nils/shairport-sync
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'development'

Browse Source 
Limit the maximum number of open file handles in Docker images.
Increase the level of optimisation (to -O3) while building the Shairport Sync application itself.
Enabled termination of a disconnected session in AirPlay 2 operation after a timeout, which was disabled by default.
Fixed a bug that prevented Shairport Sync from terminating cleanly when a fatal error that occurred while directly accessing the alsa output device.
Fixed a bug that prevented Shairport Sync from recovering cleanly if a player disconnected without warning. The problem was that the player thread would not respond to cancel request. Fixed by moving a pthreadtestcancel() call to the innermost loop.
Fixed compilation errors on old versions of Mac OS X by, reordering some of the files to be included in shairport.c.
Avoided using TCP_KEEPINTVL and TCP_KEEPCNT if they are not defined (they are not defined in older versions of Mac OS X).
Fixed a race condition with the metadata queues. The problem was that the queues were being initialised by threads launched by the main thread which, having started the threads, proceeded to use the queues. But if the threads were late in starting, the queues might not be initialised by the time the main thread tried to use them. Fixed by initialising the queues in the main thread.
Enable the ALSA backend to access mixers on a devices with a hdmi: prefix.
Update the help text for the ALSA backend to denote HDMI devices using the hdmi: prefix rather than hw:.
Manage thread cancellation state explicitly in audio_ao.c
CAR INSTALL guide: Simplify some of the wording. Change order and allow a few seconds before starting systemd-timesync service.
This commit is contained in:
Mike Brady
2024-07-06 11:46:14 +01:00
parent 28ae1dae85 8941caec78
commit 6ab794297b
12 changed files with 210 additions and 168 deletions
Download Patch File Download Diff File Expand all files Collapse all files
CAR INSTALL.md
+12 -7
View File
@@ -191,15 +191,16 @@ if test $MODE = RUN ; then
else
# If script execution gets in here, it starts services needed for normal operation.
/bin/systemctl start systemd-timesyncd || :
/bin/systemctl start dhcpcd || /bin/systemctl start NetworkManager || :
/bin/sleep 2 # may be necessary while the network becomes available
/bin/systemctl start systemd-timesyncd || :
fi
exit 0 # normal exit here
```
#### Disable Unused Services
#### Disable Unused Services - Optional
These optional steps have been tested on a Raspberry Pi only -- they have not been tested on other systems.
Some services are not necessary for this setup and can be disabled as follows:
```
@@ -207,11 +208,9 @@ Some services are not necessary for this setup and can be disabled as follows:
# systemctl disable triggerhappy
# systemctl disable dphys-swapfile
```
#### Optional: Read-only mode – Raspberry Pi Specific
This optional step is applicable to a Raspberry Pi only. Run `sudo raspi-config` and then choose `Performance Options` > `Overlay Filesystem` and choose to enable the overlay filesystem, and to set the boot partition to be write-protected. (The idea here is that this offers more protection against files being corrupted by the sudden removal of power.)
### Final Steps
#### Disable Unused Services - Mandatory
You now need to disable some services; that is, you need to stop them starting automatically on power-up. This is because they either interfere with the system's operation in WiFi Access Point mode, or because they won't work when the system isn't connected to the Internet. Only one of the `NetworkManager` and the `dhcpcd` service will be present in your system, but it's no harm to try to disable both.
```
# systemctl disable dhcpcd
@@ -219,12 +218,18 @@ You now need to disable some services; that is, you need to stop them starting a
# systemctl disable wpa_supplicant
# systemctl disable systemd-timesyncd
```
Lastly, note that the WiFi credentials you used initially to connect to your network (e.g. your home network) will have been stored in the system in plain text. This is convenient for when you want to reconnect to update (see later), but if you prefer to delete them, they will be in `/etc/wpa_supplicant/wpa_supplicant.conf`
Lastly, note that the WiFi credentials you used initially to connect to your network (e.g. your home network) will have been stored in the system in plain text. This is convenient for when you want to reconnect to update (see later), but if you prefer to delete them, they will be in `/etc/wpa_supplicant/wpa_supplicant.conf`.
#### Optional: Read-only mode – Raspberry Pi Specific
This optional step is applicable to a Raspberry Pi only. Run `sudo raspi-config` and then choose `Performance Options` > `Overlay Filesystem` and choose to enable the overlay filesystem, and to set the boot partition to be write-protected. (The idea here is that this offers more protection against files being corrupted by the sudden removal of power.)
### Final Step
When you are finished, carefully power down the machine before unplugging it from power:
```
# poweroff
```
Note: doing a `reboot` here doesn't seem to work properly -- it really does seem necessary to power off.
### Ready
Install the Raspberry Pi in your car. It should be powered from a source that is switched off when you leave the car, otherwise the slight current drain will eventually flatten the car's battery.
@@ -241,7 +246,7 @@ However, if you're *upgrading* the operating system to e.g. from Bullseye to Boo
If it's a Raspberry Pi and you have optionally enabled the read-only mode, you must take the device out of Read-only mode:
Run `sudo raspi-config` and then choose `Performance Options` > `Overlay Filesystem` and choose to disable the overlay filesystem and to set the boot partition not to be write-protected. This is so that changes can be written to the file system; you can make the filesystem read-only again later. Save the changes and reboot the system.
#### Undo Optimisations
If you have disabled any of the services listed in the [Disable Unused Services](#disable-unused-services) section, you should re-enable them. (But *do not* re-eneable `NetworkManager`, `dhcpcd`, `wpa_supplicant` or `systemd-timesyncd` -- they are handled specially by the startup script.)
If you have disabled any of the services listed in the [Disable Unused Services - Optional](#disable-unused-services---optional) section, you should re-enable them. (But *do not* re-eneable `NetworkManager`, `dhcpcd`, `wpa_supplicant` or `systemd-timesyncd` -- they are handled specially by the startup script.)
#### Perform Legacy Updates
Over time, the arrangements by which the system is prepared for operation has changed to make it easier to revert to normal operation when necessary for maintenance, updates, etc. A small number of the old settings need to be changed to bring them up to date with the present arrangements. Once the required changes have been made, your system will be ready for the update process detailed below. Here are those legacy changes you need to make, just once: