static void _sfwrsync()
#endif
{
reg Sfpool_t *p;
reg Sfio_t *f;
reg int n;
/* sync all pool heads */
for (p = _Sfpool.next; p; p = p->next) {
if (p->n_sf <= 0)
continue;
f = p->sf[0];
if (!SFFROZEN(f) && f->next > f->data &&
(f->mode & SF_WRITE) && f->extent < 0)
(void) _sfflsbuf(f, -1);
}
/* and all the ones in the discrete pool */
for (n = 0; n < _Sfpool.n_sf; ++n) {
f = _Sfpool.sf[n];
if (!SFFROZEN(f) && f->next > f->data &&
(f->mode & SF_WRITE) && f->extent < 0)
(void) _sfflsbuf(f, -1);
}
}
static int _sfall()
#endif
{
reg Sfpool_t *p, *next;
reg Sfio_t* f;
reg int n, rv;
reg int nsync, count, loop;
#define MAXLOOP 3
for(loop = 0; loop < MAXLOOP; ++loop)
{ rv = nsync = count = 0;
for(p = &_Sfpool; p; p = next)
{ /* find the next legitimate pool */
for(next = p->next; next; next = next->next)
if(next->n_sf > 0)
break;
/* walk the streams for _Sfpool only */
for(n = 0; n < ((p == &_Sfpool) ? p->n_sf : 1); ++n)
{ count += 1;
f = p->sf[n];
if(f->flags&SF_STRING )
goto did_sync;
if(SFFROZEN(f))
continue;
if((f->mode&SF_READ) && (f->mode&SF_SYNCED) )
goto did_sync;
if((f->mode&SF_READ) && !(f->bits&SF_MMAP) &&
f->next == f->endb)
goto did_sync;
if((f->mode&SF_WRITE) && !(f->bits&SF_HOLE) &&
f->next == f->data)
goto did_sync;
if(sfsync(f) < 0)
rv = -1;
did_sync:
nsync += 1;
}
}
if(nsync == count)
break;
}
return rv;
}
