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more debugging

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This commit is contained in:
rsc 2005-01-04 21:24:52 +00:00
parent 020c80587a
commit e2a1725dfc
1 changed files with 149 additions and 82 deletions
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223
src/cmd/9pserve.c
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@ -76,6 +76,7 @@ int isunix;
Queue *outq; Queue *outq;
Queue *inq; Queue *inq;
int verbose = 0; int verbose = 0;
int logging = 0;
int msize = 8192; int msize = 8192;
void *gethash(Hash**, uint); void *gethash(Hash**, uint);
@ -85,9 +86,11 @@ Msg *mread9p(Ioproc*, int);
int mwrite9p(Ioproc*, int, uchar*); int mwrite9p(Ioproc*, int, uchar*);
uchar *read9ppkt(Ioproc*, int); uchar *read9ppkt(Ioproc*, int);
int write9ppkt(int, uchar*); int write9ppkt(int, uchar*);
Msg *msgnew(void); Msg *msgnew(int);
void msgput(Msg*); void msgput(Msg*);
void msgclear(Msg*);
Msg *msgget(int); Msg *msgget(int);
void msgincref(Msg*);
Fid *fidnew(int); Fid *fidnew(int);
void fidput(Fid*); void fidput(Fid*);
void *emalloc(int); void *emalloc(int);
@ -109,11 +112,12 @@ int iorecvfd(Ioproc*, int);
int iosendfd(Ioproc*, int, int); int iosendfd(Ioproc*, int, int);
void mainproc(void*); void mainproc(void*);
int ignorepipe(void*, char*); int ignorepipe(void*, char*);
int timefmt(Fmt*);
void void
usage(void) usage(void)
{ {
fprint(2, "usage: 9pserve [-s service] [-u] address\n"); fprint(2, "usage: 9pserve [-lv] address\n");
fprint(2, "\treads/writes 9P messages on stdin/stdout\n"); fprint(2, "\treads/writes 9P messages on stdin/stdout\n");
exits("usage"); exits("usage");
} }
@ -124,6 +128,7 @@ void
threadmain(int argc, char **argv) threadmain(int argc, char **argv)
{ {
char *file; char *file;
int fd;
ARGBEGIN{ ARGBEGIN{
default: default:
@ -131,27 +136,36 @@ threadmain(int argc, char **argv)
case 'v': case 'v':
verbose++; verbose++;
break; break;
case 's':
close(0);
if(open(file=EARGF(usage()), ORDWR) != 0)
sysfatal("open %s: %r", file);
dup(0, 1);
break;
case 'u': case 'u':
isunix = 1; isunix = 1;
break; break;
case 'l':
logging++;
break;
}ARGEND }ARGEND
if(verbose) fprint(2, "9pserve running\n");
if(argc != 1) if(argc != 1)
usage(); usage();
addr = argv[0]; addr = argv[0];
fmtinstall('T', timefmt);
if((afd = announce(addr, adir)) < 0) if((afd = announce(addr, adir)) < 0)
sysfatal("announce %s: %r", addr); sysfatal("announce %s: %r", addr);
if(logging){
threaddaemonize(); if(strncmp(addr, "unix!", 5) == 0)
mainproc(nil); addr += 5;
file = smprint("%s.log", addr);
if(file == nil)
sysfatal("smprint log: %r");
if((fd = create(file, OWRITE, 0666)) < 0)
sysfatal("create %s: %r", file);
dup(fd, 2);
if(fd > 2)
close(fd);
}
if(verbose) fprint(2, "%T 9pserve running\n");
proccreate(mainproc, nil, STACK);
} }
void void
@ -175,7 +189,7 @@ mainproc(void *v)
f.msize = msize; f.msize = msize;
f.tag = NOTAG; f.tag = NOTAG;
n = convS2M(&f, vbuf, sizeof vbuf); n = convS2M(&f, vbuf, sizeof vbuf);
if(verbose > 1) fprint(2, "* <- %F\n", &f); if(verbose > 1) fprint(2, "%T * <- %F\n", &f);
nn = write(1, vbuf, n); nn = write(1, vbuf, n);
if(n != nn) if(n != nn)
sysfatal("error writing Tversion: %r\n"); sysfatal("error writing Tversion: %r\n");
@ -184,7 +198,7 @@ mainproc(void *v)
sysfatal("convM2S failure"); sysfatal("convM2S failure");
if(f.msize < msize) if(f.msize < msize)
msize = f.msize; msize = f.msize;
if(verbose > 1) fprint(2, "* -> %F\n", &f); if(verbose > 1) fprint(2, "%T * -> %F\n", &f);
threadcreate(inputthread, nil, STACK); threadcreate(inputthread, nil, STACK);
threadcreate(outputthread, nil, STACK); threadcreate(outputthread, nil, STACK);
@ -198,7 +212,7 @@ ignorepipe(void *v, char *s)
USED(v); USED(v);
if(strcmp(s, "sys: write on closed pipe") == 0) if(strcmp(s, "sys: write on closed pipe") == 0)
return 1; return 1;
fprint(2, "msg: %s\n", s); fprint(2, "%T msg: %s\n", s);
return 0; return 0;
} }
@ -215,7 +229,7 @@ listenthread(void *arg)
c = emalloc(sizeof(Conn)); c = emalloc(sizeof(Conn));
c->fd = iolisten(io, adir, c->dir); c->fd = iolisten(io, adir, c->dir);
if(c->fd < 0){ if(c->fd < 0){
if(verbose) fprint(2, "listen: %r\n"); if(verbose) fprint(2, "%T listen: %r\n");
close(afd); close(afd);
free(c); free(c);
return; return;
@ -224,7 +238,7 @@ listenthread(void *arg)
c->internal = chancreate(sizeof(void*), 0); c->internal = chancreate(sizeof(void*), 0);
c->inq = qalloc(); c->inq = qalloc();
c->outq = qalloc(); c->outq = qalloc();
if(verbose) fprint(2, "incoming call on %s\n", c->dir); if(verbose) fprint(2, "%T incoming call on %s\n", c->dir);
threadcreate(connthread, c, STACK); threadcreate(connthread, c, STACK);
} }
} }
@ -279,22 +293,23 @@ connthread(void *arg)
io = ioproc(); io = ioproc();
fd = ioaccept(io, c->fd, c->dir); fd = ioaccept(io, c->fd, c->dir);
if(fd < 0){ if(fd < 0){
if(verbose) fprint(2, "accept %s: %r\n", c->dir); if(verbose) fprint(2, "%T accept %s: %r\n", c->dir);
goto out; goto out;
} }
close(c->fd); close(c->fd);
c->fd = fd; c->fd = fd;
threadcreate(connoutthread, c, STACK); threadcreate(connoutthread, c, STACK);
while((m = mread9p(io, c->fd)) != nil){ while((m = mread9p(io, c->fd)) != nil){
if(verbose > 1) fprint(2, "fd#%d -> %F\n", c->fd, &m->tx); if(verbose > 1) fprint(2, "%T fd#%d -> %F\n", c->fd, &m->tx);
m->c = c; m->c = c;
m->ctag = m->tx.tag; m->ctag = m->tx.tag;
c->nmsg++; c->nmsg++;
if(verbose > 1) fprint(2, "%T fd#%d: new msg %p\n", c->fd, m);
if(puthash(c->tag, m->tx.tag, m) < 0){ if(puthash(c->tag, m->tx.tag, m) < 0){
err(m, "duplicate tag"); err(m, "duplicate tag");
continue; continue;
} }
m->ref++; msgincref(m);
switch(m->tx.type){ switch(m->tx.type){
case Tversion: case Tversion:
m->rx.tag = m->tx.tag; m->rx.tag = m->tx.tag;
@ -312,7 +327,7 @@ connthread(void *arg)
send9pmsg(m); send9pmsg(m);
continue; continue;
} }
m->oldm->ref++; msgincref(m->oldm);
break; break;
case Tattach: case Tattach:
m->afid = nil; m->afid = nil;
@ -399,7 +414,7 @@ connthread(void *arg)
} }
} }
if(verbose) fprint(2, "fd#%d eof; flushing conn\n", c->fd); if(verbose) fprint(2, "%T fd#%d eof; flushing conn\n", c->fd);
/* flush the output queue */ /* flush the output queue */
sendq(c->outq, nil); sendq(c->outq, nil);
@ -410,7 +425,7 @@ connthread(void *arg)
for(i=0; i<NHASH; i++){ for(i=0; i<NHASH; i++){
for(h=c->tag[i]; h; h=hnext){ for(h=c->tag[i]; h; h=hnext){
om = h->v; om = h->v;
m = msgnew(); m = msgnew(0);
m->internal = 1; m->internal = 1;
m->c = c; m->c = c;
c->nmsg++; c->nmsg++;
@ -418,8 +433,8 @@ connthread(void *arg)
m->tx.tag = m->tag; m->tx.tag = m->tag;
m->tx.oldtag = om->tag; m->tx.oldtag = om->tag;
m->oldm = om; m->oldm = om;
om->ref++; /* for m->oldm */ msgincref(om);
m->ref++; /* for outq */ msgincref(m); /* for outq */
sendomsg(m); sendomsg(m);
mm = recvp(c->internal); mm = recvp(c->internal);
assert(mm == m); assert(mm == m);
@ -435,7 +450,7 @@ connthread(void *arg)
for(i=0; i<NHASH; i++){ for(i=0; i<NHASH; i++){
for(h=c->fid[i]; h; h=hnext){ for(h=c->fid[i]; h; h=hnext){
f = h->v; f = h->v;
m = msgnew(); m = msgnew(0);
m->internal = 1; m->internal = 1;
m->c = c; m->c = c;
c->nmsg++; c->nmsg++;
@ -444,10 +459,11 @@ connthread(void *arg)
m->tx.fid = f->fid; m->tx.fid = f->fid;
m->fid = f; m->fid = f;
f->ref++; f->ref++;
m->ref++; msgincref(m);
sendomsg(m); sendomsg(m);
mm = recvp(c->internal); mm = recvp(c->internal);
assert(mm == m); assert(mm == m);
msgclear(m);
msgput(m); /* got from recvp */ msgput(m); /* got from recvp */
msgput(m); /* got from msgnew */ msgput(m); /* got from msgnew */
fidput(f); /* got from hash table */ fidput(f); /* got from hash table */
@ -457,6 +473,7 @@ connthread(void *arg)
} }
out: out:
closeioproc(io);
assert(c->nmsg == 0); assert(c->nmsg == 0);
assert(c->nfid == 0); assert(c->nfid == 0);
close(c->fd); close(c->fd);
@ -488,8 +505,8 @@ openfdthread(void *v)
m = nil; m = nil;
if(c->fdmode == OREAD){ if(c->fdmode == OREAD){
for(;;){ for(;;){
if(verbose) fprint(2, "tread..."); if(verbose) fprint(2, "%T tread...");
m = msgnew(); m = msgnew(0);
m->internal = 1; m->internal = 1;
m->c = c; m->c = c;
m->tx.type = Tread; m->tx.type = Tread;
@ -499,18 +516,18 @@ openfdthread(void *v)
m->tx.offset = tot; m->tx.offset = tot;
m->fid = fid; m->fid = fid;
fid->ref++; fid->ref++;
m->ref++; msgincref(m);
sendomsg(m); sendomsg(m);
recvp(c->internal); recvp(c->internal);
if(m->rx.type == Rerror){ if(m->rx.type == Rerror){
// fprint(2, "read error: %s\n", m->rx.ename); // fprint(2, "%T read error: %s\n", m->rx.ename);
break; break;
} }
if(m->rx.count == 0) if(m->rx.count == 0)
break; break;
tot += m->rx.count; tot += m->rx.count;
if(iowrite(io, c->fd, m->rx.data, m->rx.count) != m->rx.count){ if(iowrite(io, c->fd, m->rx.data, m->rx.count) != m->rx.count){
// fprint(2, "pipe write error: %r\n"); // fprint(2, "%T pipe write error: %r\n");
break; break;
} }
msgput(m); msgput(m);
@ -519,16 +536,16 @@ openfdthread(void *v)
} }
}else{ }else{
for(;;){ for(;;){
if(verbose) fprint(2, "twrite..."); if(verbose) fprint(2, "%T twrite...");
n = sizeof buf; n = sizeof buf;
if(n > msize) if(n > msize)
n = msize; n = msize;
if((n=ioread(io, c->fd, buf, n)) <= 0){ if((n=ioread(io, c->fd, buf, n)) <= 0){
if(n < 0) if(n < 0)
fprint(2, "pipe read error: %r\n"); fprint(2, "%T pipe read error: %r\n");
break; break;
} }
m = msgnew(); m = msgnew(0);
m->internal = 1; m->internal = 1;
m->c = c; m->c = c;
m->tx.type = Twrite; m->tx.type = Twrite;
@ -539,11 +556,11 @@ openfdthread(void *v)
m->tx.offset = tot; m->tx.offset = tot;
m->fid = fid; m->fid = fid;
fid->ref++; fid->ref++;
m->ref++; msgincref(m);
sendomsg(m); sendomsg(m);
recvp(c->internal); recvp(c->internal);
if(m->rx.type == Rerror){ if(m->rx.type == Rerror){
// fprint(2, "write error: %s\n", m->rx.ename); // fprint(2, "%T write error: %s\n", m->rx.ename);
} }
tot += n; tot += n;
msgput(m); msgput(m);
@ -551,17 +568,16 @@ openfdthread(void *v)
m = nil; m = nil;
} }
} }
/* CLUNK NOT HAPPENING */ if(verbose) fprint(2, "%T eof on %d fid %d\n", c->fd, fid->fid);
if(verbose) fprint(2, "eof on %d fid %d\n", c->fd, fid->fid);
close(c->fd); close(c->fd);
closeioproc(io); closeioproc(io);
if(m){ if(m){
msgput(m); msgput(m);
msgput(m); msgput(m);
} }
if(verbose) fprint(2, "eof on %d fid %d ref %d\n", c->fd, fid->fid, fid->ref); if(verbose) fprint(2, "%T eof on %d fid %d ref %d\n", c->fd, fid->fid, fid->ref);
if(--fid->openfd == 0){ if(--fid->openfd == 0){
m = msgnew(); m = msgnew(0);
m->internal = 1; m->internal = 1;
m->c = c; m->c = c;
m->tx.type = Tclunk; m->tx.type = Tclunk;
@ -569,7 +585,7 @@ openfdthread(void *v)
m->tx.fid = fid->fid; m->tx.fid = fid->fid;
m->fid = fid; m->fid = fid;
fid->ref++; fid->ref++;
m->ref++; msgincref(m);
sendomsg(m); sendomsg(m);
recvp(c->internal); recvp(c->internal);
msgput(m); msgput(m);
@ -594,7 +610,7 @@ xopenfd(Msg *m)
err(m, errs); err(m, errs);
/* XXX return here? */ /* XXX return here? */
} }
if(verbose) fprint(2, "xopen pipe %d %d...", p[0], p[1]); if(verbose) fprint(2, "%T xopen pipe %d %d...", p[0], p[1]);
/* now we're committed. */ /* now we're committed. */
@ -673,7 +689,7 @@ connoutthread(void *arg)
break; break;
case Tauth: case Tauth:
if(err && m->afid){ if(err && m->afid){
fprint(2, "auth error\n"); fprint(2, "%T auth error\n");
if(delhash(m->c->fid, m->afid->cfid, m->afid) == 0) if(delhash(m->c->fid, m->afid->cfid, m->afid) == 0)
fidput(m->fid); fidput(m->fid);
} }
@ -691,10 +707,10 @@ connoutthread(void *arg)
} }
if(delhash(m->c->tag, m->ctag, m) == 0) if(delhash(m->c->tag, m->ctag, m) == 0)
msgput(m); msgput(m);
if(verbose > 1) fprint(2, "fd#%d <- %F\n", c->fd, &m->rx); if(verbose > 1) fprint(2, "%T fd#%d <- %F\n", c->fd, &m->rx);
rewritehdr(&m->rx, m->rpkt); rewritehdr(&m->rx, m->rpkt);
if(mwrite9p(io, c->fd, m->rpkt) < 0) if(mwrite9p(io, c->fd, m->rpkt) < 0)
if(verbose) fprint(2, "write error: %r\n"); if(verbose) fprint(2, "%T write error: %r\n");
msgput(m); msgput(m);
if(c->inputstalled && c->nmsg < MAXMSG) if(c->inputstalled && c->nmsg < MAXMSG)
nbsendp(c->inc, 0); nbsendp(c->inc, 0);
@ -714,14 +730,14 @@ outputthread(void *arg)
io = ioproc(); io = ioproc();
threadsetname("output"); threadsetname("output");
while((m = recvq(outq)) != nil){ while((m = recvq(outq)) != nil){
if(verbose > 1) fprint(2, "* <- %F\n", &m->tx); if(verbose > 1) fprint(2, "%T * <- %F\n", &m->tx);
rewritehdr(&m->tx, m->tpkt); rewritehdr(&m->tx, m->tpkt);
if(mwrite9p(io, 1, m->tpkt) < 0) if(mwrite9p(io, 1, m->tpkt) < 0)
sysfatal("output error: %r"); sysfatal("output error: %r");
msgput(m); msgput(m);
} }
closeioproc(io); closeioproc(io);
fprint(2, "output eof\n"); fprint(2, "%T output eof\n");
threadexitsall(0); threadexitsall(0);
} }
@ -734,30 +750,30 @@ inputthread(void *arg)
Ioproc *io; Ioproc *io;
threadsetname("input"); threadsetname("input");
if(verbose) fprint(2, "input thread\n"); if(verbose) fprint(2, "%T input thread\n");
io = ioproc(); io = ioproc();
USED(arg); USED(arg);
while((pkt = read9ppkt(io, 0)) != nil){ while((pkt = read9ppkt(io, 0)) != nil){
n = GBIT32(pkt); n = GBIT32(pkt);
if(n < 7){ if(n < 7){
fprint(2, "short 9P packet from server\n"); fprint(2, "%T short 9P packet from server\n");
free(pkt); free(pkt);
continue; continue;
} }
if(verbose > 2) fprint(2, "read %.*H\n", n, pkt); if(verbose > 2) fprint(2, "%T read %.*H\n", n, pkt);
tag = GBIT16(pkt+5); tag = GBIT16(pkt+5);
if((m = msgget(tag)) == nil){ if((m = msgget(tag)) == nil){
fprint(2, "unexpected 9P response tag %d\n", tag); fprint(2, "%T unexpected 9P response tag %d\n", tag);
free(pkt); free(pkt);
continue; continue;
} }
if((nn = convM2S(pkt, n, &m->rx)) != n){ if((nn = convM2S(pkt, n, &m->rx)) != n){
fprint(2, "bad packet - convM2S %d but %d\n", nn, n); fprint(2, "%T bad packet - convM2S %d but %d\n", nn, n);
free(pkt); free(pkt);
msgput(m); msgput(m);
continue; continue;
} }
if(verbose > 1) fprint(2, "* -> %F%s\n", &m->rx, if(verbose > 1) fprint(2, "%T * -> %F%s\n", &m->rx,
m->internal ? " (internal)" : ""); m->internal ? " (internal)" : "");
m->rpkt = pkt; m->rpkt = pkt;
m->rx.tag = m->ctag; m->rx.tag = m->ctag;
@ -769,7 +785,7 @@ inputthread(void *arg)
msgput(m); msgput(m);
} }
closeioproc(io); closeioproc(io);
//fprint(2, "input eof\n"); //fprint(2, "%T input eof\n");
threadexitsall(0); threadexitsall(0);
} }
@ -792,7 +808,7 @@ delhash(Hash **ht, uint n, void *v)
for(l=&ht[n%NHASH]; h=*l; l=&h->next) for(l=&ht[n%NHASH]; h=*l; l=&h->next)
if(h->n == n){ if(h->n == n){
if(h->v != v){ if(h->v != v){
if(verbose) fprint(2, "delhash %d got %p want %p\n", n, h->v, v); if(verbose) fprint(2, "%T delhash %d got %p want %p\n", n, h->v, v);
return -1; return -1;
} }
*l = h->next; *l = h->next;
@ -856,8 +872,16 @@ Msg **msgtab;
int nmsgtab; int nmsgtab;
Msg *freemsg; Msg *freemsg;
void
msgincref(Msg *m)
{
if(verbose > 1) fprint(2, "%T msgincref @0x%lux %p tag %d/%d ref %d=>%d\n",
getcallerpc(&m), m, m->tag, m->ctag, m->ref, m->ref+1);
m->ref++;
}
Msg* Msg*
msgnew(void) msgnew(int x)
{ {
Msg *m; Msg *m;
@ -870,36 +894,68 @@ msgnew(void)
m = freemsg; m = freemsg;
freemsg = m->next; freemsg = m->next;
m->ref = 1; m->ref = 1;
if(verbose > 1) fprint(2, "%T msgnew @0x%lux %p tag %d ref %d\n",
getcallerpc(&x), m, m->tag, m->ref);
return m; return m;
} }
/*
* Clear data associated with connections, so that
* if all msgs have been msgcleared, the connection
* can be freed. Note that this does *not* free the tpkt
* and rpkt; they are freed in msgput with the msg itself.
* The io write thread might still be holding a ref to msg
* even once the connection has finished with it.
*/
void
msgclear(Msg *m)
{
if(m->c){
m->c->nmsg--;
m->c = nil;
}
if(m->oldm){
msgput(m->oldm);
m->oldm = nil;
}
if(m->fid){
fidput(m->fid);
m->fid = nil;
}
if(m->afid){
fidput(m->afid);
m->afid = nil;
}
if(m->newfid){
fidput(m->newfid);
m->newfid = nil;
}
if(m->rx.type == Ropenfd && m->rx.unixfd >= 0){
close(m->rx.unixfd);
m->rx.unixfd = -1;
}
}
void void
msgput(Msg *m) msgput(Msg *m)
{ {
if(m == nil) if(m == nil)
return; return;
if(verbose > 2) fprint(2, "msgput tag %d/%d ref %d\n", m->tag, m->ctag, m->ref); if(verbose > 1) fprint(2, "%T msgput 0x%lux %p tag %d/%d ref %d\n",
getcallerpc(&m), m, m->tag, m->ctag, m->ref);
assert(m->ref > 0); assert(m->ref > 0);
if(--m->ref > 0) if(--m->ref > 0)
return; return;
m->c->nmsg--; msgclear(m);
m->c = nil; if(m->tpkt){
msgput(m->oldm);
m->oldm = nil;
fidput(m->fid);
m->fid = nil;
fidput(m->afid);
m->afid = nil;
fidput(m->newfid);
m->newfid = nil;
free(m->tpkt); free(m->tpkt);
m->tpkt = nil; m->tpkt = nil;
}
if(m->rpkt){
free(m->rpkt); free(m->rpkt);
m->rpkt = nil; m->rpkt = nil;
if(m->rx.type == Ropenfd) }
close(m->rx.unixfd);
m->rx.unixfd = -1;
m->isopenfd = 0; m->isopenfd = 0;
m->internal = 0; m->internal = 0;
m->next = freemsg; m->next = freemsg;
@ -916,8 +972,8 @@ msgget(int n)
m = msgtab[n]; m = msgtab[n];
if(m->ref == 0) if(m->ref == 0)
return nil; return nil;
if(verbose) fprint(2, "msgget %d = %p\n", n, m); if(verbose) fprint(2, "%T msgget %d = %p\n", n, m);
m->ref++; msgincref(m);
return m; return m;
} }
@ -1055,12 +1111,12 @@ mread9p(Ioproc *io, int fd)
if((pkt = read9ppkt(io, fd)) == nil) if((pkt = read9ppkt(io, fd)) == nil)
return nil; return nil;
m = msgnew(); m = msgnew(0);
m->tpkt = pkt; m->tpkt = pkt;
n = GBIT32(pkt); n = GBIT32(pkt);
nn = convM2S(pkt, n, &m->tx); nn = convM2S(pkt, n, &m->tx);
if(nn != n){ if(nn != n){
fprint(2, "read bad packet from %d\n", fd); fprint(2, "%T read bad packet from %d\n", fd);
return nil; return nil;
} }
return m; return m;
@ -1072,15 +1128,15 @@ mwrite9p(Ioproc *io, int fd, uchar *pkt)
int n, nfd; int n, nfd;
n = GBIT32(pkt); n = GBIT32(pkt);
if(verbose > 2) fprint(2, "write %d %d %.*H\n", fd, n, n, pkt); if(verbose > 2) fprint(2, "%T write %d %d %.*H\n", fd, n, n, pkt);
if(iowrite(io, fd, pkt, n) != n){ if(iowrite(io, fd, pkt, n) != n){
fprint(2, "write error: %r\n"); fprint(2, "%T write error: %r\n");
return -1; return -1;
} }
if(pkt[4] == Ropenfd){ if(pkt[4] == Ropenfd){
nfd = GBIT32(pkt+n-4); nfd = GBIT32(pkt+n-4);
if(iosendfd(io, fd, nfd) < 0){ if(iosendfd(io, fd, nfd) < 0){
fprint(2, "send fd error: %r\n"); fprint(2, "%T send fd error: %r\n");
return -1; return -1;
} }
} }
@ -1182,3 +1238,14 @@ ioaccept(Ioproc *io, int fd, char *dir)
{ {
return iocall(io, _ioaccept, fd, dir); return iocall(io, _ioaccept, fd, dir);
} }
int
timefmt(Fmt *fmt)
{
static char *mon[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
Tm tm;
tm = *localtime(time(0));
return fmtprint(fmt, "%s %2d %02d:%02d:%02d",
mon[tm.mon], tm.mday, tm.hour, tm.min, tm.sec);
}