Retrieve server attributes
Synopsis:
#include <sys/iomgr.h>
int iofdinfo( int filedes,
unsigned flags,
struct _fdinfo * info,
char * path,
int maxlen );
Arguments:
- filedes
- A file descriptor for the connection that you want to query.
- flags
- Specify _FDINFO_FLAG_LOCALPATH to
return only the local path info (i.e. exclude the network path info).
- info
- NULL, or a pointer to an _fdinfo structure
that contains the connection information defined in
<sys/iomgr.h>.
Specify NULL if it's not required.
- path
- A pointer to a buffer where the function can store the path associated
with the file descriptor.
You can specify NULL if it's not required.
- maxlen
- The length of the buffer pointed to by path.
If the given length is too small to hold the entire pathname, the pathname is truncated.
Library:
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
Description:
The iofdinfo() function retrieves the server's attribute information
for the connection referred to by filedes.
Returns:
The size of the buffer needed to store the path, which is equal to
the length of the filedes pathname plus one (for the null-terminator), or -1 if an error occurs
(errno is set).
Errors:
- EFAULT
- A fault occurred in the server's address space when it tried to access the caller's message buffers.
- EMSGSIZE
- Insufficient space is available in the server's buffer for the _fdinfo data structure.
Classification:
QNX Neutrino
| Safety: |
|
|---|
| Cancellation point |
No |
| Interrupt handler |
No |
| Signal handler |
Yes |
| Thread |
Yes |