Subject: Re: HLL-to-C compilation
From: (Rob Warnock)
Date: 1997/12/06
Newsgroups: comp.lang.misc,comp.lang.scheme
Message-ID: <66askd$>

James Rauser  <> wrote:
| Michael Sperber [Mr. Preprocessor] wrote:
| > ... or use mmap.
| I could "compile" the serialized versions into mmap-able files, but
| that would lead to problems with the number of open file descriptors:
| all of the modules are individually demand-loaded.

In the Unixes I know, once you've mmap'd a file, you can close the
file descriptor without losing the mapping [and you don't need the
FD to "munmap" the pages]. In fact, this is how ".so" libraries get
into your address space!  So whatever limit an O/S has on simultaneous
mmap'd files per process should be the same as whatever limit there
is on simultaneous dlopen'd libraries...


Rob Warnock, 7L-551
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