Sam Tregar <[EMAIL PROTECTED]> writes: >On Tue, 29 Aug 2000, Nick Ing-Simmons wrote: >> David L . Nicol <[EMAIL PROTECTED]> writes: >> > >> >does sysV shm not support the equivalent security as the file system? >> >> mmap() has the file system. > >I wasn't aware that mmap() was part of SysV shared memory. It is NOT. It is another (POSIX) way of getting shared memory bewteen processes. Even without MAP_SHARED OS will share un-modified pages between processes. It happens to be the way modern UNIX implemements "shared .text". i.e. the ".text" part of the object file is mmap()'ed into each process. >My >mistake? It's not on the SysV IPC man pages on my Linux system. The mmap >manpage doesn't mention SysV IPC either. SysV IPC is a mess IMHO. My point was that if the "file system" is considered sufficient then mmap()ing file system objects will get you "shared code" or "shared data" without any tedious reinventing of wheels. -- Nick Ing-Simmons
- Re: the C JIT David L. Nicol
- Re: the C JIT Ken Fox
- Re: the C JIT David L. Nicol
- Re: the C JIT Uri Guttman
- Re: the C JIT John Porter
- Re: the C JIT John Porter
- Re: the C JIT John Porter
- Re: RFC 155 - Remove geometric functions from core Russ Allbery
- Re: RFC 155 - Remove geometric functions from core Nick Ing-Simmons
- Re: RFC 155 - Remove geometric functions from core Sam Tregar
- Re: RFC 155 - Remove geometric functions from core Nick Ing-Simmons
- Re: RFC 155 - Remove geometric functions from core Tom Christiansen
- Re: RFC 155 - Remove geometric functions from core Uri Guttman
- Re: RFC 155 - Remove geometric functions from core Jarkko Hietaniemi
- Re: RFC 155 - Remove geometric functions from core Tom Christiansen
- Re: RFC 155 - Remove geometric functions from core Jarkko Hietaniemi
- Re: RFC 155 - Remove geometric functions from core Uri Guttman
- Re: RFC 155 - Remove geometric functions from core Jarkko Hietaniemi
- Re: RFC 155 - Remove geometric functions from core Tom Christiansen
- Re: RFC 155 - Remove geometric functions from core Dan Sugalski
- Re: RFC 155 - Remove geometric functions from core Stephen P. Potter