#include <sys/time.h>
#include <kern/task.h>
#include <kern/thread.h>
#include <mach/mach_types.h>
#include <mach/vm_prot.h>
#include <vm/vm_kern.h>
#include <vm/vm_map.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/buf.h>
int dmmin, dmmax, dmtext;
kmem_mb_alloc(vm_map_t mbmap, int size)
{
vm_offset_t addr;
if (kernel_memory_allocate(mbmap, &addr, size,
0,
KMA_NOPAGEWAIT|KMA_KOBJECT) == KERN_SUCCESS)
return((void *)addr);
else
return(0);
}
pcb_synch() {}
unix_master() {}
unix_release() {}
struct proc *
current_proc(void)
{
struct proc *p = (struct proc *)get_bsdtask_info(current_task());
if (p == NULL)
p = kernproc;
return (p);
}
extern int nblkdev, nchrdev;
struct bdevsw nobdev = NO_BDEVICE;
struct cdevsw nocdev = NO_CDEVICE;
int
bdevsw_isfree(int index)
{
struct bdevsw *devsw;
if (index == -1) {
devsw = bdevsw;
for(index=0; index < nblkdev; index++, devsw++) {
if(memcmp((char *)devsw,
(char *)&nobdev,
sizeof(struct bdevsw)) == 0)
break;
}
}
if ((index < 0) || (index >= nblkdev) ||
(memcmp((char *)devsw,
(char *)&nobdev,
sizeof(struct bdevsw)) != 0)) {
return(-1);
}
return(index);
}
int
bdevsw_add(int index, struct bdevsw * bsw)
{
struct bdevsw *devsw;
if (index == -1) {
devsw = bdevsw;
for(index=0; index < nblkdev; index++, devsw++) {
if(memcmp((char *)devsw,
(char *)&nobdev,
sizeof(struct bdevsw)) == 0)
break;
}
}
devsw = &bdevsw[index];
if ((index < 0) || (index >= nblkdev) ||
(memcmp((char *)devsw,
(char *)&nobdev,
sizeof(struct bdevsw)) != 0)) {
return(-1);
}
bdevsw[index] = *bsw;
return(index);
}
int
bdevsw_remove(int index, struct bdevsw * bsw)
{
struct bdevsw *devsw;
devsw = &bdevsw[index];
if ((index < 0) || (index >= nblkdev) ||
(memcmp((char *)devsw,
(char *)bsw,
sizeof(struct bdevsw)) != 0)) {
return(-1);
}
bdevsw[index] = nobdev;
return(index);
}
int
cdevsw_isfree(int index)
{
struct cdevsw *devsw;
if (index == -1) {
devsw = cdevsw;
for(index=0; index < nchrdev; index++, devsw++) {
if(memcmp((char *)devsw,
(char *)&nocdev,
sizeof(struct cdevsw)) == 0)
break;
}
}
devsw = &cdevsw[index];
if ((index < 0) || (index >= nchrdev) ||
(memcmp((char *)devsw,
(char *)&nocdev,
sizeof(struct cdevsw)) != 0)) {
return(-1);
}
return(index);
}
int
cdevsw_add(int index, struct cdevsw * csw)
{
struct cdevsw *devsw;
if (index == -1) {
devsw = cdevsw;
for(index=0; index < nchrdev; index++, devsw++) {
if(memcmp((char *)devsw,
(char *)&nocdev,
sizeof(struct cdevsw)) == 0)
break;
}
}
devsw = &cdevsw[index];
if ((index < 0) || (index >= nchrdev) ||
(memcmp((char *)devsw,
(char *)&nocdev,
sizeof(struct cdevsw)) != 0)) {
return(-1);
}
cdevsw[index] = *csw;
return(index);
}
int
cdevsw_remove(int index, struct cdevsw * csw)
{
struct cdevsw *devsw;
devsw = &cdevsw[index];
if ((index < 0) || (index >= nchrdev) ||
(memcmp((char *)devsw,
(char *)csw,
sizeof(struct cdevsw)) != 0)) {
return(-1);
}
cdevsw[index] = nocdev;
return(index);
}
int
memcmp(s1, s2, n)
register char *s1, *s2;
register n;
{
while (--n >= 0)
if (*s1++ != *s2++)
return (*--s1 - *--s2);
return (0);
}
int
issingleuser(void)
{
char namep[16];
if (PE_parse_boot_arg("-s", namep)) {
return(1);
} else {
return(0);
}
}
void *
tbeproc(void *procp)
{
struct proc *p = procp;
if (p)
SET(p->p_flag, P_TBE);
return;
}