Verify the attributes being used to read a link
Synopsis:
#include <sys/iofunc.h>
int iofunc_readlink( resmgr_context_t *ctp,
io_readlink_t *msg,
iofunc_attr_t *attr,
struct _client_info *info );
Arguments:
- ctp
- A pointer to a
resmgr_context_t
structure that the resource-manager library uses to pass context information
between functions.
- msg
- A pointer to the io_readlink_t
structure that contains the message that the resource manager received.
- attr
- A pointer to the
iofunc_attr_t
structure that describes the characteristics of the device that's
associated with your resource manager.
- info
- A pointer to a _client_info structure that contains the
information about a client connection.
For information about this structure, see
ConnectClientInfo().
Library:
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
Description:
The iofunc_readlink() helper function supports
readlink()
requests by verifying that attr isn't NULL, and that it refers to a symbolic link.
Returns:
- EBADFSYS
- The attr argument is NULL.
- EINVAL
- The iofunc_attr_t structure doesn't refer to a symbolic link.
- EOK
- Successful completion.
Classification:
QNX Neutrino
| Safety: |
|
|---|
| Cancellation point |
No |
| Interrupt handler |
No |
| Signal handler |
Yes |
| Thread |
Yes |