xrootd
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#include <XrdOfs.hh>
Public Member Functions | |
int | open (const char *fileName, XrdSfsFileOpenMode openMode, mode_t createMode, const XrdSecEntity *client, const char *opaque=0) |
int | checkpoint (XrdSfsFile::cpAct act, struct iov *range=0, int n=0) |
int | close () |
int | fctl (const int cmd, const char *args, XrdOucErrInfo &out_error) |
int | fctl (const int cmd, int alen, const char *args, const XrdSecEntity *client=0) |
const char * | FName () |
int | getMmap (void **Addr, off_t &Size) |
XrdSfsXferSize | pgRead (XrdSfsFileOffset offset, char *buffer, XrdSfsXferSize rdlen, uint32_t *csvec, uint64_t opts=0) |
int | pgRead (XrdSfsAio *aioparm, uint64_t opts=0) |
XrdSfsXferSize | pgWrite (XrdSfsFileOffset offset, char *buffer, XrdSfsXferSize wrlen, uint32_t *csvec, uint64_t opts=0) |
int | pgWrite (XrdSfsAio *aioparm, uint64_t opts=0) |
int | read (XrdSfsFileOffset fileOffset, XrdSfsXferSize amount) |
XrdSfsXferSize | read (XrdSfsFileOffset fileOffset, char *buffer, XrdSfsXferSize buffer_size) |
XrdSfsXferSize | readv (XrdOucIOVec *readV, int readCount) |
int | read (XrdSfsAio *aioparm) |
XrdSfsXferSize | write (XrdSfsFileOffset fileOffset, const char *buffer, XrdSfsXferSize buffer_size) |
int | write (XrdSfsAio *aioparm) |
int | sync () |
int | sync (XrdSfsAio *aiop) |
int | stat (struct stat *buf) |
int | truncate (XrdSfsFileOffset fileOffset) |
int | getCXinfo (char cxtype[4], int &cxrsz) |
XrdOfsFile (XrdOucErrInfo &eInfo, const char *user) | |
~XrdOfsFile () | |
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) |
Public Member Functions inherited from XrdSfsFile | |
virtual int | SendData (XrdSfsDio *sfDio, XrdSfsFileOffset offset, XrdSfsXferSize size) |
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. | |
Protected Attributes | |
const char * | tident |
XrdOfsHandle * | oh |
XrdOfsTPC * | myTPC |
XrdOucChkPnt * | myCKP |
int | dorawio |
char | viaDel |
bool | ckpBad |
Private Member Functions | |
void | GenFWEvent () |
int | CreateCKP () |
Additional Inherited Members | |
Public Types inherited from XrdSfsFile | |
enum | cpAct { cpCreate =0 , cpDelete , cpRestore , cpQuery , cpTrunc , cpWrite } |
Public Attributes inherited from XrdSfsFile | |
XrdOucErrInfo & | error |
Static Public Attributes inherited from XrdSfsFile | |
static const uint64_t | Verify = 0x8000000000000000ULL |
Options for pgRead() and pgWrite() as noted below. | |
XrdOfsFile::XrdOfsFile | ( | XrdOucErrInfo & | eInfo, |
const char * | user | ||
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Reimplemented from XrdSfsFile.
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Close the file.
Implements XrdSfsFile.
Referenced by ~XrdOfsFile().
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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.
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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.
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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). |
Reimplemented from XrdSfsFile.
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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). |
Reimplemented from XrdSfsFile.
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Get the file path.
Implements XrdSfsFile.
References XrdOfsHandle::Name(), and oh.
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private |
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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Read file bytes using asynchronous I/O.
aioparm | - Pointer to async I/O object controlling the I/O. |
Implements XrdSfsFile.
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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.
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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.
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Given an array of read requests (size rdvCnt), read them from the file and place the contents consecutively in the provided buffer. A dumb default implementation is supplied but should be replaced to increase performance.
readV | pointer to the array of read requests. |
rdvCnt | the number of elements in readV. |
Reimplemented from XrdSfsFile.
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Return state information on the file.
buf | - Pointer to the structure where info it to be returned. |
Implements XrdSfsFile.
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Make sure all outstanding data is actually written to the file (sync).
Implements XrdSfsFile.
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Make sure all outstanding data is actually written to the file (async).
Implements XrdSfsFile.
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Truncate the file.
fsize | - The size that the file is to have. |
Implements XrdSfsFile.
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Write file bytes using asynchronous I/O.
aioparm | - Pointer to async I/O object controlling the I/O. |
Implements XrdSfsFile.
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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.
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Referenced by FName(), and ~XrdOfsFile().
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Referenced by ~XrdOfsFile().