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Add new-style sysctl for KERN_FILE here.

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This commit is contained in:
Poul-Henning Kamp 1995-11-14 08:58:35 +00:00
parent b3e24f9ce9
commit 18e6fe0250
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=12277
1 changed files with 43 additions and 1 deletions
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44
sys/kern/kern_descrip.c
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@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)kern_descrip.c 8.6 (Berkeley) 4/19/94
* $Id: kern_descrip.c,v 1.12 1995/10/21 08:38:09 davidg Exp $
* $Id: kern_descrip.c,v 1.13 1995/11/12 06:42:52 bde Exp $
*/
#include <sys/param.h>
@ -44,6 +44,7 @@
#include <sys/sysproto.h>
#include <sys/filedesc.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <sys/vnode.h>
#include <sys/proc.h>
#include <sys/file.h>
@ -980,3 +981,44 @@ dupfdopen(fdp, indx, dfd, mode, error)
}
/* NOTREACHED */
}
/*
* Get file structures.
*/
static int
sysctl_kern_file SYSCTL_HANDLER_ARGS
{
int error;
struct file *fp;
if (!req->oldptr) {
/*
* overestimate by 10 files
*/
return (SYSCTL_OUT(req, 0, sizeof(filehead) +
(nfiles + 10) * sizeof(struct file)));
}
error = SYSCTL_OUT(req, (caddr_t)&filehead, sizeof(filehead));
if (error)
return (error);
/*
* followed by an array of file structures
*/
for (fp = filehead; fp != NULL; fp = fp->f_filef) {
error = SYSCTL_OUT(req, (caddr_t)fp, sizeof (struct file));
if (error)
return (error);
}
return (0);
}
SYSCTL_PROC(_kern, KERN_FILE, file, CTLTYPE_OPAQUE|CTLFLAG_RD,
0, 0, sysctl_kern_file, "");
SYSCTL_INT(_kern, KERN_MAXFILESPERPROC, maxfilesperproc,
CTLFLAG_RD, &maxfilesperproc, 0, "");
SYSCTL_INT(_kern, KERN_MAXFILES, maxfiles, CTLFLAG_RW, &maxfiles, 0, "");