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authorLukas Larsson <[email protected]>2014-03-12 15:58:03 +0100
committerLukas Larsson <[email protected]>2014-03-23 22:16:18 +0100
commitebad8e4c3a26e5ed3813ede2ca539123a1d31812 (patch)
tree042b78a672e63677efc6a62d3230aa225610b156 /erts/emulator/sys/ose
parent483161dd3e05d5d4285bae90ac625e761c7b8214 (diff)
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ose: Reset busy port when pdq empty
Diffstat (limited to 'erts/emulator/sys/ose')
-rw-r--r--erts/emulator/sys/ose/sys.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c
index e3041ff1ca..6e6303820c 100644
--- a/erts/emulator/sys/ose/sys.c
+++ b/erts/emulator/sys/ose/sys.c
@@ -1394,16 +1394,15 @@ static void ready_output(ErlDrvData drv_data, ErlDrvEvent ready_fd)
driver_failure_posix(data->port_num, status);
}
else { /* written bytes > 0 */
- iov = driver_peekq(data->port_num, &vlen);
- if (vlen > 0) {
- DISPATCH_AIO(sig);
- FREE_AIO(sig->fm_write_reply.buffer);
- res = driver_deq(data->port_num, iov[0].iov_len);
- if (res > 0) {
- iov = driver_peekq(data->port_num, &vlen);
- WRITE_AIO(data->ofd, iov[0].iov_len, iov[0].iov_base);
- }
- }
+ DISPATCH_AIO(sig);
+ res = driver_deq(data->port_num, sig->fm_write_reply.actual);
+ FREE_AIO(sig->fm_write_reply.buffer);
+ if (res == 0)
+ set_busy_port(data->port_num, 0);
+ else {
+ iov = driver_peekq(data->port_num, &vlen);
+ WRITE_AIO(data->ofd, iov[0].iov_len, iov[0].iov_base);
+ }
}
sig = erl_drv_ose_get_signal(ready_fd);
}