Haiku doesn't have the sys/ipc.h sys/sem.h and sys/mman.h files.

[kaoutsis]

Why?

• running the LibMicro (is a portable set of microbenchmarks)

to measure the performance of various system and library calls. (Suggested by Axel). ​http://www.opensolaris.org/os/project/libmicro/

• being more posix

​http://www.opengroup.org/onlinepubs/007908799/xsh/sysipc.h.html ​http://www.opengroup.org/onlinepubs/007908799/xsh/syssem.h.html ​http://www.opengroup.org/pubs/online/7908799/xsh/sysmman.h.html

[kaoutsis]

trying to make libmicro

[duaneb]

Excuse me, has there been any progress on this ticket? I'd like to use mmap, if possible.

If the functionality is there, I'll be happy to shoulder the work, but I can't do much in terms of memory management.

[kaoutsis]

Replying to duaneb:

Excuse me, has there been any progress on this ticket? I'd like to use mmap, if possible.

well, i have compiled the libmicro and i have made some modifications in order to use the native haiku api (namely areas), and 'half-runs'; i tried to avoid using the posix api (sys/ipc.h sys/sem.h and sys/mman.h) because there is really a question if it's worth it, just for the libmicro tests, and seems there are not 'big' apps that needs this api. i think if the modifications proved to be correct we should close the ticket. half-runs means that after the test app runs some tests, it deadlocks in one test :-)

[axeld]

There is a private function sys_vm_map_file() (the runtime loader currently uses that one) that doesn't need much work to be able to be used as mmap() backend. Currently, it requires a file name, but that needs to be changed to get a file descriptor instead.

Of course, to properly implement mprotect() and others, more work would be needed.

[kaoutsis]

libMicro now has its own Ticket: #2064

[korli]

sys/mman.h was added in hrev24964

[scottmc]

Another bnechmark program could use these as well, bonnie++ also requires sys/ipc.h and sys/sem.h. From their website: Bonnie++ is a benchmark suite that is aimed at performing a number of simple tests of hard drive and file system performance.

[emitrax]

I'm working on sem.h and related functions right now. I'll see if I can work on the rest of IPC after I'm done with semaphores.

[emitrax]

sys/sem.h has been added along with ipc.h. Although the latest theorically would imply sys/shm.h and sys/msg, which are not yet implemented, I think this ticket can be closed.