On Feb 27, 2018 5:39 AM, "vijay sharma via Boost"
wrote:
Hi All,
I am having two processes and they are sharing shared-memory.
- Process-1 (implemented in c++ and using
boost::interprocess::managed_shared_memory interface)
- Process-2 (implemented in c and using "she_open" and "mmap" interfaces)
This code was working fine on Linux But When I deployed same code on
FreeBSD. Process-2 (C lang based) is keep on throwing error in mmap. Error
is "Bad file Descriptor".
Please let me know:
1. Do I need to change the interface while moving from Linux to FreeBSD.
2. Is there any known issue with this design.
Code Snippet:
Process-1(c++):
obj = new boost::interprocess::managed_shared_memory(
boost::interprocess::open_or_create,, ); // to
create shm
obj->allocate() ; // to write in shm
Process-2 (c):
int fd = shm_open(,O_RDWR, 0666);void * startpoint =
mmap(NULL, , PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); //
using the startpoint to read data written by process-1.
Maybe it is your filesystem. For example, jffs2 doesn't support shared
writable mmaps.
Boost version:
Boost.1.63.0
I have raised same on stackoverflow.com and below is the link:
https://stackoverflow.com/questions/48984703/boost-
managed-shared-memory-not-working-with-cs-mmap-call-on-freebsd
Thanks,
Vijay
_______________________________________________
Unsubscribe & other changes: http://lists.boost.org/
mailman/listinfo.cgi/boost
