| Updated: April 19, 2023 |
Initialize the per-name attribute structure associated with a device
#include <sys/iofunc.h>
void iofunc_attr_init_sized ( iofunc_attr_t *attr,
mode_t mode,
iofunc_attr_t *dattr,
struct _client_info *info,
size_t size );
#define iofunc_attr_init(attr, mode, dattr, info) ...
In general, there isn't a “correct” set of permissions to use; you should restrict them according to what you want other processes and users to be able to do with your resource manager.
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The iofunc_attr_init() and iofunc_attr_init_sized() functions initialize the per-name attributes that a resource manager associates with a device.
These functions initialize the iofunc_attr_t structure pointed to by attr with the information derived from the optional dattr, the mode, and the user and group IDs from the optional info client information structure.
The count, rcount, wcount, rlocks and wlocks counters are reset to zero.
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Yes |