/* -*-c-*-
*
- * $Id: chan.c,v 1.3 1999/07/27 18:30:53 mdw Exp $
+ * $Id: chan.c,v 1.5 2000/07/19 17:55:43 mdw Exp $
*
* Channel management
*
/*----- Revision history --------------------------------------------------*
*
* $Log: chan.c,v $
+ * Revision 1.5 2000/07/19 17:55:43 mdw
+ * (writechan): Pointless tweak: when the buffer is empty, reset the start
+ * pointer to the beginning. This saves doing slightly trickier
+ * @writev(2)@ calls when loading is light.
+ *
+ * Revision 1.4 1999/08/31 17:42:49 mdw
+ * Use `sel_force' to avoid a `select' call between reads and writes.
+ *
* Revision 1.3 1999/07/27 18:30:53 mdw
* Various minor portability fixes.
*
/* --- Close the output end if necessary --- */
- if (c->len == 0 && (c->f & CHANF_CLOSE))
- c->func(c->p);
+ if (c->len == 0) {
+ c->base = 0;
+ if (c->f & CHANF_CLOSE)
+ c->func(c->p);
+ }
return;
/* --- Force a close if an error occurred --- */
}
else if (r == 0)
goto close;
- else if (c->len == 0 && (c->f & CHANF_READY))
+ else if (c->len == 0 && (c->f & CHANF_READY)) {
sel_addfile(&c->w);
+ sel_force(&c->w);
+ }
c->len += r;
if (c->len == CHAN_BUFSZ)
sel_rmfile(&c->r);
close:
c->f |= CHANF_CLOSE;
- if (!c->len && (c->f & CHANF_READY))
+ if (!c->len && (c->f & CHANF_READY)) {
sel_addfile(&c->w);
+ sel_force(&c->w);
+ }
sel_rmfile(&c->r);
}
if (c->f & CHANF_READY)
return;
sel_initfile(sel, &c->w, fd, SEL_WRITE, writechan, c);
- if (c->len || (c->f & CHANF_CLOSE))
+ if (c->len || (c->f & CHANF_CLOSE)) {
sel_addfile(&c->w);
+ sel_force(&c->w);
+ }
c->f |= CHANF_READY;
}