--- /dev/null
+From 81fda54d4ada159c0427e6fc691b2926ae78bd3c Mon Sep 17 00:00:00 2001
+From: Taiki Endo <te316e89@gmail.com>
+Date: Fri, 18 Mar 2022 00:06:27 +0900
+Subject: [PATCH] channel: Do not call current_thread_id inside iteration
+
+---
+ crossbeam-channel/src/waker.rs | 46 +++++++++++++++++++---------------
+ 1 file changed, 26 insertions(+), 20 deletions(-)
+
+diff --git a/crossbeam-channel/src/waker.rs b/crossbeam-channel/src/waker.rs
+index dec73a96f..ee445ec8c 100644
+--- firefox-98.0/third_party/rust/crossbeam-channel/src/waker.rs.orig
++++ firefox-98.0/third_party/rust/crossbeam-channel/src/waker.rs
+@@ -77,26 +77,32 @@ impl Waker {
+ /// Attempts to find another thread's entry, select the operation, and wake it up.
+ #[inline]
+ pub(crate) fn try_select(&mut self) -> Option<Entry> {
+- self.selectors
+- .iter()
+- .position(|selector| {
+- // Does the entry belong to a different thread?
+- selector.cx.thread_id() != current_thread_id()
+- && selector // Try selecting this operation.
+- .cx
+- .try_select(Selected::Operation(selector.oper))
+- .is_ok()
+- && {
+- // Provide the packet.
+- selector.cx.store_packet(selector.packet);
+- // Wake the thread up.
+- selector.cx.unpark();
+- true
+- }
+- })
+- // Remove the entry from the queue to keep it clean and improve
+- // performance.
+- .map(|pos| self.selectors.remove(pos))
++ if self.selectors.is_empty() {
++ None
++ } else {
++ let thread_id = current_thread_id();
++
++ self.selectors
++ .iter()
++ .position(|selector| {
++ // Does the entry belong to a different thread?
++ selector.cx.thread_id() != thread_id
++ && selector // Try selecting this operation.
++ .cx
++ .try_select(Selected::Operation(selector.oper))
++ .is_ok()
++ && {
++ // Provide the packet.
++ selector.cx.store_packet(selector.packet);
++ // Wake the thread up.
++ selector.cx.unpark();
++ true
++ }
++ })
++ // Remove the entry from the queue to keep it clean and improve
++ // performance.
++ .map(|pos| self.selectors.remove(pos))
++ }
+ }
+
+ /// Returns `true` if there is an entry which can be selected by the current thread.
+--- firefox-98.0/third_party/rust/crossbeam-channel/.cargo-checksum.json.orig 2022-03-05 00:04:39.000000000 +0100
++++ firefox-98.0/third_party/rust/crossbeam-channel/.cargo-checksum.json 2022-03-19 10:56:44.195123311 +0100
+@@ -1 +1 @@
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+\ No newline at end of file
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projects / packages / firefox.git / blobdiff