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configure: Add function check for mlock(2), mmap(2).

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This commit is contained in:
Jason Volk 2021-03-17 13:09:40 -07:00
parent 047eb1a384
commit c0072f732c
2 changed files with 6 additions and 0 deletions
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2
configure.ac
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@ -1167,7 +1167,9 @@ AC_CHECK_FUNCS([ \
backtrace \ backtrace \
fadvise \ fadvise \
madvise \ madvise \
mlock \
mlock2 \ mlock2 \
mmap \
posix_fadvise \ posix_fadvise \
posix_madvise \ posix_madvise \
preadv2 \ preadv2 \

4
ircd/fs.cc
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@ -2061,10 +2061,14 @@ ircd::fs::map::map(const fd &fd,
size?: fs::size(fd) size?: fs::size(fd)
}; };
#ifdef HAVE_MMAP
void *const &ptr void *const &ptr
{ {
::mmap(nullptr, map_size, prot(opts), flags(opts), int(fd), opts.offset) ::mmap(nullptr, map_size, prot(opts), flags(opts), int(fd), opts.offset)
}; };
#else
#error "Missing ::mmap(2) on this platform."
#endif
if(unlikely(ptr == MAP_FAILED)) if(unlikely(ptr == MAP_FAILED))
throw_system_error(errno); throw_system_error(errno);