1990/1110/port/devproc.c (diff list | history)

1990/0914/sys/src/9/port/devproc.c:4,11 – 1990/1110/sys/src/9/port/devproc.c:4,13 (short | long | prev | next)
1990/0227		#include "dat.h" #include "fns.h" #include "errno.h"
1990/0914		#include "io.h"
1990/0227
1990/1110		/* BUG mips only TAKE IT OUT */ #include "io.h"
1990/0227		#include "devtab.h" enum{
1990/0914/sys/src/9/port/devproc.c:13,18 – 1990/1110/sys/src/9/port/devproc.c:15,21
1990/0227		Qctl, Qmem, Qnote,
1990/1110		Qnotepg,
1990/0227		Qproc, Qstatus, Qtext,
1990/0914/sys/src/9/port/devproc.c:22,27 – 1990/1110/sys/src/9/port/devproc.c:25,31
1990/0227		"ctl", Qctl, 0, 0600, "mem", Qmem, 0, 0600, "note", Qnote, 0, 0600,
1990/1110		"notepg", Qnotepg, 0, 0200,
1990/0227		"proc", Qproc, sizeof(Proc), 0600, "status", Qstatus, NAMELEN+12+6*12, 0600, "text", Qtext, 0, 0600,
1990/0914/sys/src/9/port/devproc.c:109,114 – 1990/1110/sys/src/9/port/devproc.c:113,119
1990/0227		procopen(Chan *c, int omode) { Proc *p;
1990/1110		Pgrp *pg;
1990/0227		Orig *o; Chan *tc;
1990/0914/sys/src/9/port/devproc.c:118,123 – 1990/1110/sys/src/9/port/devproc.c:123,129
1990/03081		goto done; }
1990/0227		p = proctab(SLOT(c->qid));
1990/1110		pg = p->pgrp;
1990/0227		if((p->pid&PIDMASK) != PID(c->qid)) Died: error(0, Eprocdied);
1990/0914/sys/src/9/port/devproc.c:147,157 – 1990/1110/sys/src/9/port/devproc.c:153,170
1990/0227		case Qctl: case Qnote: break;
1990/1110		case Qnotepg: if(omode != OWRITE) error(0, Eperm); c->pgrpid = (pg->pgrpid<<PIDSHIFT)|((pg->index+1)<<QSHIFT); break;
1990/0227		case Qdir:
1990/0614		case Qmem:
1990/0227		case Qproc: case Qstatus:
1990/0424		if(omode!=OREAD)
1990/1110		if(omode != OREAD)
1990/0424		error(0, Eperm); break;
1990/0227		default:
1990/0914/sys/src/9/port/devproc.c:264,270 – 1990/1110/sys/src/9/port/devproc.c:277,283
1990/0227		} /* u area */ if(c->offset>=USERADDR && c->offset<=USERADDR+BY2PG){
1990/1110		if(c->offset>=USERADDR && c->offset<USERADDR+BY2PG){
1990/0227		if(c->offset+n > USERADDR+BY2PG) n = USERADDR+BY2PG - c->offset; pg = p->upage;
1990/0914/sys/src/9/port/devproc.c:283,289 – 1990/1110/sys/src/9/port/devproc.c:296,303
1990/0614		n = KZERO+conf.npage0*BY2PG - c->offset;
1990/0914		memcpy(a, (char*)c->offset, n); return n; } else if(c->offset>=UNCACHED && c->offset<UNCACHED+conf.npage0*BY2PG){
1990/1110		}else if(c->offset>=UNCACHED && c->offset<UNCACHED+conf.npage0*BY2PG){ /* BUT mips only TAKE IT OUT */
1990/0914		if(c->offset+n > UNCACHED+conf.npage0*BY2PG) n = UNCACHED+conf.npage0*BY2PG - c->offset;
1990/0227		memcpy(a, (char*)c->offset, n);
1990/0914/sys/src/9/port/devproc.c:353,358 – 1990/1110/sys/src/9/port/devproc.c:367,373
1990/0227		procwrite(Chan *c, void *va, long n) { Proc *p;
1990/1110		Pgrp *pg;
1990/0227		User *up;
1990/0614		KMap *k;
1990/0227		char buf[ERRLEN];
1990/0914/sys/src/9/port/devproc.c:359,364 – 1990/1110/sys/src/9/port/devproc.c:374,399
1990/0227		if(c->qid & CHDIR) error(0, Eisdir);
1990/1110		/* * 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; }
1990/0227		p = proctab(SLOT(c->qid)); lock(&p->debug); if(waserror()){