diff options
Diffstat (limited to 'sys/dev/raidframe/rf_threadstuff.c')
| -rw-r--r-- | sys/dev/raidframe/rf_threadstuff.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/sys/dev/raidframe/rf_threadstuff.c b/sys/dev/raidframe/rf_threadstuff.c new file mode 100644 index 0000000..d1ecf16 --- /dev/null +++ b/sys/dev/raidframe/rf_threadstuff.c @@ -0,0 +1,221 @@ +/* $FreeBSD$ */ +/* $NetBSD: rf_threadstuff.c,v 1.5 1999/12/07 02:13:28 oster Exp $ */ +/* + * rf_threadstuff.c + */ +/* + * Copyright (c) 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Jim Zelenka + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#include <dev/raidframe/rf_types.h> +#include <dev/raidframe/rf_threadstuff.h> +#include <dev/raidframe/rf_general.h> +#include <dev/raidframe/rf_shutdown.h> + +static void mutex_destroyer(void *); +static void cond_destroyer(void *); + +/* + * Shared stuff + */ + +static void +mutex_destroyer(arg) + void *arg; +{ + int rc; + + rc = rf_mutex_destroy(arg); + if (rc) { + RF_ERRORMSG1("RAIDFRAME: Error %d auto-destroying mutex\n", rc); + } +} + +static void +cond_destroyer(arg) + void *arg; +{ + int rc; + + rc = rf_cond_destroy(arg); + if (rc) { + RF_ERRORMSG1("RAIDFRAME: Error %d auto-destroying condition\n", rc); + } +} + +int +_rf_create_managed_mutex(listp, m, file, line) + RF_ShutdownList_t **listp; +RF_DECLARE_MUTEX(*m) + char *file; + int line; +{ + int rc, rc1; + + rc = rf_mutex_init(m, __FUNCTION__); + if (rc) + return (rc); + rc = _rf_ShutdownCreate(listp, mutex_destroyer, (void *) m, file, line); + if (rc) { + RF_ERRORMSG1("RAIDFRAME: Error %d adding shutdown entry\n", rc); + rc1 = rf_mutex_destroy(m); + if (rc1) { + RF_ERRORMSG1("RAIDFRAME: Error %d destroying mutex\n", rc1); + } + } + return (rc); +} + +int +_rf_create_managed_cond(listp, c, file, line) + RF_ShutdownList_t **listp; +RF_DECLARE_COND(*c) + char *file; + int line; +{ + int rc, rc1; + + rc = rf_cond_init(c); + if (rc) + return (rc); + rc = _rf_ShutdownCreate(listp, cond_destroyer, (void *) c, file, line); + if (rc) { + RF_ERRORMSG1("RAIDFRAME: Error %d adding shutdown entry\n", rc); + rc1 = rf_cond_destroy(c); + if (rc1) { + RF_ERRORMSG1("RAIDFRAME: Error %d destroying cond\n", rc1); + } + } + return (rc); +} + +int +_rf_init_managed_threadgroup(listp, g, file, line) + RF_ShutdownList_t **listp; + RF_ThreadGroup_t *g; + char *file; + int line; +{ + int rc; + + rc = _rf_create_managed_mutex(listp, &g->mutex, file, line); + if (rc) + return (rc); + rc = _rf_create_managed_cond(listp, &g->cond, file, line); + if (rc) + return (rc); + g->created = g->running = g->shutdown = 0; + return (0); +} + +int +_rf_destroy_threadgroup(g, file, line) + RF_ThreadGroup_t *g; + char *file; + int line; +{ + int rc1, rc2; + + rc1 = rf_mutex_destroy(&g->mutex); + rc2 = rf_cond_destroy(&g->cond); + if (rc1) + return (rc1); + return (rc2); +} + +int +_rf_init_threadgroup(g, file, line) + RF_ThreadGroup_t *g; + char *file; + int line; +{ + int rc; + + rc = rf_mutex_init(&g->mutex, __FUNCTION__); + if (rc) + return (rc); + rc = rf_cond_init(&g->cond); + if (rc) { + rf_mutex_destroy(&g->mutex); + return (rc); + } + g->created = g->running = g->shutdown = 0; + return (0); +} + + +/* + * Kernel + */ +#if defined(__FreeBSD__) && __FreeBSD_version > 500005 +int +rf_mutex_init(m, s) +decl_simple_lock_data(, *m) +const char *s; +{ + mtx_init(m, s, NULL, MTX_DEF); + return (0); +} + +int +rf_mutex_destroy(m) +decl_simple_lock_data(, *m) +{ + mtx_destroy(m); + return (0); +} +#else +int +rf_mutex_init(m, s) +decl_simple_lock_data(, *m) +const char *s; +{ + simple_lock_init(m); + return (0); +} + +int +rf_mutex_destroy(m) +decl_simple_lock_data(, *m) +{ + return (0); +} +#endif + +int +rf_cond_init(c) +RF_DECLARE_COND(*c) +{ + *c = 0; /* no reason */ + return (0); +} + +int +rf_cond_destroy(c) +RF_DECLARE_COND(*c) +{ + return (0); +} |
