static long
fsread(Chan *c, void *va, long n, vlong offset)
{
int r;
UnixFd *ufd;
if(c->qid.type & QTDIR)
return fsdirread(c, va, n, offset);
ufd = c->aux;
if(ufd->issocket)
r = read(ufd->fd, va, n);
else
r = pread(ufd->fd, va, n, offset);
if(r < 0)
oserror();
return r;
}
void
loadmboxfaces(char *maildir)
{
CFid *dirfd;
Dir *d;
int i, n;
dirfd = fsopen(mailfs, maildir, OREAD);
if(dirfd != nil){
while((n = fsdirread(dirfd, &d)) > 0){
for(i=0; i<n; i++)
addface(dirface(maildir, d[i].name));
free(d);
}
fsclose(dirfd);
}else
sysfatal("open %s: %r", maildir);
}
long
fsread(Chan *c, void *va, long n, vlong offset)
{
int r;
if(c->qid.type & QTDIR){ /* need to maintain offset only for directories */
qlock(FS(c));
if(waserror()){
qunlock(FS(c));
nexterror();
}
r = fsdirread(c, va, n, offset);
poperror();
qunlock(FS(c));
}else{
osenter();
r = pread(FS(c)->fd, va, n, offset);
osleave();
}
if(r < 0)
fserr(FS(c));
return r;
}
static long
fsread(Chan *c, void *va, long n, vlong offset)
{
HANDLE fh;
DWORD r;
Ufsinfo *uif;
if(c->qid.type & QTDIR)
return fsdirread(c, va, n, offset);
uif = c->aux;
qlock(&uif->oq);
if(waserror()) {
qunlock(&uif->oq);
nexterror();
}
fh = uif->fh;
if(uif->offset != offset) {
LONG high;
high = offset>>32;
offset = SetFilePointer(fh, (LONG)(offset & 0xFFFFFFFF), &high, FILE_BEGIN);
offset |= (vlong)high<<32;
uif->offset = offset;
}
