ehmry/genode
ehmry/genode
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

usb_drv: Add timeout support for events (ref #758)

Browse Source
This commit is contained in:
Sebastian Sumpf 2014-06-10 15:02:40 +02:00 committed by Norman Feske
parent 3961a3e2a1
commit cc8bf82300
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
repos/dde_linux/src/lib/usb/signal/event.cc
View File

@ -177,12 +177,16 @@ static void __wait_completion(struct completion *work)
static unsigned long static unsigned long
__wait_completion_timeout(struct completion *work, unsigned long timeout) __wait_completion_timeout(struct completion *work, unsigned long timeout)
{ {
unsigned long _j = jiffies + (timeout / HZ); unsigned long _j = jiffies + timeout;
while (!work->done) { while (!work->done) {
/* send signal */
Event_context::e()->submit();
__wait_event(); __wait_event();
if (_j >= jiffies) if (_j <= jiffies) {
dde_kit_log(1, "Timeout");
return 0; return 0;
}
} }
work->done = 0; work->done = 0;
@ -194,9 +198,8 @@ __wait_completion_timeout(struct completion *work, unsigned long timeout)
unsigned long wait_for_completion_timeout(struct completion *work, unsigned long wait_for_completion_timeout(struct completion *work,
unsigned long timeout) unsigned long timeout)
{ {
dde_kit_log(DEBUG_COMPLETION, "%p state: %u", work, work->done); dde_kit_log(DEBUG_COMPLETION, "%p state: %u timeout: %lu", work, work->done, timeout);
__wait_completion(work); return __wait_completion_timeout(work, timeout);
return 1;
} }