XRootD
XrdCephPosix.hh File Reference
#include <sys/types.h>
#include <stdarg.h>
#include <string>
#include <dirent.h>
#include <cstdint>
#include <XrdOuc/XrdOucEnv.hh>
#include <XrdSys/XrdSysXAttr.hh>
#include "XrdSys/XrdSysPthread.hh"
#include "XrdOuc/XrdOucIOVec.hh"
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Classes

struct  CephFile
 small structs to store file metadata More...
 
struct  CephFileRef
 

Macros

#define LOGCEPH(x)   {std::stringstream _s; _s << x; std::clog << _s.str() << std::endl; _s.clear(); }
 
#define MAXDIGITSIZE   32
 
#define XRDCEPHLOGLEVEL   1
 

Typedefs

typedef void() AioCB(XrdSfsAio *, size_t)
 

Functions

ssize_t ceph_aio_read (int fd, XrdSfsAio *aiop, AioCB *cb)
 
ssize_t ceph_aio_write (int fd, XrdSfsAio *aiop, AioCB *cb)
 
ssize_t ceph_nonstriper_readv (int fd, XrdOucIOVec *readV, int n)
 
int ceph_posix_close (int fd)
 
int ceph_posix_closedir (DIR *dirp)
 
void ceph_posix_disconnect_all ()
 
int ceph_posix_fcntl (int fd, int cmd,...)
 
ssize_t ceph_posix_fgetxattr (int fd, const char *name, void *value, size_t size)
 
int ceph_posix_flistxattrs (int fd, XrdSysXAttr::AList **aPL, int getSz)
 
void ceph_posix_freexattrlist (XrdSysXAttr::AList *aPL)
 
int ceph_posix_fremovexattr (int fd, const char *name)
 
int ceph_posix_fsetxattr (int fd, const char *name, const void *value, size_t size, int flags)
 
int ceph_posix_fstat (int fd, struct stat *buf)
 
int ceph_posix_fsync (int fd)
 
int ceph_posix_ftruncate (int fd, unsigned long long size)
 
ssize_t ceph_posix_getxattr (XrdOucEnv *env, const char *path, const char *name, void *value, size_t size)
 
int ceph_posix_listxattrs (XrdOucEnv *env, const char *path, XrdSysXAttr::AList **aPL, int getSz)
 
off_t ceph_posix_lseek (int fd, off_t offset, int whence)
 
off64_t ceph_posix_lseek64 (int fd, off64_t offset, int whence)
 
ssize_t ceph_posix_maybestriper_pread (int fd, void *buf, size_t count, off64_t offset, bool allowStriper=true)
 
ssize_t ceph_posix_nonstriper_pread (int fd, void *buf, size_t count, off64_t offset)
 
int ceph_posix_open (XrdOucEnv *env, const char *pathname, int flags, mode_t mode)
 
DIR * ceph_posix_opendir (XrdOucEnv *env, const char *pathname)
 
ssize_t ceph_posix_pread (int fd, void *buf, size_t count, off64_t offset)
 
ssize_t ceph_posix_pwrite (int fd, const void *buf, size_t count, off64_t offset)
 
ssize_t ceph_posix_read (int fd, void *buf, size_t count)
 
int ceph_posix_readdir (DIR *dirp, char *buff, int blen)
 
int ceph_posix_removexattr (XrdOucEnv *env, const char *path, const char *name)
 
void ceph_posix_set_defaults (const char *value)
 
void ceph_posix_set_logfunc (void(*logfunc)(char *, va_list argp))
 
ssize_t ceph_posix_setxattr (XrdOucEnv *env, const char *path, const char *name, const void *value, size_t size, int flags)
 
int ceph_posix_stat (XrdOucEnv *env, const char *pathname, struct stat *buf)
 
int ceph_posix_stat_pool (char const *poolName, long long *usedSpace)
 Return the amount of space used in a pool. More...
 
int ceph_posix_statfs (long long *totalSpace, long long *freeSpace)
 
int ceph_posix_truncate (XrdOucEnv *env, const char *pathname, unsigned long long size)
 
int ceph_posix_unlink (XrdOucEnv *env, const char *pathname)
 
ssize_t ceph_posix_write (int fd, const void *buf, size_t count)
 
ssize_t ceph_striper_readv (int fd, XrdOucIOVec *readV, int n)
 

Macro Definition Documentation

◆ LOGCEPH

#define LOGCEPH (   x)    {std::stringstream _s; _s << x; std::clog << _s.str() << std::endl; _s.clear(); }

Definition at line 51 of file XrdCephPosix.hh.

◆ MAXDIGITSIZE

#define MAXDIGITSIZE   32

Definition at line 45 of file XrdCephPosix.hh.

◆ XRDCEPHLOGLEVEL

#define XRDCEPHLOGLEVEL   1

Definition at line 44 of file XrdCephPosix.hh.

Typedef Documentation

◆ AioCB

typedef void() AioCB(XrdSfsAio *, size_t)

Definition at line 58 of file XrdCephPosix.hh.

Function Documentation

◆ ceph_aio_read()

ssize_t ceph_aio_read ( int  fd,
XrdSfsAio aiop,
AioCB cb 
)

Definition at line 1175 of file XrdCephPosix.cc.

1175  {
1176  CephFileRef* fr = getFileRef(fd);
1177  if (fr) {
1178  // get the parameters from the Xroot aio object
1179  size_t count = aiop->sfsAio.aio_nbytes;
1180  size_t offset = aiop->sfsAio.aio_offset;
1181  // TODO implement proper logging level for this plugin - this should be only debug
1182  //logwrapper((char*)"ceph_aio_read: for fd %d, count=%d", fd, count);
1183  if ((fr->flags & O_WRONLY) != 0) {
1184  return -EBADF;
1185  }
1186  // get the striper object
1187  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
1188  if (0 == striper) {
1189  return -EINVAL;
1190  }
1191  // prepare a bufferlist to receive data
1192  ceph::bufferlist *bl = new ceph::bufferlist();
1193  // get the poolIdx to use
1194  int cephPoolIdx = getCephPoolIdxAndIncrease();
1195  // Get the cluster to use
1196  librados::Rados* cluster = checkAndCreateCluster(cephPoolIdx);
1197  if (0 == cluster) {
1198  return -EINVAL;
1199  }
1200  // prepare a ceph AioCompletion object and do async call
1201  AioArgs *args = new AioArgs(aiop, cb, count, fd, bl);
1202  librados::AioCompletion *completion =
1203  cluster->aio_create_completion(args, ceph_aio_read_complete, NULL);
1204  // do the read
1205  int rc = striper->aio_read(fr->name, completion, bl, count, offset);
1206  completion->release();
1207  XrdSysMutexHelper lock(fr->statsMutex);
1208  fr->asyncRdStartCount++;
1209  return rc;
1210  } else {
1211  return -EBADF;
1212  }
1213 }
unsigned int getCephPoolIdxAndIncrease()
librados::Rados * checkAndCreateCluster(unsigned int cephPoolIdx, std::string userId=g_defaultParams.userId)
static libradosstriper::RadosStriper * getRadosStriper(const CephFile &file)
static void ceph_aio_read_complete(rados_completion_t c, void *arg)
CephFileRef * getFileRef(int fd)
look for a FileRef from its file descriptor
off_t aio_offset
Definition: XrdSfsAio.hh:49
size_t aio_nbytes
Definition: XrdSfsAio.hh:48
struct aiocb sfsAio
Definition: XrdSfsAio.hh:62
small struct for aio API callbacks
Definition: XrdCephPosix.cc:66
unsigned asyncRdStartCount
XrdSysMutex statsMutex
std::string name

References aiocb::aio_nbytes, aiocb::aio_offset, CephFileRef::asyncRdStartCount, ceph_aio_read_complete(), checkAndCreateCluster(), CephFileRef::flags, getCephPoolIdxAndIncrease(), getFileRef(), getRadosStriper(), CephFile::name, XrdSfsAio::sfsAio, and CephFileRef::statsMutex.

Referenced by XrdCephBuffer::CephIOAdapterAIORaw::read(), and XrdCephOssFile::Read().

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◆ ceph_aio_write()

ssize_t ceph_aio_write ( int  fd,
XrdSfsAio aiop,
AioCB cb 
)

Definition at line 903 of file XrdCephPosix.cc.

903  {
904  CephFileRef* fr = getFileRef(fd);
905  if (fr) {
906  // get the parameters from the Xroot aio object
907  size_t count = aiop->sfsAio.aio_nbytes;
908  const char *buf = (const char*)aiop->sfsAio.aio_buf;
909  size_t offset = aiop->sfsAio.aio_offset;
910  // TODO implement proper logging level for this plugin - this should be only debug
911  //logwrapper((char*)"ceph_aio_write: for fd %d, count=%d", fd, count);
912  if ((fr->flags & (O_WRONLY|O_RDWR)) == 0) {
913  return -EBADF;
914  }
915  // get the striper object
916  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
917  if (0 == striper) {
918  return -EINVAL;
919  }
920  // prepare a bufferlist around the given buffer
921  ceph::bufferlist bl;
922  bl.append(buf, count);
923  // get the poolIdx to use
924  int cephPoolIdx = getCephPoolIdxAndIncrease();
925  // Get the cluster to use
926  librados::Rados* cluster = checkAndCreateCluster(cephPoolIdx);
927  if (0 == cluster) {
928  return -EINVAL;
929  }
930  // prepare a ceph AioCompletion object and do async call
931  AioArgs *args = new AioArgs(aiop, cb, count, fd);
932  librados::AioCompletion *completion =
933  cluster->aio_create_completion(args, ceph_aio_write_complete, NULL);
934  // do the write
935  int rc = striper->aio_write(fr->name, completion, bl, count, offset);
936  completion->release();
937  XrdSysMutexHelper lock(fr->statsMutex);
938  fr->asyncWrStartCount++;
939  ::gettimeofday(&fr->lastAsyncSubmission, nullptr);
940  fr->bytesAsyncWritePending+=count;
941  return rc;
942  } else {
943  return -EBADF;
944  }
945 }
static void ceph_aio_write_complete(rados_completion_t c, void *arg)
void * aio_buf
Definition: XrdSfsAio.hh:47
if(Avsz)
uint64_t bytesAsyncWritePending
unsigned asyncWrStartCount
::timeval lastAsyncSubmission

References aiocb::aio_buf, aiocb::aio_nbytes, aiocb::aio_offset, CephFileRef::asyncWrStartCount, CephFileRef::bytesAsyncWritePending, ceph_aio_write_complete(), checkAndCreateCluster(), CephFileRef::flags, getCephPoolIdxAndIncrease(), getFileRef(), getRadosStriper(), if(), CephFileRef::lastAsyncSubmission, CephFile::name, XrdSfsAio::sfsAio, and CephFileRef::statsMutex.

Referenced by XrdCephBuffer::CephIOAdapterAIORaw::write(), and XrdCephOssFile::Write().

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◆ ceph_nonstriper_readv()

ssize_t ceph_nonstriper_readv ( int  fd,
XrdOucIOVec readV,
int  n 
)

Definition at line 947 of file XrdCephPosix.cc.

947  {
948  CephFileRef* fr = getFileRef(fd);
949  if (fr) {
950  // TODO implement proper logging level for this plugin - this should be only debug
951  //logwrapper((char*)"ceph_read: for fd %d, count=%d", fd, count);
952  if ((fr->flags & O_WRONLY) != 0) {
953  return -EBADF;
954  }
955  if (fr->nbStripes != 1) {
956  //Non-striper based read method works only with a single stripe
957  return -ENOTSUP;
958  }
959 
960  ssize_t read_bytes;
961  int rc;
962 
963  librados::IoCtx *ioctx = getIoCtx(*fr);
964  if (0 == ioctx) {
965  return -EINVAL;
966  }
967 
968  try {
969  //Constructor can throw bad alloc
970  bulkAioRead readOp(ioctx, logwrapper, fr);
971 
972  for (int i = 0; i < n; i++) {
973  rc = readOp.read(readV[i].data, readV[i].size, readV[i].offset);
974  if (rc < 0) {
975  logwrapper( (char*)"Can not declare read request\n");
976  return rc;
977  }
978  }
979 
980  std::time_t wait_time = std::time(0);
981  rc = readOp.submit_and_wait_for_complete();
982  wait_time = std::time(0) - wait_time;
983  if (wait_time > g_cephAioWaitThresh) {
984  logwrapper(
985  (char*)"Waiting for AIO results in readv for %s took %ld seconds, too long!\n",
986  fr->name.c_str(),
987  wait_time
988  );
989  }
990  if (rc < 0) {
991  logwrapper( (char*)"Can not submit read requests\n");
992  return rc;
993  }
994  read_bytes = readOp.get_results();
995  XrdSysMutexHelper lock(fr->statsMutex);
996  //We consider readv as a single operation
997  fr->rdcount += 1;
998  return read_bytes;
999  } catch(std::bad_alloc&) {
1000  return -ENOMEM;
1001  }
1002  } else {
1003  return -EBADF;
1004  }
1005 }
static librados::IoCtx * getIoCtx(const CephFile &file)
static void logwrapper(char *format,...)
unsigned int g_cephAioWaitThresh
Definition: XrdCephPosix.cc:91
unsigned rdcount
unsigned int nbStripes

References CephFileRef::flags, g_cephAioWaitThresh, bulkAioRead::get_results(), getFileRef(), getIoCtx(), logwrapper(), CephFile::name, CephFile::nbStripes, CephFileRef::rdcount, bulkAioRead::read(), CephFileRef::statsMutex, and bulkAioRead::submit_and_wait_for_complete().

Referenced by XrdCephOssFile::ReadV().

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◆ ceph_posix_close()

int ceph_posix_close ( int  fd)

Definition at line 760 of file XrdCephPosix.cc.

760  {
761  CephFileRef* fr = getFileRef(fd);
762  if (fr) {
763  ::timeval now;
764  ::gettimeofday(&now, nullptr);
765  XrdSysMutexHelper lock(fr->statsMutex);
766  double lastAsyncAge = 0.0;
767  // Only compute an age if the starting point was set.
768  if (fr->lastAsyncSubmission.tv_sec && fr->lastAsyncSubmission.tv_usec) {
769  lastAsyncAge = 1.0 * (now.tv_sec - fr->lastAsyncSubmission.tv_sec)
770  + 0.000001 * (now.tv_usec - fr->lastAsyncSubmission.tv_usec);
771  }
772  logwrapper((char*)"ceph_close: closed fd %d for file %s, read ops count %d, write ops count %d, "
773  "async write ops %d/%d, async pending write bytes %ld, "
774  "async read ops %d/%d, bytes written/max offset %ld/%ld, "
775  "longest async write %f, longest callback invocation %f, last async op age %f",
776  fd, fr->name.c_str(), fr->rdcount, fr->wrcount,
779  fr->longestAsyncWriteTime, fr->longestCallbackInvocation, (lastAsyncAge));
780  deleteFileRef(fd, *fr);
781  return 0;
782  } else {
783  return -EBADF;
784  }
785 }
void deleteFileRef(int fd, const CephFileRef &fr)
deletes a FileRef from the global table of file descriptors
uint64_t maxOffsetWritten
double longestCallbackInvocation
uint64_t bytesWritten
double longestAsyncWriteTime
unsigned wrcount
unsigned asyncWrCompletionCount
unsigned asyncRdCompletionCount

References CephFileRef::asyncRdCompletionCount, CephFileRef::asyncRdStartCount, CephFileRef::asyncWrCompletionCount, CephFileRef::asyncWrStartCount, CephFileRef::bytesAsyncWritePending, CephFileRef::bytesWritten, deleteFileRef(), getFileRef(), CephFileRef::lastAsyncSubmission, logwrapper(), CephFileRef::longestAsyncWriteTime, CephFileRef::longestCallbackInvocation, CephFileRef::maxOffsetWritten, CephFile::name, CephFileRef::rdcount, CephFileRef::statsMutex, and CephFileRef::wrcount.

Referenced by XrdCephOssFile::Close().

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◆ ceph_posix_closedir()

int ceph_posix_closedir ( DIR *  dirp)

Definition at line 1626 of file XrdCephPosix.cc.

1626  {
1627  delete ((DirIterator*)dirp);
1628  return 0;
1629 }
small struct for directory listing
Definition: XrdCephPosix.cc:60

Referenced by XrdCephOssDir::Close().

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◆ ceph_posix_disconnect_all()

void ceph_posix_disconnect_all ( )

Definition at line 624 of file XrdCephPosix.cc.

624  {
626  for (unsigned int i= 0; i < g_maxCephPoolIdx; i++) {
627  for (StriperDict::iterator it2 = g_radosStripers[i].begin();
628  it2 != g_radosStripers[i].end();
629  it2++) {
630  delete it2->second;
631  }
632  for (IOCtxDict::iterator it2 = g_ioCtx[i].begin();
633  it2 != g_ioCtx[i].end();
634  it2++) {
635  delete it2->second;
636  }
637  delete g_cluster[i];
638  }
639  g_radosStripers.clear();
640  g_ioCtx.clear();
641  g_cluster.clear();
642 }
std::vector< librados::Rados * > g_cluster
Definition: XrdCephPosix.cc:84
XrdSysMutex g_striper_mutex
mutex protecting the striper and ioctx maps
Definition: XrdCephPosix.cc:86
std::vector< IOCtxDict > g_ioCtx
Definition: XrdCephPosix.cc:83
unsigned int g_maxCephPoolIdx
Definition: XrdCephPosix.cc:95
std::vector< StriperDict > g_radosStripers
Definition: XrdCephPosix.cc:81

References g_cluster, g_ioCtx, g_maxCephPoolIdx, g_radosStripers, and g_striper_mutex.

Referenced by XrdCephOss::~XrdCephOss().

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◆ ceph_posix_fcntl()

int ceph_posix_fcntl ( int  fd,
int  cmd,
  ... 
)

Definition at line 1286 of file XrdCephPosix.cc.

1286  {
1287  CephFileRef* fr = getFileRef(fd);
1288  if (fr) {
1289  logwrapper((char*)"ceph_fcntl: fd %d cmd=%d", fd, cmd);
1290  // minimal implementation
1291  switch (cmd) {
1292  case F_GETFL:
1293  return fr->mode;
1294  default:
1295  return -EINVAL;
1296  }
1297  } else {
1298  return -EBADF;
1299  }
1300 }

References getFileRef(), logwrapper(), and CephFileRef::mode.

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◆ ceph_posix_fgetxattr()

ssize_t ceph_posix_fgetxattr ( int  fd,
const char *  name,
void *  value,
size_t  size 
)

Definition at line 1323 of file XrdCephPosix.cc.

1324  {
1325  CephFileRef* fr = getFileRef(fd);
1326  if (fr) {
1327  logwrapper((char*)"ceph_fgetxattr: fd %d name=%s", fd, name);
1328  return ceph_posix_internal_getxattr(*fr, name, value, size);
1329  } else {
1330  return -EBADF;
1331  }
1332 }
static ssize_t ceph_posix_internal_getxattr(const CephFile &file, const char *name, void *value, size_t size)

References ceph_posix_internal_getxattr(), getFileRef(), and logwrapper().

Referenced by XrdCephXAttr::Get().

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◆ ceph_posix_flistxattrs()

int ceph_posix_flistxattrs ( int  fd,
XrdSysXAttr::AList **  aPL,
int  getSz 
)

Definition at line 1435 of file XrdCephPosix.cc.

1435  {
1436  CephFileRef* fr = getFileRef(fd);
1437  if (fr) {
1438  logwrapper((char*)"ceph_flistxattrs: fd %d", fd);
1439  return ceph_posix_internal_listxattrs(*fr, aPL, getSz);
1440  } else {
1441  return -EBADF;
1442  }
1443 }
static int ceph_posix_internal_listxattrs(const CephFile &file, XrdSysXAttr::AList **aPL, int getSz)

References ceph_posix_internal_listxattrs(), getFileRef(), and logwrapper().

Referenced by XrdCephXAttr::List().

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◆ ceph_posix_freexattrlist()

void ceph_posix_freexattrlist ( XrdSysXAttr::AList aPL)

Definition at line 1445 of file XrdCephPosix.cc.

1445  {
1446  while (aPL) {
1447  free(aPL->Name);
1448  XrdSysXAttr::AList *cur = aPL;
1449  aPL = aPL->Next;
1450  free(cur);
1451  }
1452 }
char Name[1]
Start of the name (size of struct is dynamic)
Definition: XrdSysXAttr.hh:56
AList * Next
-> next element.
Definition: XrdSysXAttr.hh:53

References XrdSysXAttr::AList::Name, and XrdSysXAttr::AList::Next.

Referenced by XrdCephXAttr::Free().

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◆ ceph_posix_fremovexattr()

int ceph_posix_fremovexattr ( int  fd,
const char *  name 
)

Definition at line 1386 of file XrdCephPosix.cc.

1386  {
1387  CephFileRef* fr = getFileRef(fd);
1388  if (fr) {
1389  logwrapper((char*)"ceph_fremovexattr: fd %d name=%s", fd, name);
1390  return ceph_posix_internal_removexattr(*fr, name);
1391  } else {
1392  return -EBADF;
1393  }
1394 }
static int ceph_posix_internal_removexattr(const CephFile &file, const char *name)

References ceph_posix_internal_removexattr(), getFileRef(), and logwrapper().

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◆ ceph_posix_fsetxattr()

int ceph_posix_fsetxattr ( int  fd,
const char *  name,
const void *  value,
size_t  size,
int  flags 
)

Definition at line 1356 of file XrdCephPosix.cc.

1358  {
1359  CephFileRef* fr = getFileRef(fd);
1360  if (fr) {
1361  logwrapper((char*)"ceph_fsetxattr: fd %d name=%s value=%s", fd, name, value);
1362  return ceph_posix_internal_setxattr(*fr, name, value, size, flags);
1363  } else {
1364  return -EBADF;
1365  }
1366 }
static ssize_t ceph_posix_internal_setxattr(const CephFile &file, const char *name, const void *value, size_t size, int flags)

References ceph_posix_internal_setxattr(), getFileRef(), and logwrapper().

Referenced by XrdCephXAttr::Set().

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◆ ceph_posix_fstat()

int ceph_posix_fstat ( int  fd,
struct stat buf 
)

Definition at line 1215 of file XrdCephPosix.cc.

1215  {
1216  CephFileRef* fr = getFileRef(fd);
1217  if (fr) {
1218  logwrapper((char*)__FUNCTION__,": fd %d", fd);
1219  // minimal stat : only size and times are filled
1220  // atime, mtime and ctime are set all to the same value
1221  // mode is set arbitrarily to 0666 | S_IFREG
1222  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
1223  if (0 == striper) {
1224  logwrapper((char*)"ceph_stat: getRadosStriper failed");
1225  return -EINVAL;
1226  }
1227  memset(buf, 0, sizeof(*buf));
1228  int rc = striper->stat(fr->name, (uint64_t*)&(buf->st_size), &(buf->st_atime));
1229  if (rc != 0) {
1230  return -rc;
1231  }
1232  buf->st_dev = 1;
1233  buf->st_ino = 1;
1234  buf->st_mtime = buf->st_atime;
1235  buf->st_ctime = buf->st_atime;
1236  buf->st_mode = 0666 | S_IFREG;
1237  return 0;
1238  } else {
1239  return -EBADF;
1240  }
1241 }

References getFileRef(), getRadosStriper(), logwrapper(), and CephFile::name.

Referenced by XrdCephOssFile::Fstat().

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◆ ceph_posix_fsync()

int ceph_posix_fsync ( int  fd)

Definition at line 1275 of file XrdCephPosix.cc.

1275  {
1276  CephFileRef* fr = getFileRef(fd);
1277  if (fr) {
1278  // no locking of fr as it is not used.
1279  logwrapper((char*)"ceph_sync: fd %d", fd);
1280  return 0;
1281  } else {
1282  return -EBADF;
1283  }
1284 }

References getFileRef(), and logwrapper().

Referenced by XrdCephOssFile::Fsync().

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◆ ceph_posix_ftruncate()

int ceph_posix_ftruncate ( int  fd,
unsigned long long  size 
)

Definition at line 1525 of file XrdCephPosix.cc.

1525  {
1526  CephFileRef* fr = getFileRef(fd);
1527  if (fr) {
1528  logwrapper((char*)"ceph_posix_ftruncate: fd %d, size %d", fd, size);
1529  return ceph_posix_internal_truncate(*fr, size);
1530  } else {
1531  return -EBADF;
1532  }
1533 }
static int ceph_posix_internal_truncate(const CephFile &file, unsigned long long size)

References ceph_posix_internal_truncate(), getFileRef(), and logwrapper().

Referenced by XrdCephOssFile::Ftruncate().

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◆ ceph_posix_getxattr()

ssize_t ceph_posix_getxattr ( XrdOucEnv env,
const char *  path,
const char *  name,
void *  value,
size_t  size 
)

Definition at line 1316 of file XrdCephPosix.cc.

1318  {
1319  logwrapper((char*)"ceph_getxattr: path %s name=%s", path, name);
1320  return ceph_posix_internal_getxattr(getCephFile(path, env), name, value, size);
1321 }
static CephFile getCephFile(const char *path, XrdOucEnv *env)

References ceph_posix_internal_getxattr(), getCephFile(), and logwrapper().

Referenced by XrdCephXAttr::Get(), and getNumericAttr().

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◆ ceph_posix_listxattrs()

int ceph_posix_listxattrs ( XrdOucEnv env,
const char *  path,
XrdSysXAttr::AList **  aPL,
int  getSz 
)

Definition at line 1430 of file XrdCephPosix.cc.

1430  {
1431  logwrapper((char*)"ceph_listxattrs: path %s", path);
1432  return ceph_posix_internal_listxattrs(getCephFile(path, env), aPL, getSz);
1433 }

References ceph_posix_internal_listxattrs(), getCephFile(), and logwrapper().

Referenced by XrdCephXAttr::List().

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◆ ceph_posix_lseek()

off_t ceph_posix_lseek ( int  fd,
off_t  offset,
int  whence 
)

Definition at line 801 of file XrdCephPosix.cc.

801  {
802  CephFileRef* fr = getFileRef(fd);
803  if (fr) {
804  logwrapper((char*)"ceph_lseek: for fd %d, offset=%lld, whence=%d", fd, offset, whence);
805  return (off_t)lseek_compute_offset(*fr, offset, whence);
806  } else {
807  return -EBADF;
808  }
809 }
static off64_t lseek_compute_offset(CephFileRef &fr, off64_t offset, int whence)

References getFileRef(), logwrapper(), and lseek_compute_offset().

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◆ ceph_posix_lseek64()

off64_t ceph_posix_lseek64 ( int  fd,
off64_t  offset,
int  whence 
)

Definition at line 811 of file XrdCephPosix.cc.

811  {
812  CephFileRef* fr = getFileRef(fd);
813  if (fr) {
814  logwrapper((char*)"ceph_lseek64: for fd %d, offset=%lld, whence=%d", fd, offset, whence);
815  return lseek_compute_offset(*fr, offset, whence);
816  } else {
817  return -EBADF;
818  }
819 }

References getFileRef(), logwrapper(), and lseek_compute_offset().

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◆ ceph_posix_maybestriper_pread()

ssize_t ceph_posix_maybestriper_pread ( int  fd,
void *  buf,
size_t  count,
off64_t  offset,
bool  allowStriper = true 
)

Definition at line 1134 of file XrdCephPosix.cc.

1134  {
1135  ssize_t rc {0};
1136  if (!allowStriper) {
1137  rc = ceph_posix_pread(fd,buf,count,offset);
1138  return rc;
1139  }
1140  rc = ceph_posix_nonstriper_pread(fd, buf, count,offset);
1141  if (-ENOENT == rc || -ENOTSUP == rc) {
1142  //This might be a sparse file or nbstripes > 1, so let's try striper read
1143  rc = ceph_posix_pread(fd, buf, count,offset);
1144  if (rc >= 0) {
1145  char err_str[100]; //99 symbols should be enough for the short message
1146  snprintf(err_str, 100, "WARNING! The file (fd %d) seem to be sparse, this is not expected", fd);
1147  logwrapper(err_str);
1148  }
1149  }
1150  return rc;
1151 }
ssize_t ceph_posix_pread(int fd, void *buf, size_t count, off64_t offset)
ssize_t ceph_posix_nonstriper_pread(int fd, void *buf, size_t count, off64_t offset)

References ceph_posix_nonstriper_pread(), ceph_posix_pread(), and logwrapper().

Referenced by XrdCephBuffer::CephIOAdapterRaw::read(), and XrdCephBuffer::XrdCephBufferAlgSimple::read().

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◆ ceph_posix_nonstriper_pread()

ssize_t ceph_posix_nonstriper_pread ( int  fd,
void *  buf,
size_t  count,
off64_t  offset 
)

Definition at line 1048 of file XrdCephPosix.cc.

1048  {
1049  //The same as pread, but do not relies on rados striper library. Uses direct atomic
1050  //reads from ceph object (see BulkAioRead class for details).
1051  CephFileRef* fr = getFileRef(fd);
1052  if (fr) {
1053  // TODO implement proper logging level for this plugin - this should be only debug
1054  //logwrapper((char*)"ceph_read: for fd %d, count=%d", fd, count);
1055  if ((fr->flags & O_WRONLY) != 0) {
1056  return -EBADF;
1057  }
1058  if (fr->nbStripes != 1) {
1059  //Non-striper based read method works only with a single stripe
1060  return -ENOTSUP;
1061  }
1062 
1063  int rc;
1064  ssize_t bytes_read;
1065 
1066  librados::IoCtx *ioctx = getIoCtx(*fr);
1067  if (0 == ioctx) {
1068  return -EINVAL;
1069  }
1070 
1071  try {
1072  //Constructor can throw bad alloc
1073  bulkAioRead readOp(ioctx, logwrapper, fr);
1074  rc = readOp.read(buf, count, offset);
1075  if (rc < 0) {
1076  logwrapper( (char*)"Can not declare read request\n");
1077  return rc;
1078  }
1079  std::time_t wait_time = std::time(0);
1080  rc = readOp.submit_and_wait_for_complete();
1081  wait_time = std::time(0) - wait_time;
1082  if (wait_time > g_cephAioWaitThresh) {
1083  logwrapper(
1084  (char*)"Waiting for AIO results in pread for %s took %ld seconds, too long!\n",
1085  fr->name.c_str(),
1086  wait_time
1087  );
1088  }
1089  if (rc < 0) {
1090  logwrapper( (char*)"Can not submit read request\n");
1091  return rc;
1092  }
1093  bytes_read = readOp.get_results();
1094 
1095  if (bytes_read > 0) {
1096  XrdSysMutexHelper lock(fr->statsMutex);
1097  fr->rdcount++;
1098  } else {
1099  logwrapper( (char*)"Error while read: %d\n", bytes_read);
1100  }
1101  return bytes_read;
1102  } catch (std::bad_alloc&) {
1103  return -ENOMEM;
1104  }
1105  } else {
1106  return -EBADF;
1107  }
1108 }

References CephFileRef::flags, g_cephAioWaitThresh, bulkAioRead::get_results(), getFileRef(), getIoCtx(), logwrapper(), CephFile::name, CephFile::nbStripes, CephFileRef::rdcount, bulkAioRead::read(), CephFileRef::statsMutex, and bulkAioRead::submit_and_wait_for_complete().

Referenced by ceph_posix_maybestriper_pread(), and XrdCephOssFile::Read().

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◆ ceph_posix_open()

int ceph_posix_open ( XrdOucEnv env,
const char *  pathname,
int  flags,
mode_t  mode 
)
  • brief ceph_posix_open function opens a file for read or write
  • details This function either:
  • Opens a file for reading. If the file doesn't exist, this is an error.
  • Opens a file for writing. If the file already exists, check whether overwrite has been requested. If overwrite
  • hasn't been requested for an existing file, this is an error.
  • param env XrdOucEnv* Unused
  • param pathname const char* Specify the file to open.
  • param flags int Indicates whether reading or writing, and whether to overwrite an existing file.
  • param mode mode_t Unused
  • return int This is a file descriptor (non-negative) if the operation is successful,
  • or an error code (negative value) if the operation fails

Definition at line 664 of file XrdCephPosix.cc.

664  {
665 
666  CephFileRef fr = getCephFileRef(pathname, env, flags, mode, 0);
667 
668  struct stat buf;
669  libradosstriper::RadosStriper *striper = getRadosStriper(fr); //Get a handle to the RADOS striper API
670  if (NULL == striper) {
671  logwrapper((char*)"Cannot create striper");
672  return -EINVAL;
673  }
674  dumpClusterInfo(); // JW enhanced logging
675 
676  int rc = striper->stat(fr.name, (uint64_t*)&(buf.st_size), &(buf.st_atime)); //Get details about a file
677 
678 
679  bool fileExists = (rc != -ENOENT); //Make clear what condition we are testing
680 
681  logwrapper((char*)"Access Mode: %s flags&O_ACCMODE %d ", pathname, flags);
682 
683  if ((flags&O_ACCMODE) == O_RDONLY) { // Access mode is READ
684 
685  if (fileExists) {
686  librados::bufferlist d_stripeUnit;
687  librados::bufferlist d_objectSize;
688  std::string obj_name;
689  librados::IoCtx *context = getIoCtx(fr);
690 
691  // read first stripe of the object for xattr stripe unit and object size
692  // this will fail if the object was not written in stripes e.g. s3
693  // TBD: fallback to direct object (no stripe id appends to filename,
694  // replace striper metadata with corresponding metadata)
695  //
696  try {
697  obj_name = fr.name + std::string(".0000000000000000");
698  } catch (std::bad_alloc&) {
699  logwrapper((char*)"Can not create object string for file %s)", fr.name.c_str());
700  return -ENOMEM;
701  }
702  int ret = 0;
703  ret = context->getxattr(obj_name, "striper.layout.stripe_unit", d_stripeUnit);
704  ret = std::min(ret,context->getxattr(obj_name, "striper.layout.object_size", d_objectSize));
705  //log_func((char*)"size xattr for %s , %llu ,%llu", file_ref->name.c_str(), file_ref->objectSize, file_ref->stripeUnit );
706  if (ret<=0){
707  logwrapper((char*)"Could not find size or stripe_unit xattr for %s", fr.name.c_str());
708  }
709  else{
710  //librados's c_str() method does not return a NULL-terminated string, hence why we need to cleanup here
711  char cleanStripeUnit[MAXDIGITSIZE];
712  char cleanObjectSize[MAXDIGITSIZE];
713  unsigned int stripeUnitLength = std::min((unsigned int)MAXDIGITSIZE-1, d_stripeUnit.length());
714  unsigned int objectSizeLength = std::min((unsigned int)MAXDIGITSIZE-1, d_objectSize.length());
715  (void)strncpy( cleanStripeUnit, d_stripeUnit.c_str(), stripeUnitLength );
716  (void)strncpy( cleanObjectSize, d_objectSize.c_str(), objectSizeLength );
717  cleanStripeUnit[stripeUnitLength] = '\0';
718  cleanObjectSize[objectSizeLength] = '\0';
719  //only change defaults if different
720  if(fr.stripeUnit != std::stoull(cleanStripeUnit)){
721  logwrapper((char*)"WARNING: stripe unit of %s does not match defaults. object size is %s", pathname, cleanStripeUnit);
722  fr.stripeUnit = std::stoull(cleanStripeUnit);
723  }
724  if(fr.objectSize != std::stoull(cleanObjectSize)){
725  logwrapper((char*)"WARNING: object size of %s does not match defaults. object size is %s",pathname, cleanObjectSize);
726  fr.objectSize = std::stoull(cleanObjectSize);
727  }
728  }
729  int fd = insertFileRef(fr);
730  logwrapper((char*)"File descriptor %d associated to file %s opened in read mode", fd, pathname);
731  return fd;
732  } else {
733  return -ENOENT;
734  }
735 
736  } else { // Access mode is WRITE
737  if (fileExists) {
738  if (flags & O_TRUNC) {
739  int rc = ceph_posix_unlink(env, pathname);
740  if (rc < 0 && rc != -ENOENT) {
741  return rc;
742  }
743  } else {
744  if (flags & O_EXCL) {
745  return -EACCES; // permission denied
746  } else {
747  return -EEXIST; // otherwise return just file exists
748  }
749  }
750  }
751  // At this point, we know either the target file didn't exist, or the ceph_posix_unlink above removed it
752  int fd = insertFileRef(fr);
753  logwrapper((char*)"File descriptor %d associated to file %s opened in write mode", fd, pathname);
754  return fd;
755 
756  }
757 
758 }
int ceph_posix_unlink(XrdOucEnv *env, const char *pathname)
int insertFileRef(CephFileRef &fr)
static CephFileRef getCephFileRef(const char *path, XrdOucEnv *env, int flags, mode_t mode, unsigned long long offset)
void dumpClusterInfo()
static unsigned long long int stoull(const std::string &s)
simple integer parsing, to be replaced by std::stoll when C++11 can be used
#define MAXDIGITSIZE
Definition: XrdCephPosix.hh:45
int stat(const char *path, struct stat *buf)
unsigned long long stripeUnit
unsigned long long objectSize

References ceph_posix_unlink(), dumpClusterInfo(), getCephFileRef(), getIoCtx(), getRadosStriper(), insertFileRef(), logwrapper(), MAXDIGITSIZE, CephFile::name, CephFile::objectSize, stat(), stoull(), and CephFile::stripeUnit.

Referenced by XrdCephOssFile::Open().

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◆ ceph_posix_opendir()

DIR* ceph_posix_opendir ( XrdOucEnv env,
const char *  pathname 
)

Definition at line 1588 of file XrdCephPosix.cc.

1588  {
1589  logwrapper((char*)"ceph_posix_opendir : %s", pathname);
1590  // only accept root dir, as there is no concept of dirs in object stores
1591  CephFile file = getCephFile(pathname, env);
1592  if (file.name.size() != 1 || file.name[0] != '/') {
1593  errno = -ENOENT;
1594  return 0;
1595  }
1596  librados::IoCtx *ioctx = getIoCtx(file);
1597  if (0 == ioctx) {
1598  errno = EINVAL;
1599  return 0;
1600  }
1601  DirIterator* res = new DirIterator();
1602  res->m_iterator = ioctx->nobjects_begin();
1603  res->m_ioctx = ioctx;
1604  return (DIR*)res;
1605 }
librados::IoCtx * m_ioctx
Definition: XrdCephPosix.cc:62
librados::NObjectIterator m_iterator
Definition: XrdCephPosix.cc:61
small structs to store file metadata

References getCephFile(), getIoCtx(), logwrapper(), DirIterator::m_ioctx, DirIterator::m_iterator, and CephFile::name.

Referenced by XrdCephOssDir::Opendir().

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◆ ceph_posix_pread()

ssize_t ceph_posix_pread ( int  fd,
void *  buf,
size_t  count,
off64_t  offset 
)

Definition at line 1110 of file XrdCephPosix.cc.

1110  {
1111  CephFileRef* fr = getFileRef(fd);
1112  if (fr) {
1113  // TODO implement proper logging level for this plugin - this should be only debug
1114  //logwrapper((char*)"ceph_read: for fd %d, count=%d", fd, count);
1115  if ((fr->flags & O_WRONLY) != 0) {
1116  return -EBADF;
1117  }
1118  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
1119  if (0 == striper) {
1120  return -EINVAL;
1121  }
1122  ceph::bufferlist bl;
1123  int rc = striper->read(fr->name, &bl, count, offset);
1124  if (rc < 0) return rc;
1125  bl.begin().copy(rc, (char*)buf);
1126  XrdSysMutexHelper lock(fr->statsMutex);
1127  fr->rdcount++;
1128  return rc;
1129  } else {
1130  return -EBADF;
1131  }
1132 }

References CephFileRef::flags, getFileRef(), getRadosStriper(), CephFile::name, CephFileRef::rdcount, and CephFileRef::statsMutex.

Referenced by ceph_posix_maybestriper_pread(), ceph_striper_readv(), and XrdCephOssFile::Read().

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◆ ceph_posix_pwrite()

ssize_t ceph_posix_pwrite ( int  fd,
const void *  buf,
size_t  count,
off64_t  offset 
)

Definition at line 847 of file XrdCephPosix.cc.

847  {
848  CephFileRef* fr = getFileRef(fd);
849  if (fr) {
850  // TODO implement proper logging level for this plugin - this should be only debug
851  //logwrapper((char*)"ceph_write: for fd %d, count=%d", fd, count);
852  if ((fr->flags & (O_WRONLY|O_RDWR)) == 0) {
853  return -EBADF;
854  }
855  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
856  if (0 == striper) {
857  return -EINVAL;
858  }
859  ceph::bufferlist bl;
860  bl.append((const char*)buf, count);
861  int rc = striper->write(fr->name, bl, count, offset);
862  if (rc) return rc;
863  XrdSysMutexHelper lock(fr->statsMutex);
864  fr->wrcount++;
865  fr->bytesWritten+=count;
866  if (offset + count) fr->maxOffsetWritten = std::max(uint64_t(offset + count - 1), fr->maxOffsetWritten);
867  return count;
868  } else {
869  return -EBADF;
870  }
871 }

References CephFileRef::bytesWritten, CephFileRef::flags, getFileRef(), getRadosStriper(), CephFileRef::maxOffsetWritten, CephFile::name, CephFileRef::statsMutex, and CephFileRef::wrcount.

Referenced by XrdCephOssFile::Write(), and XrdCephBuffer::CephIOAdapterRaw::write().

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◆ ceph_posix_read()

ssize_t ceph_posix_read ( int  fd,
void *  buf,
size_t  count 
)

Definition at line 1023 of file XrdCephPosix.cc.

1023  {
1024  CephFileRef* fr = getFileRef(fd);
1025  if (fr) {
1026  // TODO implement proper logging level for this plugin - this should be only debug
1027  //logwrapper((char*)"ceph_read: for fd %d, count=%d", fd, count);
1028  if ((fr->flags & O_WRONLY) != 0) {
1029  return -EBADF;
1030  }
1031  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
1032  if (0 == striper) {
1033  return -EINVAL;
1034  }
1035  ceph::bufferlist bl;
1036  int rc = striper->read(fr->name, &bl, count, fr->offset);
1037  if (rc < 0) return rc;
1038  bl.begin().copy(rc, (char*)buf);
1039  XrdSysMutexHelper lock(fr->statsMutex);
1040  fr->offset += rc;
1041  fr->rdcount++;
1042  return rc;
1043  } else {
1044  return -EBADF;
1045  }
1046 }
uint64_t offset

References CephFileRef::flags, getFileRef(), getRadosStriper(), CephFile::name, CephFileRef::offset, CephFileRef::rdcount, and CephFileRef::statsMutex.

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◆ ceph_posix_readdir()

int ceph_posix_readdir ( DIR *  dirp,
char *  buff,
int  blen 
)

Definition at line 1607 of file XrdCephPosix.cc.

1607  {
1608  librados::NObjectIterator &iterator = ((DirIterator*)dirp)->m_iterator;
1609  librados::IoCtx *ioctx = ((DirIterator*)dirp)->m_ioctx;
1610  while (iterator->get_oid().compare(iterator->get_oid().size()-17, 17, ".0000000000000000") &&
1611  iterator != ioctx->nobjects_end()) {
1612  iterator++;
1613  }
1614  if (iterator == ioctx->nobjects_end()) {
1615  buff[0] = 0;
1616  } else {
1617  int l = iterator->get_oid().size()-17;
1618  if (l < blen) blen = l;
1619  strncpy(buff, iterator->get_oid().c_str(), blen-1);
1620  buff[blen-1] = 0;
1621  iterator++;
1622  }
1623  return 0;
1624 }

Referenced by XrdCephOssDir::Readdir().

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◆ ceph_posix_removexattr()

int ceph_posix_removexattr ( XrdOucEnv env,
const char *  path,
const char *  name 
)

Definition at line 1380 of file XrdCephPosix.cc.

1381  {
1382  logwrapper((char*)"ceph_removexattr: path %s name=%s", path, name);
1383  return ceph_posix_internal_removexattr(getCephFile(path, env), name);
1384 }

References ceph_posix_internal_removexattr(), getCephFile(), and logwrapper().

Referenced by XrdCephXAttr::Del().

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◆ ceph_posix_set_defaults()

void ceph_posix_set_defaults ( const char *  value)

sets the default userId, pool and file layout syntax is [user@]pool[,nbStripes[,stripeUnit[,objectSize]]] may throw std::invalid_argument or std::out_of_range in case of error

Definition at line 397 of file XrdCephPosix.cc.

397  {
398  if (value) {
399  CephFile newdefault;
400  fillCephFileParams(value, NULL, newdefault);
401  g_defaultParams = newdefault;
402  }
403 }
CephFile g_defaultParams
global variable containing defaults for CephFiles
void fillCephFileParams(const std::string &params, XrdOucEnv *env, CephFile &file)

References fillCephFileParams(), and g_defaultParams.

Referenced by XrdOssGetStorageSystem(), and XrdSysGetXAttrObject().

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◆ ceph_posix_set_logfunc()

void ceph_posix_set_logfunc ( void(*)(char *, va_list argp)  logfunc)

Definition at line 644 of file XrdCephPosix.cc.

644  {
645  g_logfunc = logfunc;
646 };
static void(* g_logfunc)(char *, va_list argp)=0
global variable for the log function

References g_logfunc.

Referenced by XrdOssGetStorageSystem().

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◆ ceph_posix_setxattr()

ssize_t ceph_posix_setxattr ( XrdOucEnv env,
const char *  path,
const char *  name,
const void *  value,
size_t  size,
int  flags 
)

Definition at line 1349 of file XrdCephPosix.cc.

1351  {
1352  logwrapper((char*)"ceph_setxattr: path %s name=%s value=%s", path, name, value);
1353  return ceph_posix_internal_setxattr(getCephFile(path, env), name, value, size, flags);
1354 }

References ceph_posix_internal_setxattr(), getCephFile(), and logwrapper().

Referenced by XrdCephXAttr::Set().

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◆ ceph_posix_stat()

int ceph_posix_stat ( XrdOucEnv env,
const char *  pathname,
struct stat buf 
)

Definition at line 1243 of file XrdCephPosix.cc.

1243  {
1244  logwrapper((char*)__FUNCTION__, pathname);
1245  // minimal stat : only size and times are filled
1246  // atime, mtime and ctime are set all to the same value
1247  // mode is set arbitrarily to 0666 | S_IFREG
1248  CephFile file = getCephFile(pathname, env);
1249  libradosstriper::RadosStriper *striper = getRadosStriper(file);
1250  if (0 == striper) {
1251  return -EINVAL;
1252  }
1253  memset(buf, 0, sizeof(*buf));
1254  int rc = striper->stat(file.name, (uint64_t*)&(buf->st_size), &(buf->st_atime));
1255  if (rc != 0) {
1256  // for non existing file. Check that we did not open it for write recently
1257  // in that case, we return 0 size and current time
1258  if (-ENOENT == rc && isOpenForWrite(file.name)) {
1259  buf->st_size = 0;
1260  buf->st_atime = time(NULL);
1261  } else {
1262  return -rc;
1263  }
1264  }
1265  // XRootD assumes an 'offline' file if st_dev and st_ino
1266 // are zero. Set to non-zero (meaningful) values to avoid this
1267  buf->st_dev = 1;
1268  buf->st_ino = 1;
1269  buf->st_mtime = buf->st_atime;
1270  buf->st_ctime = buf->st_atime;
1271  buf->st_mode = 0666 | S_IFREG;
1272  return 0;
1273 }
bool isOpenForWrite(std::string &name)
check whether a file is open for write

References getCephFile(), getRadosStriper(), isOpenForWrite(), logwrapper(), and CephFile::name.

Referenced by XrdCephOss::Stat().

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◆ ceph_posix_stat_pool()

int ceph_posix_stat_pool ( char const *  poolName,
long long *  usedSpace 
)

Return the amount of space used in a pool.

This function - Obtains the statistics that librados holds on a pool Calculates the number of bytes allocated to the pool @params poolName: (in) the name of the pool to query usedSpace: (out) the number of bytes used in the pool

Returns
success or failure status

Implementation: Jyothish Thomas STFC RAL, jyoth.nosp@m.ish..nosp@m.thoma.nosp@m.s@st.nosp@m.fc.ac.nosp@m..uk, 2022 Ian Johnson STFC RAL, ian.j.nosp@m.ohns.nosp@m.on@st.nosp@m.fc.a.nosp@m.c.uk, 2022, 2023

Definition at line 1491 of file XrdCephPosix.cc.

1491  {
1492 
1493  logwrapper((char*)__FUNCTION__, poolName);
1494  // get the poolIdx to use
1495  int cephPoolIdx = getCephPoolIdxAndIncrease();
1496  librados::Rados* cluster = checkAndCreateCluster(cephPoolIdx);
1497  if (0 == cluster) {
1498  return -EINVAL;
1499  }
1500 
1501  std::list<std::string> poolNames({poolName});
1502  std::map<std::string, librados::pool_stat_t> stat;
1503 
1504  if (cluster->get_pool_stats(poolNames, stat) < 0) {
1505 
1506  logwrapper((char*)"Unable to get_pool_stats for pool ", poolName);
1507  return -EINVAL;
1508 
1509  } else {
1510 
1511  *usedSpace = stat[poolName].num_kb * 1024;
1512  return XrdOssOK;
1513 
1514  }
1515 }
#define XrdOssOK
Definition: XrdOss.hh:50

References checkAndCreateCluster(), getCephPoolIdxAndIncrease(), logwrapper(), stat(), and XrdOssOK.

Referenced by XrdCephOss::StatLS().

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◆ ceph_posix_statfs()

int ceph_posix_statfs ( long long *  totalSpace,
long long *  freeSpace 
)

Definition at line 1454 of file XrdCephPosix.cc.

1454  {
1455  logwrapper((char*)"ceph_posix_statfs");
1456  // get the poolIdx to use
1457  int cephPoolIdx = getCephPoolIdxAndIncrease();
1458  // Get the cluster to use
1459  librados::Rados* cluster = checkAndCreateCluster(cephPoolIdx);
1460  if (0 == cluster) {
1461  return -EINVAL;
1462  }
1463  // call ceph stat
1464  librados::cluster_stat_t result;
1465  int rc = cluster->cluster_stat(result);
1466  if (0 == rc) {
1467  *totalSpace = result.kb * 1024;
1468  *freeSpace = result.kb_avail * 1024;
1469  }
1470  return rc;
1471 }

References checkAndCreateCluster(), getCephPoolIdxAndIncrease(), and logwrapper().

Referenced by XrdCephOss::StatVS().

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◆ ceph_posix_truncate()

int ceph_posix_truncate ( XrdOucEnv env,
const char *  pathname,
unsigned long long  size 
)

Definition at line 1535 of file XrdCephPosix.cc.

1535  {
1536  logwrapper((char*)"ceph_posix_truncate : %s", pathname);
1537  // minimal stat : only size and times are filled
1538  CephFile file = getCephFile(pathname, env);
1539  return ceph_posix_internal_truncate(file, size);
1540 }

References ceph_posix_internal_truncate(), getCephFile(), and logwrapper().

Referenced by XrdCephOss::Truncate().

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◆ ceph_posix_unlink()

int ceph_posix_unlink ( XrdOucEnv env,
const char *  pathname 
)

Definition at line 1542 of file XrdCephPosix.cc.

1542  {
1543  logwrapper((char*)"ceph_posix_unlink : %s", pathname);
1544  // start the timer
1545  auto timer_start = std::chrono::steady_clock::now();
1546 
1547  // minimal stat : only size and times are filled
1548  CephFile file = getCephFile(pathname, env);
1549  libradosstriper::RadosStriper *striper = getRadosStriper(file);
1550  if (0 == striper) {
1551  return -EINVAL;
1552  }
1553  int rc = striper->remove(file.name);
1554  auto end = std::chrono::steady_clock::now();
1555  auto deltime_ms = std::chrono::duration_cast<std::chrono::milliseconds>(end - timer_start).count();
1556 
1557  if (rc == 0) {
1558  logwrapper((char*)"ceph_posix_unlink : %s unlink successful: %d ms", pathname, deltime_ms);
1559  return 0;
1560  }
1561  if (rc != -EBUSY) {
1562  logwrapper((char*)"ceph_posix_unlink : %s unlink failed: %d ms; return code %d", pathname, deltime_ms, rc);
1563  return rc;
1564  }
1565  // if EBUSY returned, assume the file is locked; so try to remove the lock
1566  logwrapper((char*)"ceph_posix_unlink : unlink failed with -EBUSY %s, now trying to remove lock.", pathname);
1567 
1568  // lock name is only exposed in the libradosstriper source file, so hardcode it here.
1569  rc = ceph_posix_internal_removexattr(file, "lock.striper.lock");
1570  if (rc !=0 ) {
1571  logwrapper((char*)"ceph_posix_unlink : unlink rmxattr failed %s, %d", pathname, rc);
1572  return rc;
1573  }
1574 
1575  // now try to remove again
1576  rc = striper->remove(file.name);
1577  end = std::chrono::steady_clock::now();
1578  deltime_ms = std::chrono::duration_cast<std::chrono::milliseconds>(end - timer_start).count();
1579 
1580  if (rc != 0) {
1581  logwrapper((char*)"ceph_posix_unlink : unlink failed after lock removal %s, %d ms", pathname, deltime_ms);
1582  } else {
1583  logwrapper((char*)"ceph_posix_unlink : unlink suceeded after lock removal %s, %d ms", pathname, deltime_ms);
1584  }
1585  return rc;
1586 }

References ceph_posix_internal_removexattr(), getCephFile(), getRadosStriper(), logwrapper(), and CephFile::name.

Referenced by ceph_posix_open(), and XrdCephOss::Unlink().

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◆ ceph_posix_write()

ssize_t ceph_posix_write ( int  fd,
const void *  buf,
size_t  count 
)

Definition at line 821 of file XrdCephPosix.cc.

821  {
822  CephFileRef* fr = getFileRef(fd);
823  if (fr) {
824  logwrapper((char*)"ceph_write: for fd %d, count=%d", fd, count);
825  if ((fr->flags & (O_WRONLY|O_RDWR)) == 0) {
826  return -EBADF;
827  }
828  libradosstriper::RadosStriper *striper = getRadosStriper(*fr);
829  if (0 == striper) {
830  return -EINVAL;
831  }
832  ceph::bufferlist bl;
833  bl.append((const char*)buf, count);
834  int rc = striper->write(fr->name, bl, count, fr->offset);
835  if (rc) return rc;
836  fr->offset += count;
837  XrdSysMutexHelper lock(fr->statsMutex);
838  fr->wrcount++;
839  fr->bytesWritten+=count;
840  if (fr->offset) fr->maxOffsetWritten = std::max(fr->offset - 1, fr->maxOffsetWritten);
841  return count;
842  } else {
843  return -EBADF;
844  }
845 }

References CephFileRef::bytesWritten, CephFileRef::flags, getFileRef(), getRadosStriper(), logwrapper(), CephFileRef::maxOffsetWritten, CephFile::name, CephFileRef::offset, CephFileRef::statsMutex, and CephFileRef::wrcount.

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◆ ceph_striper_readv()

ssize_t ceph_striper_readv ( int  fd,
XrdOucIOVec readV,
int  n 
)

Sequential, striper-based readv implementation.

Definition at line 1007 of file XrdCephPosix.cc.

1007  {
1011  ssize_t nbytes = 0, curCount = 0;
1012  for (int i=0; i<n; i++) {
1013  curCount = ceph_posix_pread(fd, (void *)readV[i].data, (size_t)readV[i].size, (off_t)readV[i].offset);
1014  if (curCount != readV[i].size) {
1015  if (curCount < 0) return curCount;
1016  return -ESPIPE;
1017  }
1018  nbytes += curCount;
1019  }
1020  return nbytes;
1021 }

References ceph_posix_pread().

Referenced by XrdCephOssFile::ReadV().

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