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libspl: move condvar implementation from libzpool

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Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17861
This commit is contained in:
Rob Norris
2025-10-27 10:17:08 +11:00
committed by Brian Behlendorf
parent a9f3733376
commit e7a856d954
3 changed files with 154 additions and 119 deletions
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lib/libzpool/kernel.c
-119
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@@ -194,125 +194,6 @@ zone_get_hostid(void *zonep)
return (hostid);
}
/*
* =========================================================================
* condition variables
* =========================================================================
*/
void
cv_init(kcondvar_t *cv, char *name, int type, void *arg)
{
(void) name, (void) type, (void) arg;
VERIFY0(pthread_cond_init(cv, NULL));
}
void
cv_destroy(kcondvar_t *cv)
{
VERIFY0(pthread_cond_destroy(cv));
}
void
cv_wait(kcondvar_t *cv, kmutex_t *mp)
{
memset(&mp->m_owner, 0, sizeof (pthread_t));
VERIFY0(pthread_cond_wait(cv, &mp->m_lock));
mp->m_owner = pthread_self();
}
int
cv_wait_sig(kcondvar_t *cv, kmutex_t *mp)
{
cv_wait(cv, mp);
return (1);
}
int
cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime)
{
int error;
struct timeval tv;
struct timespec ts;
clock_t delta;
delta = abstime - ddi_get_lbolt();
if (delta <= 0)
return (-1);
VERIFY0(gettimeofday(&tv, NULL));
ts.tv_sec = tv.tv_sec + delta / hz;
ts.tv_nsec = tv.tv_usec * NSEC_PER_USEC + (delta % hz) * (NANOSEC / hz);
if (ts.tv_nsec >= NANOSEC) {
ts.tv_sec++;
ts.tv_nsec -= NANOSEC;
}
memset(&mp->m_owner, 0, sizeof (pthread_t));
error = pthread_cond_timedwait(cv, &mp->m_lock, &ts);
mp->m_owner = pthread_self();
if (error == ETIMEDOUT)
return (-1);
VERIFY0(error);
return (1);
}
int
cv_timedwait_hires(kcondvar_t *cv, kmutex_t *mp, hrtime_t tim, hrtime_t res,
int flag)
{
(void) res;
int error;
struct timeval tv;
struct timespec ts;
hrtime_t delta;
ASSERT(flag == 0 || flag == CALLOUT_FLAG_ABSOLUTE);
delta = tim;
if (flag & CALLOUT_FLAG_ABSOLUTE)
delta -= gethrtime();
if (delta <= 0)
return (-1);
VERIFY0(gettimeofday(&tv, NULL));
ts.tv_sec = tv.tv_sec + delta / NANOSEC;
ts.tv_nsec = tv.tv_usec * NSEC_PER_USEC + (delta % NANOSEC);
if (ts.tv_nsec >= NANOSEC) {
ts.tv_sec++;
ts.tv_nsec -= NANOSEC;
}
memset(&mp->m_owner, 0, sizeof (pthread_t));
error = pthread_cond_timedwait(cv, &mp->m_lock, &ts);
mp->m_owner = pthread_self();
if (error == ETIMEDOUT)
return (-1);
VERIFY0(error);
return (1);
}
void
cv_signal(kcondvar_t *cv)
{
VERIFY0(pthread_cond_signal(cv));
}
void
cv_broadcast(kcondvar_t *cv)
{
VERIFY0(pthread_cond_broadcast(cv));
}
/*
* =========================================================================
* procfs list