multiple routing with 3.4.9

[ignaziotrama]

Hi ,
we are using version 3.4.9 and we need to create multiple vsomeip applications (one json configuration file per application) within a single executable.
I came accross this thread 556 and modified my configurations to match what suggested in there.
So I do :

1. ENABLE_MULTIPLE_ROUTING_MANAGERS=ON
2. Define two configuration files as follows:

"unicast": "192.168.xxx.xx",
    "network": "SOME_IP_PIU_MST",
    "netmask": "255.255.255.0",
    "logging": {
        "level": "debug",
        "console": "true",
        "file": {
            "enable": "false",
            "path": "/tmp/vsomeip.log"
        },
        "dlt": "false"
    },
    "applications": [
        {
            "name": "PIU_MST",
            "id": "0x3200"
        },
        {
            "name": "RADAR",
            "id": "0x320A"
        }
    ],
        "routing": "PIU_MST",
    "routing-name": "SOME_IP_PIU_MST",
    "service-discovery": {
        "enable": "true",
        "multicast": "237.aa.bb.c",
        "port": "30490",
        "protocol": "udp",
        "initial_delay_min": "10",
        "initial_delay_max": "50",
        "repetitions_base_delay": "100",
        "repetitions_max": "4",
        "ttl": "3",
        "cyclic_offer_delay": "1000",
        "request_response_delay": "20"
    } 

`
 "unicast": "192.168.yy.y",
"network": "SOME_IP_RADAR",
"netmask": "255.255.255.0",
"logging": {
    "level": "debug",
    "console": "true",
    "file": {
        "enable": "false",
        "path": "/tmp/vsomeip.log"
    },
    "dlt": "false"
},
"applications": [
    {
        "name": "RADAR",
        "id": "0x320A"
    }
],
"routing-name": "SOME_IP_RADAR",
"service-discovery": {
    "enable": "true",
    "multicast": "237.aa.bb.c",
    "port": "30490",
    "protocol": "udp",
    "initial_delay_min": "10",
    "initial_delay_max": "50",
    "repetitions_base_delay": "100",
    "repetitions_max": "4",
    "ttl": "3",
    "cyclic_offer_delay": "1000",
    "request_response_delay": "20"
}
`

3. Pass configuration files path as env var :
   VSOMEIP_CONFIGURATION=/data/resim/system_resim_runner/build_sdv/config/BL6.0/PIU_Mst/SOME_IP_Secure_Domain_01.json VSOMEIP_CONFIGURATION_RADAR=/data/resim/system_resim_runner/build_sdv/config/BL6.0/RADAR/SOME_IP_Secure_Domain_01.json ./my_exe

In log I see
async::sender thread already running, stopping previous thread..

And a repeated loop of SUBSCRIBE -> UNSUBSCRIBE and Reboot detected. Here a snapshot :

2026-04-02 11:57:42.932501 [verbose] async::sender thread already running, stopping previous thread..
2026-04-02 11:57:42.934262 [info] udp_server_endpoint_impl<multicast>: SO_RCVBUF is: 212992 (1703936) local port:30490
2026-04-02 11:57:42.934350 [info] udp_server_endpoint_impl: SO_RCVBUF is: 212992 (1703936) local port:30501
2026-04-02 11:57:42.934073 [verbose] async::sender thread started
2026-04-02 11:57:42.935028 [info] SOME/IP routing ready.
2026-04-02 11:57:42.936187 [info] udp_server_endpoint_impl: SO_RCVBUF is: 212992 (1703936) local port:30601
2026-04-02 11:57:42.936702 [info] OFFER(320a): [2035.0001:3.1] (true)
[11:57:42.293][ReSim][ExtThread4]Registered service offer:  FrontRadarPmObjects  0x2035, instance 0x1
[11:57:42.293][ReSim][ExtThread4][SOME/IP][RADAR] register_state_handler callback for service: FrontRadarSensorHealth
2026-04-02 11:57:42.937622 [info] OFFER(320a): [2039.0001:3.0] (true)
[11:57:42.293][ReSim][ExtThread4]Registered service offer:  FrontRadarSensorHealth  0x2039, instance 0x1
[11:57:42.293][ReSim][ExtThread4][SOME/IP][RADAR] register_state_handler callback for service: FrontRadarSensorPerformance
2026-04-02 11:57:42.938358 [info] OFFER(320a): [203a.0001:3.1] (true)
[11:57:42.293][ReSim][ExtThread4]Registered service offer:  FrontRadarSensorPerformance  0x203A, instance 0x1
2026-04-02 11:57:42.980433 [info] Reboot detected: IP=192.168.www.ww
2026-04-02 11:57:42.980455 [info] Reboot detected: IP=192.168.www.ww
2026-04-02 11:57:42.981843 [info] expire_subscriptions: removing subscription to 203c.1.1 from target 192.168.www.ww:30701 reliable=false
[11:57:42.298][ReSim][ExtThread2]Client 0x0 port:0 host:70 name: UNSUBSCRIBED on service IndicatorsSignaling
2026-04-02 11:57:42.983014 [info] expire_subscriptions: removing subscription to 203c.1.2 from target 192.168.www.ww:30701 reliable=false
[11:57:42.298][ReSim][ExtThread2]Client 0x0 port:0 host:70 name: UNSUBSCRIBED on service IndicatorsSignaling
2026-04-02 11:57:42.983964 [info] expire_subscriptions: removing subscription to 2041.1.1 from target 192.168.www.ww:30701 reliable=false
[11:57:42.298][ReSim][ExtThread2]Client 0x0 port:0 host:70 name: UNSUBSCRIBED on service FrontWipingModeMgr
[11:57:42.304][ReSim][ExtThread3]Client 0x0 port:0 host:70 name: SUBSCRIBED on service SeatBeltMgr 

So the question is : does it exists a workaround in 3.4.9 to handle multiple routing managers within on executable ?
If not, Do you have an isolated cherry pickable fix in 3.5.1 to integrate in our local 3.4.9 vsomeip version ?

Thank you for your precious help.

Ignazio