void
sx_sysinit(void *arg)
{
struct sx_args *sargs = arg;
sx_init_flags(sargs->sa_sx, sargs->sa_desc, sargs->sa_flags);
}
void
rm_init_flags(struct rmlock *rm, const char *name, int opts)
{
struct lock_class *lc;
int liflags, xflags;
liflags = 0;
if (!(opts & RM_NOWITNESS))
liflags |= LO_WITNESS;
if (opts & RM_RECURSE)
liflags |= LO_RECURSABLE;
if (opts & RM_NEW)
liflags |= LO_NEW;
rm->rm_writecpus = all_cpus;
LIST_INIT(&rm->rm_activeReaders);
if (opts & RM_SLEEPABLE) {
liflags |= LO_SLEEPABLE;
lc = &lock_class_rm_sleepable;
xflags = (opts & RM_NEW ? SX_NEW : 0);
sx_init_flags(&rm->rm_lock_sx, "rmlock_sx",
xflags | SX_NOWITNESS);
} else {
lc = &lock_class_rm;
xflags = (opts & RM_NEW ? MTX_NEW : 0);
mtx_init(&rm->rm_lock_mtx, name, "rmlock_mtx",
xflags | MTX_NOWITNESS);
}
lock_init(&rm->lock_object, lc, name, NULL, liflags);
}
RTDECL(int) RTSemFastMutexCreate(PRTSEMFASTMUTEX phFastMtx)
{
AssertCompile(sizeof(RTSEMFASTMUTEXINTERNAL) > sizeof(void *));
AssertPtrReturn(phFastMtx, VERR_INVALID_POINTER);
PRTSEMFASTMUTEXINTERNAL pThis = (PRTSEMFASTMUTEXINTERNAL)RTMemAllocZ(sizeof(*pThis));
if (pThis)
{
pThis->u32Magic = RTSEMFASTMUTEX_MAGIC;
sx_init_flags(&pThis->SxLock, "IPRT Fast Mutex Semaphore", SX_DUPOK);
*phFastMtx = pThis;
return VINF_SUCCESS;
}
return VERR_NO_MEMORY;
}
static void
pmc_init_sx(void)
{
sx_init_flags(&pmc_sx, "pmc-sx", SX_NOWITNESS);
}
