status_t
user_timer_get_clock(clockid_t clockID, bigtime_t& _time)
{
switch (clockID) {
case CLOCK_MONOTONIC:
_time = system_time();
return B_OK;
case CLOCK_REALTIME:
_time = real_time_clock_usecs();
return B_OK;
case CLOCK_THREAD_CPUTIME_ID:
{
Thread* thread = thread_get_current_thread();
InterruptsSpinLocker timeLocker(thread->time_lock);
_time = thread->CPUTime(false);
return B_OK;
}
case CLOCK_PROCESS_USER_CPUTIME_ID:
{
Team* team = thread_get_current_thread()->team;
InterruptsSpinLocker timeLocker(team->time_lock);
_time = team->UserCPUTime();
return B_OK;
}
case CLOCK_PROCESS_CPUTIME_ID:
default:
{
// get the ID of the target team (or the respective placeholder)
team_id teamID;
if (clockID == CLOCK_PROCESS_CPUTIME_ID) {
teamID = B_CURRENT_TEAM;
} else {
if (clockID < 0)
return B_BAD_VALUE;
if (clockID == team_get_kernel_team_id())
return B_NOT_ALLOWED;
teamID = clockID;
}
// get the team
Team* team = Team::Get(teamID);
if (team == NULL)
return B_BAD_VALUE;
BReference<Team> teamReference(team, true);
// get the time
InterruptsSpinLocker timeLocker(team->time_lock);
_time = team->CPUTime(false);
return B_OK;
}
}
}
status_t
_user_set_clock(clockid_t clockID, bigtime_t time)
{
switch (clockID) {
case CLOCK_MONOTONIC:
return B_BAD_VALUE;
case CLOCK_REALTIME:
// only root may set the time
if (geteuid() != 0)
return B_NOT_ALLOWED;
set_real_time_clock_usecs(time);
return B_OK;
case CLOCK_THREAD_CPUTIME_ID:
{
Thread* thread = thread_get_current_thread();
InterruptsSpinLocker timeLocker(thread->time_lock);
bigtime_t diff = time - thread->CPUTime(false);
thread->cpu_clock_offset += diff;
thread_clock_changed(thread, diff);
return B_OK;
}
case CLOCK_PROCESS_USER_CPUTIME_ID:
// not supported -- this clock is an Haiku-internal extension
return B_BAD_VALUE;
case CLOCK_PROCESS_CPUTIME_ID:
default:
{
// get the ID of the target team (or the respective placeholder)
team_id teamID;
if (clockID == CLOCK_PROCESS_CPUTIME_ID) {
teamID = B_CURRENT_TEAM;
} else {
if (clockID < 0)
return B_BAD_VALUE;
if (clockID == team_get_kernel_team_id())
return B_NOT_ALLOWED;
teamID = clockID;
}
// get the team
Team* team = Team::Get(teamID);
if (team == NULL)
return B_BAD_VALUE;
BReference<Team> teamReference(team, true);
// set the time offset
InterruptsSpinLocker timeLocker(team->time_lock);
bigtime_t diff = time - team->CPUTime(false);
team->cpu_clock_offset += diff;
team_clock_changed(team, diff);
return B_OK;
}
}
return B_OK;
}