Warning: main(/www/www/htdocs/style/globals.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/r/resmgr_io_funcs_t.html on line 1

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/globals.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/r/resmgr_io_funcs_t.html on line 1

Warning: main(/www/www/htdocs/style/header.php) [function.main]: failed to open stream: No such file or directory in /www/www/docs/6.4.1/neutrino/lib_ref/r/resmgr_io_funcs_t.html on line 8

Warning: main() [function.include]: Failed opening '/www/www/htdocs/style/header.php' for inclusion (include_path='.:/www/www/common:/www/www/php/lib/php') in /www/www/docs/6.4.1/neutrino/lib_ref/r/resmgr_io_funcs_t.html on line 8

`resmgr_io_funcs_t`

Table of POSIX-level I/O functions

Synopsis:

#include <sys/resmgr.h>

typedef struct _resmgr_io_funcs {
   unsigned nfuncs;
   int (*read)      (resmgr_context_t *ctp, io_read_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*write)     (resmgr_context_t *ctp, io_write_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*close_ocb) (resmgr_context_t *ctp, void *reserved,
                     RESMGR_OCB_T *ocb);
   int (*stat)      (resmgr_context_t *ctp, io_stat_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*notify)    (resmgr_context_t *ctp, io_notify_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*devctl)    (resmgr_context_t *ctp, io_devctl_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*unblock)   (resmgr_context_t *ctp, io_pulse_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*pathconf)  (resmgr_context_t *ctp, io_pathconf_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*lseek)     (resmgr_context_t *ctp, io_lseek_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*chmod)     (resmgr_context_t *ctp, io_chmod_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*chown)     (resmgr_context_t *ctp, io_chown_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*utime)     (resmgr_context_t *ctp, io_utime_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*openfd)    (resmgr_context_t *ctp, io_openfd_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*fdinfo)    (resmgr_context_t *ctp, io_fdinfo_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*lock)      (resmgr_context_t *ctp, io_lock_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*space)     (resmgr_context_t *ctp, io_space_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*shutdown)  (resmgr_context_t *ctp, io_shutdown_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*mmap)      (resmgr_context_t *ctp, io_mmap_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*msg)       (resmgr_context_t *ctp, io_msg_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*reserved)  (resmgr_context_t *ctp, void *msg,
                     RESMGR_OCB_T *ocb);
   int (*dup)       (resmgr_context_t *ctp, io_dup_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*close_dup) (resmgr_context_t *ctp, io_close_t *msg,
                     RESMGR_OCB_T *ocb);
   int (*lock_ocb)  (resmgr_context_t *ctp, void *reserved,
                     RESMGR_OCB_T *ocb);
   int (*unlock_ocb)(resmgr_context_t *ctp, void *reserved,
                     RESMGR_OCB_T *ocb);
   int (*sync)      (resmgr_context_t *ctp, io_sync_t *msg,
                     RESMGR_OCB_T *ocb);
} resmgr_io_funcs_t;

Description:

The resmgr_connect_funcs_t structure is a table of the POSIX-level I/O functions that are used by a resource manager. You can initialize this table by calling iofunc_func_init() and then overriding the defaults with your own functions.

This structure includes nfuncs, which indicates how many functions are in the table (in case the structure grows in the future), along with these functions:

Member:	Used to:	Default:
read	Handle _IO_READ messages	iofunc_read_default()
write	Handle _IO_WRITE messages	iofunc_write_default()
close_ocb	Return the memory allocated for an OCB	iofunc_close_ocb_default()
stat	Handle _IO_STAT messages	iofunc_stat_default()
notify	Handle _IO_NOTIFY messages	None
devctl	Handle _IO_DEVCTL messages	iofunc_devctl_default()
unblock	Unblock the resource if an operation is aborted	iofunc_unblock_default()
pathconf	Handle _IO_PATHCONF messages	iofunc_pathconf_default()
lseek	Handle _IO_LSEEK messages	iofunc_lseek_default()
chmod	Handle _IO_CHMOD messages	iofunc_chmod_default()
chown	Handle _IO_CHOWN messages	iofunc_chown_default()
utime	Handle _IO_UTIME messages	iofunc_utime_default()
openfd	Handle _IO_OPENFD messages	iofunc_openfd_default()
fdinfo	Handle _IO_FDINFO messages	iofunc_fdinfo_default()
lock	Handle _IO_LOCK messages	iofunc_lock_default()
space	Allocate or free memory for the resource.	None
shutdown	Reserved	None
mmap	Handle _IO_MMAP messages	iofunc_mmap_default()
msg	Handle a more general messaging scheme to control the device	None
reserved	Not applicable	None
dup	Handle _IO_DUP messages	None — handled by the base layer
close_dup	Handle _IO_CLOSE messages	iofunc_close_dup_default()
lock_ocb	Lock the attributes for a group of messages	iofunc_lock_ocb_default()
unlock_ocb	Unlock the attributes for a group of messages	iofunc_unlock_ocb_default()
sync	Handle _IO_SYNC messages	iofunc_sync_default()

If you use iofunc_lock_default(), you must also use iofunc_close_dup_default() and iofunc_unblock_default().

Classification:

QNX Neutrino

resmgr_io_funcs_t

Synopsis:

Description:

Classification:

See also:

`resmgr_io_funcs_t`