0
static XrdSchedulerSched
static XrdXrootdStatsSI
static RAtomic_int srvrAioOps = {0}
static char tlsCap = 0
static XrdTlsContexttlsCtx = 0
static char tlsNot = 0
static int tlsPort = 0
static const char * TraceID = "Protocol"
static int usxMaxNsz = kXR_faMaxNlen
static int usxMaxVsz = kXR_faMaxVlen
static char * usxParms = 0
static int Window
static XrdXrootdXPath XPList

Detailed Description

Definition at line 52 of file XrdXrootdTransit.hh.

Constructor & Destructor Documentation

◆ XrdXrootdTransit()

XrdXrootdTransit::XrdXrootdTransit ( )
inline

Constructor & Destructor.

Definition at line 159 of file XrdXrootdTransit.hh.

159 : TranLink(this),
160 respJob(this, &XrdXrootdTransit::Proceed,
161 "Transit proceed"),
162 waitJob(this, &XrdXrootdTransit::Redrive,
163 "Transit redrive")
164 {}
void Redrive()
Redrive a request after a wait.
void Proceed()
Resume processing after a waitresp completion.

References XrdXrootdTransit(), Proceed(), and Redrive().

Referenced by XrdXrootdTransit(), and Alloc().

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◆ ~XrdXrootdTransit()

virtual XrdXrootdTransit::~XrdXrootdTransit ( )
inlinevirtual

Definition at line 165 of file XrdXrootdTransit.hh.

165{}

Member Function Documentation

◆ Alloc()

XrdXrootdTransit * XrdXrootdTransit::Alloc ( XrdXrootd::Bridge::Result * respP,
XrdLink * linkP,
XrdSecEntity * seceP,
const char * nameP,
const char * protP )
static

Get a new transit object.

Definition at line 77 of file XrdXrootdTransit.cc.

83{
85
86// Simply return a new transit object masquerading as a bridge
87//
88 if (!(xp = TranStack.Pop())) xp = new XrdXrootdTransit();
89 xp->Init(rsltP, linkP, seceP, nameP, protP);
90 return xp;
91}
static void Init(XrdScheduler *schedP, int qMax, int qTTL)
Perform one-time initialization.
XrdXrootdTransit()
Constructor & Destructor.

References XrdXrootdTransit(), and Init().

Referenced by XrdXrootd::Bridge::Login().

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◆ Attn()

int XrdXrootdTransit::Attn ( XrdLink * lP,
short * theSID,
int rcode,
const struct iovec * ioVec,
int ioNum,
int ioLen )
static

Handle attention response (i.e. async response)

Definition at line 97 of file XrdXrootdTransit.cc.

99{
100 XrdXrootdTransPend *tP;
101
102// Find the request
103//
104 if (!(tP = XrdXrootdTransPend::Remove(lP, *theSID)))
105 {TRACE(REQ, "Unable to find request for " <<lP->ID <<" sid=" <<*theSID);
106 return 0;
107 }
108
109// Resume the request as we have been waiting for the response.
110//
111 return tP->bridge->AttnCont(tP, rcode, ioV, ioN, ioL);
112}
#define TRACE(act, x)
Definition XrdTrace.hh:63
static XrdXrootdTransPend * Remove(XrdLink *lP, short sid)
XrdXrootdTransit * bridge

References XrdXrootdTransPend::bridge, XrdLink::ID, XrdXrootdTransPend::Remove(), and TRACE.

Referenced by XrdXrootdResponse::Send().

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◆ Disc()

bool XrdXrootdTransit::Disc ( )
virtual

Handle dismantlement.

Implements XrdXrootd::Bridge.

Definition at line 162 of file XrdXrootdTransit.cc.

163{
164 char buff[128];
165 int rc;
166
167// We do not allow disconnection while we are active
168//
169 AtomicBeg(runMutex);
170 rc = AtomicInc(runStatus);
171 AtomicEnd(runMutex);
172 if (rc) return false;
173
174// Reconnect original protocol to the link
175//
176 Link->setProtocol(realProt);
177
178// Now we need to recycle our xrootd part
179//
180 sprintf(buff, "%s disconnection", pName);
181 XrdXrootdProtocol::Recycle(Link, time(0)-cTime, buff);
182
183// Now just free up our object.
184//
185 TranStack.Push(&TranLink);
186 return true;
187}
#define AtomicInc(x)
#define AtomicBeg(Mtx)
#define AtomicEnd(Mtx)
void Recycle(XrdLink *lp, int consec, const char *reason) override

References AtomicBeg, AtomicEnd, AtomicInc, XrdXrootdProtocol::Link, and XrdXrootdProtocol::Recycle().

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◆ Init()

void XrdXrootdTransit::Init ( XrdScheduler * schedP,
int qMax,
int qTTL )
static

Perform one-time initialization.

Definition at line 216 of file XrdXrootdTransit.cc.

217{
218 TranStack.Set(schedP, &XrdXrootdTrace, TRACE_MEM);
219 TranStack.Set(qMax, qTTL);
220}
XrdOucTrace * XrdXrootdTrace
#define TRACE_MEM
Definition XrdTrace.hh:38

References TRACE_MEM, XrdJob::XrdScheduler, and XrdXrootdTrace.

Referenced by Alloc(), and XrdXrootdProtocol::Configure().

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◆ Proceed()

void XrdXrootdTransit::Proceed ( )

Resume processing after a waitresp completion.

Definition at line 334 of file XrdXrootdTransit.cc.

335{
336 int rc;
337
338// If we were interrupted in a reinvoke state, resume that state.
339//
340 if (reInvoke) rc = Process(Link);
341 else rc = 0;
342
343// Handle ending status
344//
345 if (rc >= 0) Link->Enable();
346 else if (rc != -EINPROGRESS) Link->Close();
347}
int Process(XrdLink *lp)
Handle link activation (replaces parent activation).

References XrdXrootdProtocol::Link, and Process().

Referenced by XrdXrootdTransit().

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◆ Process()

int XrdXrootdTransit::Process ( XrdLink * lp)
virtual

Handle link activation (replaces parent activation).

Reimplemented from XrdXrootdProtocol.

Definition at line 353 of file XrdXrootdTransit.cc.

354{
355 int rc;
356
357// This entry is serialized via link processing and data is now available.
358// One of the following will be returned.
359//
360// < 0 -> Stop getting requests,
361// -EINPROGRESS leave link disabled but otherwise all is well
362// -n Error, disable and close the link
363// = 0 -> OK, get next request, if allowed, o/w enable the link
364// > 0 -> Slow link, stop getting requests and enable the link
365//
366
367// Reflect data is present to the underlying protocol and if Run() has been
368// called we need to dispatch that request. This may be iterative.
369//
370do{rc = realProt->Process((reInvoke ? 0 : lp));
371 if (rc >= 0 && runStatus)
372 {reInvoke = (rc == 0);
373 if (runError) rc = Fatal(rc);
374 else {runDone = false;
376 if (rc >= 0)
377 {if (runWait) rc = -EINPROGRESS;
378 if (!runDone) return rc;
379 AtomicBeg(runMutex);
380 AtomicZAP(runStatus);
381 AtomicEnd(runMutex);
382 }
383 }
384 } else reInvoke = false;
385 } while(rc >= 0 && reInvoke);
386
387// Make sure that we indicate that we are no longer active
388//
389 if (runStatus)
390 {AtomicBeg(runMutex);
391 AtomicZAP(runStatus);
392 AtomicEnd(runMutex);
393 }
394
395// All done
396//
397 return (rc ? rc : 1);
398}
#define AtomicZAP(x)
int(XrdXrootdProtocol::* Resume)()
int Process(XrdLink *lp) override

References AtomicBeg, AtomicEnd, AtomicZAP, XrdXrootdProtocol::Process(), XrdXrootdProtocol::Process2(), and XrdXrootdProtocol::Resume.

Referenced by Proceed().

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◆ Recycle()

void XrdXrootdTransit::Recycle ( XrdLink * lp,
int consec,
const char * reason )
virtual

Handle link shutdown.

Reimplemented from XrdXrootdProtocol.

Definition at line 404 of file XrdXrootdTransit.cc.

405{
406
407// Set ourselves as active so we can't get more requests
408//
409 AtomicBeg(runMutex);
410 AtomicInc(runStatus);
411 AtomicEnd(runMutex);
412
413// If we were active then we will need to quiesce before dismantling ourselves.
414// Note that Recycle() can only be called if the link is enabled. So, this bit
415// of code is improbable but we check it anyway.
416//
417 if (runWait > 0) Sched->Cancel(&waitJob);
418
419// First we need to recycle the real protocol
420//
421 if (realProt) realProt->Recycle(lp, consec, reason);
422
423// Now we need to recycle our xrootd part
424//
425 XrdXrootdProtocol::Recycle(lp, consec, reason);
426
427// Release the argument buffer
428//
429 if (runArgs) {free(runArgs); runArgs = 0;}
430
431// Delete all pending requests
432//
434
435// Now just free up our object.
436//
437 TranStack.Push(&TranLink);
438}
static XrdScheduler * Sched
static void Clear(XrdXrootdTransit *trP)

References AtomicBeg, AtomicEnd, AtomicInc, XrdXrootdTransPend::Clear(), XrdXrootdProtocol::Recycle(), and XrdXrootdProtocol::Sched.

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◆ Redrive()

void XrdXrootdTransit::Redrive ( )

Redrive a request after a wait.

Definition at line 444 of file XrdXrootdTransit.cc.

445{
446 static int eCode = htonl(kXR_NoMemory);
447 static char eText[] = "Insufficent memory to re-issue request";
448 static struct iovec ioV[] = {{(char *)&eCode,sizeof(eCode)},
449 {(char *)&eText,sizeof(eText)}};
450 int rc;
451
452// Update wait statistics
453//
454 runWTot += runWait;
455 runWait = 0;
456
457// While we are running asynchronously, there is no way that this object can
458// be deleted while a timer is outstanding as the link has been disabled. So,
459// we can reissue the request with little worry.
460//
461 if (!runALen || RunCopy(runArgs, runALen)) {
462 do{rc = Process2();
463 if (rc == 0) {
464 rc = realProt->Process(NULL);
465 }
466 if (runStatus)
467 {AtomicBeg(runMutex);
468 AtomicZAP(runStatus);
469 AtomicEnd(runMutex);
470 }
471 } while((rc == 0) && !runError && !runWait);
472 }
473 else rc = Send(kXR_error, ioV, 2, 0);
474
475// Defer the request if need be
476//
477 if (rc >= 0 && runWait) return;
478 runWTot = 0;
479
480// Indicate we are no longer active
481//
482 if (runStatus)
483 {AtomicBeg(runMutex);
484 AtomicZAP(runStatus);
485 AtomicEnd(runMutex);
486 }
487
488// If the link needs to be terminated, terminate the link. Otherwise, we can
489// enable the link for new requests at this point.
490//
491 if (rc < 0) Link->Close();
492 else Link->Enable();
493}
@ kXR_NoMemory
Definition XProtocol.hh:998
@ kXR_error
Definition XProtocol.hh:903
int Send(int rcode, const struct iovec *ioVec, int ioNum, int ioLen)
Handle request data response.

References AtomicBeg, AtomicEnd, AtomicZAP, kXR_error, kXR_NoMemory, XrdXrootdProtocol::Link, XrdXrootdProtocol::Process2(), and Send().

Referenced by XrdXrootdTransit().

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◆ ReqTable()

const char * XrdXrootdTransit::ReqTable ( )
static

Initialize the valid request table.

Definition at line 501 of file XrdXrootdTransit.cc.

502{
503 static char rTab[kXR_truncate-kXR_auth+1];
504
505// Initialize the table
506//
507 memset(rTab, 0, sizeof(rTab));
508 rTab[KXR_INDEX(kXR_chmod)] = 1;
509 rTab[KXR_INDEX(kXR_close)] = 1;
510 rTab[KXR_INDEX(kXR_dirlist)] = 1;
511 rTab[KXR_INDEX(kXR_locate)] = 1;
512 rTab[KXR_INDEX(kXR_mkdir)] = 1;
513 rTab[KXR_INDEX(kXR_mv)] = 1;
514 rTab[KXR_INDEX(kXR_open)] = 1;
515 rTab[KXR_INDEX(kXR_prepare)] = 1;
516 rTab[KXR_INDEX(kXR_protocol)] = 1;
517 rTab[KXR_INDEX(kXR_query)] = 1;
518 rTab[KXR_INDEX(kXR_read)] = 2;
519 rTab[KXR_INDEX(kXR_readv)] = 2;
520 rTab[KXR_INDEX(kXR_rm)] = 1;
521 rTab[KXR_INDEX(kXR_rmdir)] = 1;
522 rTab[KXR_INDEX(kXR_set)] = 1;
523 rTab[KXR_INDEX(kXR_stat)] = 1;
524 rTab[KXR_INDEX(kXR_statx)] = 1;
525 rTab[KXR_INDEX(kXR_sync)] = 1;
526 rTab[KXR_INDEX(kXR_truncate)] = 1;
527 rTab[KXR_INDEX(kXR_write)] = 2;
528
529// Now return the address
530//
531 return rTab;
532}
@ kXR_read
Definition XProtocol.hh:125
@ kXR_open
Definition XProtocol.hh:122
@ kXR_readv
Definition XProtocol.hh:137
@ kXR_mkdir
Definition XProtocol.hh:120
@ kXR_sync
Definition XProtocol.hh:128
@ kXR_chmod
Definition XProtocol.hh:114
@ kXR_dirlist
Definition XProtocol.hh:116
@ kXR_rm
Definition XProtocol.hh:126
@ kXR_query
Definition XProtocol.hh:113
@ kXR_write
Definition XProtocol.hh:131
@ kXR_auth
Definition XProtocol.hh:112
@ kXR_set
Definition XProtocol.hh:130
@ kXR_rmdir
Definition XProtocol.hh:127
@ kXR_statx
Definition XProtocol.hh:134
@ kXR_truncate
Definition XProtocol.hh:140
@ kXR_protocol
Definition XProtocol.hh:118
@ kXR_mv
Definition XProtocol.hh:121
@ kXR_stat
Definition XProtocol.hh:129
@ kXR_locate
Definition XProtocol.hh:139
@ kXR_close
Definition XProtocol.hh:115
@ kXR_prepare
Definition XProtocol.hh:133
#define KXR_INDEX(x)

References kXR_auth, kXR_chmod, kXR_close, kXR_dirlist, KXR_INDEX, kXR_locate, kXR_mkdir, kXR_mv, kXR_open, kXR_prepare, kXR_protocol, kXR_query, kXR_read, kXR_readv, kXR_rm, kXR_rmdir, kXR_set, kXR_stat, kXR_statx, kXR_sync, kXR_truncate, and kXR_write.

◆ Run()

bool XrdXrootdTransit::Run ( const char * xreqP,
char * xdataP = 0,
int xdataL = 0 )
virtual

Inject an xrootd request into the protocol stack.

Parameters
xreqPxrootd request header
xdataPxrootd request data (optional)
xdataLxrootd request data length

Implements XrdXrootd::Bridge.

Definition at line 565 of file XrdXrootdTransit.cc.

566{
567 int movLen, rc;
568
569// We do not allow re-entry if we are curently processing a request.
570// It will be reset, as need, when a response is effected.
571//
572 AtomicBeg(runMutex);
573 rc = AtomicInc(runStatus);
574 AtomicEnd(runMutex);
575 if (rc)
576 {TRACEP(REQ, "Bridge request failed due to re-entry");
577 return false;
578 }
579
580// Copy the request header
581//
582 memcpy((void *)&Request, (void *)xreqP, sizeof(Request));
583
584// Validate that we can actually handle this request
585//
586 Request.header.requestid = ntohs(Request.header.requestid);
587 if (Request.header.requestid & 0x8000
588 || Request.header.requestid > static_cast<kXR_unt16>(kXR_truncate)
589 || !reqTab[Request.header.requestid - kXR_auth])
590 {TRACEP(REQ, "Unsupported bridge request");
591 return Fail(kXR_Unsupported, "Unsupported bridge request");
592 }
593
594// Validate the data length
595//
596 Request.header.dlen = ntohl(Request.header.dlen);
597 if (Request.header.dlen < 0)
598 {TRACEP(REQ, "Invalid request data length");
599 return Fail(kXR_ArgInvalid, "Invalid request data length");
600 }
601
602// Copy the stream id and trace this request
603//
604 Response.Set(Request.header.streamid);
605 TRACEP(REQ, "Bridge req=" <<Request.header.requestid
606 <<" dlen=" <<Request.header.dlen <<" blen=" <<xdataL);
607
608// If this is a write request, we will need to do a lot more
609//
610 if (Request.header.requestid == kXR_write) return ReqWrite(xdataP, xdataL);
611
612// Obtain any needed buffer and handle any existing data arguments. Also, we
613// need to keep a shadow copy of the request arguments should we get a wait
614// and will need to re-issue the request (the server mangles the args).
615//
616 if (Request.header.dlen)
617 {movLen = (xdataL < Request.header.dlen ? xdataL : Request.header.dlen);
618 if (!RunCopy(xdataP, movLen)) return true;
619 if (!runArgs || movLen > runABsz)
620 {if (runArgs) free(runArgs);
621 if (!(runArgs = (char *)malloc(movLen)))
622 {TRACEP(REQ, "Failed to allocate memory");
623 return Fail(kXR_NoMemory, "Insufficient memory");
624 }
625 runABsz = movLen;
626 }
627 memcpy(runArgs, xdataP, movLen); runALen = movLen;
628 if ((myBlen = Request.header.dlen - movLen))
629 {myBuff = argp->buff + movLen;
631 return true;
632 }
633 } else runALen = 0;
634
635// If we have all the data, indicate request accepted.
636//
637 runError = 0;
638 Resume = 0;
639 return true;
640}
@ kXR_ArgInvalid
Definition XProtocol.hh:990
@ kXR_Unsupported
unsigned short kXR_unt16
Definition XPtypes.hh:67
#define TRACEP(act, x)
XrdXrootdResponse Response

References XrdXrootdProtocol::argp, AtomicBeg, AtomicEnd, AtomicInc, kXR_ArgInvalid, kXR_auth, kXR_NoMemory, kXR_truncate, kXR_Unsupported, kXR_write, XrdXrootdProtocol::myBlen, XrdXrootdProtocol::myBuff, XrdXrootdProtocol::Process2(), XrdXrootdProtocol::Request, XrdXrootdProtocol::Response, XrdXrootdProtocol::Resume, and TRACEP.

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◆ Send() [1/3]

int XrdXrootdTransit::Send ( int rcode,
const struct iovec * ioVec,
int ioNum,
int ioLen )

Handle request data response.

Definition at line 669 of file XrdXrootdTransit.cc.

670{
671 XrdXrootd::Bridge::Context rInfo(Link, Request.header.streamid,
672 Request.header.requestid);
673 const char *eMsg;
674 int rc;
675 bool aOK;
676
677// Invoke the result object (we initially assume this is the final result)
678//
679 runDone = true;
680 switch(rcode)
681 {case kXR_error:
682 rc = XRD_GETNUM(ioV[0].iov_base);
683 eMsg = (ioN < 2 ? "" : (const char *)ioV[1].iov_base);
684 if (wBuff) respObj->Free(rInfo, wBuff, wBLen);
685 aOK = respObj->Error(rInfo, rc, eMsg);
686 break;
687 case kXR_ok:
688 if (wBuff) respObj->Free(rInfo, wBuff, wBLen);
689 aOK = (ioN ? respObj->Data(rInfo, ioV, ioN, ioL, true)
690 : respObj->Done(rInfo));
691 break;
692 case kXR_oksofar:
693 aOK = respObj->Data(rInfo, ioV, ioN, ioL, false);
694 runDone = false;
695 break;
696 case kXR_redirect:
697 if (wBuff) respObj->Free(rInfo, wBuff, wBLen);
698 rc = XRD_GETNUM(ioV[0].iov_base);
699 aOK = respObj->Redir(rInfo,rc,(const char *)ioV[1].iov_base);
700 break;
701 case kXR_wait:
702 return Wait(rInfo, ioV, ioN, ioL);
703 break;
704 case kXR_waitresp:
705 runDone = false;
706 return WaitResp(rInfo, ioV, ioN, ioL);
707 break;
708 default: if (wBuff) respObj->Free(rInfo, wBuff, wBLen);
709 aOK = respObj->Error(rInfo, kXR_ServerError,
710 "internal logic error");
711 break;
712 };
713
714// All done
715//
716 return (aOK ? 0 : -1);
717}
@ kXR_ServerError
@ kXR_waitresp
Definition XProtocol.hh:906
@ kXR_redirect
Definition XProtocol.hh:904
@ kXR_oksofar
Definition XProtocol.hh:900
@ kXR_ok
Definition XProtocol.hh:899
@ kXR_wait
Definition XProtocol.hh:905
#define eMsg(x)
#define XRD_GETNUM(x)

References eMsg, kXR_error, kXR_ok, kXR_oksofar, kXR_redirect, kXR_ServerError, kXR_wait, kXR_waitresp, XrdXrootdProtocol::Link, XrdXrootdProtocol::Request, and XRD_GETNUM.

Referenced by Redrive().

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◆ Send() [2/3]

int XrdXrootdTransit::Send ( long long offset,
int dlen,
int fdnum )

Handle request sendfile response.

Definition at line 721 of file XrdXrootdTransit.cc.

722{
723 XrdXrootdTransSend sfInfo(Link, Request.header.streamid,
724 Request.header.requestid,
725 offset, dlen, fdnum);
726
727// Effect callback (this is always a final result)
728//
729 runDone = true;
730 return (respObj->File(sfInfo, dlen) ? 0 : -1);
731}

References XrdXrootdProtocol::Link, and XrdXrootdProtocol::Request.

◆ Send() [3/3]

int XrdXrootdTransit::Send ( XrdOucSFVec * sfvec,
int sfvnum,
int dlen )

Definition at line 735 of file XrdXrootdTransit.cc.

736{
737 XrdXrootdTransSend sfInfo(Link, Request.header.streamid,
738 Request.header.requestid,
739 sfvec, sfvnum, dlen);
740
741// Effect callback (this is always a final result)
742//
743 runDone = true;
744 return (respObj->File(sfInfo, dlen) ? 0 : -1);
745}

References XrdXrootdProtocol::Link, and XrdXrootdProtocol::Request.

◆ setSF()

int XrdXrootdTransit::setSF ( kXR_char * fhandle,
bool seton = false )
inlinevirtual

Set sendfile() enablement.

Implements XrdXrootd::Bridge.

Definition at line 145 of file XrdXrootdTransit.hh.

146 {return SetSF(fhandle, seton);}
int SetSF(kXR_char *fhandle, bool seton=false)

References XrdXrootdProtocol::SetSF().

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◆ SetWait()

void XrdXrootdTransit::SetWait ( int wtime,
bool notify = false )
inlinevirtual

Set maximum wait time.

Implements XrdXrootd::Bridge.

Definition at line 152 of file XrdXrootdTransit.hh.

153 {runWMax = wtime; runWCall = notify;}

The documentation for this class was generated from the following files: