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/*
* 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 (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#include <stdio.h>
#include <stdlib.h>
#include <thread.h>
#include <synch.h>
#include <syslog.h>
#include <arpa/inet.h>
#include <slp-internal.h>
#include <slp_net_utils.h>
SLPError SLPOpen(const char *pcLang, SLPBoolean isAsync, SLPHandle *phSLP) {
slp_handle_impl_t *hp;
if (!pcLang || !phSLP) {
return (SLP_PARAMETER_BAD);
}
/* allocate the handle */
if (!(hp = malloc(sizeof (*hp)))) {
slp_err(LOG_CRIT, 0, "SLPOpen", "out of memory");
return (SLP_MEMORY_ALLOC_FAILED);
}
/* initialize outcall synchronization */
hp->pending_outcall = SLP_FALSE;
(void) mutex_init(&(hp->outcall_lock), USYNC_THREAD, NULL);
(void) cond_init(&(hp->outcall_cv), USYNC_THREAD, NULL);
hp->close_on_end = SLP_FALSE;
hp->consumer_tid = 0;
/* locale property overrides argument */
if (!(hp->locale = SLPGetProperty(SLP_CONFIG_LOCALE))) {
hp->locale = pcLang;
}
/* Make sure the language string is under our ownership */
if (!(hp->locale = strdup(hp->locale))) {
free(hp);
slp_err(LOG_CRIT, 0, "SLPOpen", "out of memory");
return (SLP_MEMORY_ALLOC_FAILED);
}
hp->cancel = 0;
/* Asynchronous operation? */
if (isAsync)
hp->async = SLP_TRUE;
else
hp->async = SLP_FALSE;
/* TCP vars -- these are NULL until actually needed */
hp->tcp_lock = NULL;
hp->tcp_wait = NULL;
hp->tcp_ref_cnt = 0;
/* Consumer / Producer pipe */
hp->q = NULL;
/* Interface info, loaded on demand */
hp->ifinfo = NULL;
/* force multicast, false by default */
hp->force_multicast = SLP_FALSE;
/* internal call, false by default */
hp->internal_call = SLP_FALSE;
*phSLP = hp;
return (SLP_OK);
}
void slp_cleanup_handle(slp_handle_impl_t *hp) {
/* free the handle */
if (hp->tcp_lock) free(hp->tcp_lock);
if (hp->tcp_wait) free(hp->tcp_wait);
if (hp->ifinfo) {
slp_free_ifinfo(hp->ifinfo);
free(hp->ifinfo);
}
free((void *) hp->locale);
free(hp);
}
void SLPClose(SLPHandle hSLP) {
slp_handle_impl_t *hp = (slp_handle_impl_t *)hSLP;
if (!hSLP) {
return;
}
/*
* If an outcall is pending on this handle:
* If we are being called from a callback resulting
* from the outcall associated with this handle or
* if close_on_end has already been set:
* just set close on end and return -- the cleanup
* will be done when the outcall is finished.
* else
* wait on the outcall cv for the outcall to complete
* Proceed with cleanup
*/
(void) mutex_lock(&(hp->outcall_lock));
if (hp->pending_outcall) {
/* end the consumer thread */
/* this will also kill the producer thread and close net */
hp->cancel = 1;
if (hp->q) {
if (slp_enqueue_at_head(hp->q, NULL) != SLP_OK) {
goto cleanup;
}
}
if (thr_self() == hp->consumer_tid || hp->close_on_end) {
/* SLPClose called from callback */
hp->close_on_end = SLP_TRUE;
(void) mutex_unlock(&(hp->outcall_lock));
return;
}
/* else not called from callback; wait for outcall to end */
while (hp->pending_outcall) {
(void) cond_wait(&(hp->outcall_cv), &(hp->outcall_lock));
}
}
(void) mutex_unlock(&(hp->outcall_lock));
cleanup:
slp_cleanup_handle(hp);
}
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