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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] .TH POOL_GET_BINDING 3POOL "January 18, 2020" .SH NAME pool_get_binding, pool_set_binding, pool_get_resource_binding \- set and query process to resource pool bindings .SH SYNOPSIS .nf cc [ \fIflag\fR\&.\|.\|. ] \fIfile\fR\&.\|.\|. \fB-lpool\fR [ \fIlibrary\fR\&.\|.\|. ] #include \fBchar *\fR\fBpool_get_binding\fR(\fBpid_t\fR \fIpid\fR); .fi .LP .nf \fBint\fR \fBpool_set_binding\fR(\fBconst char *\fR\fIpool\fR, \fBidtype_t\fR \fIidtype\fR, \fBid_t\fR \fIid\fR); .fi .LP .nf \fBchar *\fR\fBpool_get_resource_binding\fR(\fBconst char *\fR\fItype\fR, \fBpid_t\fR \fIpid\fR); .fi .SH DESCRIPTION The \fBpool_get_binding()\fR function returns the name of the pool on the running system that contains the set of resources to which the given process is bound. If no such pool exists on the system or the search returns more than one pool (since the set of resources is referred to by more than one pool), \fINULL\fR is returned and the pool error value is set to \fBPOE_INVALID_SEARCH\fR. .sp .LP It is possible that one of the resources to which the given process is bound is not associated with a pool. This could occur if a processor set was created with one of the \fBpset_()\fR functions and the process was then bound to that set. It could also occur if the process was bound to a resource set not currently associated with a pool, since resources can exist that are not associated with a pool. .sp .LP The \fBpool_set_binding()\fR function binds the processes matching \fIidtype\fR and \fIid\fR to the resources associated with \fIpool\fR on the running system. This function requires the privilege required by the underlying resource types referenced by the pool; generally, this requirement is equivalent to requiring superuser privilege. .sp .LP The \fIidtype\fR parameter can be one of the following types: .sp .ne 2 .na \fB\fBP_PID\fR\fR .ad .RS 12n The \fIid\fR parameter is a pid. .RE .sp .ne 2 .na \fB\fBP_TASKID\fR\fR .ad .RS 12n The \fIid\fR parameter is a taskid. .RE .sp .ne 2 .na \fB\fBP_PROJID\fR\fR .ad .RS 12n The \fIid\fR parameter is a project ID. All currently running processes belonging to the given project will be bound to the pool's resources. .RE .sp .LP The \fBpool_get_resource_binding()\fR function returns the name of the resource of the supplied type to which the supplied process is bound. .sp .LP The application must explicitly free the memory allocated for the return values for \fBpool_get_binding()\fR and \fBpool_get_resource_binding()\fR. .SH RETURN VALUES Upon successful completion, \fBpool_get_binding()\fR returns the name of the pool to which the process is bound. Otherwise it returns \fINULL\fR and \fBpool_error\fR(3POOL) returns the pool-specific error value. .sp .LP Upon successful completion, \fBpool_set_binding()\fR returns \fBPO_SUCCESS\fR. Otherwise, it returns \fBPO_FAIL\fR and \fBpool_error()\fR returns the pool-specific error value. .sp .LP Upon successful completion, \fBpool_get_resource_binding()\fR returns the name of the resource of the specified type to which the process is bound. Otherwise it returns \fINULL\fR and \fBpool_error()\fR returns the pool-specific error value. .SH ERRORS The \fBpool_get_binding()\fR function will fail if: .sp .ne 2 .na \fB\fBPOE_INVALID_CONF\fR\fR .ad .RS 22n The configuration is invalid. .RE .sp .ne 2 .na \fB\fBPOE_INVALID_SEARCH\fR\fR .ad .RS 22n It is not possible to determine the binding for this target due to the overlapping nature of the pools configured for this system, or the pool could not be located. .RE .sp .ne 2 .na \fB\fBPOE_SYSTEM\fR\fR .ad .RS 22n A system error has occurred. Check the system error code for more details. .RE .sp .LP The \fBpool_set_binding()\fR function will fail if: .sp .ne 2 .na \fB\fBPOE_INVALID_SEARCH\fR\fR .ad .RS 22n The pool could not be found. .RE .sp .ne 2 .na \fB\fBPOE_INVALID_CONF\fR\fR .ad .RS 22n The configuration is invalid. .RE .sp .ne 2 .na \fB\fBPOE_SYSTEM\fR\fR .ad .RS 22n A system error has occurred. Check the system error code for more details. .RE .sp .LP The \fBpool_get_resource_binding()\fR function will fail if: .sp .ne 2 .na \fB\fBPOE_INVALID_CONF\fR\fR .ad .RS 22n The configuration is invalid. .RE .sp .ne 2 .na \fB\fBPOE_INVALID_SEARCH\fR\fR .ad .RS 22n The target is not bound to a resource of the specified type. .RE .sp .ne 2 .na \fB\fBPOE_SYSTEM\fR\fR .ad .RS 22n A system error has occurred. Check the system error code for more details. .RE .SH EXAMPLES \fBExample 1 \fRBind the current process to the pool named "target". .sp .in +2 .nf #include #include #include \&... id_t pid = getpid(); \&... if (pool_set_binding("target", P_PID, pid) == PO_FAIL) \{ (void) fprintf(stderr, "pool binding failed (%d)\\n", pool_error()); \} .fi .in -2 .SH ATTRIBUTES See \fBattributes\fR(5) for descriptions of the following attributes: .sp .sp .TS box; c | c l | l . ATTRIBUTE TYPE ATTRIBUTE VALUE _ CSI Enabled _ Interface Stability Unstable _ MT-Level Safe .TE .SH SEE ALSO \fBlibpool\fR(3LIB), \fBpool_error\fR(3POOL), \fBattributes\fR(5)