XrdPosixMap Class Reference

#include <XrdPosixMap.hh>

Collaboration diagram for XrdPosixMap:

Public Member Functions
	XrdPosixMap ()
	~XrdPosixMap ()

Static Public Member Functions
static int	Entry2Buf (const XrdCl::DirectoryList::ListEntry &dirEnt, struct stat &buf, XrdOucECMsg &ecMsg)
static mode_t	Flags2Mode (dev_t *rdv, uint32_t flags)
static XrdCl::Access::Mode	Mode2Access (mode_t mode)
static int	Result (const XrdCl::XRootDStatus &Status, XrdOucECMsg &ecMsg, bool retneg1=false)
static void	SetDebug (bool dbg)

Detailed Description

Definition at line 45 of file XrdPosixMap.hh.

Constructor & Destructor Documentation

XrdPosixMap()

XrdPosixMap::XrdPosixMap ( )

inline

Definition at line 62 of file XrdPosixMap.hh.

{}

~XrdPosixMap()

XrdPosixMap::~XrdPosixMap ( )

inline

Definition at line 63 of file XrdPosixMap.hh.

{}

Member Function Documentation

Entry2Buf()

int XrdPosixMap::Entry2Buf ( const XrdCl::DirectoryList::ListEntry &  dirEnt, struct stat &  buf, XrdOucECMsg &  ecMsg  )

static

Definition at line 88 of file XrdPosixMap.cc.

{
   auto statInfo = dirEnt.GetStatInfo();
   if (!statInfo) {
      ecMsg.Set(EIO, "Directory entry is missing expected stat information");
      return EIO;
   }
 
   memset(&buf, '\0', sizeof(buf));
   buf.st_mode   = Flags2Mode(nullptr, statInfo->GetFlags());
   if (statInfo->ExtendedFormat())
      {// Flags2Mode only maps the simplified protocol flags to owner permission
       // bits (S_IRUSR, S_IWUSR, S_IXUSR). The extended stat response carries
       // the full POSIX permission mode as an octal string (e.g. "0644").
       // Replace the permission bits while preserving the file type (S_IFMT).
       mode_t realPerms = strtol(statInfo->GetModeAsString().c_str(), nullptr, 8);
       buf.st_mode = (buf.st_mode & S_IFMT) | (realPerms & 07777);
       buf.st_ctime = static_cast<time_t>(statInfo->GetChangeTime());
       buf.st_atime = static_cast<time_t>(statInfo->GetAccessTime());
      }
   else
      {// Since the UID/GID isn't known by the client, when these are translated by
       // XrdXrootdProtocol::StatGen back to xroot protocol flags, they will get zero'd
       // out if only the user access mode is set (e.g., S_IRUSR).  Therefor, upgrade the
       // access mode in the mapping to "other" as well (e.g., S_ROTH).  This way, the
       // computed mode is the same for both the origin and the cache
       if (buf.st_mode & S_IRUSR) buf.st_mode |= S_IROTH;
       if (buf.st_mode & S_IWUSR) buf.st_mode |= S_IWOTH;
       if (buf.st_mode & S_IXUSR) buf.st_mode |= S_IXOTH;
      }
   buf.st_mtime  = static_cast<time_t>(statInfo->GetModTime());
   buf.st_ctime  = buf.st_mtime;
   buf.st_size   = static_cast<size_t>(statInfo->GetSize());
   buf.st_ino    = static_cast<ino_t>(strtoll(statInfo->GetId().c_str(), 0, 10));
   buf.st_blocks = buf.st_size/512 + buf.st_size%512;
   // If the device is zero'd out, then the listing later is translated to being offline
   buf.st_dev    = 1;
 
   return 0;
}

References XrdOssArcGlobals::ecMsg, Flags2Mode(), XrdCl::DirectoryList::ListEntry::GetStatInfo(), and XrdOucECMsg::Set().

Referenced by XrdPosixDir::nextEntry().

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Flags2Mode()

mode_t XrdPosixMap::Flags2Mode ( dev_t *  rdv, uint32_t  flags  )

static

Definition at line 62 of file XrdPosixMap.cc.

{
   mode_t newflags = 0;
 
// Map the xroot flags to unix flags
//
   if (flags & XrdCl::StatInfo::XBitSet)       newflags |= S_IXUSR;
   if (flags & XrdCl::StatInfo::IsReadable)    newflags |= S_IRUSR;
   if (flags & XrdCl::StatInfo::IsWritable)    newflags |= S_IWUSR;
        if (flags & XrdCl::StatInfo::Other)    newflags |= S_IFBLK;
   else if (flags & XrdCl::StatInfo::IsDir)    newflags |= S_IFDIR;
   else                                        newflags |= S_IFREG;
   if (flags & XrdCl::StatInfo::POSCPending)   newflags |= XRDSFS_POSCPEND;
   if (rdv)
  {*rdv = 0;
   if (flags & XrdCl::StatInfo::Offline)       *rdv     |= XRDSFS_OFFLINE;
   if (flags & XrdCl::StatInfo::BackUpExists)  *rdv     |= XRDSFS_HASBKUP;
  }
 
   return newflags;
}

References XrdCl::StatInfo::BackUpExists, XrdCl::StatInfo::IsDir, XrdCl::StatInfo::IsReadable, XrdCl::StatInfo::IsWritable, XrdCl::StatInfo::Offline, XrdCl::StatInfo::Other, XrdCl::StatInfo::POSCPending, XrdCl::StatInfo::XBitSet, XRDSFS_HASBKUP, XRDSFS_OFFLINE, and XRDSFS_POSCPEND.

Referenced by Entry2Buf(), XrdPosixAdmin::Stat(), and XrdPosixFile::Stat().

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Mode2Access()

XrdCl::Access::Mode XrdPosixMap::Mode2Access ( mode_t  mode )

static

Definition at line 175 of file XrdPosixMap.cc.

{  XrdCl::Access::Mode XMode = XrdCl::Access::None;
 
// Map the mode
//
   if (mode & S_IRUSR) XMode |= XrdCl::Access::UR;
   if (mode & S_IWUSR) XMode |= XrdCl::Access::UW;
   if (mode & S_IXUSR) XMode |= XrdCl::Access::UX;
   if (mode & S_IRGRP) XMode |= XrdCl::Access::GR;
   if (mode & S_IWGRP) XMode |= XrdCl::Access::GW;
   if (mode & S_IXGRP) XMode |= XrdCl::Access::GX;
   if (mode & S_IROTH) XMode |= XrdCl::Access::OR;
   if (mode & S_IXOTH) XMode |= XrdCl::Access::OX;
   return XMode;
}

References XrdCl::Access::GR, XrdCl::Access::GW, XrdCl::Access::GX, XrdCl::Access::None, XrdCl::Access::OR, XrdCl::Access::OX, XrdCl::Access::UR, XrdCl::Access::UW, and XrdCl::Access::UX.

Referenced by XrdPosixXrootd::Mkdir().

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Result()

int XrdPosixMap::Result ( const XrdCl::XRootDStatus &  Status, XrdOucECMsg &  ecMsg, bool  retneg1 = false  )

static

Definition at line 195 of file XrdPosixMap.cc.

{
   int eNum;
 
// If all went well, return success
//
   if (Status.IsOK()) return 0;
 
// If this is an xrootd error then get the xrootd generated error
//
   if (Status.code == XrdCl::errErrorResponse)
      {ecMsg = Status.GetErrorMessage();
       eNum  = XProtocol::toErrno(Status.errNo);
      } else {
       ecMsg = Status.ToStr();
       eNum  = (Status.errNo ? Status.errNo : mapCode(Status.code));
      }
 
// Trace this if need be (we supress this for as we really need more info to
// make this messae useful like the opteration and path).
//
// if (eNum != ENOENT && !ecMsg.hasMsg() && Debug)
//    std::cerr <<"XrdPosix: " <<eText <<std::endl;
 
// Return
//
   ecMsg = errno = eNum;
   return (retneg1 ? -1 : -eNum);
}

References XrdCl::Status::code, XrdOssArcGlobals::ecMsg, XrdCl::errErrorResponse, XrdCl::Status::errNo, XrdCl::XRootDStatus::GetErrorMessage(), XrdCl::Status::IsOK(), XProtocol::toErrno(), and XrdCl::XRootDStatus::ToStr().

Referenced by XrdPosixXrootd::Close(), XrdPosixAdmin::FanOut(), XrdPosixFile::Fcntl(), XrdPosixFileRH::HandleResponse(), XrdPosixFile::HandleResponse(), XrdPosixXrootd::Mkdir(), XrdPosixDir::Open(), XrdPosixFile::pgRead(), XrdPosixFile::pgWrite(), XrdPosixAdmin::Query(), XrdPosixFile::Read(), XrdPosixFile::ReadV(), XrdPosixXrootd::Rename(), XrdPosixXrootd::Rmdir(), XrdPosixAdmin::Stat(), XrdPosixXrootd::Statvfs(), XrdPosixFile::Sync(), XrdPosixFile::Trunc(), XrdPosixXrootd::Truncate(), XrdPosixXrootd::Unlink(), and XrdPosixFile::Write().

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SetDebug()

static void XrdPosixMap::SetDebug ( bool  dbg )

inlinestatic

Definition at line 60 of file XrdPosixMap.hh.

{Debug = dbg;}

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

• XrdPosixMap.hh
• XrdPosixMap.cc