diff options
Diffstat (limited to 'sys/geom/uzip/g_uzip_wrkthr.c')
| -rw-r--r-- | sys/geom/uzip/g_uzip_wrkthr.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sys/geom/uzip/g_uzip_wrkthr.c b/sys/geom/uzip/g_uzip_wrkthr.c new file mode 100644 index 0000000..2afe075 --- /dev/null +++ b/sys/geom/uzip/g_uzip_wrkthr.c @@ -0,0 +1,72 @@ +/*- + * Copyright (c) 2006-2016 Maxim Sobolev <sobomax@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/lock.h> +#include <sys/mutex.h> +#include <sys/bio.h> +#include <sys/systm.h> +#include <sys/proc.h> +#include <sys/sched.h> +#include <sys/kthread.h> +#include <sys/malloc.h> + +#include <geom/uzip/g_uzip.h> +#include <geom/uzip/g_uzip_softc.h> +#include <geom/uzip/g_uzip_wrkthr.h> + +void +g_uzip_wrkthr(void *arg) +{ + struct g_uzip_softc *sc; + struct bio *bp; + + sc = (struct g_uzip_softc *)arg; + thread_lock(curthread); + sched_prio(curthread, PRIBIO); + thread_unlock(curthread); + + for (;;) { + mtx_lock(&sc->queue_mtx); + if (sc->wrkthr_flags & GUZ_SHUTDOWN) { + sc->wrkthr_flags |= GUZ_EXITING; + mtx_unlock(&sc->queue_mtx); + kproc_exit(0); + } + bp = bioq_takefirst(&sc->bio_queue); + if (!bp) { + msleep(sc, &sc->queue_mtx, PRIBIO | PDROP, + "wrkwait", 0); + continue; + } + mtx_unlock(&sc->queue_mtx); + sc->uzip_do(sc, bp); + } +} |
