ai-index-select, ai-remove and ao-index-select, ao-remove not working properly

Quick assessment of the situation, then my complete session...

It seems that when there are multiple input objects of the same name or 
multiple output objects of the same name, 'ai-index-select', 'ai-remove' 
and 'ao-index-select', 'ao-remove' removes the wrong object.

It does (not) seem to have this confusion when the input objects have 
different names or the output objects have different names.

Also, it seems (possibly) that in certain situations, it seems to think 
it removed the object from a different chain instead of the chain that 
it actually removed it from.

Here's my session...

I have an ecs file that reads:

#### START ECS ####
# general
-b:512 -r:50 -z:nointbuf -z:nodb -n:"Main" -X -z:noxruns -z:nopsr 
-z:mixmode,sum

# audio inputs
-a:1 -f:24,1,96000 -i:1.wav
-a:2 -f:24,1,96000 -i:2.wav
-a:3 -f:24,1,96000 -i:3.wav

# audio outputs
-a:1 -f:24,2,96000 -o:jack,system
-a:2 -f:24,2,96000 -o:jack,system
-a:3 -f:24,2,96000 -o:jack,system

# chain operators and controllers
-a:1 -chcopy:1,2 -epp:13 -ea:155
-a:2 -chcopy:1,2 -epp:85 -ea:143
-a:3 -chcopy:1,2 -epp:50 -ea:24
#### END ECS ####

ecasound> c-select 2
ecasound> ai-status

### Audio input/output status (chainsetup 'Main') ###
Input (1): "1.wav," - [RIFF wave file]
  -> connected to chains "1": position (2.528/60.088) seconds.
  -> open, , s24_le/1ch/96000Hz, buffer 512.
Input (2): "2.wav," - [RIFF wave file]
  -> connected to chains "2": position (2.528/59.865) seconds.
  -> open, , s24_le/1ch/96000Hz, buffer 512.
Input (3): "3.wav," - [RIFF wave file]
  -> connected to chains "3": position (2.528/69.153) seconds.
  -> open, , s24_le/1ch/96000Hz, buffer 512.
Output (1): "jack,system," - [JACK interface]
  -> connected to chains "1": realtime-device; position 242688, delay 0.
  -> open, f32_le/2ch/96000Hz, buffer 512.
Output (2): "jack,system," - [JACK interface]
  -> connected to chains "2": realtime-device; position 242688, delay 0.
  -> open, f32_le/2ch/96000Hz, buffer 512.
Output (3): "jack,system," - [JACK interface]
  -> connected to chains "3": realtime-device; position 242688, delay 0.
  -> open, f32_le/2ch/96000Hz, buffer 512.

ecasound> ai-index-select 2
ecasound> ai-remove

(eca-control) WARNING: This operation requires that chainsetup is 
disconnected. Temporarily disconnecting...
- [ Controller/Processing stopped (cond) ] -------------------------------
(audioio_jack_manager) JACK transport: at ecasound stop JACK state is 
STOPPED (position 2.528sec)
- [ Engine exiting ] -----------------------------------------------------
(eca-control-objects) Disconnecting chainsetup:  "Main".
(eca-control-objects) Removing selected audio input "2.wav" from 
selected chains.
(eca-chainsetup) Unable to connect: Chain "2" is not valid. Following 
errors were detected:
(eca-chainsetup) Chain "2" is not connected to any input. All chains 
must have exactly one valid input. (2.1-NO-CHAIN-INPUT)
(eca-chainsetup) WARNING: Input "3.wav" is not connected to any chain. 
(3.1-DISCON-INPUT)
ERROR: Can't reconnect chainsetup.

As you'll see (below), it removed the correct input object (possibly 
because the names are all different?), but what about "WARNING: Input 
"3.wav" is not connected to any chain. (3.1-DISCON-INPUT)"?

ecasound> cs-save-as 1.ecs

1.ecs reads...

#### START ECS ####
# general
-b:512 -r:50 -z:nointbuf -z:nodb -n:"Main" -X -z:noxruns -z:nopsr 
-z:mixmode,sum

# audio inputs
-a:1 -f:s24_le,1,96000 -i:1.wav,
-a:3 -f:s24_le,1,96000 -i:3.wav,

# audio outputs
-a:1 -f:f32_le,2,96000 -o:jack,system,
-a:2 -f:f32_le,2,96000 -o:jack,system,
-a:3 -f:f32_le,2,96000 -o:jack,system,

# chain operators and controllers
-a:1 -chcopy:1.00,2.00 -epp:13.00 -ea:155.00
-a:2 -chcopy:1.00,2.00 -epp:85.00 -ea:143.00
-a:3 -chcopy:1.00,2.00 -epp:50.00 -ea:24.00
#### END ECS ####

ecasound> ai-status

### Audio input/output status (chainsetup 'Main') ###
Input (1): "1.wav," - [RIFF wave file]
  -> connected to chains "1": position (2.528/60.088) seconds.
  -> closed, audio format not available until object is opened.
Input (2): "3.wav," - [RIFF wave file]
  -> connected to chains "3": position (2.528/69.153) seconds.
  -> closed, audio format not available until object is opened.
Output (1): "jack,system," - [JACK interface]
  -> connected to chains "1": realtime-device; position 242688, delay 0.
  -> closed, f32_le/2ch/96000Hz, buffer 512.
Output (2): "jack,system," - [JACK interface]
  -> connected to chains "2": realtime-device; position 242688, delay 0.
  -> closed, f32_le/2ch/96000Hz, buffer 512.
Output (3): "jack,system," - [JACK interface]
  -> connected to chains "3": realtime-device; position 242688, delay 0.
  -> closed, f32_le/2ch/96000Hz, buffer 512.

ecasound> ao-index-select 2
ecasound> ao-remove

(eca-control-objects) Removing selected audio output "jack" from 
selected chains.

ecasound> c-selected
2

ecasound> cs-save-as 1.ecs

1.ecs reads...

#### START ECS ####
# general
-b:512 -r:50 -z:nointbuf -z:nodb -n:"Main" -X -z:noxruns -z:nopsr 
-z:mixmode,sum

# audio inputs
-a:1 -f:s24_le,1,96000 -i:1.wav,
-a:3 -f:s24_le,1,96000 -i:3.wav,

# audio outputs
-a:1 -f:f32_le,2,96000 -o:jack,system,
-a:2 -f:f32_le,2,96000 -o:jack,system,

# chain operators and controllers
-a:1 -chcopy:1.00,2.00 -epp:13.00 -ea:155.00
-a:2 -chcopy:1.00,2.00 -epp:85.00 -ea:143.00
-a:3 -chcopy:1.00,2.00 -epp:50.00 -ea:24.00
#### END ECS ####

It removed the audio output object on chain 3 instead of chain 2.

I did the exact same thing with alsa inputs and outputs and got exactly 
the same outcome.

Also, I noticed if I have this ecs file...

### START ECS ###
# general
-b:512 -r:50 -z:nointbuf -z:nodb -n:"Main" -X -z:noxruns -z:nopsr 
-z:mixmode,sum

# audio inputs
-a:1 -f:16,1,48000 -i:jack,system
-a:2 -f:16,2,48000 -i:jack,system
-a:3 -f:16,3,48000 -i:jack,system

# audio outputs
-a:1 -f:16,2,48000 -o:jack,system
-a:2 -f:16,2,48000 -o:jack,system
-a:3 -f:16,2,48000 -o:jack,system

# chain operators and controllers
-a:1 -chcopy:1,2 -epp:13 -ea:155
-a:2 -chmove:2,1 -chcopy:1,2 -epp:85 -ea:143
-a:3 -chmove:3,1 -chcopy:1,2 -epp:50 -ea:24
### END ECS ###

ecasound> ai-status

### Audio input/output status (chainsetup 'Main') ###
Input (1): "jack,system," - [JACK interface]
  -> connected to chains "1": realtime-device; position 0, delay 0.
  -> closed, s16_le/1ch/48000Hz, buffer 512.
Input (2): "jack,system," - [JACK interface]
  -> connected to chains "2": realtime-device; position 0, delay 0.
  -> closed, s16_le/2ch/48000Hz, buffer 512.
Input (3): "jack,system," - [JACK interface]
  -> connected to chains "3": realtime-device; position 0, delay 0.
  -> closed, s16_le/3ch/48000Hz, buffer 512.
Output (1): "jack,system," - [JACK interface]
  -> connected to chains "1": realtime-device; position 0, delay 0.
  -> closed, s16_le/2ch/48000Hz, buffer 512.
Output (2): "jack,system," - [JACK interface]
  -> connected to chains "2": realtime-device; position 0, delay 0.
  -> closed, s16_le/2ch/48000Hz, buffer 512.
Output (3): "jack,system," - [JACK interface]
  -> connected to chains "3": realtime-device; position 0, delay 0.
  -> closed, s16_le/2ch/48000Hz, buffer 512.

ecasound> ai-index-select 2
ecasound> ai-remove
ecasound> ao-index-select 2
ecasound> ao-remove
ecasound> c-select 3
ecasound> c-clear
ecasound> cs-save-as 1.ecs

1.ecs reads...

### START ECS ###
# general
-b:512 -r:50 -z:nointbuf -z:nodb -n:"Main" -X -z:noxruns -z:nopsr 
-z:mixmode,sum

# audio inputs
-a:1 -f:s16_le,1,48000 -i:jack,system,
-a:2 -f:s16_le,2,48000 -i:jack,system,

# audio outputs
-a:1 -f:s16_le,2,48000 -o:jack,system,
-a:2 -f:s16_le,2,48000 -o:jack,system,

# chain operators and controllers
-a:1 -chcopy:1.00,2.00 -epp:13.00 -ea:155.00
-a:2 -chmove:2.00,1.00 -chcopy:1.00,2.00 -epp:85.00 -ea:143.00
### END ECS ###

Even though it improperly removed the input and output objects (and 
chain) for chain 3 instead of 2, I cleared the last remains of chain 3 
(c-clear) and it should run... but...

ecasound> t

(eca-chainsetup) Unable to connect: Chain "3" is not valid. Following 
errors were detected:
(eca-chainsetup) Chain "3" is not connected to any input. All chains 
must have exactly one valid input. (2.1-NO-CHAIN-INPUT)
(eca-chainsetup) Chain "3" is not connected to any output. All chains 
must have exactly one valid output. (2.2-NO-CHAIN-OUTPUT)
ERROR:  Selected chainsetup cannot be connected. Can't perform requested 
action.

ecasound> c-list
1,2,3

Also... when there are input objects that that have the same name mixed 
with input objects that have different names, you get the wrong input 
objects being removed in a more random way. This happens for output 
objects that also have similar names mixed with different names.

Unfortunately, this has halted my new approach of deleting tracks or 
effects in a more robust way in my front end. I could just stick with 
adding a whole chainsetup each time I delete a track (chain) or effect 
(chain), but it's not as robust as doing it chain by chain.

Thanks,
Rocco

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