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Return the memory allocated for an OCB
#include <sys/iofunc.h>
int iofunc_close_ocb_default( resmgr_context_t* ctp,
void* reserved,
iofunc_ocb_t* ocb );
- ctp
- A pointer to a
resmgr_context_t
structure that the resource-manager library uses to pass context information
between functions.
- reserved
- This argument must be passed as NULL.
- ocb
- A pointer to the
iofunc_ocb_t
structure for the Open Control Block that was created when the
client opened the resource.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
The iofunc_close_ocb_default() function detaches the OCB specified
by ocb, and releases the memory associated with it.
You can place this function directly into the io_funcs
table passed to
resmgr_attach(),
at the close_ocb position, or you can call
iofunc_func_init()
to initialize all of the functions to their default values.
|
This function assumes that ocb points to an iofunc_ocb_t.
If you encapsulate iofunc_ocb_t in your own OCB, it
must be the first field of your OCB; otherwise, you can't call this function.
If you provide an ocb_free() function in the
mount structure, it's called at this point. This means
that at least the iofunc_ocb_t portion of your OCB is no longer
valid after iofunc_close_ocb() returns. |
The iofunc_close_ocb_default() function calls
iofunc_close_ocb()
to do the actual work.
- EOK
- Success.
QNX Neutrino
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
iofunc_close_ocb(),
iofunc_func_init(),
iofunc_ocb_t,
iofunc_time_update(),
resmgr_attach(),
resmgr_context_t,
resmgr_io_funcs_t
Writing a Resource Manager
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