iofunc_chown_default()

Default handler for _IO_CHOWN messages

Synopsis:

#include <sys/iofunc.h>

int iofunc_chown_default( resmgr_context_t *ctp,
                          io_chown_t *msg,
                          iofunc_ocb_t *ocb );

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_chown_t structure that contains the message that the resource manager received. For more information, see the documentation for iofunc_chown().

ocb

A pointer to the iofunc_ocb_t structure for the Open Control Block that was created when the client opened the resource.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The iofunc_chown_default() function implements POSIX semantics for the client's chown() call, which is received as an _IO_CHOWN message by the resource manager.

You can place this function directly into the io_funcs table passed to resmgr_attach(), at the chown position, or you can call iofunc_func_init() to initialize all of the functions to their default values.

The iofunc_chown_default() function calls iofunc_chown() to do the actual work.

Returns:

EOK

Successful completion.

EROFS

An attempt was made to chown on a read-only filesystem.

EACCES

The client doesn't have permissions to do the operation.

EPERM

The group ID or owner ID didn't match.

Classification:

QNX Neutrino

See also:

iofunc_chown(), iofunc_func_init(), iofunc_ocb_t, iofunc_time_update(), resmgr_attach(), resmgr_context_t, resmgr_io_funcs_t

Writing a Resource Manager

Resource Managers chapter of Getting Started with QNX Neutrino