46364cb2f3
OpenZFS provides a library called tpool which implements thread pools for user space applications. Porting this library means the zpool utility no longer needs to borrow the kernel mutex and taskq interfaces from libzpool. This code was updated to use the tpool library which behaves in a very similar fashion. Porting libtpool was relatively straight forward and minimal modifications were needed. The core changes were: * Fully convert the library to use pthreads. * Updated signal handling. * lmalloc/lfree converted to calloc/free * Implemented portable pthread_attr_clone() function. Finally, update the build system such that libzpool.so is no longer linked in to zfs(8), zpool(8), etc. All that is required is libzfs to which the zcommon soures were added (which is the way it always should have been). Removing the libzpool dependency resulted in several build issues which needed to be resolved. * Moved zfeature support to module/zcommon/zfeature_common.c * Moved ratelimiting to to module/zfs/zfs_ratelimit.c * Moved get_system_hostid() to lib/libspl/gethostid.c * Removed use of cmn_err() in zcommon source * Removed dprintf_setup() call from zpool_main.c and zfs_main.c * Removed highbit() and lowbit() * Removed unnecessary library dependencies from Makefiles * Removed fletcher-4 kstat in user space * Added sha2 support explicitly to libzfs * Added highbit64() and lowbit64() to zpool_util.c Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #6442
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _THREAD_POOL_H_
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#define _THREAD_POOL_H_
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#include <sys/types.h>
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#include <thread.h>
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#include <pthread.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct tpool tpool_t; /* opaque thread pool descriptor */
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#if defined(__STDC__)
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extern tpool_t *tpool_create(uint_t min_threads, uint_t max_threads,
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uint_t linger, pthread_attr_t *attr);
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extern int tpool_dispatch(tpool_t *tpool,
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void (*func)(void *), void *arg);
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extern void tpool_destroy(tpool_t *tpool);
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extern void tpool_abandon(tpool_t *tpool);
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extern void tpool_wait(tpool_t *tpool);
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extern void tpool_suspend(tpool_t *tpool);
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extern int tpool_suspended(tpool_t *tpool);
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extern void tpool_resume(tpool_t *tpool);
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extern int tpool_member(tpool_t *tpool);
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#else /* Non ANSI */
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extern tpool_t *tpool_create();
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extern int tpool_dispatch();
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extern void tpool_destroy();
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extern void tpool_abandon();
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extern void tpool_wait();
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extern void tpool_suspend();
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extern int tpool_suspended();
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extern void tpool_resume();
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extern int tpool_member();
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#endif /* __STDC__ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _THREAD_POOL_H_ */
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