222 lines
4.2 KiB
C
222 lines
4.2 KiB
C
/* $FreeBSD$ */
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/* $NetBSD: rf_threadstuff.c,v 1.5 1999/12/07 02:13:28 oster Exp $ */
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/*
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* rf_threadstuff.c
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*/
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/*
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* Copyright (c) 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Jim Zelenka
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <dev/raidframe/rf_types.h>
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#include <dev/raidframe/rf_threadstuff.h>
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#include <dev/raidframe/rf_general.h>
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#include <dev/raidframe/rf_shutdown.h>
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static void mutex_destroyer(void *);
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static void cond_destroyer(void *);
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/*
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* Shared stuff
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*/
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static void
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mutex_destroyer(arg)
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void *arg;
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{
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int rc;
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rc = rf_mutex_destroy(arg);
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if (rc) {
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RF_ERRORMSG1("RAIDFRAME: Error %d auto-destroying mutex\n", rc);
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}
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}
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static void
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cond_destroyer(arg)
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void *arg;
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{
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int rc;
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rc = rf_cond_destroy(arg);
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if (rc) {
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RF_ERRORMSG1("RAIDFRAME: Error %d auto-destroying condition\n", rc);
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}
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}
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int
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_rf_create_managed_mutex(listp, m, file, line)
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RF_ShutdownList_t **listp;
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RF_DECLARE_MUTEX(*m)
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char *file;
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int line;
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{
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int rc, rc1;
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rc = rf_mutex_init(m, __FUNCTION__);
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if (rc)
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return (rc);
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rc = _rf_ShutdownCreate(listp, mutex_destroyer, (void *) m, file, line);
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if (rc) {
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RF_ERRORMSG1("RAIDFRAME: Error %d adding shutdown entry\n", rc);
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rc1 = rf_mutex_destroy(m);
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if (rc1) {
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RF_ERRORMSG1("RAIDFRAME: Error %d destroying mutex\n", rc1);
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}
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}
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return (rc);
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}
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int
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_rf_create_managed_cond(listp, c, file, line)
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RF_ShutdownList_t **listp;
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RF_DECLARE_COND(*c)
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char *file;
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int line;
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{
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int rc, rc1;
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rc = rf_cond_init(c);
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if (rc)
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return (rc);
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rc = _rf_ShutdownCreate(listp, cond_destroyer, (void *) c, file, line);
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if (rc) {
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RF_ERRORMSG1("RAIDFRAME: Error %d adding shutdown entry\n", rc);
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rc1 = rf_cond_destroy(c);
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if (rc1) {
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RF_ERRORMSG1("RAIDFRAME: Error %d destroying cond\n", rc1);
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}
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}
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return (rc);
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}
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int
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_rf_init_managed_threadgroup(listp, g, file, line)
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RF_ShutdownList_t **listp;
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RF_ThreadGroup_t *g;
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char *file;
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int line;
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{
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int rc;
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rc = _rf_create_managed_mutex(listp, &g->mutex, file, line);
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if (rc)
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return (rc);
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rc = _rf_create_managed_cond(listp, &g->cond, file, line);
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if (rc)
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return (rc);
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g->created = g->running = g->shutdown = 0;
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return (0);
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}
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int
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_rf_destroy_threadgroup(g, file, line)
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RF_ThreadGroup_t *g;
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char *file;
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int line;
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{
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int rc1, rc2;
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rc1 = rf_mutex_destroy(&g->mutex);
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rc2 = rf_cond_destroy(&g->cond);
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if (rc1)
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return (rc1);
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return (rc2);
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}
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int
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_rf_init_threadgroup(g, file, line)
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RF_ThreadGroup_t *g;
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char *file;
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int line;
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{
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int rc;
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rc = rf_mutex_init(&g->mutex, __FUNCTION__);
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if (rc)
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return (rc);
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rc = rf_cond_init(&g->cond);
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if (rc) {
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rf_mutex_destroy(&g->mutex);
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return (rc);
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}
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g->created = g->running = g->shutdown = 0;
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return (0);
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}
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/*
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* Kernel
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*/
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#if defined(__FreeBSD__) && __FreeBSD_version > 500005
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int
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rf_mutex_init(m, s)
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decl_simple_lock_data(, *m)
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const char *s;
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{
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mtx_init(m, s, NULL, MTX_DEF);
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return (0);
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}
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int
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rf_mutex_destroy(m)
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decl_simple_lock_data(, *m)
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{
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mtx_destroy(m);
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return (0);
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}
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#else
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int
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rf_mutex_init(m, s)
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decl_simple_lock_data(, *m)
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const char *s;
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{
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simple_lock_init(m);
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return (0);
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}
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int
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rf_mutex_destroy(m)
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decl_simple_lock_data(, *m)
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{
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return (0);
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}
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#endif
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int
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rf_cond_init(c)
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RF_DECLARE_COND(*c)
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{
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*c = 0; /* no reason */
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return (0);
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}
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int
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rf_cond_destroy(c)
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RF_DECLARE_COND(*c)
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{
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return (0);
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}
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