rfio_unlink man page

RFIO_UNLINK(3) Rfio Library Functions RFIO_UNLINK(3)

[1mNAME[0m
rfio_unlink - remove a file entry

[1mSYNOPSIS[0m
[1m#include <sys/types.h>[0m
[1m#include "rfio_api.h"[0m

[1mint rfio_unlink (const char *[4m[22mpath[24m[1m);[0m
[1mint rfio_munlink (const char *[4m[22mpath[24m[1m);[0m
[1mint rfio_munlink_reset ();[0m
[1mint rfio_unend ();[0m

[1mDESCRIPTION[0m
[1mrfio_unlink [22mremoves a file entry.

[4mpath[24m specifies the logical pathname relative to the current directory
or the full pathname.

[1mrfio_munlink [22mis identical to [1mrfio_unlink [22mbut keeps the connection open
to the server unless there are more than MAXMCON connections already
opened. This is useful when issuing a series of unlink calls. The last
[1mrfio_munlink [22mcall should be followed by a call to [1mrfio_unend[22m.

[1mrfio_munlink_reset [22mis to be used when your program is forking. In such
a case the permanent connections opened with [1mrfio_munlink [22mbecome shared
between the parent and the child. Use [1mrfio_munlink_reset [22mto perform the
necessary reset and close of the socket file descriptor in the parent
or the child in order to be sure that only of them will receice an
answer from the RFIO daemon.

[1mrfio_munlink_reset [22mis to be used when your program is forking. In such
a case the permanent connections opened with [1mrfio_munlink [22mbecome shared
between the parent and the child. Use [1mrfio_munlink_reset [22mto perform the
necessary reset and close of the socket file descriptor in the parent
or the child in order to be sure that only of them will receice an
answer from the RFIO daemon.

See NOTES section below.

[1mRETURN VALUE[0m
This routine returns 0 if the operation was successful or -1 if the
operation failed. In the latter case, [1mserrno [22mis set appropriately.

[1mNOTES[0m
Multiple connections using rfio_munlink are thread-safe but not
process-wide, therefore a forked child cann share file descriptors
opened with rfio_munlink by its parent. Use [1mrfio_msymlink_reset [22min such
case.

Multiple connections behaviour is undefined if you work in a multi-
threaded environment and with threads [1mnot [22mcreated using the LCG's
[1mCthread [22minterface.

[1mERRORS[0m
[1mEPERM [4m[22mpath[24m is a directory.

[1mENOENT [22mThe named file does not exist or is a null pathname.

[1mEACCES [22mSearch permission is denied on a component of the [4mpath[0m
prefix or write permission is denied on the parent direc-
tory or the parent has the sticky bit S_ISVTX set and

the effective user ID of the requestor does not match
the owner ID of the file and

the effective user ID of the requestor does not match
the owner ID of the directory and

the file is not writable by the requestor and

the requestor is not super-user.

[1mEFAULT [4m[22mpath[24m is a NULL pointer.

[1mENOTDIR [22mA component of [4mpath[24m prefix is not a directory.

[1mENAMETOOLONG [22mThe length of [4mpath[24m exceeds [1mCA_MAXPATHLEN [22mor the length of
a [4mpath[24m component exceeds [1mCA_MAXNAMELEN[22m.

[1mSENOSHOST [22mHost unknown.

[1mSENOSSERV [22mService unknown.

[1mSECOMERR [22mCommunication error.

[1mSEE ALSO[0m
[1mCastor_limits(4)[22m, [1mrfio_rmdir(3)[22m, [1mCthread(3)[0m

[1mAUTHOR[0m
[1mLCG Grid Deployment [22mTeam

LCG $Date: 2005/03/31 13:13:04 $ RFIO_UNLINK(3)

Referenced By

rfio_munlink(3) is an alias of rfio_unlink(3).