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authorSebastian Huber <sebastian.huber@embedded-brains.de>2013-10-09 22:42:09 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2013-10-10 09:06:58 +0200
commitbceabc95c1c85d793200446fa85f1ddc6313ea29 (patch)
tree973c8bd8deca9fd69913f2895cc91e0e6114d46c /freebsd/sys/sys/sf_buf.h
parentAdd FreeBSD sources as a submodule (diff)
downloadrtems-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.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/freebsd/sys/sys/sf_buf.h b/freebsd/sys/sys/sf_buf.h
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+++ b/freebsd/sys/sys/sf_buf.h
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+/*-
+ * 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_ */