#include <XrdThrottle.hh>
|
virtual int | open (const char *fileName, XrdSfsFileOpenMode openMode, mode_t createMode, const XrdSecEntity *client, const char *opaque=0) |
|
virtual int | close () |
|
virtual int | checkpoint (cpAct act, struct iov *range=0, int n=0) |
|
virtual int | fctl (const int cmd, const char *args, XrdOucErrInfo &out_error) |
|
virtual const char * | FName () |
|
virtual int | getMmap (void **Addr, off_t &Size) |
|
virtual XrdSfsXferSize | pgRead (XrdSfsFileOffset offset, char *buffer, XrdSfsXferSize rdlen, uint32_t *csvec, uint64_t opts=0) |
|
virtual XrdSfsXferSize | pgRead (XrdSfsAio *aioparm, uint64_t opts=0) |
|
virtual XrdSfsXferSize | pgWrite (XrdSfsFileOffset offset, char *buffer, XrdSfsXferSize rdlen, uint32_t *csvec, uint64_t opts=0) |
|
virtual XrdSfsXferSize | pgWrite (XrdSfsAio *aioparm, uint64_t opts=0) |
|
virtual int | read (XrdSfsFileOffset fileOffset, XrdSfsXferSize amount) |
|
virtual XrdSfsXferSize | read (XrdSfsFileOffset fileOffset, char *buffer, XrdSfsXferSize buffer_size) |
|
virtual int | read (XrdSfsAio *aioparm) |
|
virtual XrdSfsXferSize | write (XrdSfsFileOffset fileOffset, const char *buffer, XrdSfsXferSize buffer_size) |
|
virtual int | write (XrdSfsAio *aioparm) |
|
virtual int | sync () |
|
virtual int | sync (XrdSfsAio *aiop) |
|
virtual int | stat (struct stat *buf) |
|
virtual int | truncate (XrdSfsFileOffset fileOffset) |
|
virtual int | getCXinfo (char cxtype[4], int &cxrsz) |
|
virtual int | SendData (XrdSfsDio *sfDio, XrdSfsFileOffset offset, XrdSfsXferSize size) |
|
virtual int | fctl (const int cmd, const char *args, XrdOucErrInfo &eInfo)=0 |
|
virtual int | fctl (const int cmd, int alen, const char *args, const XrdSecEntity *client=0) |
|
virtual XrdSfsXferSize | readv (XrdOucIOVec *readV, int rdvCnt) |
|
virtual XrdSfsXferSize | writev (XrdOucIOVec *writeV, int wdvCnt) |
|
virtual void | setXio (XrdSfsXio *xioP) |
|
| XrdSfsFile (const char *user=0, int MonID=0) |
|
| XrdSfsFile (XrdSfsFile &wrapF) |
|
| XrdSfsFile (XrdOucErrInfo &eInfo) |
|
virtual | ~XrdSfsFile () |
| Destructor.
|
|
◆ File()
◆ ~File()
virtual XrdThrottle::File::~File |
( |
| ) |
|
|
privatevirtual |
◆ checkpoint()
virtual int XrdThrottle::File::checkpoint |
( |
cpAct |
act, |
|
|
struct iov * |
range = 0 , |
|
|
int |
n = 0 |
|
) |
| |
|
virtual |
◆ close()
virtual int XrdThrottle::File::close |
( |
| ) |
|
|
virtual |
Close the file.
- Returns
- One of SFS_OK or SFS_ERROR.
Implements XrdSfsFile.
◆ fctl() [1/3]
virtual int XrdSfsFile::fctl |
( |
const int |
cmd, |
|
|
const char * |
args, |
|
|
XrdOucErrInfo & |
eInfo |
|
) |
| |
|
virtual |
Execute a special operation on the file (version 1)
- Parameters
-
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. |
- Returns
- If an error occurs or the operation is not support, SFS_ERROR should be returned with error.code set to errno. Otherwise, SFS_FCTL_GETFD error.code holds the real file descriptor number If the value is negative, sendfile() is not used. If the value is SFS_SFIO_FDVAL then the SendData() method is used for future read requests.
Implements XrdSfsFile.
◆ fctl() [2/3]
virtual int XrdThrottle::File::fctl |
( |
const int |
cmd, |
|
|
const char * |
args, |
|
|
XrdOucErrInfo & |
eInfo |
|
) |
| |
|
virtual |
Execute a special operation on the file (version 1)
- Parameters
-
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. |
- Returns
- If an error occurs or the operation is not support, SFS_ERROR should be returned with error.code set to errno. Otherwise, SFS_FCTL_GETFD error.code holds the real file descriptor number If the value is negative, sendfile() is not used. If the value is SFS_SFIO_FDVAL then the SendData() method is used for future read requests.
Implements XrdSfsFile.
◆ fctl() [3/3]
virtual int XrdSfsFile::fctl |
( |
const int |
cmd, |
|
|
int |
alen, |
|
|
const char * |
args, |
|
|
const XrdSecEntity * |
client = 0 |
|
) |
| |
|
virtual |
Execute a special operation on the file (version 2)
- Parameters
-
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). |
- Returns
- SFS_OK a null response is sent.
-
SFS_DATA error.code length of the data to be sent. error.message contains the data to be sent. o/w one of SFS_ERROR, SFS_REDIRECT, or SFS_STALL.
Reimplemented from XrdSfsFile.
◆ FName()
virtual const char * XrdThrottle::File::FName |
( |
| ) |
|
|
virtual |
Get the file path.
- Returns
- Null terminated string of the path used in open().
Implements XrdSfsFile.
◆ getCXinfo()
virtual int XrdThrottle::File::getCXinfo |
( |
char |
cxtype[4], |
|
|
int & |
cxrsz |
|
) |
| |
|
virtual |
Get compression information for the file.
- Parameters
-
cxtype | - Place where the compression algorithm name is to be placed |
cxrsz | - Place where the compression page size is to be returned |
- Returns
- One of the valid SFS return codes described above. If the file is not compressed or an error is returned, cxrsz must be set to 0.
Implements XrdSfsFile.
◆ getMmap()
virtual int XrdThrottle::File::getMmap |
( |
void ** |
Addr, |
|
|
off_t & |
Size |
|
) |
| |
|
virtual |
Get file's memory mapping if one exists (memory mapped files only).
- Parameters
-
Addr | - Place where the starting memory address is returned. |
Size | - Place where the file's size is returned. |
- Returns
- SFS_OK when the file is memory mapped or any other code otherwise.
Implements XrdSfsFile.
◆ open()
virtual int XrdThrottle::File::open |
( |
const char * |
fileName, |
|
|
XrdSfsFileOpenMode |
openMode, |
|
|
mode_t |
createMode, |
|
|
const XrdSecEntity * |
client, |
|
|
const char * |
opaque = 0 |
|
) |
| |
|
virtual |
Open a file.
- Parameters
-
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). |
- Returns
- One of SFS_OK, SFS_ERROR, SFS_REDIRECT, SFS_STALL, or SFS_STARTED
Implements XrdSfsFile.
◆ pgRead() [1/2]
Read file pages and checksums using asynchronous I/O.
- Parameters
-
aioparm | - Pointer to async I/O object controlling the I/O. |
opts | - Processing options (see above). |
- Returns
- SFS_OK Request accepted and will be scheduled.
-
SFS_ERROR File could not be read, error holds the reason.
Reimplemented from XrdSfsFile.
◆ pgRead() [2/2]
Read file pages into a buffer and return corresponding checksums.
- Parameters
-
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). |
- Returns
- >= 0 The number of bytes that placed in buffer.
-
SFS_ERROR File could not be read, error holds the reason.
Reimplemented from XrdSfsFile.
◆ pgWrite() [1/2]
Write file pages and checksums using asynchronous I/O.
- Parameters
-
aioparm | - Pointer to async I/O object controlling the I/O. |
opts | - Processing options (see above). |
- Returns
- SFS_OK Request accepted and will be scheduled.
-
SFS_ERROR File could not be read, error holds the reason.
Reimplemented from XrdSfsFile.
◆ pgWrite() [2/2]
Write file pages into a file with corresponding checksums.
- Parameters
-
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). |
- Returns
- >= 0 The number of bytes written.
-
SFS_ERROR File could not be read, error holds the reason.
Reimplemented from XrdSfsFile.
◆ read() [1/3]
virtual int XrdThrottle::File::read |
( |
XrdSfsAio * |
aioparm | ) |
|
|
virtual |
Read file bytes using asynchronous I/O.
- Parameters
-
aioparm | - Pointer to async I/O object controlling the I/O. |
- Returns
- SFS_OK Request accepted and will be scheduled.
-
SFS_ERROR File could not be read, error holds the reason.
Implements XrdSfsFile.
◆ read() [2/3]
Read file bytes into a buffer.
- Parameters
-
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. |
- Returns
- >= 0 The number of bytes that placed in buffer.
-
SFS_ERROR File could not be read, error holds the reason.
Implements XrdSfsFile.
◆ read() [3/3]
Preread file blocks into the file system cache.
- Parameters
-
offset | - The offset where the read is to start. |
size | - The number of bytes to pre-read. |
- Returns
- >= 0 The number of bytes that will be pre-read.
-
SFS_ERROR File could not be preread, error holds the reason.
Implements XrdSfsFile.
◆ SendData()
Send file bytes via a XrdSfsDio sendfile object to a client (optional).
- Parameters
-
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. |
- Returns
- SFS_ERROR File not read, error object has reason.
-
SFS_OK Either data has been successfully sent via sfDio or no data has been sent and a normal read() should be issued.
Reimplemented from XrdSfsFile.
◆ stat()
virtual int XrdThrottle::File::stat |
( |
struct stat * |
buf | ) |
|
|
virtual |
Return state information on the file.
- Parameters
-
buf | - Pointer to the structure where info it to be returned. |
- Returns
- One of SFS_OK, SFS_ERROR, SFS_REDIRECT, or SFS_STALL. When SFS_OK is returned, buf must hold stat information.
Implements XrdSfsFile.
◆ sync() [1/2]
virtual int XrdThrottle::File::sync |
( |
| ) |
|
|
virtual |
Make sure all outstanding data is actually written to the file (sync).
- Returns
- One of SFS_OK, SFS_ERROR, SFS_REDIRECT, SFS_STALL, or SFS_STARTED
Implements XrdSfsFile.
◆ sync() [2/2]
virtual int XrdThrottle::File::sync |
( |
XrdSfsAio * |
aiop | ) |
|
|
virtual |
Make sure all outstanding data is actually written to the file (async).
- Returns
- SFS_OK Request accepted and will be scheduled.
-
SFS_ERROR Request could not be accepted, return error has reason.
Implements XrdSfsFile.
◆ truncate()
Truncate the file.
- Parameters
-
fsize | - The size that the file is to have. |
- Returns
- One of SFS_OK, SFS_ERROR, SFS_REDIRECT, or SFS_STALL
Implements XrdSfsFile.
◆ write() [1/2]
virtual int XrdThrottle::File::write |
( |
XrdSfsAio * |
aioparm | ) |
|
|
virtual |
Write file bytes using asynchronous I/O.
- Parameters
-
aioparm | - Pointer to async I/O object controlling the I/O. |
- Returns
- 0 Request accepted and will be scheduled.
-
!0 Request not accepted, returned value is errno.
Implements XrdSfsFile.
◆ write() [2/2]
Write file bytes from a buffer.
- Parameters
-
offset | - The offset where the write is to start. |
buffer | - pointer to buffer where the bytes reside. |
size | - The number of bytes to write. |
- Returns
- >= 0 The number of bytes that were written.
-
SFS_ERROR File could not be written, error holds the reason.
Implements XrdSfsFile.
◆ FileSystem
◆ m_connection_id
std::string XrdThrottle::File::m_connection_id |
|
private |
◆ m_eroute
◆ m_is_open
bool XrdThrottle::File::m_is_open {false} |
|
private |
◆ m_loadshed
std::string XrdThrottle::File::m_loadshed |
|
private |
◆ m_sfs
◆ m_throttle
◆ m_uid
int XrdThrottle::File::m_uid |
|
private |
◆ m_user
std::string XrdThrottle::File::m_user |
|
private |
The documentation for this class was generated from the following file: