vnop_readdir_eofp Entry Point
Purpose
Returns directory entries.
Syntax
int vnop_readdirr_eofp (vp, uiop, eofp, crp) struct vnode *vp; struct uio *uiop; int *eofp; struct ucred *crp;
Parameters
| Item | Description |
|---|---|
| vp | Points to the directory vnode to be processed. |
| uiop | Points to the uiop structure describing the user's buffer. |
| eofp | Points to a word that places the eop structure. |
| crp | Specifies user's credentials. |
Description
The vnop_readdir_eofp entry point is used to read directory entries. It is similar to vnop_readdir except that it takes the additional parameter, eofp. The location pointed to by the eofp parameter should be set to 1 if the readdir request reached the end of the directory. Otherwise, it should be set to 0.
File systems that do not define GFS_VERSION421 in their gfs flags do not need to supply a vnop_readdir_eofp entry point.
Note: If the call is meant for a JFS2 file system, extra processing is needed to
avoid duplicate entries being returned in the user data area, similar to the vnop_readdir entry point.
Execution Environment
The vnop_readdir_eofp entry point can be called from the process environment only.
Return Values
| Item | Description |
|---|---|
| Zero | Indicates a successful operation. |
| Nonzero | Indicates that the operation failed; return values should be chosen from the /usr/include/sys/errno.h file. |