introduce a couple of new turn-off-gcc-warning variables and use them.

GCC 14 has a new annoying calloc() checker that we turn off in a bunch
of places, and there are a few more dangling-pointer issuse that come up,
but seem bogus.

Correct the documentation of cdbr_open_mem(3)

Fix function prototype in the man-page.
Add link cdbr_open_mem(3) -> cdbr(3).

branches: 1.3.24; 1.3.26;
Allow kernel code to access constant databases by moving cdbr(3) and the
required mi_vector_hash(3) into src/common.

branches: 1.2.2;
hack to silence lint

branches: 1.1.6;
Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.

Fix typo. Reported by rudolf on netbsd-docs.

Merge riastradh-drm2 to HEAD.

Use Mt for email addresses.

branches: 1.3.6; 1.3.12; 1.3.16;
.Pp after .Ed.

Various fixes, mostly for typos.

Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.

Add
#include <cdbr.h>
to the synopsis.

Correct the documentation of cdbr_open_mem(3)

Fix function prototype in the man-page.
Add link cdbr_open_mem(3) -> cdbr(3).

branches: 1.5.2; 1.5.4;
Remove cdbr_write from NAME section, it's a left over
Also add comma after the first Nm entry

ok joerg@

Add cdbr_open_mem.

Use Mt for email addresses.

branches: 1.2.6; 1.2.12; 1.2.16;
Various fixes, mostly for typos.

Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.

Moved to src/common.

CID 1135779: Fix resource leak

Add cdbr_open_mem.

Don't refuse the open databases without entries or keys, just protect
the divisions. cdbr_find and cdbr_get already have the appropiate
checks.

branches: 1.3.2;
Add cdbr(3) support to tools/compat.

branches: 1.2.6; 1.2.8;
Use MAP_FILE|MAP_SHARED instead of MAP_FILE for the flags parameter of mmap(2).
Patch is from martin.

Solves my own PR kern/43346

Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.

cdbw(3): Make cdbw_output descr parameter type less confusing.

This is a string of _up to_ 16 bytes, used with strncpy(..., 16).
Specifying `const char descr[16]', while formally equivalent to
`const char *descr' in standard C, now provokes the ire of gcc when
the caller does not provide a buffer of at least 16 bytes.

bump the date

cdbw(3) man page: fix the header file name and use .Fa for function arguments.

Use Mt for email addresses.

branches: 1.5.2; 1.5.4;
Fix typos.

Add a special seeder for cdbw_output that gives stable results.
Hook up cdbw(3) for the tool build.

branches: 1.3.6; 1.3.8;
this page title is CDBW

Various fixes, mostly for typos.

Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.

cdbw(3): Make cdbw_output descr parameter type less confusing.

This is a string of _up to_ 16 bytes, used with strncpy(..., 16).
Specifying `const char descr[16]', while formally equivalent to
`const char *descr' in standard C, now provokes the ire of gcc when
the caller does not provide a buffer of at least 16 bytes.

lib: remove CONSTCOND comment

Since 2021-01-31, lint doesn't need it anymore for the common pattern of
'do ... while (0)'.

Optimize CPU and memory use of cdbw(3)

Reduce memory footprint and processing time by dropping the vertex parts
of the edges kept during the peeling. Hook up the
division-by-multiplication logic to help older platforms.

Use a more efficient data structure for graph peeling.

New code is about 50% faster on amd64 and it consumes less memory.

Redo hashing, if two of the three individual hashes result in identical
hash modules. This is the trivial case for loops in the 3-graph and got
lost when adopting the nbperf code.

Add a special seeder for cdbw_output that gives stable results.
Hook up cdbw(3) for the tool build.

Revert bloat.

PR/45989: Martin Husemann: lint invocation does include -w only on i386

- turn lint -w for all the platforms after fixing the lint warnings.
- add _DIAGASSERTS() for casts that would assign values to types that
would not fit.
- change types, add casts
- change into ansii prototypes
- turn on _DIAGNOSTIC for libc (during current, to be eliminated for release
builds)

approved by core@

branches: 1.1.6; 1.1.8;
Add the constant database reader (cdbr(3)) and writer ((cdbw(3)).
They implement a space efficent write-once database with fast access
path. Switch the services(5) database to use cdb. The size of the
database file decreases from 2.1MB disk space to 307KB. Access
performance is about the same if setservent(0) is used and about an
order of magnitude faster otherwise. services_mkdb defaults to the new
format, but can optionally create the old db(3) format as well for
statically linked legacy applications.