From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Mike Hommey Date: Sat, 16 Oct 2021 01:19:56 +0000 Subject: [PATCH] Bug 1735905 - Upgrade cubeb-pulse to fix a race condition that can lead to shutdown deadlock. r=kinetik Differential Revision: https://phabricator.services.mozilla.com/D128657 --- .cargo/config.in | 2 +- Cargo.lock | 6 ++-- .../rust/cubeb-pulse/.cargo-checksum.json | 2 +- .../rust/cubeb-pulse/src/backend/stream.rs | 33 +++++++++++-------- toolkit/library/rust/shared/Cargo.toml | 2 +- 5 files changed, 25 insertions(+), 20 deletions(-) diff --git a/.cargo/config.in b/.cargo/config.in index dce119e25da1..6b9752c9fa1c 100644 --- a/.cargo/config.in +++ b/.cargo/config.in @@ -25,7 +25,7 @@ rev = "fd02134161505f978e132114cbabdac057ce3b71" [source."https://github.com/mozilla/cubeb-pulse-rs"] git = "https://github.com/mozilla/cubeb-pulse-rs" replace-with = "vendored-sources" -rev = "e9e55a4529642da99e64452467ecaef9f7753531" +rev = "9695281319fcb3e40db6a32cc0661548d6192f4d" [source."https://github.com/mozilla/cubeb-coreaudio-rs"] git = "https://github.com/mozilla/cubeb-coreaudio-rs" diff --git a/Cargo.lock b/Cargo.lock index ca2466600d4e..cc7a65e08715 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1059,7 +1059,7 @@ dependencies = [ [[package]] name = "cubeb-pulse" version = "0.3.0" -source = "git+https://github.com/mozilla/cubeb-pulse-rs?rev=e9e55a4529642da99e64452467ecaef9f7753531#e9e55a4529642da99e64452467ecaef9f7753531" +source = "git+https://github.com/mozilla/cubeb-pulse-rs?rev=9695281319fcb3e40db6a32cc0661548d6192f4d#9695281319fcb3e40db6a32cc0661548d6192f4d" dependencies = [ "cubeb-backend", "pulse", @@ -3935,16 +3935,16 @@ dependencies = [ [[package]] name = "pulse" version = "0.3.0" -source = "git+https://github.com/mozilla/cubeb-pulse-rs?rev=e9e55a4529642da99e64452467ecaef9f7753531#e9e55a4529642da99e64452467ecaef9f7753531" +source = "git+https://github.com/mozilla/cubeb-pulse-rs?rev=9695281319fcb3e40db6a32cc0661548d6192f4d#9695281319fcb3e40db6a32cc0661548d6192f4d" dependencies = [ "bitflags", "pulse-ffi", ] [[package]] name = "pulse-ffi" version = "0.1.0" -source = "git+https://github.com/mozilla/cubeb-pulse-rs?rev=e9e55a4529642da99e64452467ecaef9f7753531#e9e55a4529642da99e64452467ecaef9f7753531" +source = "git+https://github.com/mozilla/cubeb-pulse-rs?rev=9695281319fcb3e40db6a32cc0661548d6192f4d#9695281319fcb3e40db6a32cc0661548d6192f4d" dependencies = [ "libc", ] diff --git a/third_party/rust/cubeb-pulse/.cargo-checksum.json b/third_party/rust/cubeb-pulse/.cargo-checksum.json index 1dc452bcf480..45e913931336 100644 --- a/third_party/rust/cubeb-pulse/.cargo-checksum.json +++ b/third_party/rust/cubeb-pulse/.cargo-checksum.json @@ -1 +1 @@ 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\ No newline at end of file diff --git a/third_party/rust/cubeb-pulse/src/backend/stream.rs b/third_party/rust/cubeb-pulse/src/backend/stream.rs index 8168c813e243..df64b0f2304e 100644 --- a/third_party/rust/cubeb-pulse/src/backend/stream.rs +++ b/third_party/rust/cubeb-pulse/src/backend/stream.rs @@ -15,7 +15,7 @@ use ringbuf::RingBuffer; use std::ffi::{CStr, CString}; use std::os::raw::{c_long, c_void}; use std::slice; -use std::sync::atomic::{AtomicUsize, Ordering}; +use std::sync::atomic::{AtomicPtr, AtomicUsize, Ordering}; use std::{mem, ptr}; use self::LinearInputBuffer::*; @@ -272,7 +272,7 @@ pub struct PulseStream<'ctx> { input_stream: Option, data_callback: ffi::cubeb_data_callback, state_callback: ffi::cubeb_state_callback, - drain_timer: *mut pa_time_event, + drain_timer: AtomicPtr, output_sample_spec: pulse::SampleSpec, input_sample_spec: pulse::SampleSpec, // output frames count excluding pre-buffering @@ -411,7 +411,7 @@ impl<'ctx> PulseStream<'ctx> { data_callback, state_callback, user_ptr, - drain_timer: ptr::null_mut(), + drain_timer: AtomicPtr::new(ptr::null_mut()), output_sample_spec: pulse::SampleSpec::default(), input_sample_spec: pulse::SampleSpec::default(), output_frame_count: AtomicUsize::new(0), @@ -574,9 +574,10 @@ impl<'ctx> PulseStream<'ctx> { self.context.mainloop.lock(); { if let Some(stm) = self.output_stream.take() { - if !self.drain_timer.is_null() { + let drain_timer = self.drain_timer.load(Ordering::Acquire); + if !drain_timer.is_null() { /* there's no pa_rttime_free, so use this instead. */ - self.context.mainloop.get_api().time_free(self.drain_timer); + self.context.mainloop.get_api().time_free(drain_timer); } stm.clear_state_callback(); stm.clear_write_callback(); @@ -637,7 +638,7 @@ impl<'ctx> StreamOps for PulseStream<'ctx> { self.shutdown = true; // If draining is taking place wait to finish cubeb_log!("Stream stop: waiting for drain."); - while !self.drain_timer.is_null() { + while !self.drain_timer.load(Ordering::Acquire).is_null() { self.context.mainloop.wait(); } cubeb_log!("Stream stop: waited for drain."); @@ -988,11 +989,12 @@ impl<'ctx> PulseStream<'ctx> { ) { cubeb_logv!("Drain finished callback."); let stm = unsafe { &mut *(u as *mut PulseStream) }; - debug_assert_eq!(stm.drain_timer, e); + let drain_timer = stm.drain_timer.load(Ordering::Acquire); + debug_assert_eq!(drain_timer, e); stm.state_change_callback(ffi::CUBEB_STATE_DRAINED); /* there's no pa_rttime_free, so use this instead. */ - a.time_free(stm.drain_timer); - stm.drain_timer = ptr::null_mut(); + a.time_free(drain_timer); + stm.drain_timer.store(ptr::null_mut(), Ordering::Release); stm.context.mainloop.signal(); } @@ -1109,13 +1111,16 @@ impl<'ctx> PulseStream<'ctx> { /* pa_stream_drain is useless, see PA bug# 866. this is a workaround. */ /* arbitrary safety margin: double the current latency. */ - debug_assert!(self.drain_timer.is_null()); + debug_assert!(self.drain_timer.load(Ordering::Acquire).is_null()); let stream_ptr = self as *const _ as *mut _; if let Some(ref context) = self.context.context { - self.drain_timer = context.rttime_new( - pulse::rtclock_now() + 2 * latency, - drained_cb, - stream_ptr, + self.drain_timer.store( + context.rttime_new( + pulse::rtclock_now() + 2 * latency, + drained_cb, + stream_ptr, + ), + Ordering::Release, ); } self.shutdown = true; diff --git a/toolkit/library/rust/shared/Cargo.toml b/toolkit/library/rust/shared/Cargo.toml index b70f8974ffb1..7d1d601c0807 100644 --- a/toolkit/library/rust/shared/Cargo.toml +++ b/toolkit/library/rust/shared/Cargo.toml @@ -20,7 +20,7 @@ profiler_helper = { path = "../../../../tools/profiler/rust-helper", optional = mozurl = { path = "../../../../netwerk/base/mozurl" } webrender_bindings = { path = "../../../../gfx/webrender_bindings" } cubeb-coreaudio = { git = "https://github.com/mozilla/cubeb-coreaudio-rs", rev = "4ee3b283182926f9a8bb31d603219ff2db70d2fd", optional = true } -cubeb-pulse = { git = "https://github.com/mozilla/cubeb-pulse-rs", rev="e9e55a4529642da99e64452467ecaef9f7753531", optional = true, features=["pulse-dlopen"] } +cubeb-pulse = { git = "https://github.com/mozilla/cubeb-pulse-rs", rev="9695281319fcb3e40db6a32cc0661548d6192f4d", optional = true, features=["pulse-dlopen"] } cubeb-sys = { version = "0.9", optional = true, features=["gecko-in-tree"] } encoding_glue = { path = "../../../../intl/encoding_glue" } audioipc-client = { git = "https://github.com/mozilla/audioipc-2", rev = "8381f3812354d8d1df972c2c3ea596b70caa9a84", optional = true }