rwlock.rs.html -- source
Description: Source to the Rust file `src\libstd\sys\windows\rwlock.rs`.
Keywords: rust, rustlang, rust-lang

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    use crate::cell::UnsafeCell;
    use crate::sys::c;

    pub struct RWLock { inner: UnsafeCell<c::SRWLOCK> }

    unsafe impl Send for RWLock {}
    unsafe impl Sync for RWLock {}

    impl RWLock {
        pub const fn new() -> RWLock {
            RWLock { inner: UnsafeCell::new(c::SRWLOCK_INIT) }
        }
        #[inline]
        pub unsafe fn read(&self) {
            c::AcquireSRWLockShared(self.inner.get())
        }
        #[inline]
        pub unsafe fn try_read(&self) -> bool {
            c::TryAcquireSRWLockShared(self.inner.get()) != 0
        }
        #[inline]
        pub unsafe fn write(&self) {
            c::AcquireSRWLockExclusive(self.inner.get())
        }
        #[inline]
        pub unsafe fn try_write(&self) -> bool {
            c::TryAcquireSRWLockExclusive(self.inner.get()) != 0
        }
        #[inline]
        pub unsafe fn read_unlock(&self) {
            c::ReleaseSRWLockShared(self.inner.get())
        }
        #[inline]
        pub unsafe fn write_unlock(&self) {
            c::ReleaseSRWLockExclusive(self.inner.get())
        }

        #[inline]
        pub unsafe fn destroy(&self) {
            // ...
        }
    }