sneedmca/Lime3DS
1
0
Fork 0
mirror of https://github.com/Lime3DS/Lime3DS synced 2024-12-26 17:12:37 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge pull request #4168 from MerryMage/cubeb-lock

Browse source 
cubeb_sink: Protect queue against multithreaded access
This commit is contained in:
Merry 2018-09-02 09:49:12 +01:00 committed by GitHub
commit f03cc09998
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
src/audio_core/cubeb_sink.cpp
View file

@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <mutex>
#include <vector>
#include <cubeb/cubeb.h>
#include "audio_core/audio_types.h"
@ -17,6 +18,7 @@ struct CubebSink::Impl {
cubeb* ctx = nullptr;
cubeb_stream* stream = nullptr;
std::mutex queue_mutex;
std::vector<s16> queue;
static long DataCallback(cubeb_stream* stream, void* user_data, const void* input_buffer,
@ -97,6 +99,8 @@ void CubebSink::EnqueueSamples(const s16* samples, size_t sample_count) {
if (!impl->ctx)
return;
std::lock_guard lock{impl->queue_mutex};
impl->queue.reserve(impl->queue.size() + sample_count * 2);
std::copy(samples, samples + sample_count * 2, std::back_inserter(impl->queue));
}
@ -105,6 +109,7 @@ size_t CubebSink::SamplesInQueue() const {
if (!impl->ctx)
return 0;
std::lock_guard lock{impl->queue_mutex};
return impl->queue.size() / 2;
}
@ -116,6 +121,8 @@ long CubebSink::Impl::DataCallback(cubeb_stream* stream, void* user_data, const
if (!impl)
return 0;
std::lock_guard lock{impl->queue_mutex};
size_t frames_to_write = std::min(impl->queue.size() / 2, static_cast<size_t>(num_frames));
memcpy(buffer, impl->queue.data(), frames_to_write * sizeof(s16) * 2);