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State change events do not seem to be firing in Node.js #8
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Thanks a lot for the notice! Will try to fix it during the weekend... |
The issue seems to be in the jazz-midi module. I guess it will take some more time to fix... |
Do you have an ETA for the fix ? |
Sorry, have to be patient... |
Any update on this? |
thirtythreeforty
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Oct 10, 2023
The pthread and lock are never created if the "if" in the constructor fails, and the members are never initialized. But the destructor unconditionally destroys them. Fix this by adding a guard flag. This fixes a segfault I encountered on Arch with Pipewire as the ALSA server. Thread 1 "node" received signal SIGSEGV, Segmentation fault. 0x00007ffff428aebd in pthread_cancel () from /usr/bin/../lib/libc.so.6 (gdb) bt #0 0x00007ffff428aebd in pthread_cancel () from /usr/bin/../lib/libc.so.6 jazz-soft#1 0x00007ffff3b773ff in CMidiInHW::~CMidiInHW (this=0x55555572a430, __in_chrg=<optimized out>) at ../../midi/MidiALSA.cpp:366 jazz-soft#2 0x00007ffff3b77452 in CMidiInHW::~CMidiInHW (this=0x55555572a430, __in_chrg=<optimized out>) at ../../midi/MidiALSA.cpp:369 jazz-soft#3 0x00007ffff3b77105 in CMidiALSA::MidiInOpen[abi:cxx11](wchar_t const*, void*) (this=0x5555557b9880, name=0x5555556b3cf0 L"input", p=0x55555579e3a0) at ../../midi/MidiALSA.cpp:329 jazz-soft#4 0x00007ffff3b6f0c8 in MidiInOpen (env=0x55555579e410, args=0x7fffffff9e20) at ../jazz-midi.cpp:461 jazz-soft#5 0x00007ffff535bd33 in ?? () from /usr/bin/../lib/libnode.so.115 jazz-soft#6 0x00007ffff5840d97 in ?? () from /usr/bin/../lib/libnode.so.115 jazz-soft#7 0x00007ffff5841942 in v8::internal::Builtin_HandleApiCall(int, unsigned long*, v8::internal::Isolate*) () from /usr/bin/../lib/libnode.so.115 jazz-soft#8 0x00007ffff56cadf6 in ?? () from /usr/bin/../lib/libnode.so.115
I just tried it with |
Unfortunately I'm swamped with other stuff... |
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I am trying to detect when a device is being connected or disconnected but state change events do not seem to be firing. Here is a bit of code that demonstrates the problem:
If I run this code in Node.js, I do see "Enabled!" in the console. However, if I try to plug or unplug a device, nothing happens. I was expecting the
onstatechange
function to be triggered. Are my expectations wrong? Or perhaps there is something else at play?This is on macOS Monterey with Node v17.8.0
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