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XrdClFileSystem.cc
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XrdClFileSystem.cc
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//------------------------------------------------------------------------------
// Copyright (c) 2011-2014 by European Organization for Nuclear Research (CERN)
// Author: Lukasz Janyst <ljanyst@cern.ch>
//------------------------------------------------------------------------------
// This file is part of the XRootD software suite.
//
// XRootD is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// XRootD is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with XRootD. If not, see <http://www.gnu.org/licenses/>.
//
// In applying this licence, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
//------------------------------------------------------------------------------
#include "XrdCl/XrdClMessageUtils.hh"
#include "XrdCl/XrdClFileSystem.hh"
#include "XrdCl/XrdClDefaultEnv.hh"
#include "XrdCl/XrdClLog.hh"
#include "XrdCl/XrdClConstants.hh"
#include "XrdCl/XrdClMessage.hh"
#include "XrdCl/XrdClXRootDResponses.hh"
#include "XrdCl/XrdClRequestSync.hh"
#include "XrdCl/XrdClXRootDTransport.hh"
#include "XrdCl/XrdClForkHandler.hh"
#include "XrdCl/XrdClPlugInInterface.hh"
#include "XrdCl/XrdClPlugInManager.hh"
#include "XrdCl/XrdClLocalFileTask.hh"
#include "XrdCl/XrdClZipListHandler.hh"
#include "XrdSys/XrdSysPthread.hh"
#include <sys/stat.h>
#include <memory>
namespace
{
static struct LocalFS_t
{
LocalFS_t() : jmngr( XrdCl::DefaultEnv::GetPostMaster()->GetJobManager() )
{
}
XrdCl::XRootDStatus Stat( const std::string &path,
XrdCl::ResponseHandler *handler,
uint16_t timeout )
{
using namespace XrdCl;
Log *log = DefaultEnv::GetLog();
struct stat ssp;
if( stat( path.c_str(), &ssp ) == -1 )
{
log->Error( FileMsg, "Stat: failed: %s", strerror( errno ) );
XRootDStatus *error = new XRootDStatus( stError, errErrorResponse,
XProtocol::mapError( errno ),
strerror( errno ) );
return QueueTask( error, 0, handler );
}
// TODO support other mode options
uint32_t flags = S_ISDIR( ssp.st_mode ) ? kXR_isDir : 0;
std::ostringstream data;
data << ssp.st_dev << " " << ssp.st_size << " " << flags << " "
<< ssp.st_mtime;
log->Debug( FileMsg, data.str().c_str() );
StatInfo *statInfo = new StatInfo();
if( !statInfo->ParseServerResponse( data.str().c_str() ) )
{
log->Error( FileMsg, "Stat: ParseServerResponse failed." );
delete statInfo;
return QueueTask( new XRootDStatus( stError, errErrorResponse, kXR_FSError ),
0, handler );
}
AnyObject *resp = new AnyObject();
resp->Set( statInfo );
return QueueTask( new XRootDStatus(), resp, handler );
}
//------------------------------------------------------------------------
// QueueTask - queues error/success tasks for all operations.
// Must always return stOK.
// Is always creating the same HostList containing only localhost.
//------------------------------------------------------------------------
XrdCl::XRootDStatus QueueTask( XrdCl::XRootDStatus *st, XrdCl::AnyObject *resp,
XrdCl::ResponseHandler *handler )
{
using namespace XrdCl;
// if it is simply the sync handler we can release the semaphore
// and return there is no need to execute this in the thread-pool
SyncResponseHandler *syncHandler =
dynamic_cast<SyncResponseHandler*>( handler );
if( syncHandler )
{
syncHandler->HandleResponse( st, resp );
return XRootDStatus();
}
LocalFileTask *task = new LocalFileTask( st, resp, 0, handler );
jmngr->QueueJob( task );
return XRootDStatus();
}
private:
XrdCl::JobManager *jmngr;
} LocalFS;
//----------------------------------------------------------------------------
// Get delimiter for the opaque info
//----------------------------------------------------------------------------
char GetCgiDelimiter( bool &hasCgi )
{
if( !hasCgi )
{
hasCgi = true;
return '?';
}
return '&';
}
//----------------------------------------------------------------------------
// Filters out client specific CGI
//----------------------------------------------------------------------------
std::string FilterXrdClCgi( const std::string &path )
{
// first check if there's an opaque info at all
size_t pos = path.find( '?' );
if( pos == std::string::npos )
return path;
std::string filteredPath = path.substr( 0 , pos );
std::string cgi = path.substr( pos + 1 );
bool hasCgi = false;
pos = 0;
size_t xrdcl = std::string::npos;
do
{
xrdcl = cgi.find( "xrdcl.", pos );
if( xrdcl == std::string:: npos )
{
filteredPath += GetCgiDelimiter( hasCgi );
filteredPath += cgi.substr( pos );
pos = cgi.size();
}
else
{
if( xrdcl != pos )
{
filteredPath += GetCgiDelimiter( hasCgi );
filteredPath += cgi.substr( pos, xrdcl - 1 - pos );
}
pos = cgi.find( '&', xrdcl );
if( pos != std::string::npos )
++pos;
}
}
while( pos < cgi.size() && pos != std::string::npos );
return filteredPath;
}
//----------------------------------------------------------------------------
//! Wrapper class used to delete FileSystem object
//----------------------------------------------------------------------------
class DeallocFSHandler: public XrdCl::ResponseHandler
{
public:
//------------------------------------------------------------------------
// Constructor and destructor
//------------------------------------------------------------------------
DeallocFSHandler( XrdCl::FileSystem *fs, ResponseHandler *userHandler ):
pFS(fs), pUserHandler(userHandler) {}
virtual ~DeallocFSHandler()
{
delete pFS;
}
//------------------------------------------------------------------------
// Handle the response
//------------------------------------------------------------------------
virtual void HandleResponse( XrdCl::XRootDStatus *status,
XrdCl::AnyObject *response )
{
pUserHandler->HandleResponse(status, response);
delete this;
}
private:
XrdCl::FileSystem *pFS;
ResponseHandler *pUserHandler;
};
//----------------------------------------------------------------------------
// Deep locate handler
//----------------------------------------------------------------------------
class DeepLocateHandler: public XrdCl::ResponseHandler
{
public:
//------------------------------------------------------------------------
// Constructor
//------------------------------------------------------------------------
DeepLocateHandler( XrdCl::ResponseHandler *handler,
const std::string &path,
XrdCl::OpenFlags::Flags flags,
time_t expires ):
pFirstTime( true ),
pPartial( false ),
pOutstanding( 1 ),
pHandler( handler ),
pPath( path ),
pFlags( flags ),
pExpires(expires)
{
pLocations = new XrdCl::LocationInfo();
}
//------------------------------------------------------------------------
// Destructor
//------------------------------------------------------------------------
~DeepLocateHandler()
{
delete pLocations;
}
//------------------------------------------------------------------------
// Handle the response
//------------------------------------------------------------------------
virtual void HandleResponse( XrdCl::XRootDStatus *status,
XrdCl::AnyObject *response )
{
XrdSysMutexHelper scopedLock( pMutex );
using namespace XrdCl;
Log *log = DefaultEnv::GetLog();
--pOutstanding;
//----------------------------------------------------------------------
// We've got an error, react accordingly
//----------------------------------------------------------------------
if( !status->IsOK() )
{
log->Dump( FileSystemMsg, "[0x%x@DeepLocate(%s)] Got error "
"response: %s", this, pPath.c_str(),
status->ToStr().c_str() );
//--------------------------------------------------------------------
// We have failed with the first request
//--------------------------------------------------------------------
if( pFirstTime )
{
log->Debug( FileSystemMsg, "[0x%x@DeepLocate(%s)] Failed to get "
"the initial location list: %s", this, pPath.c_str(),
status->ToStr().c_str() );
pHandler->HandleResponse( status, response );
scopedLock.UnLock();
delete this;
return;
}
pPartial = true;
//--------------------------------------------------------------------
// We have no more outstanding requests, so let give to the client
// what we have
//--------------------------------------------------------------------
if( !pOutstanding )
{
log->Debug( FileSystemMsg, "[0x%x@DeepLocate(%s)] No outstanding "
"requests, give out what we've got", this,
pPath.c_str() );
scopedLock.UnLock();
HandleFinalResponse();
}
delete status;
return;
}
pFirstTime = false;
//----------------------------------------------------------------------
// Extract the answer
//----------------------------------------------------------------------
LocationInfo *info = 0;
response->Get( info );
LocationInfo::Iterator it;
log->Dump( FileSystemMsg, "[0x%x@DeepLocate(%s)] Got %d locations",
this, pPath.c_str(), info->GetSize() );
for( it = info->Begin(); it != info->End(); ++it )
{
//--------------------------------------------------------------------
// Add the location to the list
//--------------------------------------------------------------------
if( it->IsServer() )
{
pLocations->Add( *it );
continue;
}
//--------------------------------------------------------------------
// Ask the manager for the location of servers
//--------------------------------------------------------------------
if( it->IsManager() )
{
FileSystem *fs = new FileSystem( it->GetAddress() );
if( fs->Locate( pPath, pFlags, new DeallocFSHandler(fs, this), pExpires-::time(0)).IsOK() )
++pOutstanding;
}
}
//----------------------------------------------------------------------
// Clean up and check if we have anything else to do
//----------------------------------------------------------------------
delete response;
delete status;
if( !pOutstanding )
{
scopedLock.UnLock();
HandleFinalResponse();
}
}
//------------------------------------------------------------------------
// Build the response for the client
//------------------------------------------------------------------------
void HandleFinalResponse()
{
using namespace XrdCl;
//----------------------------------------------------------------------
// Nothing found
//----------------------------------------------------------------------
if( !pLocations->GetSize() )
{
pHandler->HandleResponse( new XRootDStatus( stError, errErrorResponse,
kXR_NotFound,
"No valid location found" ),
0 );
}
//----------------------------------------------------------------------
// We return an answer
//----------------------------------------------------------------------
else
{
AnyObject *obj = new AnyObject();
obj->Set( pLocations );
pLocations = 0;
XRootDStatus *st = new XRootDStatus();
if( pPartial ) st->code = suPartial;
pHandler->HandleResponse( st, obj );
}
delete this;
}
private:
bool pFirstTime;
bool pPartial;
uint16_t pOutstanding;
XrdCl::ResponseHandler *pHandler;
XrdCl::LocationInfo *pLocations;
std::string pPath;
XrdCl::OpenFlags::Flags pFlags;
time_t pExpires;
XrdSysMutex pMutex;
};
//----------------------------------------------------------------------------
// Handle stat results for a dirlist request
//----------------------------------------------------------------------------
class DirListStatHandler: public XrdCl::ResponseHandler
{
public:
//------------------------------------------------------------------------
// Constructor
//------------------------------------------------------------------------
DirListStatHandler( XrdCl::DirectoryList *list,
uint32_t index,
XrdCl::RequestSync *sync ):
pList( list ),
pIndex( index ),
pSync( sync )
{
}
//------------------------------------------------------------------------
// Check if we were successful and if so put the StatInfo object
// in the appropriate entry info
//------------------------------------------------------------------------
virtual void HandleResponse( XrdCl::XRootDStatus *status,
XrdCl::AnyObject *response )
{
if( !status->IsOK() )
{
delete status;
pSync->TaskDone( false );
delete this;
return;
}
XrdCl::StatInfo *info = 0;
response->Get( info );
response->Set( (char*) 0 );
pList->At( pIndex )->SetStatInfo( info );
delete status;
delete response;
pSync->TaskDone();
delete this;
}
private:
XrdCl::DirectoryList *pList;
uint32_t pIndex;
XrdCl::RequestSync *pSync;
};
//----------------------------------------------------------------------------
// Recursive dirlist common context for all handlers
//----------------------------------------------------------------------------
struct RecursiveDirListCtx
{
RecursiveDirListCtx( const XrdCl::URL &url, const std::string &path,
XrdCl::DirListFlags::Flags flags,
XrdCl::ResponseHandler *handler, time_t expires ) :
pending( 1 ), dirList( new XrdCl::DirectoryList() ),
expires( expires ), handler( handler ), flags( flags ),
fs( new XrdCl::FileSystem( url ) )
{
dirList->SetParentName( path );
}
~RecursiveDirListCtx()
{
delete dirList;
delete fs;
}
XrdCl::XRootDStatus status;
int pending;
XrdCl::DirectoryList *dirList;
time_t expires;
XrdCl::ResponseHandler *handler;
XrdCl::DirListFlags::Flags flags;
XrdCl::FileSystem *fs;
XrdSysMutex mtx;
};
//----------------------------------------------------------------------------
// Exception for a recursive dirlist handler
//----------------------------------------------------------------------------
struct RecDirLsErr
{
RecDirLsErr() : status( 0 ) { }
RecDirLsErr( const XrdCl::XRootDStatus &st ) :
status( new XrdCl::XRootDStatus( st ) )
{
}
XrdCl::XRootDStatus *status;
};
//----------------------------------------------------------------------------
// Handle results for a recursive dirlist request
//----------------------------------------------------------------------------
class RecursiveDirListHandler: public XrdCl::ResponseHandler
{
public:
RecursiveDirListHandler( const XrdCl::URL &url,
const std::string &path,
XrdCl::DirListFlags::Flags flags,
XrdCl::ResponseHandler *handler,
time_t timeout )
{
time_t expires = 0;
if( timeout )
expires = ::time( 0 ) + timeout;
pCtx = new RecursiveDirListCtx( url, path, flags,
handler, expires );
}
RecursiveDirListHandler( RecursiveDirListCtx *ctx ) : pCtx( ctx )
{
}
virtual void HandleResponse( XrdCl::XRootDStatus *status,
XrdCl::AnyObject *response )
{
using namespace XrdCl;
XrdSysMutexHelper scoped( pCtx->mtx );
try
{
// decrement the number of pending DieLists
--pCtx->pending;
// check if the job hasn't failed somewhere else,
// if yes we just give up
if( !pCtx->status.IsOK() )
throw RecDirLsErr();
// check if we failed, if yes update the global status
// for all call-backs and call the user handler
if( !status->IsOK() )
throw RecDirLsErr( *status );
// check if we got a response ...
if( !response )
throw RecDirLsErr( XRootDStatus( stError, errInternal ) );
// get the response
DirectoryList *dirList = 0;
response->Get( dirList );
// check if the response is not empty ...
if( !dirList )
throw RecDirLsErr( XRootDStatus( stError, errInternal ) );
std::string parent = pCtx->dirList->GetParentName();
DirectoryList::Iterator itr;
for( itr = dirList->Begin(); itr != dirList->End(); ++itr )
{
DirectoryList::ListEntry *entry = *itr;
StatInfo *info = entry->GetStatInfo();
if( !info )
throw RecDirLsErr( XRootDStatus( stError, errNotSupported ) );
std::string path = dirList->GetParentName() + entry->GetName();
// check the prefix
if( path.find( parent ) != 0 )
throw RecDirLsErr( XRootDStatus( stError, errInternal ) );
// add new entry to the result
path = path.substr( parent.size() );
entry->SetStatInfo( 0 ); // StatInfo is no longer owned by dirList
DirectoryList::ListEntry *e =
new DirectoryList::ListEntry( entry->GetHostAddress(), path, info );
pCtx->dirList->Add( e );
// if it's a directory do a recursive call
if( info->TestFlags( StatInfo::IsDir ) )
{
// bump the pending counter
++pCtx->pending;
// switch of the recursive flag, we will
// provide the respective handler ourself,
// make sure that stat is on
DirListFlags::Flags flags = ( pCtx->flags & (~DirListFlags::Recursive) )
| DirListFlags::Stat;
// the recursive dir list handler
RecursiveDirListHandler *handler = new RecursiveDirListHandler( pCtx );
// timeout
time_t timeout = 0;
if( pCtx->expires )
{
timeout = pCtx->expires - ::time( 0 );
if( timeout <= 0 )
throw RecDirLsErr( XRootDStatus( stError, errOperationExpired ) );
}
// send the request
XRootDStatus st = pCtx->fs->DirList( parent + path, flags, handler, timeout );
if( !st.IsOK() )
throw RecDirLsErr( st );
}
}
if( pCtx->pending == 0 )
{
AnyObject *resp = new AnyObject();
resp->Set( pCtx->dirList );
pCtx->dirList = 0; // dirList is no longer owned by pCtx
pCtx->handler->HandleResponse( new XRootDStatus(), resp );
}
}
catch( RecDirLsErr &ex )
{
if( ex.status )
{
pCtx->status = *ex.status;
pCtx->handler->HandleResponse( ex.status, 0 );
}
}
// clean up the context if necessary
bool delctx = ( pCtx->pending == 0 );
scoped.UnLock();
if( delctx )
delete pCtx;
// clean up the arguments
delete status;
delete response;
// and finally commit suicide
delete this;
}
private:
RecursiveDirListCtx *pCtx;
};
//----------------------------------------------------------------------------
// Exception for a merge dirlist handler
//----------------------------------------------------------------------------
struct MergeDirLsErr
{
MergeDirLsErr( XrdCl::XRootDStatus *&status, XrdCl::AnyObject *&response ) :
status( status ), response( response )
{
status = 0; response = 0;
}
MergeDirLsErr() :
status( new XrdCl::XRootDStatus( XrdCl::stError, XrdCl::errInternal ) ),
response( 0 )
{
}
XrdCl::XRootDStatus *status;
XrdCl::AnyObject *response;
};
//----------------------------------------------------------------------------
// Handle results for a merge dirlist request
//----------------------------------------------------------------------------
class MergeDirListHandler: public XrdCl::ResponseHandler
{
public:
MergeDirListHandler( XrdCl::ResponseHandler *handler ) : pHandler( handler )
{
}
virtual void HandleResponse( XrdCl::XRootDStatus *status,
XrdCl::AnyObject *response )
{
try
{
if( !status->IsOK() )
throw MergeDirLsErr( status, response );
if( !response )
throw MergeDirLsErr();
XrdCl::DirectoryList *dirlist = 0;
response->Get( dirlist );
if( !dirlist )
throw MergeDirLsErr();
Merge( dirlist );
response->Set( dirlist );
pHandler->HandleResponse( status, response );
}
catch( const MergeDirLsErr &err )
{
delete status; delete response;
pHandler->HandleResponse( err.status, err.response );
}
delete this;
}
static void Merge( XrdCl::DirectoryList *&response )
{
std::set<ListEntry*, less> unique( response->Begin(), response->End() );
XrdCl::DirectoryList *dirlist = new XrdCl::DirectoryList();
dirlist->SetParentName( response->GetParentName() );
for( auto itr = unique.begin(); itr != unique.end(); ++itr )
{
ListEntry *entry = *itr;
dirlist->Add( new ListEntry( entry->GetHostAddress(),
entry->GetName(),
entry->GetStatInfo() ) );
entry->SetStatInfo( 0 );
}
delete response;
response = dirlist;
}
private:
typedef XrdCl::DirectoryList::ListEntry ListEntry;
struct less
{
bool operator() (const ListEntry *x, const ListEntry *y) const
{
if( x->GetName() != y->GetName() )
return x->GetName() < y->GetName();
const XrdCl::StatInfo *xStatInfo = x->GetStatInfo();
const XrdCl::StatInfo *yStatInfo = y->GetStatInfo();
if( xStatInfo == yStatInfo )
return false;
if( xStatInfo == 0 )
return true;
if( yStatInfo == 0 )
return false;
if( xStatInfo->GetSize() != yStatInfo->GetSize() )
return xStatInfo->GetSize() < yStatInfo->GetSize();
if( xStatInfo->GetFlags() != yStatInfo->GetFlags() )
return xStatInfo->GetFlags() < yStatInfo->GetFlags();
return false;
}
};
XrdCl::ResponseHandler *pHandler;
};
}
namespace XrdCl
{
//----------------------------------------------------------------------------
//! Wrapper class used to assign a load balancer
//----------------------------------------------------------------------------
class AssignLBHandler: public ResponseHandler
{
public:
//------------------------------------------------------------------------
// Constructor and destructor
//------------------------------------------------------------------------
AssignLBHandler( FileSystem *fs, ResponseHandler *userHandler ):
pFS(fs), pUserHandler(userHandler) {}
virtual ~AssignLBHandler() {}
//------------------------------------------------------------------------
// Response callback
//------------------------------------------------------------------------
virtual void HandleResponseWithHosts( XRootDStatus *status,
AnyObject *response,
HostList *hostList )
{
if( status->IsOK() )
{
HostList::reverse_iterator it;
for( it = hostList->rbegin(); it != hostList->rend(); ++it )
if( it->loadBalancer )
{
pFS->AssignLoadBalancer( it->url );
break;
}
}
pUserHandler->HandleResponseWithHosts( status, response, hostList );
delete this;
}
private:
FileSystem *pFS;
ResponseHandler *pUserHandler;
};
//----------------------------------------------------------------------------
// Constructor
//----------------------------------------------------------------------------
FileSystem::FileSystem( const URL &url, bool enablePlugIns ):
pLoadBalancerLookupDone( false ),
pFollowRedirects( true ),
pPlugIn(0)
{
pUrl = new URL( url.GetURL() );
//--------------------------------------------------------------------------
// Check if we need to install a plug-in for this URL
//--------------------------------------------------------------------------
if( enablePlugIns )
{
Log *log = DefaultEnv::GetLog();
std::string urlStr = url.GetURL();
PlugInFactory *fact = DefaultEnv::GetPlugInManager()->GetFactory(urlStr);
if( fact )
{
pPlugIn = fact->CreateFileSystem( urlStr );
if( !pPlugIn )
{
log->Error( FileMsg, "Plug-in factory failed to produce a plug-in "
"for %s, continuing without one", urlStr.c_str() );
}
}
}
if( !pPlugIn )
DefaultEnv::GetForkHandler()->RegisterFileSystemObject( this );
}
//----------------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------------
FileSystem::~FileSystem()
{
if( !pPlugIn )
{
if( DefaultEnv::GetForkHandler() )
DefaultEnv::GetForkHandler()->UnRegisterFileSystemObject( this );
}
delete pUrl;
delete pPlugIn;
}
//----------------------------------------------------------------------------
// Locate a file - async
//----------------------------------------------------------------------------
XRootDStatus FileSystem::Locate( const std::string &path,
OpenFlags::Flags flags,
ResponseHandler *handler,
uint16_t timeout )
{
if( pPlugIn )
return pPlugIn->Locate( path, flags, handler, timeout );
std::string fPath = FilterXrdClCgi( path );
Message *msg;
ClientLocateRequest *req;
MessageUtils::CreateRequest( msg, req, fPath.length() );
req->requestid = kXR_locate;
req->options = flags;
req->dlen = fPath.length();
msg->Append( fPath.c_str(), fPath.length(), 24 );
MessageSendParams params; params.timeout = timeout;
MessageUtils::ProcessSendParams( params );
XRootDTransport::SetDescription( msg );
return Send( msg, handler, params );
}
//----------------------------------------------------------------------------
// Locate a file - sync
//----------------------------------------------------------------------------
XRootDStatus FileSystem::Locate( const std::string &path,
OpenFlags::Flags flags,
LocationInfo *&response,
uint16_t timeout )
{
SyncResponseHandler handler;
Status st = Locate( path, flags, &handler, timeout );
if( !st.IsOK() )
return st;
return MessageUtils::WaitForResponse( &handler, response );
}
//----------------------------------------------------------------------------
// Locate a file, recursively locate all disk servers - async
//----------------------------------------------------------------------------
XRootDStatus FileSystem::DeepLocate( const std::string &path,
OpenFlags::Flags flags,
ResponseHandler *handler,
uint16_t timeout )
{
return Locate( path, flags,
new DeepLocateHandler( handler, path, flags,
::time(0)+timeout ),
timeout );
}
//----------------------------------------------------------------------------
// Locate a file, recursively locate all disk servers - sync
//----------------------------------------------------------------------------
XRootDStatus FileSystem::DeepLocate( const std::string &path,
OpenFlags::Flags flags,
LocationInfo *&response,
uint16_t timeout )
{
SyncResponseHandler handler;
Status st = DeepLocate( path, flags, &handler, timeout );
if( !st.IsOK() )
return st;
return MessageUtils::WaitForResponse( &handler, response );
}
//----------------------------------------------------------------------------
// Move a directory or a file - async
//----------------------------------------------------------------------------
XRootDStatus FileSystem::Mv( const std::string &source,
const std::string &dest,
ResponseHandler *handler,
uint16_t timeout )
{
if( pPlugIn )
return pPlugIn->Mv( source, dest, handler, timeout );
std::string fSource = FilterXrdClCgi( source );
std::string fDest = FilterXrdClCgi( dest );
Message *msg;
ClientMvRequest *req;
MessageUtils::CreateRequest( msg, req, fSource.length() + fDest.length()+1 );
req->requestid = kXR_mv;
req->dlen = fSource.length() + fDest.length()+1;
req->arg1len = fSource.length();
msg->Append( fSource.c_str(), fSource.length(), 24 );
*msg->GetBuffer(24 + fSource.length()) = ' ';
msg->Append( fDest.c_str(), fDest.length(), 25 + fSource.length() );
MessageSendParams params; params.timeout = timeout;
MessageUtils::ProcessSendParams( params );
XRootDTransport::SetDescription( msg );
return Send( msg, handler, params );
}
//----------------------------------------------------------------------------
// Move a directory or a file - sync
//----------------------------------------------------------------------------
XRootDStatus FileSystem::Mv( const std::string &source,
const std::string &dest,
uint16_t timeout )
{
SyncResponseHandler handler;
Status st = Mv( source, dest, &handler, timeout );
if( !st.IsOK() )
return st;
return MessageUtils::WaitForStatus( &handler );
}
//----------------------------------------------------------------------------
// Obtain server information - async
//----------------------------------------------------------------------------
XRootDStatus FileSystem::Query( QueryCode::Code queryCode,
const Buffer &arg,
ResponseHandler *handler,
uint16_t timeout )
{
if( pPlugIn )
return pPlugIn->Query( queryCode, arg, handler, timeout );
Message *msg;
ClientQueryRequest *req;
MessageUtils::CreateRequest( msg, req, arg.GetSize() );
req->requestid = kXR_query;
req->infotype = queryCode;
req->dlen = arg.GetSize();
msg->Append( arg.GetBuffer(), arg.GetSize(), 24 );
MessageSendParams params; params.timeout = timeout;
MessageUtils::ProcessSendParams( params );
XRootDTransport::SetDescription( msg );
return Send( msg, handler, params );
}
//----------------------------------------------------------------------------
// Obtain server information - sync
//----------------------------------------------------------------------------
XRootDStatus FileSystem::Query( QueryCode::Code queryCode,
const Buffer &arg,
Buffer *&response,
uint16_t timeout )
{
SyncResponseHandler handler;
Status st = Query( queryCode, arg, &handler, timeout );
if( !st.IsOK() )