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XRootD
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#include <XrdThrottle.hh>
Public Member Functions | |
virtual int | checkpoint (cpAct act, struct iov *range=0, int n=0) |
virtual int | close () |
virtual int | fctl (const int cmd, const char *args, XrdOucErrInfo &eInfo)=0 |
virtual int | fctl (const int cmd, const char *args, XrdOucErrInfo &out_error) |
virtual int | fctl (const int cmd, int alen, const char *args, const XrdSecEntity *client=0) |
virtual const char * | FName () |
virtual int | getCXinfo (char cxtype[4], int &cxrsz) |
virtual int | getMmap (void **Addr, off_t &Size) |
virtual int | open (const char *fileName, XrdSfsFileOpenMode openMode, mode_t createMode, const XrdSecEntity *client, const char *opaque=0) |
virtual XrdSfsXferSize | pgRead (XrdSfsAio *aioparm, uint64_t opts=0) |
virtual XrdSfsXferSize | pgRead (XrdSfsFileOffset offset, char *buffer, XrdSfsXferSize rdlen, uint32_t *csvec, uint64_t opts=0) |
virtual XrdSfsXferSize | pgWrite (XrdSfsAio *aioparm, uint64_t opts=0) |
virtual XrdSfsXferSize | pgWrite (XrdSfsFileOffset offset, char *buffer, XrdSfsXferSize rdlen, uint32_t *csvec, uint64_t opts=0) |
virtual int | read (XrdSfsAio *aioparm) |
virtual XrdSfsXferSize | read (XrdSfsFileOffset fileOffset, char *buffer, XrdSfsXferSize buffer_size) |
virtual int | read (XrdSfsFileOffset fileOffset, XrdSfsXferSize amount) |
virtual int | SendData (XrdSfsDio *sfDio, XrdSfsFileOffset offset, XrdSfsXferSize size) |
virtual int | stat (struct stat *buf) |
virtual int | sync () |
virtual int | sync (XrdSfsAio *aiop) |
virtual int | truncate (XrdSfsFileOffset fileOffset) |
virtual int | write (XrdSfsAio *aioparm) |
virtual XrdSfsXferSize | write (XrdSfsFileOffset fileOffset, const char *buffer, XrdSfsXferSize buffer_size) |
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XrdSfsFile (const char *user=0, int MonID=0) | |
XrdSfsFile (XrdOucErrInfo &eInfo) | |
XrdSfsFile (XrdSfsFile &wrapF) | |
virtual | ~XrdSfsFile () |
Destructor. More... | |
virtual int | fctl (const int cmd, int alen, const char *args, const XrdSecEntity *client=0) |
virtual XrdSfsXferSize | readv (XrdOucIOVec *readV, int rdvCnt) |
virtual void | setXio (XrdSfsXio *xioP) |
virtual XrdSfsXferSize | writev (XrdOucIOVec *writeV, int wdvCnt) |
Friends | |
class | FileSystem |
Additional Inherited Members | |
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enum | cpAct { cpCreate =0 , cpDelete , cpRestore , cpQuery , cpTrunc , cpWrite } |
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XrdOucErrInfo & | error |
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static const uint64_t | Verify = 0x8000000000000000ULL |
Options for pgRead() and pgWrite() as noted below. More... | |
Definition at line 28 of file XrdThrottle.hh.
Reimplemented from XrdSfsFile.
Definition at line 88 of file XrdThrottleFile.cc.
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Close the file.
Implements XrdSfsFile.
Definition at line 81 of file XrdThrottleFile.cc.
References XrdThrottleManager::CloseFile().
virtual int XrdSfsFile::fctl |
Execute a special operation on the file (version 1)
cmd | - The operation to be performed (see below). SFS_FCTL_GETFD Return file descriptor if possible SFS_FCTL_STATV Reserved for future use. |
args | - specific arguments to cmd SFS_FCTL_GETFD Set to zero. |
eInfo | - The object where error info or results are to be returned. This is legacy and the error onject may be used as well. |
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Execute a special operation on the file (version 1)
cmd | - The operation to be performed (see below). SFS_FCTL_GETFD Return file descriptor if possible SFS_FCTL_STATV Reserved for future use. |
args | - specific arguments to cmd SFS_FCTL_GETFD Set to zero. |
eInfo | - The object where error info or results are to be returned. This is legacy and the error onject may be used as well. |
Implements XrdSfsFile.
Definition at line 92 of file XrdThrottleFile.cc.
References XrdSfsFile::error, XrdOucErrInfo::setErrInfo(), SFS_ERROR, and SFS_FCTL_GETFD.
int XrdSfsFile::fctl |
Execute a special operation on the file (version 2)
cmd | - The operation to be performed: SFS_FCTL_SPEC1 Perform implementation defined action |
alen | - Length of data pointed to by args. |
args | - Data sent with request, zero if alen is zero. |
client | - Client's identify (see common description). |
Definition at line 489 of file XrdSfsInterface.cc.
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Get the file path.
Implements XrdSfsFile.
Definition at line 106 of file XrdThrottleFile.cc.
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Get compression information for the file.
cxtype | - Place where the compression algorithm name is to be placed |
cxrsz | - Place where the compression page size is to be returned |
Implements XrdSfsFile.
Definition at line 233 of file XrdThrottleFile.cc.
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Get file's memory mapping if one exists (memory mapped files only).
Addr | - Place where the starting memory address is returned. |
Size | - Place where the file's size is returned. |
Implements XrdSfsFile.
Definition at line 112 of file XrdThrottleFile.cc.
References XrdSfsFile::error, XrdOucErrInfo::setErrInfo(), and SFS_ERROR.
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Open a file.
fileName | - Pointer to the path of the file to be opened. |
openMode | - Flags indicating how the open is to be handled. SFS_O_CREAT create the file SFS_O_MKPTH Make directory path if missing SFS_O_NOWAIT do not impose operational delays SFS_O_NOTPC do not allow TPC operation SFS_O_POSC persist only on successful close SFS_O_RAWIO allow client-side decompression SFS_O_RDONLY open read/only SFS_O_RDWR open read/write SFS_O_REPLICA Open for replication SFS_O_RESET Reset any cached information SFS_O_TRUNC truncate existing file to zero length SFS_O_WRONLY open write/only |
createMode | - The file's mode if it will be created. |
client | - Client's identify (see common description). |
opaque | - path's CGI information (see common description). |
Implements XrdSfsFile.
Definition at line 49 of file XrdThrottleFile.cc.
References XrdThrottleManager::CloseFile(), XrdSecEntity::eaAPI, XrdSfsFile::error, XrdSecEntityAttr::Get(), XrdThrottleManager::GetUid(), XrdSecEntity::name, XrdThrottleManager::OpenFile(), XrdThrottleManager::PrepLoadShed(), XrdOucErrInfo::setErrInfo(), SFS_ERROR, and XrdSecEntity::vorg.
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Read file pages and checksums using asynchronous I/O.
aioparm | - Pointer to async I/O object controlling the I/O. |
opts | - Processing options (see above). |
Reimplemented from XrdSfsFile.
Definition at line 130 of file XrdThrottleFile.cc.
References aiocb::aio_buf, aiocb::aio_nbytes, aiocb::aio_offset, XrdSfsAio::cksVec, XrdSfsAio::doneRead(), opts, pgRead(), XrdSfsAio::Result, SFS_OK, and XrdSfsAio::sfsAio.
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Read file pages into a buffer and return corresponding checksums.
offset | - The offset where the read is to start. It may be unaligned with certain caveats relative to csvec. |
buffer | - pointer to buffer where the bytes are to be placed. |
rdlen | - The number of bytes to read. The amount must be an integral number of XrdSfsPage::Size bytes. |
csvec | - A vector of entries to be filled with the cooresponding CRC32C checksum for each page. However, if the offset is unaligned, then csvec[0] contains the crc for the page fragment that brings it to alignment for csvec[1]. It must be sized to hold all aligned XrdSys::Pagesize crc's plus additional ones for leading and ending page fragments, if any. |
opts | - Processing options (see above). |
Reimplemented from XrdSfsFile.
Definition at line 119 of file XrdThrottleFile.cc.
References DO_THROTTLE, and opts.
Referenced by pgRead().
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Write file pages and checksums using asynchronous I/O.
aioparm | - Pointer to async I/O object controlling the I/O. |
opts | - Processing options (see above). |
Reimplemented from XrdSfsFile.
Definition at line 152 of file XrdThrottleFile.cc.
References aiocb::aio_buf, aiocb::aio_nbytes, aiocb::aio_offset, XrdSfsAio::cksVec, XrdSfsAio::doneWrite(), opts, pgWrite(), XrdSfsAio::Result, SFS_OK, and XrdSfsAio::sfsAio.
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Write file pages into a file with corresponding checksums.
offset | - The offset where the write is to start. It may be unaligned with certain caveats relative to csvec. |
buffer | - pointer to buffer containing the bytes to write. |
wrlen | - The number of bytes to write. If amount is not an integral number of XrdSys::PageSize bytes, then this must be the last write to the file at or above the offset. |
csvec | - A vector which contains the corresponding CRC32 checksum for each page or page fragment. If offset is unaligned then csvec[0] is the crc of the leading fragment to align the subsequent full page who's crc is in csvec[1]. It must be sized to hold all aligned XrdSys::Pagesize crc's plus additional ones for leading and ending page fragments, if any. |
opts | - Processing options (see above). |
Reimplemented from XrdSfsFile.
Definition at line 141 of file XrdThrottleFile.cc.
References DO_THROTTLE, and opts.
Referenced by pgWrite().
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Read file bytes using asynchronous I/O.
aioparm | - Pointer to async I/O object controlling the I/O. |
Implements XrdSfsFile.
Definition at line 180 of file XrdThrottleFile.cc.
References aiocb::aio_buf, aiocb::aio_nbytes, aiocb::aio_offset, XrdSfsAio::doneRead(), read(), XrdSfsAio::Result, SFS_OK, and XrdSfsAio::sfsAio.
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Read file bytes into a buffer.
offset | - The offset where the read is to start. |
buffer | - pointer to buffer where the bytes are to be placed. |
size | - The number of bytes to read. |
Implements XrdSfsFile.
Definition at line 171 of file XrdThrottleFile.cc.
References DO_THROTTLE.
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Preread file blocks into the file system cache.
offset | - The offset where the read is to start. |
size | - The number of bytes to pre-read. |
Implements XrdSfsFile.
Definition at line 163 of file XrdThrottleFile.cc.
References DO_THROTTLE.
Referenced by read().
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Send file bytes via a XrdSfsDio sendfile object to a client (optional).
sfDio | - Pointer to the sendfile object for data transfer. |
offset | - The offset where the read is to start. |
size | - The number of bytes to read and send. |
Reimplemented from XrdSfsFile.
Definition at line 239 of file XrdThrottleFile.cc.
References DO_THROTTLE.
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Return state information on the file.
buf | - Pointer to the structure where info it to be returned. |
Implements XrdSfsFile.
Definition at line 221 of file XrdThrottleFile.cc.
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Make sure all outstanding data is actually written to the file (sync).
Implements XrdSfsFile.
Definition at line 209 of file XrdThrottleFile.cc.
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Make sure all outstanding data is actually written to the file (async).
Implements XrdSfsFile.
Definition at line 215 of file XrdThrottleFile.cc.
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Truncate the file.
fsize | - The size that the file is to have. |
Implements XrdSfsFile.
Definition at line 227 of file XrdThrottleFile.cc.
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Write file bytes using asynchronous I/O.
aioparm | - Pointer to async I/O object controlling the I/O. |
Implements XrdSfsFile.
Definition at line 199 of file XrdThrottleFile.cc.
References aiocb::aio_buf, aiocb::aio_nbytes, aiocb::aio_offset, XrdSfsAio::doneWrite(), XrdSfsAio::Result, SFS_OK, XrdSfsAio::sfsAio, and write().
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Write file bytes from a buffer.
offset | - The offset where the write is to start. |
buffer | - pointer to buffer where the bytes reside. |
size | - The number of bytes to write. |
Implements XrdSfsFile.
Definition at line 190 of file XrdThrottleFile.cc.
References DO_THROTTLE.
Referenced by write().
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Definition at line 30 of file XrdThrottle.hh.