void
io_dispatch_write_ssl(int fd, short event, void *humppa)
{
struct io *io = humppa;
int n, saved_errno;
size_t w2, w;
io_frame_enter("io_dispatch_write_ssl", io, event);
if (event == EV_TIMEOUT) {
io_callback(io, IO_TIMEOUT);
goto leave;
}
w = io_queued(io);
switch ((n = iobuf_write_ssl(io->iobuf, (SSL*)io->ssl))) {
case IOBUF_WANT_READ:
io_reset(io, EV_READ, io_dispatch_write_ssl);
break;
case IOBUF_WANT_WRITE:
io_reset(io, EV_WRITE, io_dispatch_write_ssl);
break;
case IOBUF_CLOSED:
io_callback(io, IO_DISCONNECTED);
break;
case IOBUF_ERROR:
saved_errno = errno;
io->error = strerror(errno);
errno = saved_errno;
io_callback(io, IO_ERROR);
break;
case IOBUF_SSLERROR:
io->error = io_ssl_error();
ssl_error("io_dispatch_write_ssl:SSL_write");
io_callback(io, IO_ERROR);
break;
default:
io_debug("io_dispatch_write_ssl(...) -> w=%d\n", n);
w2 = io_queued(io);
if (w > io->lowat && w2 <= io->lowat)
io_callback(io, IO_LOWAT);
break;
}
leave:
io_frame_leave(io);
}
void
io_dispatch(int fd, short ev, void *humppa)
{
struct io *io = humppa;
size_t w;
ssize_t n;
int saved_errno;
io_frame_enter("io_dispatch", io, ev);
if (ev == EV_TIMEOUT) {
io_callback(io, IO_TIMEOUT);
goto leave;
}
if (ev & EV_WRITE && (w = io_queued(io))) {
if ((n = iobuf_write(&io->iobuf, io->sock)) < 0) {
if (n == IOBUF_WANT_WRITE) /* kqueue bug? */
goto read;
if (n == IOBUF_CLOSED)
io_callback(io, IO_DISCONNECTED);
else {
saved_errno = errno;
io->error = strerror(errno);
errno = saved_errno;
io_callback(io, IO_ERROR);
}
goto leave;
}
if (w > io->lowat && w - n <= io->lowat)
io_callback(io, IO_LOWAT);
}
read:
if (ev & EV_READ) {
iobuf_normalize(&io->iobuf);
if ((n = iobuf_read(&io->iobuf, io->sock)) < 0) {
if (n == IOBUF_CLOSED)
io_callback(io, IO_DISCONNECTED);
else {
saved_errno = errno;
io->error = strerror(errno);
errno = saved_errno;
io_callback(io, IO_ERROR);
}
goto leave;
}
if (n)
io_callback(io, IO_DATAIN);
}
leave:
io_frame_leave(io);
}
const char*
io_strio(struct io *io)
{
static char buf[128];
char ssl[128];
ssl[0] = '\0';
#ifdef IO_SSL
if (io->ssl) {
(void)snprintf(ssl, sizeof ssl, " ssl=%s:%s:%d",
SSL_get_version(io->ssl),
SSL_get_cipher_name(io->ssl),
SSL_get_cipher_bits(io->ssl, NULL));
}
#endif
(void)snprintf(buf, sizeof buf,
"<io:%p fd=%d to=%d fl=%s%s ib=%zu ob=%zu>",
io, io->sock, io->timeout, io_strflags(io->flags), ssl,
io_pending(io), io_queued(io));
return (buf);
}