1990/1106/gnot/devproc.c (diff list | history)

1990/0617/sys/src/9/gnot/devproc.c:12,17 – 1990/1106/sys/src/9/gnot/devproc.c:12,18 (short | long | prev | next)
1990/03091		Qctl, Qmem, Qnote,
1990/1106		Qnotepg,
1990/03091		Qproc, Qstatus, Qtext,
1990/0617/sys/src/9/gnot/devproc.c:21,26 – 1990/1106/sys/src/9/gnot/devproc.c:22,28
1990/03091		"ctl", Qctl, 0, 0600, "mem", Qmem, 0, 0600, "note", Qnote, 0, 0600,
1990/1106		"notepg", Qnotepg, 0, 0200,
1990/03091		"proc", Qproc, sizeof(Proc), 0600, "status", Qstatus, NAMELEN+12+6*12, 0600, "text", Qtext, 0, 0600,
1990/0617/sys/src/9/gnot/devproc.c:108,113 – 1990/1106/sys/src/9/gnot/devproc.c:110,116
1990/03091		procopen(Chan *c, int omode) { Proc *p;
1990/1106		Pgrp *pg;
1990/03091		Orig *o; Chan *tc;
1990/0617/sys/src/9/gnot/devproc.c:117,122 – 1990/1106/sys/src/9/gnot/devproc.c:120,126
1990/03091		goto done; } p = proctab(SLOT(c->qid));
1990/1106		pg = p->pgrp;
1990/03091		if((p->pid&PIDMASK) != PID(c->qid)) Died: error(0, Eprocdied);
1990/0617/sys/src/9/gnot/devproc.c:146,156 – 1990/1106/sys/src/9/gnot/devproc.c:150,167
1990/03091		case Qctl: case Qnote: break;
1990/1106		case Qnotepg: if(omode != OWRITE) error(0, Eperm); c->pgrpid = (pg->pgrpid<<PIDSHIFT)|((pg->index+1)<<QSHIFT); break;
1990/03091		case Qdir: case Qmem: case Qproc: case Qstatus: if(omode!=OREAD)
1990/1106		if(omode != OREAD)
1990/03091		error(0, Eperm); break; default:
1990/0617/sys/src/9/gnot/devproc.c:347,352 – 1990/1106/sys/src/9/gnot/devproc.c:358,364
1990/03091		procwrite(Chan *c, void *va, long n) { Proc *p;
1990/1106		Pgrp *pg;
1990/03091		User *up;
1990/06021		KMap *k;
1990/03091		char buf[ERRLEN];
1990/0617/sys/src/9/gnot/devproc.c:353,358 – 1990/1106/sys/src/9/gnot/devproc.c:365,390
1990/03091		if(c->qid & CHDIR) error(0, Eisdir);
1990/1106		/* * Special case: don't worry about process, just use remembered group */ if(QID(c->qid) == Qnotepg){ pg = pgrptab(SLOT(c->pgrpid)); lock(&pg->debug); if(waserror()){ unlock(&pg->debug); nexterror(); } if((pg->pgrpid&PIDMASK) != PID(c->pgrpid)){ unlock(&pg->debug); goto Died; } pgrpnote(pg, va, n, NUser); unlock(&pg->debug); return n; }
1990/03091		p = proctab(SLOT(c->qid)); lock(&p->debug); if(waserror()){