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#include "threadimpl.h"
int
threadid(void)
{
return _threadgetproc()->thread->id;
}
int
threadpid(int id)
{
int pid;
Proc *p;
Thread *t;
if (id < 0)
return -1;
if (id == 0)
return _threadgetproc()->pid;
lock(&_threadpq.lock);
for (p = _threadpq.head; p->next; p = p->next){
lock(&p->lock);
for (t = p->threads.head; t; t = t->nextt)
if (t->id == id){
pid = p->pid;
unlock(&p->lock);
unlock(&_threadpq.lock);
return pid;
}
unlock(&p->lock);
}
unlock(&_threadpq.lock);
return -1;
}
int
threadsetgrp(int ng)
{
int og;
Thread *t;
t = _threadgetproc()->thread;
og = t->grp;
t->grp = ng;
return og;
}
int
threadgetgrp(void)
{
return _threadgetproc()->thread->grp;
}
void
threadsetname(char *name)
{
/*
int fd, n;
char buf[128], *s;
*/
Proc *p;
Thread *t;
p = _threadgetproc();
t = p->thread;
if (t->cmdname)
free(t->cmdname);
t->cmdname = strdup(name);
/* Plan 9 only
if(p->nthreads == 1){
snprint(buf, sizeof buf, "#p/%d/args", getpid());
if((fd = open(buf, OWRITE)) >= 0){
snprint(buf, sizeof buf, "%s [%s]", argv0, name);
n = strlen(buf)+1;
s = strchr(buf, ' ');
if(s)
*s = '\0';
write(fd, buf, n);
close(fd);
}
}
*/
}
char*
threadgetname(void)
{
return _threadgetproc()->thread->cmdname;
}
void**
threaddata(void)
{
return &_threadgetproc()->thread->udata[0];
}
void**
procdata(void)
{
return &_threadgetproc()->udata;
}
static Lock privlock;
static int privmask = 1;
int
tprivalloc(void)
{
int i;
lock(&privlock);
for(i=0; i<NPRIV; i++)
if(!(privmask&(1<<i))){
privmask |= 1<<i;
unlock(&privlock);
return i;
}
unlock(&privlock);
return -1;
}
void
tprivfree(int i)
{
if(i < 0 || i >= NPRIV)
abort();
lock(&privlock);
privmask &= ~(1<<i);
}
void**
tprivaddr(int i)
{
return &_threadgetproc()->thread->udata[i];
}
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