svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
scf_iter_snaplevel_pgs(3scf)
sc...ate(3SCF) Service Configuration Facility Library Functions sc...ate(3SCF)
NAME
scf_iter_create, scf_iter_handle, scf_iter_destroy, scf_iter_reset,
scf_iter_handle_scopes, scf_iter_scope_services, scf_iter_service_in‐
stances, scf_iter_service_pgs, scf_iter_service_pgs_typed, scf_iter_in‐
stance_snapshots, scf_iter_snaplevel_pgs, scf_iter_snaplevel_pgs_typed,
scf_iter_instance_pgs, scf_iter_instance_pgs_typed, scf_iter_in‐
stance_pgs_composed, scf_iter_instance_pgs_typed_composed,
scf_iter_pg_pgs, scf_iter_pg_pgs_typed, scf_iter_pg_pgs_composed,
scf_iter_pg_pgs_typed_composed, scf_iter_pg_properties, scf_iter_prop‐
erty_values, scf_iter_next_scope, scf_iter_next_service,
scf_iter_next_instance, scf_iter_next_snapshot, scf_iter_next_pg,
scf_iter_next_property, scf_iter_next_value - iterate through the Ser‐
vice Configuration Facility repository
SYNOPSIS
cc [ flag... ] file... -lscf [ library... ]
#include <libscf.h>
scf_iter_t *scf_iter_create(scf_handle_t *handle);
scf_handle_t *scf_iter_handle(scf_iter_t *iter);
void scf_iter_destroy(scf_iter_t *iter);
void scf_iter_reset(scf_iter_t *iter);
int scf_iter_handle_scopes(scf_iter_t *iter, const scf_handle_t *h);
int scf_iter_scope_services(scf_iter_t *iter, const scf_scope_t *parent);
int scf_iter_service_instances(scf_iter_t *iter,
const scf_service_t *parent);
int scf_iter_service_pgs(scf_iter_t *iter, const scf_service_t *parent);
int scf_iter_service_pgs_typed(scf_iter_t *iter,
const scf_service_t *parent, const char *pgtype);
int scf_iter_instance_snapshots(scf_iter_t *iter,
const scf_instance_t *parent);
int scf_iter_snaplevel_pgs(scf_iter_t *iter,
const scf_snaplevel_t *parent);
int scf_iter_snaplevel_pgs_typed(scf_iter_t *iter,
const scf_snaplevel_t *parent, const char *pgtype);
int scf_iter_instance_pgs(scf_iter_t *iter, scf_instance_t *parent);
int scf_iter_instance_pgs_typed(scf_iter_t *iter,
scf_instance_t *parent, const char *pgtype);
int scf_iter_instance_pgs_composed(scf_iter_t *iter,
const scf_instance_t *instance, const scf_snapshot_t *snapshot);
int scf_iter_instance_pgs_typed_composed(scf_iter_t *iter,
const scf_instance_t *instance, const scf_snapshot_t *snapshot,
const char *pgtype);
int scf_iter_pg_pgs(scf_iter_t *iter,
scf_propertygroup_t *pg);
int scf_iter_pg_pgs_typed(scf_iter_t *iter,
scf_propertygroup_t *pg, const char *pgtype);
int scf_iter_pg_pgs_composed(scf_iter_t *iter,
scf_propertygroup_t *pg, scf_snapshot_t *snapshot);
int scf_iter_pg_pgs_typed_composed(scf_iter_t *iter,
scf_propertygroup_t *pg,
scf_snapshot_t *snapshot, const char *pgtype);
int scf_iter_pg_properties(scf_iter_t *iter,
const scf_propertygroup_t *parent);
int scf_iter_property_values(scf_iter_t *iter,
const scf_property_t *parent);
int scf_iter_next_scope(scf_iter_t *iter, scf_scope_t *out);
int scf_iter_next_service(scf_iter_t *iter, scf_service_t *out);
int scf_iter_next_instance(scf_iter_t *iter, scf_instance_t *out);
int scf_iter_next_snapshot(scf_iter_t *iter, scf_snapshot_t *out);
int scf_iter_next_pg(scf_iter_t *iter, scf_propertygroup_t *out);
int scf_iter_next_property(scf_iter_t *iter, scf_property_t *out);
int scf_iter_next_value(scf_iter_t *iter, scf_value_t *out);
DESCRIPTION
The scf_iter_create() function creates a new iterator associated with
handle.
The scf_iter_destroy() function destroys an iteration. The scf_error()
function is not modified by this call.
The scf_iter_reset() function releases any resources involved with an
active iteration, and returns the iterator to its initial state.
The scf_iter_handle_scopes(), scf_iter_scope_services(), scf_iter_ser‐
vice_instances(), scf_iter_instance_snapshots(), scf_iter_ser‐
vice_pgs(), scf_iter_instance_pgs(), scf_iter_pg_pgs(),
scf_iter_snaplevel_pgs(), scf_iter_pg_properties(), and scf_iter_prop‐
erty_values() functions each set up a new iteration.
The scf_iter_handle_scopes() function sets up an iterator of all scopes
for a given handle.
The scf_iter_scope_services() function sets up an iterator of all ser‐
vices for a given scope.
The scf_iter_service_instances() function sets up an iterator of all
instances for a given service.
The scf_iter_instance_snapshots() function sets up an iterator of all
snapshots for a given instance.
The scf_iter_service_pgs() function sets up an iterator of all property
groups for a given service.
The scf_iter_instance_pgs() function sets up an iterator of all prop‐
erty groups for a given instance.
The scf_iter_pg_pgs() function sets up an iterator of all property
groups that directly parented by the given property group. Therefore,
only those property groups at the next level are considered.
The scf_iter_pg_properties() function sets up an iterator of all prop‐
erties for a given property group.
The scf_iter_property_values() function sets up an iterator of all val‐
ues for a given property (in the order in which they are specified with
scf_entry_add_value(3SCF)).
The scf_iter_service_pgs_typed(), scf_iter_instance_pgs_typed(),
scf_iter_pg_pgs_typed(), and scf_iter_snaplevel_pgs_typed() functions
iterate over the child property groups of the parent, but restrict them
to a particular property group type. The scf_iter_pg_pgs_typed() func‐
tion will iterate over the property groups directly parented by the
given property group. Therefore, only those property groups at the next
level are considered.
The scf_iter_instance_pgs_composed() and scf_iter_pg_pgs_composed()
functions set up a new iteration of the composed view of an instance or
a property group's children at the time the snapshot is taken. If the
snapshot is NULL, the current properties are used.
The composed view of properties is the union of properties of the in‐
stance and its ancestors within any given property group. Properties of
the instance take precedence over properties of the service with the
same name and ancestry. Properties and property groups retrieved with
this iterator might not have the instance as their ancestor if they ex‐
ist only in the service. If the instance and its parent have property
groups with the same name but different types, the properties in the
property group of the parent are excluded.
The scf_iter_instance_pgs_typed_composed() and
scf_iter_pg_pgs_typed_composed() functions behave as scf_iter_in‐
stance_pgs_composed() and scf_iter_pg_pgs_composed() respectively, ex‐
cept only the property groups of the type pgtype are returned. The
scf_iter_pg_pgs_composed() and scf_iter_pg_pgs_typed_composed() func‐
tions will iterate over the property groups directly parented by the
given property group. Therefore, only those property groups at the next
level are considered.
The scf_iter_next_scope(), scf_iter_next_service(), scf_iter_next_in‐
stance(), scf_iter_next_snapshot(), scf_iter_next_pg(),
scf_iter_next_property(), and scf_iter_next_value() functions retrieve
the next element of the iteration.
RETURN VALUES
Upon successful completion, the scf_iter_create() function returns a
pointer to a new iterator. Otherwise, it returns NULL.
Upon successful completion, the scf_iter_handle() function returns the
handle associated with iter. Otherwise, it returns NULL.
Upon successful completion, the scf_iter_handle_scopes(),
scf_iter_scope_services(), scf_iter_service_instances(), scf_iter_in‐
stance_snapshots(), scf_iter_service_pgs(), scf_iter_instance_pgs(),
scf_iter_pg_pgs(), scf_iter_snaplevel_pgs(), scf_iter_pg_properties(),
scf_iter_property_values(), scf_iter_service_pgs_typed(), scf_iter_in‐
stance_pgs_composed(), scf_iter_instance_pgs_typed(), scf_iter_in‐
stance_pgs_typed_composed(), scf_iter_pg_pgs_typed(),
scf_iter_pg_pgs_composed(), scf_iter_pg_pgs_typed_composed(), and
scf_iter_snaplevel_pgs_typed() functions return 0. Otherwise, they re‐
turn -1.
Upon successful completion, the scf_iter_next_scope(),
scf_iter_next_service(), scf_iter_next_instance(), scf_iter_next_snap‐
shot(), scf_iter_next_pg(), scf_iter_next_property(), and
scf_iter_next_value() functions return 1. If the iterator is complete,
the functions return 0. Otherwise, they return -1.
ERRORS
The scf_iter_create() function will fail if:
SCF_ERROR_INVALID_ARGUMENT The handle argument is NULL.
SCF_ERROR_NO_MEMORY There is no memory available.
SCF_ERROR_NO_RESOURCES The server does not have adequate re‐
sources for a new iteration.
The scf_iter_handle() function will fail if:
SCF_ERROR_HANDLE_DESTROYED The handle associated with iter is de‐
stroyed.
The scf_iter_next_value() function will fail if:
SCF_ERROR_PERMISSION_DENIED
The value cannot be read due to access restrictions.
The scf_iter_handle_scopes(), scf_iter_scope_services(), scf_iter_ser‐
vice_instances(), scf_iter_instance_snapshots(), scf_iter_ser‐
vice_pgs(), scf_iter_instance_pgs(), scf_iter_instance_pgs_composed(),
scf_iter_pg_pgs(), scf_iter_pg_pgs_composed(),
scf_iter_snaplevel_pgs(), scf_iter_pg_properties(), scf_iter_prop‐
erty_values(), scf_iter_service_pgs_typed(), scf_iter_in‐
stance_pgs_typed(), scf_iter_instance_pgs_typed_composed(),
scf_iter_pg_pgs_typed(), scf_iter_pg_pgs_typed_composed(), and
scf_iter_snaplevel_pgs_typed() functions will fail if:
SCF_ERROR_DELETED
The parent is deleted.
SCF_ERROR_NOT_SET
The parent is not set.
SCF_ERROR_NOT_BOUND
The handle is not bound.
SCF_ERROR_CONNECTION_BROKEN
The connection to the repository is lost.
SCF_ERROR_HANDLE_MISMATCH
The iter and parent arguments are not derived from the same handle.
The scf_iter_service_pgs_typed(), scf_iter_instance_pgs_typed(),
scf_iter_instance_pgs_typed_composed(), scf_iter_pg_pgs_typed(),
scf_iter_pg_pgs_typed_composed(), and scf_iter_snaplevel_pgs_typed()
functions will fail if:
SCF_ERROR_INVALID_ARGUMENT The pgtype argument is not a valid prop‐
erty group type.
The scf_iter_next_service(), scf_iter_next_instance(),
scf_iter_next_snapshot(), scf_iter_next_pg(), scf_iter_next_property(),
and scf_iter_next_value() functions will fail if:
SCF_ERROR_DELETED The parent that the iterator is attached to, is
deleted.
The scf_iter_next_scope(), scf_iter_next_service(), scf_iter_next_in‐
stance(), scf_iter_next_snapshot(), scf_iter_next_pg(),
scf_iter_next_property(), and scf_iter_next_value() functions will fail
if:
SCF_ERROR_NOT_SET
The iterator is not set.
SCF_ERROR_INVALID_ARGUMENT
The requested object type does not match the type the iterator is
walking.
SCF_ERROR_NOT_BOUND
The handle is not bound.
SCF_ERROR_HANDLE_MISMATCH
The iter and parent arguments are not derived from the same handle.
SCF_ERROR_CONNECTION_BROKEN
The connection to the repository is lost.
The scf_iter_scope_services(), scf_iter_service_instances(),
scf_iter_service_pgs(), scf_iter_instance_snapshots(), scf_iter_in‐
stance_snapshots(), scf_iter_instance_pgs_composed(),
scf_iter_pg_pgs(), scf_iter_pg_pgs_composed(),
scf_iter_snaplevel_pgs(), scf_iter_pg_properties(), scf_iter_prop‐
erty_values(), scf_iter_service_pgs_typed(), scf_iter_in‐
stance_pgs_typed(), scf_iter_instance_pgs_typed_composed(),
scf_iter_pg_pgs_typed(), scf_iter_pg_pgs_typed_composed(),
scf_iter_snaplevel_pgs_typed(), scf_iter_next_service(),
scf_iter_next_instance(), scf_iter_next_snapshot(), scf_iter_next_pg(),
and scf_iter_next_property() functions will fail if:
SCF_ERROR_NO_RESOURCES The server does not have the resources to
complete the request.
The scf_error(3SCF) function can be used to retrieve the error value.
EXAMPLES
Example 1 Iterate Overall Instances Under a Service.
scf_iter_t *iter = scf_iter_create(handle);
if (iter == NULL || scf_iter_service_instances(iter, parent) == -1) {
/* failure */
}
while ((r = scf_iter_next_instance(iter, child)) > 0) {
/* process child */
}
if (r < 0) {
/* failure */
}
scf_iter_destroy(iter);
Example 2 Connect to the Repository, walk all Services and Instances
and Print their FMRIs.
scf_handle_t *handle = scf_handle_create(SCF_VERSION);
scf_scope_t *scope = scf_scope_create(handle);
scf_service_t *svc = scf_service_create(handle);
scf_instance_t *inst = scf_instance_create(handle);
scf_iter_t *svc_iter = scf_iter_create(handle);
scf_iter_t *inst_iter = scf_iter_create(handle);
size_t sz = scf_limit(SCF_LIMIT_MAX_FMRI_LENGTH) + 1;
char *fmri = malloc(sz + 1);
int r;
if (handle == NULL || scope == NULL || svc == NULL ||
inst == NULL || svc_iter == NULL || inst_iter == NULL ||
fmri == NULL) {
/* failure */
}
if (scf_handle_bind(handle) == -1 ||
scf_handle_get_scope(handle, SCF_SCOPE_LOCAL, scope) == -1 ||
scf_iter_scope_services(svc_iter, scope) ==-1) {
/* failure */
}
while ((r = scf_iter_next_service(svc_iter, svc)) > 0) {
if (scf_service_to_fmri(svc, fmri, sz) < 0) {
/* failure */
}
puts(fmri);
if (scf_iter_service_instances(inst_iter, svc) < 0) {
/* failure */
}
while ((r = scf_iter_next_instance(inst_iter, inst)) > 0) {
if (scf_instance_to_fmri(inst, fmri, sz) < 0) {
/* failure */
}
puts(fmri);
}
if (r < 0)
break;
}
if (r < 0) {
/* failure */
}
scf_handle_destroy(handle);
scf_scope_destroy(scope);
scf_service_destroy(svc);
scf_instance_destroy(inst);
scf_iter_destroy(svc_iter);
scf_iter_destroy(inst_iter);
Example 3 walk All Property Groups and Print their FMRIs.
int print_all_pgs(scf_handle_t *h, scf_propertygroup_t *parent_pg)
{
scf_iter_t *iter = NULL;
scf_propertygroup_t *pg = NULL;
if (((pg = scf_pg_create(h)) == NULL) ||
((iter = scf_iter_create(h)) == NULL))
/* failure */
}
/* this fails when there are no child pgs, so return */
if (scf_iter_pg_pgs(iter, parent_pg, NULL) != 0)
return (0);
while (scf_iter_next_pg(iter, pg) > 0) {
size_t sz = scf_limit(SCF_LIMIT_MAX_FMRI_LENGTH) + 1;
char *fmri = malloc(sz + 1);
if (scf_pg_to_fmri(pg, fmri, sz) < 0)
/* failure */
puts(fmri);
if (print_all_pgs(h, pg) != 0)
/* failure */
free(fmri);
}
scf_pg_destroy(pg);
scf_iter_destroy(iter);
return (0);
}
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 _ Interface StabilityCommitted _ MT-LevelSafe
SEE ALSO
libscf(3LIB), scf_entry_add_value(3SCF), scf_error(3SCF), scf_han‐
dle_create(3SCF), attributes(7)
Oracle Solaris 11.4 14 Aug 2017 sc...ate(3SCF)