pool_get_binding(3POOL) 			 Pool Configuration Manipulation Library Functions			   pool_get_binding(3POOL)

NAME

       pool_get_binding, pool_set_binding, pool_get_resource_binding - set and query process to resource pool bindings

SYNOPSIS

       cc [ flag... ] file... -lpool [ library... ]
       #include <pool.h>

       char *pool_get_binding(pid_t pid);

       int pool_set_binding(const char *pool, idtype_t idtype,
	    id_t id);

       char *pool_get_resource_binding(const char *type, pid_t pid);

DESCRIPTION

       The  pool_get_binding()	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), NULL is	returned and the pool error value is set to POE_INVALID_SEARCH.

       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 pset_() 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.

       The  pool_set_binding()	function  binds  the processes matching idtype and id to the resources associated with pool 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.

       The idtype parameter can be of the following types:

       P_PID	   The id parameter is a pid.

       P_TASKID    The id parameter is a taskid.

       P_PROJID    The	id  parameter  is a project ID. All currently running processes belonging to the given project will be bound to the pool's
		   resources.

       The pool_get_resource_binding() function returns the name of the resource of the supplied type to which the supplied process is bound.

       The application must explicity free the memory allocated for the return values for pool_get_binding() and pool_get_resource_binding().

RETURN VALUES

       Upon successful completion, pool_get_binding() returns the name of the pool to which the process is bound. Otherwise it	returns  NULL  and
       pool_error(3POOL) returns the pool-specific error value.

       Upon successful completion, pool_set_binding() returns PO_SUCCESS. Otherwise, it returns PO_FAIL and pool_error() returns the pool-specific
       error value.

       Upon successful completion, pool_get_resource_binding() returns the name of the resource of the specified type  to  which  the  process	is
       bound. Otherwise it returns NULL and pool_error() returns the pool-specific error value.

ERRORS

       The pool_get_binding() function will fail if:

       POE_INVALID_CONF      The configuration is invalid.

       POE_INVALID_SEARCH    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.

       POE_SYSTEM	     A system error has occurred. Check the system error code for more details.

       The pool_set_binding() function will fail if:

       POE_INVALID_SEARCH    The pool could not be found.

       POE_INVALID_CONF      The configuration is invalid.

       POE_SYSTEM	     A system error has occurred. Check the system error code for more details.

       The pool_get_resource_binding() function will fail if:

       POE_INVALID_CONF      The configuration is invalid.

       POE_INVALID_SEARCH    The target is not bound to a resource of the specified type.

       POE_SYSTEM	     A system error has occurred. Check the system error code for more details.

EXAMPLES

       Example 1 Bind the current process to the pool named "target".

	 #include <sys/types.h>
	 #include <pool.h>
	 #include <unistd.h>

	 ...

	 id_t pid = getpid();

	 ...

	 if (pool_set_binding("target", P_PID, pid) == PO_FAIL)
		 (void) fprintf(stderr, "pool binding failed (d)0
			  pool_error());

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Unstable			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       libpool(3LIB), pool_error(3POOL), attributes(5)

SunOS 5.11							    27 Mar 2007 					   pool_get_binding(3POOL)