1991/1112/port/devproc.c (diff list | history)

1991/1111/sys/src/9/port/devproc.c:26,35 – 1991/1112/sys/src/9/port/devproc.c:26,35 (short | long | prev | next)
1991/1109		"ctl", {Qctl}, 0, 0000, "mem", {Qmem}, 0, 0000, "note", {Qnote}, 0, 0000,
1990/11211		"notepg", {Qnotepg}, 0, 0200,
1991/1112		"notepg", {Qnotepg}, 0, 0000,
1991/1109		"proc", {Qproc}, sizeof(Proc), 0000,
1991/0705		"segment", {Qsegment}, 0, 0400,
1991/0807		"status", {Qstatus}, STATSIZE, 0400,
1991/1112		"segment", {Qsegment}, 0, 0444, "status", {Qstatus}, STATSIZE, 0444,
1991/1109		"text", {Qtext}, 0, 0000,
1990/0227		};
1991/1111/sys/src/9/port/devproc.c:72,78 – 1991/1112/sys/src/9/port/devproc.c:72,78
1990/0227		if(pid == 0) return 0; sprint(buf, "%d", pid);
1991/1109		devdir(c, (Qid){CHDIR|((s+1)<<QSHIFT), pid}, buf, 0, p->user, CHDIR|0500, dp);
1991/1112		devdir(c, (Qid){CHDIR|((s+1)<<QSHIFT), pid}, buf, 0, p->user, CHDIR|0555, dp);
1990/0227		return 1; } if(s >= NPROC)
1991/1111/sys/src/9/port/devproc.c:141,151 – 1991/1112/sys/src/9/port/devproc.c:141,149
1991/0705		Segment *s;
1990/0227		Chan *tc;
1990/11211		if(c->qid.path == CHDIR){
1990/03081		if(omode != OREAD)
1990/11211		error(Eperm);
1990/03081		goto done; }
1991/1112		if(c->qid.path & CHDIR) return devopen(c, omode, 0, 0, procgen);
1990/0227		p = proctab(SLOT(c->qid));
1990/1110		pg = p->pgrp;
1990/11211		if(p->pid != PID(c->qid))
1991/1111/sys/src/9/port/devproc.c:155,160 – 1991/1112/sys/src/9/port/devproc.c:153,160
1990/0227		switch(QID(c->qid)){ case Qtext:
1991/1112		if(omode != OREAD) error(Eperm);
1991/1110		tc = proctext(c, p);
1990/0227		tc->offset = 0;
1991/1110
1991/1111/sys/src/9/port/devproc.c:164,169 – 1991/1112/sys/src/9/port/devproc.c:164,171
1990/0227		case Qnote:
1991/1110		case Qmem:
1991/0705		case Qsegment:
1991/1112		case Qproc: case Qstatus:
1990/0227		break;
1990/1110		case Qnotepg:
1991/1111/sys/src/9/port/devproc.c:172,184 – 1991/1112/sys/src/9/port/devproc.c:174,179
1990/11211		c->pgrpid.path = pg->index+1; c->pgrpid.vers = pg->pgrpid;
1990/1110		break;
1990/0227		case Qdir: case Qproc: case Qstatus:
1990/1110		if(omode != OREAD)
1990/11211		error(Eperm);
1990/0424		break;
1990/0227		default: pprint("unknown qid in devopen\n");
1990/11211		error(Egreg);
1991/1111/sys/src/9/port/devproc.c:187,197 – 1991/1112/sys/src/9/port/devproc.c:182,190
1991/1110		/* Affix pid to qid */
1990/0227		if(p->state != Dead)
1990/11211		c->qid.vers = p->pid;
1990/03081		done:
1990/0227		c->mode = omode; c->flag |= COPEN; c->offset = 0; return c;
1991/1112		return devopen(c, omode, 0, 0, procgen); ;
1990/0227		} void
1991/1111/sys/src/9/port/devproc.c:212,217 – 1991/1112/sys/src/9/port/devproc.c:205,213
1991/1109		Proc *p; Dir d;
1991/1112		if(c->qid.path&CHDIR) error(Eperm);
1991/1109		convM2D(db, &d); p = proctab(SLOT(c->qid)); if(p->pid != PID(c->qid))
1991/1111/sys/src/9/port/devproc.c:349,354 – 1991/1112/sys/src/9/port/devproc.c:345,352
1991/0705		return 0; if(offset+n > j) n = j-offset;
1991/1112		if(n == 0 && offset == 0) errors("no segments");
1991/0705		memmove(a, &statbuf[offset], n); return n;
1990/0227		}
1991/1111/sys/src/9/port/devproc.c:425,430 – 1991/1112/sys/src/9/port/devproc.c:423,430
1991/1110		break;
1990/0227		case Qnote:
1991/1112		if(p->kp) errors("can' t note kproc");
1990/0614		k = kmap(p->upage); up = (User*)VA(k);
1990/0227		if(up->p != p){
1991/1111/sys/src/9/port/devproc.c:460,466 – 1991/1112/sys/src/9/port/devproc.c:460,468
1991/1110		Segment *s; s = p->seg[TSEG]; if(s==0 || p->state==Dead)
1991/1112		if(s == 0) errors("no text segment"); if(p->state==Dead)
1991/1110		error(Eprocdied); lock(s);
1991/1111/sys/src/9/port/devproc.c:546,593 – 1991/1112/sys/src/9/port/devproc.c:548,589
1991/1110		void
1991/1109		procctlreq(Proc *p, char *va, int n) { if(n >= 4) { if(strncmp(va, "exit", 4) == 0) { if(p->state == Broken) ready(p); return; } if(strncmp(va, "stop", 4) == 0) {
1991/1110		procstopwait(p, Proc_stopme);
1991/1109		return; } if(strncmp(va, "kill", 4) == 0) { postnote(p, 0, "sys: killed", NExit); p->procctl = Proc_exitme; return; }
1991/1110		if(strncmp(va, "hang", 4) == 0) { p->hang = 1; return; }
1991/1109		}
1991/1112		char buf[NAMELEN];
1991/1109
1991/1110		if(n >= 8 && strncmp(va, "waitstop", 8) == 0) { procstopwait(p, 0); return;
1991/1112		if(n > NAMELEN) n = NAMELEN; strncpy(buf, va, n); if(strncmp(buf, "exit", 4) == 0) { if(p->state == Broken) ready(p);
1991/1110		}                  if(n >= 9 && strncmp(va, "startstop", 9) == 0) {
1991/1112		else if(strncmp(buf, "stop", 4) == 0) procstopwait(p, Proc_stopme); else if(strncmp(buf, "kill", 4) == 0) { if(p->state == Stopped) ready(p); postnote(p, 0, "sys: killed", NExit); p->procctl = Proc_exitme; } else if(strncmp(buf, "hang", 4) == 0) p->hang = 1; else if(strncmp(buf, "waitstop", 8) == 0) procstopwait(p, 0); else if(strncmp(buf, "startstop", 9) == 0) {
1991/1110		if(p->state != Stopped) errors("not stopped"); p->procctl = Proc_traceme; ready(p); procstopwait(p, Proc_traceme); return; }
1991/1109		if(n >= 5 && strncmp(va, "start", 5) == 0) {
1991/1112		else if(strncmp(buf, "start", 5) == 0) {
1991/1109		if(p->state != Stopped) errors("not stopped"); ready(p); return; }
1991/1110
1991/1109		error(Ebadctl);
1991/1112		else error(Ebadctl);
1991/1109		} int