/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 * Common Development and Distribution License, Version 1.0 only

 * (the "License").  You may not use this file except in compliance

 * with the License.

 *

 * 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.

 *

 * 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]

 *

 * CDDL HEADER END

 */

/*

 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include "lint.h"

#include <sys/rctl_impl.h>

#include <stdlib.h>

#include <string.h>

#include <rctl.h>

/*

 * Resource control routines

 *

 * rctl_walk(3C)

 *

 * Resource control block manipulation routines

 *   The setrctl(2) and getrctl(2) interfaces are accessed via opaque resource

 *   control blocks, the characteristics of which are in turn set and fetched

 *   using the following functions.  Applications using the following interfaces

 *   will be binary compatible across enhancements to the resource control

 *   subsystem that involve modification of the control block.

 */

int

rctl_walk(int (*callback)(const char *rctlname, void *walk_data),

    void *init_data)

{

	int ret = 0;

	char *ctl_names, *curr_name;

	size_t sz = rctllist(NULL, 0);

	if ((ctl_names = malloc(sz)) == NULL)

		return (-1);

	(void) rctllist(ctl_names, sz);

	for (curr_name = ctl_names;

	    curr_name < ctl_names + sz;

	    curr_name += strlen(curr_name) + 1) {

		if (ret = callback(curr_name, init_data)) {

			free(ctl_names);

			return (ret);

		}

	}

	free(ctl_names);

	return (ret);

}

uint_t

rctlblk_get_global_action(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_global_flagaction & (~RCTL_GLOBAL_ACTION_MASK));

}

uint_t

rctlblk_get_local_action(rctlblk_t *rblk, int *signal)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	if (signal != NULL)

		*signal = ropaque->rcq_local_signal;

	return (ropaque->rcq_local_flagaction & (~RCTL_LOCAL_ACTION_MASK));

}

uint_t

rctlblk_get_global_flags(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_global_flagaction & RCTL_GLOBAL_ACTION_MASK);

}

uint_t

rctlblk_get_local_flags(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_local_flagaction & RCTL_LOCAL_ACTION_MASK);

}

hrtime_t

rctlblk_get_firing_time(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_firing_time);

}

id_t

rctlblk_get_recipient_pid(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_local_recipient_pid);

}

rctl_priv_t

rctlblk_get_privilege(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_privilege);

}

rctl_qty_t

rctlblk_get_value(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_value);

}

rctl_qty_t

rctlblk_get_enforced_value(rctlblk_t *rblk)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	return (ropaque->rcq_enforced_value);

}

void

rctlblk_set_local_action(rctlblk_t *rblk, uint_t action, int signal)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	ropaque->rcq_local_signal = signal;

	ropaque->rcq_local_flagaction = (ropaque->rcq_local_flagaction &

	    RCTL_LOCAL_ACTION_MASK) | (action & ~RCTL_LOCAL_ACTION_MASK);

}

void

rctlblk_set_local_flags(rctlblk_t *rblk, uint_t flags)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	ropaque->rcq_local_flagaction = (ropaque->rcq_local_flagaction &

	    ~RCTL_LOCAL_ACTION_MASK) | (flags & RCTL_LOCAL_ACTION_MASK);

}

void

rctlblk_set_recipient_pid(rctlblk_t *rblk, id_t pid)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	ropaque->rcq_local_recipient_pid = pid;

}

void

rctlblk_set_privilege(rctlblk_t *rblk, rctl_priv_t privilege)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	ropaque->rcq_privilege = privilege;

}

void

rctlblk_set_value(rctlblk_t *rblk, rctl_qty_t value)

{

	rctl_opaque_t *ropaque = (rctl_opaque_t *)rblk;

	ropaque->rcq_value = value;

}

size_t

rctlblk_size(void)

{

	return (sizeof (rctl_opaque_t));

}