hardenedbsd/HardenedBSD
1
0
Fork 0
mirror of https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git synced 2025-01-01 00:18:15 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fixed some style bugs in the poll() code.

Browse Source 
Removed dead code to "Avoid inadvertently sleeping forever".  hzto()
never returns 0.
This commit is contained in:
Bruce Evans 1997-11-23 10:30:50 +00:00
parent a964cd4bba
commit 2087c8967c
1 changed files with 8 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
sys/kern/sys_generic.c
View File

@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)sys_generic.c 8.5 (Berkeley) 1/21/94
* $Id: sys_generic.c,v 1.31 1997/10/12 20:24:02 phk Exp $
* $Id: sys_generic.c,v 1.32 1997/11/06 19:29:20 phk Exp $
*/
#include "opt_ktrace.h"
@ -65,8 +65,8 @@ static MALLOC_DEFINE(M_IOCTLOPS, "ioctlops", "ioctl data buffer");
static MALLOC_DEFINE(M_SELECT, "select", "select() buffer");
MALLOC_DEFINE(M_IOV, "iov", "large iov's");
static int selscan __P((struct proc *, fd_mask **, fd_mask **, int));
static int pollscan __P((struct proc *, struct pollfd *, int));
static int selscan __P((struct proc *, fd_mask **, fd_mask **, int));
/*
* Read system call.
@ -603,11 +603,6 @@ select(p, uap)
s = splclock();
timevaladd(&atv, &time);
timo = hzto(&atv);
/*
* Avoid inadvertently sleeping forever.
*/
if (timo == 0)
timo = 1;
splx(s);
} else
timo = 0;
@ -667,8 +662,8 @@ selscan(p, ibits, obits, nfd)
register fd_mask bits;
struct file *fp;
int n = 0;
/* Note; backend also returns POLLHUP/POLLERR if appropriate */
static int flag[3] = { POLLRDNORM, POLLWRNORM, POLLRDBAND};
/* Note: backend also returns POLLHUP/POLLERR if appropriate. */
static int flag[3] = { POLLRDNORM, POLLWRNORM, POLLRDBAND };
for (msk = 0; msk < 3; msk++) {
if (ibits[msk] == NULL)
@ -723,11 +718,9 @@ poll(p, uap)
bits = malloc(ni, M_TEMP, M_WAITOK);
else
bits = smallbits;
error = copyin(SCARG(uap, fds), bits, ni);
if (error)
goto done;
if (SCARG(uap, timeout) != INFTIM) {
atv.tv_sec = SCARG(uap, timeout) / 1000;
atv.tv_usec = (SCARG(uap, timeout) % 1000) * 1000;
@ -738,11 +731,6 @@ poll(p, uap)
s = splclock();
timevaladd(&atv, &time);
timo = hzto(&atv);
/*
* Avoid inadvertently sleeping forever.
*/
if (timo == 0)
timo = 1;
splx(s);
} else
timo = 0;
@ -805,8 +793,10 @@ pollscan(p, fds, nfd)
fds->revents = POLLNVAL;
n++;
} else {
/* Note: backend also returns POLLHUP and
* POLLERR if appropriate */
/*
* Note: backend also returns POLLHUP and
* POLLERR if appropriate.
*/
fds->revents = (*fp->f_ops->fo_poll)(fp,
fds->events, fp->f_cred, p);
if (fds->revents != 0)