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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-10-09 22:42:09 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-10-10 09:06:58 +0200 |
commit | bceabc95c1c85d793200446fa85f1ddc6313ea29 (patch) | |
tree | 973c8bd8deca9fd69913f2895cc91e0e6114d46c /freebsd/sys/sys/sf_buf.h | |
parent | Add FreeBSD sources as a submodule (diff) | |
download | rtems-libbsd-bceabc95c1c85d793200446fa85f1ddc6313ea29.tar.bz2 |
Move files to match FreeBSD layout
Diffstat (limited to 'freebsd/sys/sys/sf_buf.h')
-rw-r--r-- | freebsd/sys/sys/sf_buf.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/freebsd/sys/sys/sf_buf.h b/freebsd/sys/sys/sf_buf.h new file mode 100644 index 00000000..5dbcd5ef --- /dev/null +++ b/freebsd/sys/sys/sf_buf.h @@ -0,0 +1,56 @@ +/*- + * Copyright (c) 2003-2004 Alan L. Cox <alc@cs.rice.edu> + * 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. + * + * $FreeBSD$ + */ + +#ifndef _SYS_SF_BUF_HH_ +#define _SYS_SF_BUF_HH_ + +#include <freebsd/machine/sf_buf.h> + +/* + * Options to sf_buf_alloc() are specified through its flags argument. This + * argument's value should be the result of a bitwise or'ing of one or more + * of the following values. + */ +#define SFB_CATCH 1 /* Check signals if the allocation + sleeps. */ +#define SFB_CPUPRIVATE 2 /* Create a CPU private mapping. */ +#define SFB_DEFAULT 0 +#define SFB_NOWAIT 4 /* Return NULL if all bufs are used. */ + +struct vm_page; + +extern int nsfbufs; /* Number of sendfile(2) bufs alloced */ +extern int nsfbufspeak; /* Peak of nsfbufsused */ +extern int nsfbufsused; /* Number of sendfile(2) bufs in use */ + +struct sf_buf * + sf_buf_alloc(struct vm_page *m, int flags); +void sf_buf_free(struct sf_buf *sf); +void sf_buf_mext(void *addr, void *args); + +#endif /* !_SYS_SF_BUF_HH_ */ |