How to view/read the used shmids of iceoryx?

[hannes09]

I want to inspect the shared memory managed by iceoryx.
Command line tools like
ipcs

dont show any shared memory segments in my setup. Why?

Output of ipcs -m :

------ Shared Memory Segments -------- key shmid owner perms bytes nattch status

/dev/shm/iceoryx_mgmt exist and I also have a working ROS2 zero copy topic.

[elfenpiff]

@hannes09

According to the man page of ipcs it shows information on System V inter-process communication facilities but iceoryx is using posix semaphores and posix shared memory.
You can find the file handles of those constructs in /dev/shm but I am not aware of a tool like ipcs for posix ipc constructs.

[hannes09]

Also lsipc --shmem shows no entry.

Does the posix shared memory have segemts id?

I want to get the shmids to work with shmat on some of the shared memory.