input/{cdio,ffmpeg,file,smbclient}: unlock the mutex during blocking I/O

InputStream::Read() and InputStream::Seek() are called with the mutex locked. That means the implementation must not block, or unlock the mutex before calling into blocking code. Previously, a slow CD drive could stall the whole MPD process, including the main thread, due to this problem. Closes #149
2017-11-13 17:08:00 +01:00
parent f82e1453e4
commit 31ab78ae8e
5 changed files with 35 additions and 5 deletions
--- a/2
+++ b/2
@@ -1,5 +1,7 @@
 ver 0.20.12 (not yet released)
 * input
+  - cdio_paranoia, ffmpeg, file, smbclient: reduce lock contention,
+    fixing lots of xrun problems
  - curl: fix seeking
 * decoder
  - ffmpeg: fix GCC 8 warning