long
_syspipe(int fd[2])
{
Chan *c[2];
Dev *d;
static char *datastr[] = {"data", "data1"};
d = devtab[devno('|', 0)];
c[0] = namec("#|", Atodir, 0, 0);
c[1] = 0;
fd[0] = -1;
fd[1] = -1;
if(waserror()){
cclose(c[0]);
if(c[1])
cclose(c[1]);
nexterror();
}
c[1] = cclone(c[0]);
if(walk(&c[0], datastr+0, 1, 1, nil) < 0)
error(Egreg);
if(walk(&c[1], datastr+1, 1, 1, nil) < 0)
error(Egreg);
c[0] = d->open(c[0], ORDWR);
c[1] = d->open(c[1], ORDWR);
if(newfd2(fd, c) < 0)
error(Enofd);
poperror();
return 0;
}
void
syspipe(Ar0* ar0, ...)
{
Proc *up = externup();
int *a, fd[2];
Chan *c[2];
static char *datastr[] = {"data", "data1"};
va_list list;
va_start(list, ar0);
/*
* int pipe(int fd[2]);
*/
a = va_arg(list, int*);
va_end(list);
a = validaddr(a, sizeof(fd), 1);
evenaddr(PTR2UINT(a));
c[0] = namec("#|", Atodir, 0, 0);
c[1] = nil;
fd[0] = -1;
fd[1] = -1;
if(waserror()){
cclose(c[0]);
if(c[1])
cclose(c[1]);
nexterror();
}
c[1] = cclone(c[0]);
if(walk(&c[0], datastr+0, 1, 1, nil) < 0)
error(Egreg);
if(walk(&c[1], datastr+1, 1, 1, nil) < 0)
error(Egreg);
c[0] = c[0]->dev->open(c[0], ORDWR);
c[1] = c[1]->dev->open(c[1], ORDWR);
if(newfd2(fd, c) < 0)
error(Enofd);
poperror();
a[0] = fd[0];
a[1] = fd[1];
ar0->i = 0;
}
long
syspipe(uint32 *arg)
{
int fd[2];
Chan *c[2];
Dev *d;
static char *datastr[] = {"data", "data1"};
int *ufd;
ufd = uvalidaddr(arg[0], 2*BY2WD, 1);
evenaddr(arg[0]);
d = devtab[devno('|', 0)];
c[0] = namec("#|", Atodir, 0, 0);
c[1] = 0;
fd[0] = -1;
fd[1] = -1;
if(waserror()){
cclose(c[0]);
if(c[1])
cclose(c[1]);
nexterror();
}
c[1] = cclone(c[0]);
if(walk(&c[0], datastr+0, 1, 1, nil) < 0)
error(Egreg);
if(walk(&c[1], datastr+1, 1, 1, nil) < 0)
error(Egreg);
c[0] = d->open(c[0], ORDWR);
c[1] = d->open(c[1], ORDWR);
if(newfd2(fd, c) < 0)
error(Enofd);
poperror();
ufd[0] = fd[0];
ufd[1] = fd[1];
return 0;
}
long
syspipe(ulong *arg)
{
int fd[2];
Chan *c[2];
Dev *d;
static char *datastr[] = {"data", "data1"};
validaddr(arg[0], sizeof(fd), 1);
validalign(arg[0], sizeof(int));
d = devtab[devno('|', 0)];
c[0] = namec("#|", Atodir, 0, 0);
c[1] = 0;
fd[0] = -1;
fd[1] = -1;
if(waserror()){
cclose(c[0]);
if(c[1])
cclose(c[1]);
nexterror();
}
c[1] = cclone(c[0]);
if(walk(&c[0], datastr+0, 1, 1, nil) < 0)
error(Egreg);
if(walk(&c[1], datastr+1, 1, 1, nil) < 0)
error(Egreg);
c[0] = d->open(c[0], ORDWR);
c[1] = d->open(c[1], ORDWR);
if(newfd2(fd, c) < 0)
error(Enofd);
poperror();
((int*)arg[0])[0] = fd[0];
((int*)arg[0])[1] = fd[1];
return 0;
}
