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pool_get_resource(3pool)
Pool Configuration Manipulation Library Functions pool_get_pool(3POOL)
NAME
pool_get_pool, pool_get_resource, pool_query_components,
pool_query_pools, pool_query_resources - retrieve resource pool config‐
uration elements
SYNOPSIS
cc [ flag]... file... -lpool [ library... ]
#include <pool.h>
pool_t *pool_get_pool(pool_conf_t *conf, const char *name);
pool_resource_t *pool_get_resource(pool_conf_t *conf,
const char *type, const char *name);
pool_component_t **pool_query_components(pool_conf_t *conf,
uint_t *nelem, pool_value_t **props);
pool_t **pool_query_pools(pool_conf_t *conf, uint_t *nelem,
pool_value_t **props);
pool_resource_t **pool_query_resources(pool_conf_t *conf,
uint_t *nelem, pool_value_t **props);
DESCRIPTION
These functions provide a means for querying the contents of the speci‐
fied configuration. The conf argument for each function refers to the
target configuration to which the operation applies.
The pool_get_pool() function returns the pool with the given name from
the provided configuration.
The pool_get_resource() function returns the resource with the given
name and type from the provided configuration. The only resource type
is pset.
The pool_query_components() function retrieves all components that
match the given list of properties. Components represent CPUS. If the
list of properties is NULL, all components are returned. The number of
elements returned is stored in the location pointed to by nelem. The
value returned by pool_query_components() is allocated with malloc(3C)
and must be explicitly freed.
The pool_query_pools() function behaves similarly to pool_query_compo‐
nents() and returns the list of pools that match the given list of
properties. The value returned must be freed by the caller.
The pool_query_resources() function similarly returns the list of
resources that match the given list of properties. The return value
must be freed by the caller.
RETURN VALUES
The pool_get_pool() and pool_get_resource() functions return the match‐
ing pool and resource, respectively. Otherwise, they return NULL and
pool_error(3POOL) returns the pool-specific error value.
The pool_query_components(), pool_query_pools(), and
pool_query_resources() functions return a null-terminated array of com‐
ponents, pools, and resources, respectively. If the query was unsuc‐
cessful or there were no matches, NULL is returned and pool_error()
returns the pool-specific error value.
ERRORS
The pool_get_pool() will fail if:
POE_BADPARAM The supplied configuration's status is not POF_VALID.
The pool_get_resource() will fail if:
POE_BADPARAM The supplied configuration's status is not POF_VALID.
POE_SYSTEM There is not enough memory available to allocate work‐
ing buffers. Check errno for the specific system error
code.
The pool_query_components(), pool_query_pools(), and
pool_query_resources() will fail if:
POE_BADPARAM The supplied configuration's status is not
POF_VALID.
POE_INVALID_CONF The query generated results that were not of the
correct type. The configuration is invalid.
POE_SYSTEM There is not enough memory available to allocate
working buffers. Check errno for the specific sys‐
tem error code.
EXAMPLES
Example 1 Retrieve the pool named "foo" from a given configuration.
#include <pool.h>
#include <stdio.h>
...
pool_conf_t *conf;
pool_t *pool;
...
if ((pool = pool_get_pool(conf, "foo")) == NULL) {
(void) fprintf(stderr, "Cannot retrieve pool named
'foo'\n");
...
}
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ CSIEnabled _ Interface StabilityUncommitted _ MT-Level‐
Safe
SEE ALSO
libpool(3LIB), pool_error(3POOL), attributes(7)
Oracle Solaris 11.4 2 Feb 2015 pool_get_pool(3POOL)