man/man3rsm/rsm_memseg_import_set_mode.3rsm

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 RSM_MEMSEG_IMPORT_SET_MODE 3RSM "Jun 8, 2001"
 NAME
rsm_memseg_import_set_mode, rsm_memseg_import_get_mode - set or get mode for
barrier scoping
 SYNOPSIS

cc [ flag... ] file... -lrsm [ library... ]
#include <rsmapi.h>

int rsm_memseg_import_set_mode(rsm_memseg_import_handle_t memseg,
 rsm_barrier_mode_t mode);


int rsm_memseg_import_get_mode(rsm_memseg_import_handle_t memseg,
 rsm_barrier_mode_t *mode);


 DESCRIPTION

The rsm_memseg_import_set_mode() function provides support for optional
explicit barrier scoping in the functions described on the
rsm_memseg_import_get(3RSM) and rsm_memseg_import_put(3RSM) manual
pages.. The two valid barrier modes are RSM_BARRIER_MODE_EXPLICIT and
RSM_BARRIER_MODE_IMPLICIT. By default, the barrier mode is set to
RSM_BARRIER_MODE_IMPLICIT. When the mode is
RSM_BARRIER_MODE_IMPLICIT, an implicit barrier open and barrier close is
applied to the put operation. Irrespective of the mode set, the barrier must be
initialized using the rsm_memseg_import_init_barrier(3RSM) function
before any barrier operations, either implicit or explicit, are used.

The rsm_memseg_import_get_mode() function obtains the current value of
the mode used for barrier scoping in put functions.
 RETURN VALUES

Upon successful completion, these functions return 0. Otherwise, an error value
is returned to indicate the error.
 ERRORS

The rsm_memseg_import_set_mode() and rsm_memseg_import_get_mode()
functions can return the following errors:
RSMERR_BAD_SEG_HNDL

Invalid segment handle.


 ATTRIBUTES

See attributes(5) for descriptions of the following attributes:


ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Evolving
MT-Level MT-Safe


 SEE ALSO

rsm_memseg_import_get(3RSM), rsm_memseg_import_init_barrier(3RSM),
rsm_memseg_import_put(3RSM), attributes(5)