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Use RtlWaitOnAddress to allow for a i64 sized duration rather than u32

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gingerBill
2022-05-17 22:24:18 +01:00
parent 33895b6d92
commit a86574da84
1 changed files with 9 additions and 9 deletions
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core/sync/futex_windows.odin
+9 -9
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@@ -5,28 +5,28 @@ package sync
import "core:time" import "core:time"
foreign import Synchronization "system:Synchronization.lib" foreign import Synchronization "system:Synchronization.lib"
@(default_calling_convention="stdcall") @(default_calling_convention="stdcall")
foreign Synchronization { foreign Synchronization {
WaitOnAddress :: proc(Address: rawptr, CompareAddress: rawptr, AddressSize: uint, Timeout: u32) -> b32 ---
WakeByAddressSingle :: proc(Address: rawptr) --- WakeByAddressSingle :: proc(Address: rawptr) ---
WakeByAddressAll :: proc(Address: rawptr) --- WakeByAddressAll :: proc(Address: rawptr) ---
} }
foreign import Ntdll "system:Ntdll.lib"
@(default_calling_convention="stdcall")
foreign Ntdll {
RtlWaitOnAddress :: proc(Address: rawptr, CompareAddress: rawptr, AddressSize: uint, Timeout: ^i64) -> i32 ---
}
_futex_wait :: proc(f: ^Futex, expect: u32) -> bool { _futex_wait :: proc(f: ^Futex, expect: u32) -> bool {
expect := expect expect := expect
return bool(WaitOnAddress(f, &expect, size_of(expect), ~u32(0))) return 0 == RtlWaitOnAddress(f, &expect, size_of(expect), nil)
} }
_futex_wait_with_timeout :: proc(f: ^Futex, expect: u32, duration: time.Duration) -> bool { _futex_wait_with_timeout :: proc(f: ^Futex, expect: u32, duration: time.Duration) -> bool {
expect := expect expect := expect
timeout := u32(0) // NOTE(bill): for some bizarre reason, this has be a negative number
if duration > 0 { timeout := -i64(duration / 100)
timeout = u32(duration/1e6) return 0 == RtlWaitOnAddress(f, &expect, size_of(expect), &timeout)
}
return bool(WaitOnAddress(f, &expect, size_of(expect), timeout))
} }
_futex_signal :: proc(f: ^Futex) { _futex_signal :: proc(f: ^Futex) {