summaryrefslogtreecommitdiffstats
path: root/js/src/builtin/AtomicsObject.cpp
diff options
context:
space:
mode:
authorwolfbeast <mcwerewolf@wolfbeast.com>2019-06-12 03:36:54 +0200
committerwolfbeast <mcwerewolf@wolfbeast.com>2019-06-12 03:38:40 +0200
commit284b4cffd7a7ccc311b64744d46b29e219eb132a (patch)
tree3cecbed282fa484fa17ede00e32df0f24bb80e2a /js/src/builtin/AtomicsObject.cpp
parent19c0f5e9ff625c6a67e5e0a08f0a800782168492 (diff)
downloadUXP-284b4cffd7a7ccc311b64744d46b29e219eb132a.tar
UXP-284b4cffd7a7ccc311b64744d46b29e219eb132a.tar.gz
UXP-284b4cffd7a7ccc311b64744d46b29e219eb132a.tar.lz
UXP-284b4cffd7a7ccc311b64744d46b29e219eb132a.tar.xz
UXP-284b4cffd7a7ccc311b64744d46b29e219eb132a.zip
Add Atomics.notify instead of Atomics.wake according to revised spec.
- Keep .wake as an alias until we're certain it can be removed. - Enable SAB memory
Diffstat (limited to 'js/src/builtin/AtomicsObject.cpp')
-rw-r--r--js/src/builtin/AtomicsObject.cpp23
1 files changed, 12 insertions, 11 deletions
diff --git a/js/src/builtin/AtomicsObject.cpp b/js/src/builtin/AtomicsObject.cpp
index 2551f3b7d..3de3f5f4c 100644
--- a/js/src/builtin/AtomicsObject.cpp
+++ b/js/src/builtin/AtomicsObject.cpp
@@ -834,7 +834,7 @@ js::atomics_wait(JSContext* cx, unsigned argc, Value* vp)
}
bool
-js::atomics_wake(JSContext* cx, unsigned argc, Value* vp)
+js::atomics_notify(JSContext* cx, unsigned argc, Value* vp)
{
CallArgs args = CallArgsFromVp(argc, vp);
HandleValue objv = args.get(0);
@@ -874,7 +874,7 @@ js::atomics_wake(JSContext* cx, unsigned argc, Value* vp)
iter = iter->lower_pri;
if (c->offset != offset || !c->rt->fx.isWaiting())
continue;
- c->rt->fx.wake(FutexRuntime::WakeExplicit);
+ c->rt->fx.notify(FutexRuntime::NotifyExplicit);
++woken;
--count;
} while (count > 0 && iter != waiters);
@@ -950,7 +950,7 @@ js::FutexRuntime::isWaiting()
// When a worker is awoken for an interrupt it goes into state
// WaitingNotifiedForInterrupt for a short time before it actually
// wakes up and goes into WaitingInterrupted. In those states the
- // worker is still waiting, and if an explicit wake arrives the
+ // worker is still waiting, and if an explicit notify arrives the
// worker transitions to Woken. See further comments in
// FutexRuntime::wait().
return state_ == Waiting || state_ == WaitingInterrupted || state_ == WaitingNotifiedForInterrupt;
@@ -1029,14 +1029,14 @@ js::FutexRuntime::wait(JSContext* cx, js::UniqueLock<js::Mutex>& locked,
// should be woken when the interrupt handler returns.
// To that end, we flag the thread as interrupted around
// the interrupt and check state_ when the interrupt
- // handler returns. A wake() call that reaches the
+ // handler returns. A notify() call that reaches the
// runtime during the interrupt sets state_ to Woken.
//
// - It is in principle possible for wait() to be
// reentered on the same thread/runtime and waiting on the
// same location and to yet again be interrupted and enter
// the interrupt handler. In this case, it is important
- // that when another agent wakes waiters, all waiters using
+ // that when another agent notifies waiters, all waiters using
// the same runtime on the same location are woken in LIFO
// order; FIFO may be the required order, but FIFO would
// fail to wake up the innermost call. Interrupts are
@@ -1073,25 +1073,25 @@ finished:
}
void
-js::FutexRuntime::wake(WakeReason reason)
+js::FutexRuntime::notify(NotifyReason reason)
{
MOZ_ASSERT(isWaiting());
- if ((state_ == WaitingInterrupted || state_ == WaitingNotifiedForInterrupt) && reason == WakeExplicit) {
+ if ((state_ == WaitingInterrupted || state_ == WaitingNotifiedForInterrupt) && reason == NotifyExplicit) {
state_ = Woken;
return;
}
switch (reason) {
- case WakeExplicit:
+ case NotifyExplicit:
state_ = Woken;
break;
- case WakeForJSInterrupt:
+ case NotifyForJSInterrupt:
if (state_ == WaitingNotifiedForInterrupt)
return;
state_ = WaitingNotifiedForInterrupt;
break;
default:
- MOZ_CRASH("bad WakeReason in FutexRuntime::wake()");
+ MOZ_CRASH("bad NotifyReason in FutexRuntime::notify()");
}
cond_->notify_all();
}
@@ -1108,7 +1108,8 @@ const JSFunctionSpec AtomicsMethods[] = {
JS_INLINABLE_FN("xor", atomics_xor, 3,0, AtomicsXor),
JS_INLINABLE_FN("isLockFree", atomics_isLockFree, 1,0, AtomicsIsLockFree),
JS_FN("wait", atomics_wait, 4,0),
- JS_FN("wake", atomics_wake, 3,0),
+ JS_FN("notify", atomics_notify, 3,0),
+ JS_FN("wake", atomics_notify, 3,0), //Legacy name
JS_FS_END
};