Changeset 87822ce in mainline for uspace/app/trace/trace.c

Timestamp:

2021-03-04T19:14:30Z (3 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/app/trace/trace.c (modified) (2 diffs)

uspace/app/trace/trace.c

@@ -511 +511 @@
 {
         cons_event_t event;
+        errno_t rc;
 
         (void) arg;
@@ -522 +523 @@
                 fibril_mutex_unlock(&state_lock);
 
-                if (!console_get_event(console, &event))
+                rc = console_get_event(console, &event);
+                if (rc != EOK)
                         return EINVAL;