Changeset 87822ce in mainline for uspace/lib/c/include/io/console.h

Timestamp:

2021-03-04T19:14:30Z (4 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d6c4d40

Parents:

760a392

Message:

Avoid infinite loop when console communication is broken

Need to make sure callers of console_get_event_timeout() can distinguish
between timeout and I/O error. Fix all callers of console_get_event()
and console_get_event_timeout() not to enter infinite loop when console
connection is broken. Also avoid setting of errno variable.

File:

• uspace/lib/c/include/io/console.h (modified) (1 diff)

uspace/lib/c/include/io/console.h

@@ -84 +84 @@
 extern void console_cursor_visibility(console_ctrl_t *, bool);
 extern errno_t console_get_color_cap(console_ctrl_t *, sysarg_t *);
-extern bool console_get_event(console_ctrl_t *, cons_event_t *);
-extern bool console_get_event_timeout(console_ctrl_t *, cons_event_t *,
+extern errno_t console_get_event(console_ctrl_t *, cons_event_t *);
+extern errno_t console_get_event_timeout(console_ctrl_t *, cons_event_t *,
     usec_t *);
 extern errno_t console_map(console_ctrl_t *, sysarg_t, sysarg_t,