diff options
Diffstat (limited to 'cddl/compat/opensolaris/misc/thread_pool_impl.h')
| -rw-r--r-- | cddl/compat/opensolaris/misc/thread_pool_impl.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/cddl/compat/opensolaris/misc/thread_pool_impl.h b/cddl/compat/opensolaris/misc/thread_pool_impl.h new file mode 100644 index 0000000000000..bc98ac8b1b370 --- /dev/null +++ b/cddl/compat/opensolaris/misc/thread_pool_impl.h @@ -0,0 +1,99 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +/* + * $FreeBSD$ + */ + +#ifndef _THREAD_POOL_IMPL_H +#define _THREAD_POOL_IMPL_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <thread_pool.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Thread pool implementation definitions. + * See <thread_pool.h> for interface declarations. + */ + +/* + * FIFO queued job + */ +typedef struct tpool_job tpool_job_t; +struct tpool_job { + tpool_job_t *tpj_next; /* list of jobs */ + void (*tpj_func)(void *); /* function to call */ + void *tpj_arg; /* its argument */ +}; + +/* + * List of active threads, linked through their stacks. + */ +typedef struct tpool_active tpool_active_t; +struct tpool_active { + tpool_active_t *tpa_next; /* list of active threads */ + pthread_t tpa_tid; /* active thread id */ +}; + +/* + * The thread pool. + */ +struct tpool { + tpool_t *tp_forw; /* circular list of all thread pools */ + tpool_t *tp_back; + mutex_t tp_mutex; /* protects the pool data */ + cond_t tp_busycv; /* synchronization in tpool_dispatch */ + cond_t tp_workcv; /* synchronization with workers */ + cond_t tp_waitcv; /* synchronization in tpool_wait() */ + tpool_active_t *tp_active; /* threads performing work */ + tpool_job_t *tp_head; /* FIFO job queue */ + tpool_job_t *tp_tail; + pthread_attr_t tp_attr; /* attributes of the workers */ + int tp_flags; /* see below */ + uint_t tp_linger; /* seconds before idle workers exit */ + int tp_njobs; /* number of jobs in job queue */ + int tp_minimum; /* minimum number of worker threads */ + int tp_maximum; /* maximum number of worker threads */ + int tp_current; /* current number of worker threads */ + int tp_idle; /* number of idle workers */ +}; + +/* tp_flags */ +#define TP_WAIT 0x01 /* waiting in tpool_wait() */ +#define TP_SUSPEND 0x02 /* pool is being suspended */ +#define TP_DESTROY 0x04 /* pool is being destroyed */ +#define TP_ABANDON 0x08 /* pool is abandoned (auto-destroy) */ + +#ifdef __cplusplus +} +#endif + +#endif /* _THREAD_POOL_IMPL_H */ |