2 .\" Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
3 .\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
4 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
5 .\" When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
6 .TH POOL_GET_BINDING 3POOL "Mar 27, 2007"
8 pool_get_binding, pool_set_binding, pool_get_resource_binding \- set and query
9 process to resource pool bindings
13 cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-lpool\fR [ \fIlibrary\fR\&.\|.\|. ]
16 \fBchar *\fR\fBpool_get_binding\fR(\fBpid_t\fR \fIpid\fR);
21 \fBint\fR \fBpool_set_binding\fR(\fBconst char *\fR\fIpool\fR, \fBidtype_t\fR \fIidtype\fR,
27 \fBchar *\fR\fBpool_get_resource_binding\fR(\fBconst char *\fR\fItype\fR, \fBpid_t\fR \fIpid\fR);
33 The \fBpool_get_binding()\fR function returns the name of the pool on the
34 running system that contains the set of resources to which the given process is
35 bound. If no such pool exists on the system or the search returns more than one
36 pool (since the set of resources is referred to by more than one pool),
37 \fINULL\fR is returned and the pool error value is set to
38 \fBPOE_INVALID_SEARCH\fR.
41 It is possible that one of the resources to which the given process is bound is
42 not associated with a pool. This could occur if a processor set was created
43 with one of the \fBpset_()\fR functions and the process was then bound to that
44 set. It could also occur if the process was bound to a resource set not
45 currently associated with a pool, since resources can exist that are not
46 associated with a pool.
49 The \fBpool_set_binding()\fR function binds the processes matching \fIidtype\fR
50 and \fIid\fR to the resources associated with \fIpool\fR on the running system.
51 This function requires the privilege required by the underlying resource types
52 referenced by the pool; generally, this requirement is equivalent to requiring
56 The \fIidtype\fR parameter can be of the following types:
63 The \fIid\fR parameter is a pid.
72 The \fIid\fR parameter is a taskid.
81 The \fIid\fR parameter is a project ID. All currently running processes
82 belonging to the given project will be bound to the pool's resources.
87 The \fBpool_get_resource_binding()\fR function returns the name of the resource
88 of the supplied type to which the supplied process is bound.
91 The application must explicity free the memory allocated for the return values
92 for \fBpool_get_binding()\fR and \fBpool_get_resource_binding()\fR.
96 Upon successful completion, \fBpool_get_binding()\fR returns the name of the
97 pool to which the process is bound. Otherwise it returns \fINULL\fR and
98 \fBpool_error\fR(3POOL) returns the pool-specific error value.
101 Upon successful completion, \fBpool_set_binding()\fR returns \fBPO_SUCCESS\fR.
102 Otherwise, it returns \fBPO_FAIL\fR and \fBpool_error()\fR returns the
103 pool-specific error value.
106 Upon successful completion, \fBpool_get_resource_binding()\fR returns the name
107 of the resource of the specified type to which the process is bound. Otherwise
108 it returns \fINULL\fR and \fBpool_error()\fR returns the pool-specific error
113 The \fBpool_get_binding()\fR function will fail if:
117 \fB\fBPOE_INVALID_CONF\fR\fR
120 The configuration is invalid.
126 \fB\fBPOE_INVALID_SEARCH\fR\fR
129 It is not possible to determine the binding for this target due to the
130 overlapping nature of the pools configured for this system, or the pool could
137 \fB\fBPOE_SYSTEM\fR\fR
140 A system error has occurred. Check the system error code for more details.
145 The \fBpool_set_binding()\fR function will fail if:
149 \fB\fBPOE_INVALID_SEARCH\fR\fR
152 The pool could not be found.
158 \fB\fBPOE_INVALID_CONF\fR\fR
161 The configuration is invalid.
167 \fB\fBPOE_SYSTEM\fR\fR
170 A system error has occurred. Check the system error code for more details.
175 The \fBpool_get_resource_binding()\fR function will fail if:
179 \fB\fBPOE_INVALID_CONF\fR\fR
182 The configuration is invalid.
188 \fB\fBPOE_INVALID_SEARCH\fR\fR
191 The target is not bound to a resource of the specified type.
197 \fB\fBPOE_SYSTEM\fR\fR
200 A system error has occurred. Check the system error code for more details.
205 \fBExample 1 \fRBind the current process to the pool named "target".
209 #include <sys/types.h>
219 if (pool_set_binding("target", P_PID, pid) == PO_FAIL) \{
220 (void) fprintf(stderr, "pool binding failed (\\%d)\\B{}n",
229 See \fBattributes\fR(5) for descriptions of the following attributes:
237 ATTRIBUTE TYPE ATTRIBUTE VALUE
241 Interface Stability Unstable
249 \fBlibpool\fR(3LIB), \fBpool_error\fR(3POOL), \fBattributes\fR(5)