int
threadspawnl(int fd[3], char *cmd, ...)
{
char **argv, *s;
int n, pid;
va_list arg;
va_start(arg, cmd);
for(n=0; va_arg(arg, char*) != nil; n++)
;
n++;
va_end(arg);
argv = malloc(n*sizeof(argv[0]));
if(argv == nil)
return -1;
va_start(arg, cmd);
for(n=0; (s=va_arg(arg, char*)) != nil; n++)
argv[n] = s;
argv[n] = 0;
va_end(arg);
pid = threadspawn(fd, cmd, argv);
free(argv);
return pid;
}
Waitmsg*
runprocfd(char *file, char **v, int fd[3])
{
int pid, i;
threadwaitchan();
pid = threadspawn(fd, file, v);
for(i=0; i<3; i++)
close(fd[i]);
if(pid < 0)
return nil;
return procwait(pid);
}
void
kickjob(Job *j)
{
int i;
int fd[3];
int p[2];
VtLog *l;
if((fd[0] = open("/dev/null", ORDWR)) < 0) {
vtlogprint(errlog, "%T open /dev/null: %r\n");
return;
}
if(pipe(p) < 0) {
vtlogprint(errlog, "%T pipe: %r\n");
close(fd[0]);
return;
}
qlock(&j->lk);
l = j->oldlog;
j->oldlog = j->newlog;
j->newlog = l;
qlock(&l->lk);
for(i=0; i<l->nchunk; i++)
l->chunk[i].wp = l->chunk[i].p;
qunlock(&l->lk);
j->oldok = j->newok;
j->newok = -1;
qunlock(&j->lk);
fd[1] = p[1];
fd[2] = p[1];
j->pid = threadspawn(fd, j->argv[0], j->argv);
if(j->pid < 0) {
vtlogprint(errlog, "%T exec %s: %r\n", j->argv[0]);
close(fd[0]);
close(fd[1]);
close(p[0]);
}
// fd[0], fd[1], fd[2] are closed now
j->pipe = p[0];
j->nrun++;
vtproc(piper, j);
}
void
getxselarg(Text* t)
{
char* av[] = { "xsel2arg", 0 };
int pfd[2], sfd[3], pid, n, nb, nr, nulls;
char buf[1024];
Rune *r;
textdelete(t, 0, t->file->b.nc, TRUE);
if(pipe(pfd) < 0)
{
warning(nil, "getxselarg: can't create pipe");
return;
}
fcntl(pfd[0], F_SETFD, FD_CLOEXEC);
fcntl(pfd[1], F_SETFD, FD_CLOEXEC);
sfd[0] = open("/dev/null", OREAD);
sfd[1] = pfd[0];
sfd[2] = dup(erroutfd, -1);
pid = threadspawn(sfd, av[0], av);
if(pid == -1)
{
warning(nil, "can't spawn thread %s: %r\n", av[0]);
return;
}
while(0 < (n = read(pfd[1], buf, 1024)))
{
r = runemalloc(n+1);
cvttorunes(buf, n, r, &nb, &nr, &nulls);
textinsert(t, 0, r, nr, TRUE);
free(r);
}
textsetselect(t, 0, t->file->b.nc);
}
void
putxsel(Text* t)
{
char* av[] = { "setguisel", 0, 0 };
int pfd[2], sfd[3], pid, n, m, q, q0, q1;
Rune *r;
char *s;
q0 = t->q0;
q1 = t->q1;
if(q0 == q1)
return;
if(pipe(pfd) < 0)
{
warning(nil, "putxsel: can't create pipe");
return;
}
fcntl(pfd[0], F_SETFD, FD_CLOEXEC);
fcntl(pfd[1], F_SETFD, FD_CLOEXEC);
sfd[0] = pfd[0];
sfd[1] = open("/dev/null", OWRITE);
sfd[2] = dup(erroutfd, -1);
if(t->file->name)
av[1] = runetobyte(t->file->name, t->file->nname);
pid = threadspawn(sfd, av[0], av);
free(av[1]);
if(pid == -1)
{
warning(nil, "can't spawn thread %s: %r\n", av[0]);
return;
}
r = fbufalloc();
s = fbufalloc();
for(q=q0; q<q1; q+=n)
{
n = q1 - q;
if(n > BUFSIZE/UTFmax)
n = BUFSIZE/UTFmax;
bufread(&t->file->b, q, r, n);
m = snprint(s, BUFSIZE+1, "%.*S", n, r);
if(write(pfd[1], s, m) != m)
{
warning(nil, "error writing to setguisel: %r\n");
break;
}
}
fbuffree(r);
fbuffree(s);
close(pfd[1]);
newsel(t);
}
void
threadmain(int argc, char **argv)
{
int p[2], fd[3], pid[2];
char *a[4], *devdraw;
ARGBEGIN{}ARGEND
if(argc != 1)
usage();
// Make sure we don't kill our parent whilst killing
// our children.
setsid();
if(pipe(p) < 0)
sysfatal("pipe: %r");
fd[0] = dup(p[0], -1);
fd[1] = dup(p[0], -1);
fd[2] = dup(2, -1);
a[0] = "rc";
a[1] = "-c";
a[2] = argv[0];
a[3] = nil;
if((pid[0] = threadspawn(fd, a[0], a)) < 0)
sysfatal("threadspawn: %r");
fd[0] = dup(p[1], -1);
fd[1] = dup(p[1], -1);
fd[2] = dup(2, -1);
putenv("NOLIBTHREADDAEMONIZE", "1");
devdraw = getenv("DEVDRAW");
if(devdraw == nil)
devdraw = "devdraw";
if((pid[1] = threadspawnl(fd, devdraw, devdraw, "(devdraw)", nil)) < 0)
sysfatal("threadspawnl: %r");
close(p[0]);
close(p[1]);
recvp(threadwaitchan());
postnote(PNGROUP, pid[0], "hangup");
postnote(PNGROUP, pid[1], "hangup");
//recvp(threadwaitchan());
threadexitsall("");
/*
if ((pid = fork()) < 0)
sysfatal("fork: %r");
switch(pid){
case 0:
close(p[0]);
dup(p[1], 0);
dup(p[1], 1);
a[0] = "rc";
a[1] = "-c";
a[2] = argv[0];
a[3] = nil;
if(exec("rc", a) < 0)
sysfatal("execl: %r");
default:
close(p[1]);
dup(p[0], 0);
dup(p[0], 1);
putenv("NOLIBTHREADDAEMONIZE", "1");
devdraw = getenv("DEVDRAW");
if(devdraw == nil)
devdraw = "devdraw";
if(execl(devdraw, devdraw, "(devdraw)", nil) < 0)
sysfatal("execl: %r");
}
exits(0);
*/
}
