New redesign of core:sync (stored under core:sync/sync2 for the time being)

core/sync/sync2/primitives_windows.odin

@@ -0,0 +1,73 @@
+//+build windows
+//+private
+package sync2
+
+import "core:time"
+import win32 "core:sys/windows"
+
+_Mutex :: struct {
+	srwlock: win32.SRWLOCK,
+}
+
+_mutex_lock :: proc(m: ^Mutex) {
+	win32.AcquireSRWLockExclusive(&m.impl.srwlock);
+}
+
+_mutex_unlock :: proc(m: ^Mutex) {
+	win32.ReleaseSRWLockExclusive(&m.impl.srwlock);
+}
+
+_mutex_try_lock :: proc(m: ^Mutex) -> bool {
+	return bool(win32.TryAcquireSRWLockExclusive(&m.impl.srwlock));
+}
+
+_RW_Mutex :: struct {
+	srwlock: win32.SRWLOCK,
+}
+
+_rw_mutex_lock :: proc(rw: ^RW_Mutex) {
+	win32.AcquireSRWLockExclusive(&rw.impl.srwlock);
+}
+
+_rw_mutex_unlock :: proc(rw: ^RW_Mutex) {
+	win32.ReleaseSRWLockExclusive(&rw.impl.srwlock);
+}
+
+_rw_mutex_try_lock :: proc(rw: ^RW_Mutex) -> bool {
+	return bool(win32.TryAcquireSRWLockExclusive(&rw.impl.srwlock));
+}
+
+_rw_mutex_shared_lock :: proc(rw: ^RW_Mutex) {
+	win32.AcquireSRWLockShared(&rw.impl.srwlock);
+}
+
+_rw_mutex_shared_unlock :: proc(rw: ^RW_Mutex) {
+	win32.ReleaseSRWLockShared(&rw.impl.srwlock);
+}
+
+_rw_mutex_try_shared_lock :: proc(rw: ^RW_Mutex) -> bool {
+	return bool(win32.TryAcquireSRWLockShared(&rw.impl.srwlock));
+}
+
+
+
+_Cond :: struct {
+	cond: win32.CONDITION_VARIABLE,
+}
+
+_cond_wait :: proc(c: ^Cond, m: ^Mutex) {
+	_ = win32.SleepConditionVariableSRW(&c.impl.cond, &m.impl.srwlock, win32.INFINITE, 0);
+}
+
+_cond_wait_with_timeout :: proc(c: ^Cond, m: ^Mutex, timeout: time.Duration) -> bool {
+	ms := win32.DWORD((max(time.duration_nanoseconds(timeout), 0) + 999999)/1000000);
+	return cast(bool)win32.SleepConditionVariableSRW(&c.impl.cond, &m.impl.srwlock, ms, 0);
+}
+
+_cond_signal :: proc(c: ^Cond) {
+	win32.WakeConditionVariable(&c.impl.cond);
+}
+
+_cond_broadcast :: proc(c: ^Cond) {
+	win32.WakeAllConditionVariable(&c.impl.cond);
+}