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std: use futex-based locks on Fuchsia

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This commit is contained in:
joboet
2022-06-30 11:48:54 +02:00
parent 00ebeb87ac
commit f7ae92c6bd
5 changed files with 246 additions and 64 deletions
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25
library/std/src/sys/unix/futex.rs
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@@ -240,17 +240,22 @@ pub fn futex_wake_all(futex: &AtomicU32) {
}
#[cfg(target_os = "fuchsia")]
mod zircon {
type zx_time_t = i64;
type zx_futex_t = crate::sync::atomic::AtomicU32;
type zx_handle_t = u32;
type zx_status_t = i32;
pub mod zircon {
pub type zx_futex_t = crate::sync::atomic::AtomicU32;
pub type zx_handle_t = u32;
pub type zx_status_t = i32;
pub type zx_time_t = i64;
pub const ZX_HANDLE_INVALID: zx_handle_t = 0;
pub const ZX_ERR_TIMED_OUT: zx_status_t = -21;
pub const ZX_TIME_INFINITE: zx_time_t = zx_time_t::MAX;
pub const ZX_OK: zx_status_t = 0;
pub const ZX_ERR_BAD_STATE: zx_status_t = -20;
pub const ZX_ERR_TIMED_OUT: zx_status_t = -21;
extern "C" {
pub fn zx_clock_get_monotonic() -> zx_time_t;
pub fn zx_futex_wait(
value_ptr: *const zx_futex_t,
current_value: zx_futex_t,
@@ -258,7 +263,8 @@ mod zircon {
deadline: zx_time_t,
) -> zx_status_t;
pub fn zx_futex_wake(value_ptr: *const zx_futex_t, wake_count: u32) -> zx_status_t;
pub fn zx_clock_get_monotonic() -> zx_time_t;
pub fn zx_futex_wake_single_owner(value_ptr: *const zx_futex_t) -> zx_status_t;
pub fn zx_thread_self() -> zx_handle_t;
}
}
@@ -287,3 +293,8 @@ pub fn futex_wake(futex: &AtomicU32) -> bool {
unsafe { zircon::zx_futex_wake(futex, 1) };
false
}
#[cfg(target_os = "fuchsia")]
pub fn futex_wake_all(futex: &AtomicU32) {
unsafe { zircon::zx_futex_wake(futex, u32::MAX) };
}