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//+private
package sync
import "core:time"
_Sema :: struct {
atomic: Atomic_Sema,
}
_sema_post :: proc "contextless" (s: ^Sema, count := 1) {
atomic_sema_post(&s.impl.atomic, count)
}
_sema_wait :: proc "contextless" (s: ^Sema) {
atomic_sema_wait(&s.impl.atomic)
}
_sema_wait_with_timeout :: proc "contextless" (s: ^Sema, duration: time.Duration) -> bool {
return atomic_sema_wait_with_timeout(&s.impl.atomic, duration)
}
_Recursive_Mutex :: struct {
owner: Futex,
recursion: i32,
}
_recursive_mutex_lock :: proc "contextless" (m: ^Recursive_Mutex) {
tid := Futex(current_thread_id())
for {
prev_owner := atomic_compare_exchange_strong_explicit(&m.impl.owner, 0, tid, .Acquire, .Acquire)
switch prev_owner {
case 0, tid:
m.impl.recursion += 1
// inside the lock
return
}
futex_wait(&m.impl.owner, u32(prev_owner))
}
}
_recursive_mutex_unlock :: proc "contextless" (m: ^Recursive_Mutex) {
m.impl.recursion -= 1
if m.impl.recursion != 0 {
return
}
atomic_exchange_explicit(&m.impl.owner, 0, .Release)
futex_signal(&m.impl.owner)
// outside the lock
}
_recursive_mutex_try_lock :: proc "contextless" (m: ^Recursive_Mutex) -> bool {
tid := Futex(current_thread_id())
prev_owner := atomic_compare_exchange_strong_explicit(&m.impl.owner, 0, tid, .Acquire, .Acquire)
switch prev_owner {
case 0, tid:
m.impl.recursion += 1
// inside the lock
return true
}
return false
}
when ODIN_OS != .Windows {
_Mutex :: struct {
mutex: Atomic_Mutex,
}
_mutex_lock :: proc "contextless" (m: ^Mutex) {
atomic_mutex_lock(&m.impl.mutex)
}
_mutex_unlock :: proc "contextless" (m: ^Mutex) {
atomic_mutex_unlock(&m.impl.mutex)
}
_mutex_try_lock :: proc "contextless" (m: ^Mutex) -> bool {
return atomic_mutex_try_lock(&m.impl.mutex)
}
_Cond :: struct {
cond: Atomic_Cond,
}
_cond_wait :: proc "contextless" (c: ^Cond, m: ^Mutex) {
atomic_cond_wait(&c.impl.cond, &m.impl.mutex)
}
_cond_wait_with_timeout :: proc "contextless" (c: ^Cond, m: ^Mutex, duration: time.Duration) -> bool {
return atomic_cond_wait_with_timeout(&c.impl.cond, &m.impl.mutex, duration)
}
_cond_signal :: proc "contextless" (c: ^Cond) {
atomic_cond_signal(&c.impl.cond)
}
_cond_broadcast :: proc "contextless" (c: ^Cond) {
atomic_cond_broadcast(&c.impl.cond)
}
_RW_Mutex :: struct {
mutex: Atomic_RW_Mutex,
}
_rw_mutex_lock :: proc "contextless" (rw: ^RW_Mutex) {
atomic_rw_mutex_lock(&rw.impl.mutex)
}
_rw_mutex_unlock :: proc "contextless" (rw: ^RW_Mutex) {
atomic_rw_mutex_unlock(&rw.impl.mutex)
}
_rw_mutex_try_lock :: proc "contextless" (rw: ^RW_Mutex) -> bool {
return atomic_rw_mutex_try_lock(&rw.impl.mutex)
}
_rw_mutex_shared_lock :: proc "contextless" (rw: ^RW_Mutex) {
atomic_rw_mutex_shared_lock(&rw.impl.mutex)
}
_rw_mutex_shared_unlock :: proc "contextless" (rw: ^RW_Mutex) {
atomic_rw_mutex_shared_unlock(&rw.impl.mutex)
}
_rw_mutex_try_shared_lock :: proc "contextless" (rw: ^RW_Mutex) -> bool {
return atomic_rw_mutex_try_shared_lock(&rw.impl.mutex)
}
}
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