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| author | David van Moolenbroek <david@minix3.org> | 2015-07-18 09:52:27 +0200 |
|---|---|---|
| committer | David van Moolenbroek <david@minix3.org> | 2015-08-08 16:55:23 +0000 |
| commit | e10ce184e45094288ff2e324f9aaa968a798c3f6 (patch) | |
| tree | f5d01901ca777b86381794c1b8e399ae67b3051d /minix/kernel/system?id=e10ce184e45094288ff2e324f9aaa968a798c3f6 | |
| parent | 8731fd1c47ee8fde0d0a707438278d0f8088cee2 (diff) | |
libsys: make tickdelay(3) more reliable
Previously, there was a tiny chance that tickdelay(3) would return
early or that it would fail to reinstate a previous alarm.
- sys_setalarm(2) now returns TMR_NEVER instead of 0 for the time
left if no previous alarm was set;
- sys_setalarm(2) now also returns the current time, to allow the
caller to determine whether it got an alarm notification for the
alarm it set or for a previous alarm that has just gone off;
- tickdelay(3) now makes use of these facilities.
Change-Id: Id4f8fe19a61ca8574f43131964e6f0317f613f49
Diffstat (limited to 'minix/kernel/system?id=e10ce184e45094288ff2e324f9aaa968a798c3f6')
0 files changed, 0 insertions, 0 deletions