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Revert "Reimplement RwMutex on non-windows systems"

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This reverts commit e9d20a9b4a.
This commit is contained in:
Lucas Perlind
2025-09-24 12:40:01 +10:00
parent e9d20a9b4a
commit eca2758d8b
1 changed files with 8 additions and 24 deletions
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32
src/threading.cpp
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@@ -423,44 +423,28 @@ gb_internal void semaphore_wait(Semaphore *s) {
}
struct RwMutex {
BlockingMutex lock;
Condition cond;
int32_t readers;
// TODO(bill): make this a proper RW mutex
BlockingMutex mutex;
};
gb_internal void rw_mutex_lock(RwMutex *m) {
mutex_lock(&m->lock);
while (m->readers != 0) {
condition_wait(&m->cond, &m->lock);
}
mutex_lock(&m->mutex);
}
gb_internal bool rw_mutex_try_lock(RwMutex *m) {
// TODO(bill): rw_mutex_try_lock
rw_mutex_lock(m);
return true;
return mutex_try_lock(&m->mutex);
}
gb_internal void rw_mutex_unlock(RwMutex *m) {
condition_signal(&m->cond);
mutex_unlock(&m->lock);
mutex_unlock(&m->mutex);
}
gb_internal void rw_mutex_shared_lock(RwMutex *m) {
mutex_lock(&m->lock);
m->readers += 1;
mutex_unlock(&m->lock);
mutex_lock(&m->mutex);
}
gb_internal bool rw_mutex_try_shared_lock(RwMutex *m) {
// TODO(bill): rw_mutex_try_shared_lock
rw_mutex_shared_lock(m);
return true;
return mutex_try_lock(&m->mutex);
}
gb_internal void rw_mutex_shared_unlock(RwMutex *m) {
mutex_lock(&m->lock);
m->readers -= 1;
if (m->readers == 0) {
condition_signal(&m->cond);
}
mutex_unlock(&m->lock);
mutex_unlock(&m->mutex);
}
#endif