Sync Functionalities
Repository where classes and functions used to share elements within python are stored.
Once a shared object is created and initilized with data, all the data stored in that
object must have the same type.
IPC channels
The system maximum POSIX queues size is defined by RLIMIT_MSGQUEUE
constant used on
posix library. It also can be checked by means of ulimit -q
command. Default value is
819200 bytes. It determines the number of queues allowed:
num_queues = RLIMIT_MSGQUEUE/num_msg_per_queue/max_msg_size
The maximum length of a message sent through POSIX queue is define in the file:
cat /proc/sys/fs/mqueue/msgsize_max
Can be change using the command:
sudo sh -c 'echo 200 > /proc/sys/fs/mqueue/msgsize_max'
The maximum number of a messages allocated in a POSIX queue is define in the file:
cat /proc/sys/fs/mqueue/msg_max
Can be change using the command:
sudo sh -c 'echo 200 > /proc/sys/fs/mqueue/msg_max'
The parameters max_msg
and max_message_size
given to SysShdIpcChanC
must be
lower that ones specified on Linux files.
For further information, check the Github Issue: Change default values for message queue