1 76193d7c 2003-09-30 devnull #include "threadimpl.h"
  2 76193d7c 2003-09-30 devnull 
  3 76193d7c 2003-09-30 devnull int
  4 76193d7c 2003-09-30 devnull threadid(void)
  5 76193d7c 2003-09-30 devnull {
  6 76193d7c 2003-09-30 devnull 	return _threadgetproc()->thread->id;
  7 76193d7c 2003-09-30 devnull }
  8 76193d7c 2003-09-30 devnull 
  9 76193d7c 2003-09-30 devnull int
 10 76193d7c 2003-09-30 devnull threadpid(int id)
 11 76193d7c 2003-09-30 devnull {
 12 76193d7c 2003-09-30 devnull 	int pid;
 13 76193d7c 2003-09-30 devnull 	Proc *p;
 14 76193d7c 2003-09-30 devnull 	Thread *t;
 15 76193d7c 2003-09-30 devnull 
 16 76193d7c 2003-09-30 devnull 	if (id < 0)
 17 76193d7c 2003-09-30 devnull 		return -1;
 18 76193d7c 2003-09-30 devnull 	if (id == 0)
 19 76193d7c 2003-09-30 devnull 		return _threadgetproc()->pid;
 20 76193d7c 2003-09-30 devnull 	lock(&_threadpq.lock);
 21 76193d7c 2003-09-30 devnull 	for (p = _threadpq.head; p->next; p = p->next){
 22 76193d7c 2003-09-30 devnull 		lock(&p->lock);
 23 76193d7c 2003-09-30 devnull 		for (t = p->threads.head; t; t = t->nextt)
 24 76193d7c 2003-09-30 devnull 			if (t->id == id){
 25 76193d7c 2003-09-30 devnull 				pid = p->pid;
 26 76193d7c 2003-09-30 devnull 				unlock(&p->lock);
 27 76193d7c 2003-09-30 devnull 				unlock(&_threadpq.lock);
 28 76193d7c 2003-09-30 devnull 				return pid;
 29 76193d7c 2003-09-30 devnull 			}
 30 76193d7c 2003-09-30 devnull 		unlock(&p->lock);
 31 76193d7c 2003-09-30 devnull 	}
 32 76193d7c 2003-09-30 devnull 	unlock(&_threadpq.lock);
 33 76193d7c 2003-09-30 devnull 	return -1;
 34 76193d7c 2003-09-30 devnull }
 35 76193d7c 2003-09-30 devnull 
 36 76193d7c 2003-09-30 devnull int
 37 76193d7c 2003-09-30 devnull threadsetgrp(int ng)
 38 76193d7c 2003-09-30 devnull {
 39 76193d7c 2003-09-30 devnull 	int og;
 40 76193d7c 2003-09-30 devnull 	Thread *t;
 41 76193d7c 2003-09-30 devnull 
 42 76193d7c 2003-09-30 devnull 	t = _threadgetproc()->thread;
 43 76193d7c 2003-09-30 devnull 	og = t->grp;
 44 76193d7c 2003-09-30 devnull 	t->grp = ng;
 45 76193d7c 2003-09-30 devnull 	return og;
 46 76193d7c 2003-09-30 devnull }
 47 76193d7c 2003-09-30 devnull 
 48 76193d7c 2003-09-30 devnull int
 49 76193d7c 2003-09-30 devnull threadgetgrp(void)
 50 76193d7c 2003-09-30 devnull {
 51 76193d7c 2003-09-30 devnull 	return _threadgetproc()->thread->grp;
 52 76193d7c 2003-09-30 devnull }
 53 76193d7c 2003-09-30 devnull 
 54 76193d7c 2003-09-30 devnull void
 55 be36ff68 2004-04-29 devnull threadsetname(char *fmt, ...)
 56 76193d7c 2003-09-30 devnull {
 57 76193d7c 2003-09-30 devnull 	Proc *p;
 58 76193d7c 2003-09-30 devnull 	Thread *t;
 59 be36ff68 2004-04-29 devnull 	va_list arg;
 60 76193d7c 2003-09-30 devnull 
 61 76193d7c 2003-09-30 devnull 	p = _threadgetproc();
 62 76193d7c 2003-09-30 devnull 	t = p->thread;
 63 7966faa9 2004-09-23 devnull 	if(t->name)
 64 7966faa9 2004-09-23 devnull 		free(t->name);
 65 be36ff68 2004-04-29 devnull 	va_start(arg, fmt);
 66 7966faa9 2004-09-23 devnull 	t->name = vsmprint(fmt, arg);
 67 99dfa1da 2004-06-17 devnull 	va_end(arg);
 68 be36ff68 2004-04-29 devnull 
 69 ba15d71b 2004-10-22 devnull 	_threaddebug(DBGSCHED, "set name %s", t->name);
 70 76193d7c 2003-09-30 devnull /* Plan 9 only 
 71 76193d7c 2003-09-30 devnull 	if(p->nthreads == 1){
 72 76193d7c 2003-09-30 devnull 		snprint(buf, sizeof buf, "#p/%d/args", getpid());
 73 76193d7c 2003-09-30 devnull 		if((fd = open(buf, OWRITE)) >= 0){
 74 76193d7c 2003-09-30 devnull 			snprint(buf, sizeof buf, "%s [%s]", argv0, name);
 75 76193d7c 2003-09-30 devnull 			n = strlen(buf)+1;
 76 76193d7c 2003-09-30 devnull 			s = strchr(buf, ' ');
 77 76193d7c 2003-09-30 devnull 			if(s)
 78 76193d7c 2003-09-30 devnull 				*s = '\0';
 79 76193d7c 2003-09-30 devnull 			write(fd, buf, n);
 80 76193d7c 2003-09-30 devnull 			close(fd);
 81 76193d7c 2003-09-30 devnull 		}
 82 76193d7c 2003-09-30 devnull 	}
 83 76193d7c 2003-09-30 devnull */
 84 76193d7c 2003-09-30 devnull }
 85 76193d7c 2003-09-30 devnull 
 86 76193d7c 2003-09-30 devnull char*
 87 76193d7c 2003-09-30 devnull threadgetname(void)
 88 76193d7c 2003-09-30 devnull {
 89 7966faa9 2004-09-23 devnull 	return _threadgetproc()->thread->name;
 90 76193d7c 2003-09-30 devnull }
 91 76193d7c 2003-09-30 devnull 
 92 76193d7c 2003-09-30 devnull void**
 93 76193d7c 2003-09-30 devnull threaddata(void)
 94 76193d7c 2003-09-30 devnull {
 95 76193d7c 2003-09-30 devnull 	return &_threadgetproc()->thread->udata[0];
 96 76193d7c 2003-09-30 devnull }
 97 76193d7c 2003-09-30 devnull 
 98 76193d7c 2003-09-30 devnull void**
 99 76193d7c 2003-09-30 devnull procdata(void)
100 76193d7c 2003-09-30 devnull {
101 76193d7c 2003-09-30 devnull 	return &_threadgetproc()->udata;
102 76193d7c 2003-09-30 devnull }
103 76193d7c 2003-09-30 devnull 
104 76193d7c 2003-09-30 devnull static Lock privlock;
105 76193d7c 2003-09-30 devnull static int privmask = 1;
106 76193d7c 2003-09-30 devnull 
107 76193d7c 2003-09-30 devnull int
108 76193d7c 2003-09-30 devnull tprivalloc(void)
109 76193d7c 2003-09-30 devnull {
110 76193d7c 2003-09-30 devnull 	int i;
111 76193d7c 2003-09-30 devnull 
112 76193d7c 2003-09-30 devnull 	lock(&privlock);
113 76193d7c 2003-09-30 devnull 	for(i=0; i<NPRIV; i++)
114 76193d7c 2003-09-30 devnull 		if(!(privmask&(1<<i))){
115 76193d7c 2003-09-30 devnull 			privmask |= 1<<i;
116 76193d7c 2003-09-30 devnull 			unlock(&privlock);
117 76193d7c 2003-09-30 devnull 			return i;
118 76193d7c 2003-09-30 devnull 		}
119 76193d7c 2003-09-30 devnull 	unlock(&privlock);
120 76193d7c 2003-09-30 devnull 	return -1;
121 76193d7c 2003-09-30 devnull }
122 76193d7c 2003-09-30 devnull 
123 76193d7c 2003-09-30 devnull void
124 76193d7c 2003-09-30 devnull tprivfree(int i)
125 76193d7c 2003-09-30 devnull {
126 76193d7c 2003-09-30 devnull 	if(i < 0 || i >= NPRIV)
127 76193d7c 2003-09-30 devnull 		abort();
128 76193d7c 2003-09-30 devnull 	lock(&privlock);
129 76193d7c 2003-09-30 devnull 	privmask &= ~(1<<i);
130 76193d7c 2003-09-30 devnull }
131 76193d7c 2003-09-30 devnull 
132 76193d7c 2003-09-30 devnull void**
133 76193d7c 2003-09-30 devnull tprivaddr(int i)
134 76193d7c 2003-09-30 devnull {
135 76193d7c 2003-09-30 devnull 	return &_threadgetproc()->thread->udata[i];
136 76193d7c 2003-09-30 devnull }