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lib9p: add srvacquire/srvrelease

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This commit is contained in:
cinap_lenrek 2011-08-19 05:18:19 +02:00
parent 80c89cfa32
commit 0c1284f602
2 changed files with 50 additions and 17 deletions
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6
sys/include/9p.h
View file

@ -231,6 +231,9 @@ struct Srv {
QLock wlock;
char* addr;
QLock slock;
Ref sref;
};
void srv(Srv*);
@ -275,6 +278,9 @@ int authattach(Req*);
extern void (*_forker)(void (*)(void*), void*, int);
void srvacquire(Srv *);
void srvrelease(Srv *);
Reqqueue* reqqueuecreate(void);
void reqqueuepush(Reqqueue*, Req*, void (*)(Req *));
void reqqueueflush(Reqqueue*, Req*);

61
sys/src/lib9p/srv.c
View file

@ -682,31 +682,19 @@ rwstat(Req*, char*)
{
}
void
srv(Srv *srv)
static void
srvwork(void *v)
{
Srv *srv = v;
Req *r;
fmtinstall('D', dirfmt);
fmtinstall('F', fcallfmt);
if(srv->fpool == nil)
srv->fpool = allocfidpool(srv->destroyfid);
if(srv->rpool == nil)
srv->rpool = allocreqpool(srv->destroyreq);
if(srv->msize == 0)
srv->msize = 8192+IOHDRSZ;
changemsize(srv, srv->msize);
srv->fpool->srv = srv;
srv->rpool->srv = srv;
incref(&srv->sref);
while(r = getreq(srv)){
if(r->error){
respond(r, r->error);
continue;
}
qlock(&srv->slock);
switch(r->ifcall.type){
default:
respond(r, "unknown message");
@ -725,7 +713,10 @@ srv(Srv *srv)
case Tstat: sstat(srv, r); break;
case Twstat: swstat(srv, r); break;
}
qunlock(&srv->slock);
}
if(decref(&srv->sref))
return;
free(srv->rbuf);
srv->rbuf = nil;
@ -741,6 +732,42 @@ srv(Srv *srv)
srv->end(srv);
}
void
srvacquire(Srv *srv)
{
incref(&srv->sref);
qlock(&srv->slock);
}
void
srvrelease(Srv *srv)
{
if(decref(&srv->sref) == 0)
_forker(srvwork, srv, 0);
qunlock(&srv->slock);
}
void
srv(Srv *srv)
{
fmtinstall('D', dirfmt);
fmtinstall('F', fcallfmt);
if(srv->fpool == nil)
srv->fpool = allocfidpool(srv->destroyfid);
if(srv->rpool == nil)
srv->rpool = allocreqpool(srv->destroyreq);
if(srv->msize == 0)
srv->msize = 8192+IOHDRSZ;
changemsize(srv, srv->msize);
srv->fpool->srv = srv;
srv->rpool->srv = srv;
srvwork(srv);
}
void
respond(Req *r, char *error)
{