Feature #157
cpmsrv shared memory - information about clients
| Status: | Closed | Start date: | 06/05/2017 | |
|---|---|---|---|---|
| Priority: | Normal (Code 4) | Due date: | ||
| Assignee: | - | % Done: | 100% | |
| Category: | - | |||
| Target version: | - |
Description
We shall have shared memory block with TAG-SUBSECT:PID/exe name entries. This shall be linearly indexed in memory. With the same approach as with service entries in memory. Maybe we need some common functions.
Thus at the startup we shall try to attach existing memory block and try to get infos from there and update our internal structs.
Also this would mean that if we monitor processes, we need to monitor them periodically by scanning for process existence. This is additionally to sigchild monitor. The same way as with ndrxd done.
History
#1 Updated by Madars almost 7 years ago
- Subject changed from client admin shared memory - information about clients to cpmsrv shared memory - information about clients
#2 Updated by Madars almost 5 years ago
xadmin down shall use the SHM infos too to kill any clients left over...
#3 Updated by Madars almost 5 years ago
Generic linear hash shall be built based on position_get_qstr
#4 Updated by Madars over 4 years ago
Two maps are needed:
clt/subsect -> PID/exe
For monitoring purposes:
PID -> clt/subsect
#5 Updated by Madars over 4 years ago
So when process is booting we shall:
- Check the shared memory for existing clients if there are and pid exists, then assume process is running. The process name shall be matched against process name and PID.
- when client changes the status, both shared mem blocks must be updated
- when cpmsrv exists, the shared mem blocks and rw semaphore must be removed
#6 Updated by Madars about 4 years ago
- Status changed from New to Resolved
- % Done changed from 0 to 100
This was released in 7.0 version. Required as part of TM MIB.
#7 Updated by Madars about 4 years ago
- Status changed from Resolved to Closed