Mirrors_Framework/rtems
1
0
Fork 0
mirror of https://gitlab.rtems.org/rtems/rtos/rtems.git synced 2026-09-23 07:04:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

termios: Move wake up writer task action

Browse Source
This commit is contained in:
Sebastian Huber
2013-06-12 16:11:25 +02:00
parent 2a8713aa54
commit 58cde54dcb
1 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cpukit/libcsupport/src/termios.c
+8 -2
View File
@@ -1287,6 +1287,7 @@ rtems_termios_enqueue_raw_characters (void *ttyp, const char *buf, int len)
static int
rtems_termios_refill_transmitter (struct rtems_termios_tty *tty)
{
bool wakeUpWriterTask = false;
unsigned int newTail;
int nToSend;
rtems_interrupt_level level;
@@ -1330,7 +1331,7 @@ rtems_termios_refill_transmitter (struct rtems_termios_tty *tty)
/*
* this should never happen...
*/
rtems_semaphore_release (tty->rawOutBuf.Semaphore);
wakeUpWriterTask = true;
}
nToSend = 0;
@@ -1346,7 +1347,7 @@ rtems_termios_refill_transmitter (struct rtems_termios_tty *tty)
/*
* wake up any pending writer task
*/
rtems_semaphore_release (tty->rawOutBuf.Semaphore);
wakeUpWriterTask = true;
}
if (newTail == tty->rawOutBuf.Head) {
@@ -1393,6 +1394,11 @@ rtems_termios_refill_transmitter (struct rtems_termios_tty *tty)
}
tty->rawOutBuf.Tail = newTail; /*apm*/
}
if (wakeUpWriterTask) {
rtems_semaphore_release (tty->rawOutBuf.Semaphore);
}
return nToSend;
}