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Kernel: Implement the alarm() syscall.

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This commit is contained in:
Andreas Kling
2019-06-07 11:30:07 +02:00
parent a2a6bb93bc
commit d194ce828d
3 changed files with 19 additions and 4 deletions
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12
Kernel/Process.cpp
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@@ -1207,8 +1207,16 @@ int Process::sys$setgid(gid_t gid)
unsigned Process::sys$alarm(unsigned seconds)
{
(void) seconds;
ASSERT_NOT_REACHED();
unsigned previous_alarm_remaining = 0;
if (m_alarm_deadline && m_alarm_deadline > g_uptime) {
previous_alarm_remaining = (m_alarm_deadline - g_uptime) / TICKS_PER_SECOND;
}
if (!seconds) {
m_alarm_deadline = 0;
return previous_alarm_remaining;
}
m_alarm_deadline = g_uptime + seconds * TICKS_PER_SECOND;
return previous_alarm_remaining;
}
int Process::sys$uname(utsname* buf)