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Diffstat (limited to 'erts/emulator/drivers/win32/ttsl_drv.c')
-rw-r--r--erts/emulator/drivers/win32/ttsl_drv.c39
1 files changed, 28 insertions, 11 deletions
diff --git a/erts/emulator/drivers/win32/ttsl_drv.c b/erts/emulator/drivers/win32/ttsl_drv.c
index 502cb58dfa..99e7fb25a4 100644
--- a/erts/emulator/drivers/win32/ttsl_drv.c
+++ b/erts/emulator/drivers/win32/ttsl_drv.c
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2016. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -46,6 +47,7 @@ static int rows; /* Number of rows available. */
#define OP_INSC 2
#define OP_DELC 3
#define OP_BEEP 4
+#define OP_PUTC_SYNC 5
/* Control op */
#define CTRL_OP_GET_WINSIZE 100
@@ -458,6 +460,7 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
switch (buf[0]) {
case OP_PUTC:
+ case OP_PUTC_SYNC:
DEBUGLOG(("OP: Putc(%I64u)",(unsigned long long)count-1));
if (check_buf_size((byte*)buf+1, count-1) == 0)
return;
@@ -481,6 +484,20 @@ static void ttysl_from_erlang(ErlDrvData ttysl_data, char* buf, ErlDrvSizeT coun
/* Unknown op, just ignore. */
break;
}
+
+ if (buf[0] == OP_PUTC_SYNC) {
+ /* On windows we do a blocking write to the tty so we just
+ send the ack immidiately. If at some point in the future
+ someone has a problem with tty output being blocking
+ this has to be changed. */
+ ErlDrvTermData spec[] = {
+ ERL_DRV_PORT, driver_mk_port(ttysl_port),
+ ERL_DRV_ATOM, driver_mk_atom("ok"),
+ ERL_DRV_TUPLE, 2
+ };
+ erl_drv_output_term(driver_mk_port(ttysl_port), spec,
+ sizeof(spec) / sizeof(spec[0]));
+ }
return;
}