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@@ -5,12 +5,13 @@ import "core:c"
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import "core:c/libc"
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import "core:sys/haiku"
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import "core:sys/unix"
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+import "core:time"
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@(private="file")
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Wait_Node :: struct {
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thread: unix.pthread_t,
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futex: ^Futex,
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- prev, next: Wait_Node,
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+ prev, next: ^Wait_Node,
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}
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@(private="file")
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Wait_Queue :: struct {
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@@ -18,14 +19,14 @@ Wait_Queue :: struct {
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list: Wait_Node,
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}
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@(private="file")
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-waitq_lock :: proc(waitq: ^Wait_Queue) {
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- for libc.atomic_flag_test_and_set_explicit(&waitq.lock, .Acquire) {
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+waitq_lock :: proc "contextless" (waitq: ^Wait_Queue) {
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+ for libc.atomic_flag_test_and_set_explicit(&waitq.lock, .acquire) {
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; // spin...
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}
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}
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@(private="file")
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-waitq_unlock :: proc(waitq: ^Wait_Queue) {
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- libc.atomic_flag_clear(&waitq.lock, .Release)
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+waitq_unlock :: proc "contextless" (waitq: ^Wait_Queue) {
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+ libc.atomic_flag_clear_explicit(&waitq.lock, .release)
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}
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// FIXME: This approach may scale badly in the future,
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@@ -45,8 +46,8 @@ get_waitq :: #force_inline proc "contextless" (f: ^Futex) -> ^Wait_Queue {
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_futex_wait :: proc "contextless" (f: ^Futex, expect: u32) -> bool {
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waitq := get_waitq(f)
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- waitq_lock(&waitq)
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- defer waitq_unlock(&waitq)
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+ waitq_lock(waitq)
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+ defer waitq_unlock(waitq)
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head := &waitq.list
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waiter := Wait_Node{
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@@ -64,9 +65,9 @@ _futex_wait :: proc "contextless" (f: ^Futex, expect: u32) -> bool {
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haiku.sigaddset(&mask, haiku.SIGCONT)
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unix.pthread_sigmask(haiku.SIG_BLOCK, &mask, &old_mask)
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- if u32(atomic_load_explicit(f, .Acquire)) == expect {
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- waitq_unlock(&waitq)
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- defer waitq_lock(&waitq)
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+ if u32(atomic_load_explicit(f, .acquire)) == expect {
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+ waitq_unlock(waitq)
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+ defer waitq_lock(waitq)
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sig: c.int
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haiku.sigwait(&mask, &sig)
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@@ -89,8 +90,8 @@ _futex_wait_with_timeout :: proc "contextless" (f: ^Futex, expect: u32, duration
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_futex_signal :: proc "contextless" (f: ^Futex) {
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waitq := get_waitq(f)
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- waitq_lock(&waitq)
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- defer waitq_unlock(&waitq)
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+ waitq_lock(waitq)
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+ defer waitq_unlock(waitq)
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head := &waitq.list
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for waiter := head.next; waiter != head; waiter = waiter.next {
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@@ -103,8 +104,8 @@ _futex_signal :: proc "contextless" (f: ^Futex) {
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_futex_broadcast :: proc "contextless" (f: ^Futex) {
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waitq := get_waitq(f)
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- waitq_lock(&waitq)
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- defer waitq_unlock(&waitq)
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+ waitq_lock(waitq)
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+ defer waitq_unlock(waitq)
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head := &waitq.list
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for waiter := head.next; waiter != head; waiter = waiter.next {
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